Merge tag 'nektos/v0.2.34'

.github/workflows/checks.yml

@@ -19,10 +19,10 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
           check-latest: true
-      - uses: golangci/golangci-lint-action@v3.3.0
+      - uses: golangci/golangci-lint-action@v3.3.1
         with:
           version: v1.47.2
-      - uses: megalinter/megalinter/flavors/go@v6.13.0
+      - uses: megalinter/megalinter/flavors/go@v6.15.0
         env:
           DEFAULT_BRANCH: master
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -50,13 +50,32 @@ jobs:
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
-      - run: go test -v -cover -coverprofile=coverage.txt -covermode=atomic ./...
+      - run: go test -v -cover -coverprofile=coverage.txt -covermode=atomic -timeout 15m ./...
       - name: Upload Codecov report
         uses: codecov/codecov-action@v3.1.1
         with:
           files: coverage.txt
           fail_ci_if_error: true # optional (default = false)
 
+  test-host:
+    strategy:
+      matrix:
+        os:
+          - windows-latest
+          - macos-latest
+    name: test-${{matrix.os}}
+    runs-on: ${{matrix.os}}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 2
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          check-latest: true
+      - run: go test -v -run ^TestRunEventHostEnvironment$ ./...
+    # TODO merge coverage with test-linux
+
   snapshot:
     name: snapshot
     runs-on: ubuntu-latest

.mergify.yml

@@ -70,7 +70,7 @@ pull_request_rules:
           - 'author~=^dependabot(|-preview)\[bot\]$'
           - and:
               - 'approved-reviews-by=@nektos/act-maintainers'
-              - '#approved-reviews-by>=3'
+              - '#approved-reviews-by>=2'
       - -draft
       - -merged
       - -closed

README.md

@@ -55,7 +55,7 @@ If you are using Linux, you will need to [install Docker Engine](https://docs.do
 brew install act
 ```
 
-or if you want to install version based on latest commit, you can run below (it requires compiler to be installed installed but Homebrew will suggest you how to install it, if you don't have it):
+or if you want to install version based on latest commit, you can run below (it requires compiler to be installed but Homebrew will suggest you how to install it, if you don't have it):
 
 ```shell
 brew install act --HEAD
@@ -162,6 +162,9 @@ act pull_request
 # Run a specific job:
 act -j test
 
+# Run a job in a specific workflow (useful if you have duplicate job names)
+act -j lint -W .github/workflows/checks.yml
+
 # Run in dry-run mode:
 act -n
 

go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/AlecAivazis/survey/v2 v2.3.6
 	github.com/Masterminds/semver v1.5.0
 	github.com/andreaskoch/go-fswatch v1.0.0
+	github.com/creack/pty v1.1.18
 	github.com/docker/cli v20.10.21+incompatible
 	github.com/docker/distribution v2.8.1+incompatible
 	github.com/docker/docker v20.10.21+incompatible
@@ -19,11 +20,11 @@ require (
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/mattn/go-isatty v0.0.16
 	github.com/mitchellh/go-homedir v1.1.0
-	github.com/moby/buildkit v0.10.5
+	github.com/moby/buildkit v0.10.6
 	github.com/opencontainers/image-spec v1.0.3-0.20211202183452-c5a74bcca799
 	github.com/opencontainers/selinux v1.10.2
 	github.com/pkg/errors v0.9.1
-	github.com/rhysd/actionlint v1.6.21
+	github.com/rhysd/actionlint v1.6.22
 	github.com/sabhiram/go-gitignore v0.0.0-20210923224102-525f6e181f06
 	github.com/sirupsen/logrus v1.9.0
 	github.com/spf13/cobra v1.6.1

go.sum

@@ -242,8 +242,9 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsr
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
-github.com/creack/pty v1.1.17 h1:QeVUsEDNrLBW4tMgZHvxy18sKtr6VI492kBhUfhDJNI=
 github.com/creack/pty v1.1.17/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
+github.com/creack/pty v1.1.18 h1:n56/Zwd5o6whRC5PMGretI4IdRLlmBXYNjScPaBgsbY=
+github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
 github.com/cyphar/filepath-securejoin v0.2.2/go.mod h1:FpkQEhXnPnOthhzymB7CGsFk2G9VLXONKD9G7QGMM+4=
 github.com/cyphar/filepath-securejoin v0.2.3/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
 github.com/d2g/dhcp4 v0.0.0-20170904100407-a1d1b6c41b1c/go.mod h1:Ct2BUK8SB0YC1SMSibvLzxjeJLnrYEVLULFNiHY9YfQ=
@@ -538,8 +539,8 @@ github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrk
 github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/osext v0.0.0-20151018003038-5e2d6d41470f/go.mod h1:OkQIRizQZAeMln+1tSwduZz7+Af5oFlKirV/MSYes2A=
-github.com/moby/buildkit v0.10.5 h1:d9krS/lG3dn6N7y+R8o9PTgIixlYAaDk35f3/B4jZOw=
+github.com/moby/buildkit v0.10.6 h1:DJlEuLIgnu34HQKF4n9Eg6q2YqQVC0eOpMb4p2eRS2w=
-github.com/moby/buildkit v0.10.5/go.mod h1:Yajz9vt1Zw5q9Pp4pdb3TCSUXJBIroIQGQ3TTs/sLug=
+github.com/moby/buildkit v0.10.6/go.mod h1:tQuuyTWtOb9D+RE425cwOCUkX0/oZ+5iBZ+uWpWQ9bU=
 github.com/moby/locker v1.0.1/go.mod h1:S7SDdo5zpBK84bzzVlKr2V0hz+7x9hWbYC/kq7oQppc=
 github.com/moby/sys/mount v0.3.1 h1:RX1K0x95oR8j5P1YefKDt7tE1C2kCCixV0H8Aza3GaI=
 github.com/moby/sys/mount v0.3.1/go.mod h1:6IZknFQiqjLpwuYJD5Zk0qYEuJiws36M88MIXnZHya0=
@@ -654,8 +655,8 @@ github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4O
 github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
 github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
-github.com/rhysd/actionlint v1.6.21 h1:OSCP03XnvWSRAhUmA5onpgyGG+3NVoQTCu4UX0Rc2dY=
+github.com/rhysd/actionlint v1.6.22 h1:cAEf2PGNwJXhdcTVF2xS/0ORqWS+ueUHwjQYsqFsGSk=
-github.com/rhysd/actionlint v1.6.21/go.mod h1:gIKOdxtV40mBOcD0ZR8EBa8NqjEXToAZioroS3oedMg=
+github.com/rhysd/actionlint v1.6.22/go.mod h1:gIKOdxtV40mBOcD0ZR8EBa8NqjEXToAZioroS3oedMg=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.3.4 h1:3Z3Eu6FGHZWSfNKJTOUiPatWwfc7DzJRU04jFUqJODw=
 github.com/rivo/uniseg v0.3.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=

pkg/container/docker_logger.go

@@ -22,59 +22,6 @@ type dockerMessage struct {
 
 const logPrefix = "  \U0001F433  "
 
-/*
-func logDockerOutput(ctx context.Context, dockerResponse io.Reader) {
-	logger := common.Logger(ctx)
-	if entry, ok := logger.(*logrus.Entry); ok {
-		w := entry.Writer()
-		_, err := stdcopy.StdCopy(w, w, dockerResponse)
-		if err != nil {
-			logrus.Error(err)
-		}
-	} else if lgr, ok := logger.(*logrus.Logger); ok {
-		w := lgr.Writer()
-		_, err := stdcopy.StdCopy(w, w, dockerResponse)
-		if err != nil {
-			logrus.Error(err)
-		}
-	} else {
-		logrus.Errorf("Unable to get writer from logger (type=%T)", logger)
-	}
-}
-*/
-
-/*
-func streamDockerOutput(ctx context.Context, dockerResponse io.Reader) {
-	/*
-		out := os.Stdout
-		go func() {
-			<-ctx.Done()
-			//fmt.Println()
-		}()
-
-		_, err := io.Copy(out, dockerResponse)
-		if err != nil {
-			logrus.Error(err)
-		}
-	* /
-
-	logger := common.Logger(ctx)
-	reader := bufio.NewReader(dockerResponse)
-
-	for {
-		if ctx.Err() != nil {
-			break
-		}
-		line, _, err := reader.ReadLine()
-		if err == io.EOF {
-			break
-		}
-		logger.Debugf("%s\n", line)
-	}
-
-}
-*/
-
 func logDockerResponse(logger logrus.FieldLogger, dockerResponse io.ReadCloser, isError bool) error {
 	if dockerResponse == nil {
 		return nil

pkg/container/docker_run.go

@@ -86,7 +86,7 @@ type Container interface {
 }
 
 // NewContainer creates a reference to a container
-func NewContainer(input *NewContainerInput) Container {
+func NewContainer(input *NewContainerInput) ExecutionsEnvironment {
 	cr := new(containerReference)
 	cr.input = input
 	return cr
@@ -235,6 +235,7 @@ type containerReference struct {
 	input *NewContainerInput
 	UID   int
 	GID   int
+	LinuxContainerEnvironmentExtensions
 }
 
 func GetDockerClient(ctx context.Context) (cli client.APIClient, err error) {

pkg/container/docker_run_test.go

@@ -163,3 +163,6 @@ func TestDockerExecFailure(t *testing.T) {
 	conn.AssertExpectations(t)
 	client.AssertExpectations(t)
 }
+
+// Type assert containerReference implements ExecutionsEnvironment
+var _ ExecutionsEnvironment = &containerReference{}

pkg/container/executions_environment.go

@@ -0,0 +1,13 @@
+package container
+
+import "context"
+
+type ExecutionsEnvironment interface {
+	Container
+	ToContainerPath(string) string
+	GetActPath() string
+	GetPathVariableName() string
+	DefaultPathVariable() string
+	JoinPathVariable(...string) string
+	GetRunnerContext(ctx context.Context) map[string]interface{}
+}

pkg/container/file_collector.go

@@ -59,6 +59,29 @@ func (tc tarCollector) WriteFile(fpath string, fi fs.FileInfo, linkName string,
 	return nil
 }
 
+type copyCollector struct {
+	DstDir string
+}
+
+func (cc *copyCollector) WriteFile(fpath string, fi fs.FileInfo, linkName string, f io.Reader) error {
+	fdestpath := filepath.Join(cc.DstDir, fpath)
+	if err := os.MkdirAll(filepath.Dir(fdestpath), 0777); err != nil {
+		return err
+	}
+	if f == nil {
+		return os.Symlink(linkName, fdestpath)
+	}
+	df, err := os.OpenFile(fdestpath, os.O_CREATE|os.O_WRONLY, fi.Mode())
+	if err != nil {
+		return err
+	}
+	defer df.Close()
+	if _, err := io.Copy(df, f); err != nil {
+		return err
+	}
+	return nil
+}
+
 type fileCollector struct {
 	Ignorer   gitignore.Matcher
 	SrcPath   string

pkg/container/host_environment.go

@@ -0,0 +1,470 @@
+package container
+
+import (
+	"archive/tar"
+	"bufio"
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"io/fs"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+
+	"errors"
+
+	"github.com/go-git/go-billy/v5/helper/polyfill"
+	"github.com/go-git/go-billy/v5/osfs"
+	"github.com/go-git/go-git/v5/plumbing/format/gitignore"
+	"github.com/nektos/act/pkg/common"
+	"github.com/nektos/act/pkg/lookpath"
+	"golang.org/x/term"
+)
+
+type HostEnvironment struct {
+	Path      string
+	TmpDir    string
+	ToolCache string
+	Workdir   string
+	ActPath   string
+	CleanUp   func()
+	StdOut    io.Writer
+}
+
+func (e *HostEnvironment) Create(capAdd []string, capDrop []string) common.Executor {
+	return func(ctx context.Context) error {
+		return nil
+	}
+}
+
+func (e *HostEnvironment) Close() common.Executor {
+	return func(ctx context.Context) error {
+		return nil
+	}
+}
+
+func (e *HostEnvironment) Copy(destPath string, files ...*FileEntry) common.Executor {
+	return func(ctx context.Context) error {
+		for _, f := range files {
+			if err := os.MkdirAll(filepath.Dir(filepath.Join(destPath, f.Name)), 0777); err != nil {
+				return err
+			}
+			if err := os.WriteFile(filepath.Join(destPath, f.Name), []byte(f.Body), fs.FileMode(f.Mode)); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+}
+
+func (e *HostEnvironment) CopyDir(destPath string, srcPath string, useGitIgnore bool) common.Executor {
+	return func(ctx context.Context) error {
+		logger := common.Logger(ctx)
+		srcPrefix := filepath.Dir(srcPath)
+		if !strings.HasSuffix(srcPrefix, string(filepath.Separator)) {
+			srcPrefix += string(filepath.Separator)
+		}
+		logger.Debugf("Stripping prefix:%s src:%s", srcPrefix, srcPath)
+		var ignorer gitignore.Matcher
+		if useGitIgnore {
+			ps, err := gitignore.ReadPatterns(polyfill.New(osfs.New(srcPath)), nil)
+			if err != nil {
+				logger.Debugf("Error loading .gitignore: %v", err)
+			}
+
+			ignorer = gitignore.NewMatcher(ps)
+		}
+		fc := &fileCollector{
+			Fs:        &defaultFs{},
+			Ignorer:   ignorer,
+			SrcPath:   srcPath,
+			SrcPrefix: srcPrefix,
+			Handler: &copyCollector{
+				DstDir: destPath,
+			},
+		}
+		return filepath.Walk(srcPath, fc.collectFiles(ctx, []string{}))
+	}
+}
+
+func (e *HostEnvironment) GetContainerArchive(ctx context.Context, srcPath string) (io.ReadCloser, error) {
+	buf := &bytes.Buffer{}
+	tw := tar.NewWriter(buf)
+	defer tw.Close()
+	srcPath = filepath.Clean(srcPath)
+	fi, err := os.Lstat(srcPath)
+	if err != nil {
+		return nil, err
+	}
+	tc := &tarCollector{
+		TarWriter: tw,
+	}
+	if fi.IsDir() {
+		srcPrefix := filepath.Dir(srcPath)
+		if !strings.HasSuffix(srcPrefix, string(filepath.Separator)) {
+			srcPrefix += string(filepath.Separator)
+		}
+		fc := &fileCollector{
+			Fs:        &defaultFs{},
+			SrcPath:   srcPath,
+			SrcPrefix: srcPrefix,
+			Handler:   tc,
+		}
+		err = filepath.Walk(srcPath, fc.collectFiles(ctx, []string{}))
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		var f io.ReadCloser
+		var linkname string
+		if fi.Mode()&fs.ModeSymlink != 0 {
+			linkname, err = os.Readlink(srcPath)
+			if err != nil {
+				return nil, err
+			}
+		} else {
+			f, err = os.Open(srcPath)
+			if err != nil {
+				return nil, err
+			}
+			defer f.Close()
+		}
+		err := tc.WriteFile(fi.Name(), fi, linkname, f)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return io.NopCloser(buf), nil
+}
+
+func (e *HostEnvironment) Pull(forcePull bool) common.Executor {
+	return func(ctx context.Context) error {
+		return nil
+	}
+}
+
+func (e *HostEnvironment) Start(attach bool) common.Executor {
+	return func(ctx context.Context) error {
+		return nil
+	}
+}
+
+type ptyWriter struct {
+	Out       io.Writer
+	AutoStop  bool
+	dirtyLine bool
+}
+
+func (w *ptyWriter) Write(buf []byte) (int, error) {
+	if w.AutoStop && len(buf) > 0 && buf[len(buf)-1] == 4 {
+		n, err := w.Out.Write(buf[:len(buf)-1])
+		if err != nil {
+			return n, err
+		}
+		if w.dirtyLine || len(buf) > 1 && buf[len(buf)-2] != '\n' {
+			_, _ = w.Out.Write([]byte("\n"))
+			return n, io.EOF
+		}
+		return n, io.EOF
+	}
+	w.dirtyLine = strings.LastIndex(string(buf), "\n") < len(buf)-1
+	return w.Out.Write(buf)
+}
+
+type localEnv struct {
+	env map[string]string
+}
+
+func (l *localEnv) Getenv(name string) string {
+	if runtime.GOOS == "windows" {
+		for k, v := range l.env {
+			if strings.EqualFold(name, k) {
+				return v
+			}
+		}
+		return ""
+	}
+	return l.env[name]
+}
+
+func lookupPathHost(cmd string, env map[string]string, writer io.Writer) (string, error) {
+	f, err := lookpath.LookPath2(cmd, &localEnv{env: env})
+	if err != nil {
+		err := "Cannot find: " + fmt.Sprint(cmd) + " in PATH"
+		if _, _err := writer.Write([]byte(err + "\n")); _err != nil {
+			return "", fmt.Errorf("%v: %w", err, _err)
+		}
+		return "", errors.New(err)
+	}
+	return f, nil
+}
+
+func setupPty(cmd *exec.Cmd, cmdline string) (*os.File, *os.File, error) {
+	ppty, tty, err := openPty()
+	if err != nil {
+		return nil, nil, err
+	}
+	if term.IsTerminal(int(tty.Fd())) {
+		_, err := term.MakeRaw(int(tty.Fd()))
+		if err != nil {
+			ppty.Close()
+			tty.Close()
+			return nil, nil, err
+		}
+	}
+	cmd.Stdin = tty
+	cmd.Stdout = tty
+	cmd.Stderr = tty
+	cmd.SysProcAttr = getSysProcAttr(cmdline, true)
+	return ppty, tty, nil
+}
+
+func writeKeepAlive(ppty io.Writer) {
+	c := 1
+	var err error
+	for c == 1 && err == nil {
+		c, err = ppty.Write([]byte{4})
+		<-time.After(time.Second)
+	}
+}
+
+func copyPtyOutput(writer io.Writer, ppty io.Reader, finishLog context.CancelFunc) {
+	defer func() {
+		finishLog()
+	}()
+	if _, err := io.Copy(writer, ppty); err != nil {
+		return
+	}
+}
+
+func (e *HostEnvironment) UpdateFromImageEnv(env *map[string]string) common.Executor {
+	return func(ctx context.Context) error {
+		return nil
+	}
+}
+
+func getEnvListFromMap(env map[string]string) []string {
+	envList := make([]string, 0)
+	for k, v := range env {
+		envList = append(envList, fmt.Sprintf("%s=%s", k, v))
+	}
+	return envList
+}
+
+func (e *HostEnvironment) exec(ctx context.Context, command []string, cmdline string, env map[string]string, user, workdir string) error {
+	envList := getEnvListFromMap(env)
+	var wd string
+	if workdir != "" {
+		if filepath.IsAbs(workdir) {
+			wd = workdir
+		} else {
+			wd = filepath.Join(e.Path, workdir)
+		}
+	} else {
+		wd = e.Path
+	}
+	f, err := lookupPathHost(command[0], env, e.StdOut)
+	if err != nil {
+		return err
+	}
+	cmd := exec.CommandContext(ctx, f)
+	cmd.Path = f
+	cmd.Args = command
+	cmd.Stdin = nil
+	cmd.Stdout = e.StdOut
+	cmd.Env = envList
+	cmd.Stderr = e.StdOut
+	cmd.Dir = wd
+	cmd.SysProcAttr = getSysProcAttr(cmdline, false)
+	var ppty *os.File
+	var tty *os.File
+	defer func() {
+		if ppty != nil {
+			ppty.Close()
+		}
+		if tty != nil {
+			tty.Close()
+		}
+	}()
+	if true /* allocate Terminal */ {
+		var err error
+		ppty, tty, err = setupPty(cmd, cmdline)
+		if err != nil {
+			common.Logger(ctx).Debugf("Failed to setup Pty %v\n", err.Error())
+		}
+	}
+	writer := &ptyWriter{Out: e.StdOut}
+	logctx, finishLog := context.WithCancel(context.Background())
+	if ppty != nil {
+		go copyPtyOutput(writer, ppty, finishLog)
+	} else {
+		finishLog()
+	}
+	if ppty != nil {
+		go writeKeepAlive(ppty)
+	}
+	err = cmd.Run()
+	if err != nil {
+		return err
+	}
+	if tty != nil {
+		writer.AutoStop = true
+		if _, err := tty.Write([]byte("\x04")); err != nil {
+			common.Logger(ctx).Debug("Failed to write EOT")
+		}
+	}
+	<-logctx.Done()
+
+	if ppty != nil {
+		ppty.Close()
+		ppty = nil
+	}
+	return err
+}
+
+func (e *HostEnvironment) Exec(command []string /*cmdline string, */, env map[string]string, user, workdir string) common.Executor {
+	return func(ctx context.Context) error {
+		if err := e.exec(ctx, command, "" /*cmdline*/, env, user, workdir); err != nil {
+			select {
+			case <-ctx.Done():
+				return fmt.Errorf("this step has been cancelled: %w", err)
+			default:
+				return err
+			}
+		}
+		return nil
+	}
+}
+
+func (e *HostEnvironment) UpdateFromEnv(srcPath string, env *map[string]string) common.Executor {
+	localEnv := *env
+	return func(ctx context.Context) error {
+		envTar, err := e.GetContainerArchive(ctx, srcPath)
+		if err != nil {
+			return nil
+		}
+		defer envTar.Close()
+		reader := tar.NewReader(envTar)
+		_, err = reader.Next()
+		if err != nil && err != io.EOF {
+			return err
+		}
+		s := bufio.NewScanner(reader)
+		for s.Scan() {
+			line := s.Text()
+			singleLineEnv := strings.Index(line, "=")
+			multiLineEnv := strings.Index(line, "<<")
+			if singleLineEnv != -1 && (multiLineEnv == -1 || singleLineEnv < multiLineEnv) {
+				localEnv[line[:singleLineEnv]] = line[singleLineEnv+1:]
+			} else if multiLineEnv != -1 {
+				multiLineEnvContent := ""
+				multiLineEnvDelimiter := line[multiLineEnv+2:]
+				delimiterFound := false
+				for s.Scan() {
+					content := s.Text()
+					if content == multiLineEnvDelimiter {
+						delimiterFound = true
+						break
+					}
+					if multiLineEnvContent != "" {
+						multiLineEnvContent += "\n"
+					}
+					multiLineEnvContent += content
+				}
+				if !delimiterFound {
+					return fmt.Errorf("invalid format delimiter '%v' not found before end of file", multiLineEnvDelimiter)
+				}
+				localEnv[line[:multiLineEnv]] = multiLineEnvContent
+			} else {
+				return fmt.Errorf("invalid format '%v', expected a line with '=' or '<<'", line)
+			}
+		}
+		env = &localEnv
+		return nil
+	}
+}
+
+func (e *HostEnvironment) UpdateFromPath(env *map[string]string) common.Executor {
+	localEnv := *env
+	return func(ctx context.Context) error {
+		pathTar, err := e.GetContainerArchive(ctx, localEnv["GITHUB_PATH"])
+		if err != nil {
+			return err
+		}
+		defer pathTar.Close()
+
+		reader := tar.NewReader(pathTar)
+		_, err = reader.Next()
+		if err != nil && err != io.EOF {
+			return err
+		}
+		s := bufio.NewScanner(reader)
+		for s.Scan() {
+			line := s.Text()
+			pathSep := string(filepath.ListSeparator)
+			localEnv[e.GetPathVariableName()] = fmt.Sprintf("%s%s%s", line, pathSep, localEnv[e.GetPathVariableName()])
+		}
+
+		env = &localEnv
+		return nil
+	}
+}
+
+func (e *HostEnvironment) Remove() common.Executor {
+	return func(ctx context.Context) error {
+		if e.CleanUp != nil {
+			e.CleanUp()
+		}
+		return os.RemoveAll(e.Path)
+	}
+}
+
+func (e *HostEnvironment) ToContainerPath(path string) string {
+	if bp, err := filepath.Rel(e.Workdir, path); err != nil {
+		return filepath.Join(e.Path, bp)
+	} else if filepath.Clean(e.Workdir) == filepath.Clean(path) {
+		return e.Path
+	}
+	return path
+}
+
+func (e *HostEnvironment) GetActPath() string {
+	return e.ActPath
+}
+
+func (*HostEnvironment) GetPathVariableName() string {
+	if runtime.GOOS == "plan9" {
+		return "path"
+	} else if runtime.GOOS == "windows" {
+		return "Path" // Actually we need a case insensitive map
+	}
+	return "PATH"
+}
+
+func (e *HostEnvironment) DefaultPathVariable() string {
+	v, _ := os.LookupEnv(e.GetPathVariableName())
+	return v
+}
+
+func (*HostEnvironment) JoinPathVariable(paths ...string) string {
+	return strings.Join(paths, string(filepath.ListSeparator))
+}
+
+func (e *HostEnvironment) GetRunnerContext(ctx context.Context) map[string]interface{} {
+	return map[string]interface{}{
+		"os":         runtime.GOOS,
+		"arch":       runtime.GOARCH,
+		"temp":       e.TmpDir,
+		"tool_cache": e.ToolCache,
+	}
+}
+
+func (e *HostEnvironment) ReplaceLogWriter(stdout io.Writer, stderr io.Writer) (io.Writer, io.Writer) {
+	org := e.StdOut
+	e.StdOut = stdout
+	return org, org
+}

pkg/container/host_environment_test.go

@@ -0,0 +1,4 @@
+package container
+
+// Type assert HostEnvironment implements ExecutionsEnvironment
+var _ ExecutionsEnvironment = &HostEnvironment{}

pkg/container/linux_container_environment_extensions.go

@@ -0,0 +1,73 @@
+package container
+
+import (
+	"context"
+	"path/filepath"
+	"regexp"
+	"runtime"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type LinuxContainerEnvironmentExtensions struct {
+}
+
+// Resolves the equivalent host path inside the container
+// This is required for windows and WSL 2 to translate things like C:\Users\Myproject to /mnt/users/Myproject
+// For use in docker volumes and binds
+func (*LinuxContainerEnvironmentExtensions) ToContainerPath(path string) string {
+	if runtime.GOOS == "windows" && strings.Contains(path, "/") {
+		log.Error("You cannot specify linux style local paths (/mnt/etc) on Windows as it does not understand them.")
+		return ""
+	}
+
+	abspath, err := filepath.Abs(path)
+	if err != nil {
+		log.Error(err)
+		return ""
+	}
+
+	// Test if the path is a windows path
+	windowsPathRegex := regexp.MustCompile(`^([a-zA-Z]):\\(.+)$`)
+	windowsPathComponents := windowsPathRegex.FindStringSubmatch(abspath)
+
+	// Return as-is if no match
+	if windowsPathComponents == nil {
+		return abspath
+	}
+
+	// Convert to WSL2-compatible path if it is a windows path
+	// NOTE: Cannot use filepath because it will use the wrong path separators assuming we want the path to be windows
+	// based if running on Windows, and because we are feeding this to Docker, GoLang auto-path-translate doesn't work.
+	driveLetter := strings.ToLower(windowsPathComponents[1])
+	translatedPath := strings.ReplaceAll(windowsPathComponents[2], `\`, `/`)
+	// Should make something like /mnt/c/Users/person/My Folder/MyActProject
+	result := strings.Join([]string{"/mnt", driveLetter, translatedPath}, `/`)
+	return result
+}
+
+func (*LinuxContainerEnvironmentExtensions) GetActPath() string {
+	return "/var/run/act"
+}
+
+func (*LinuxContainerEnvironmentExtensions) GetPathVariableName() string {
+	return "PATH"
+}
+
+func (*LinuxContainerEnvironmentExtensions) DefaultPathVariable() string {
+	return "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+}
+
+func (*LinuxContainerEnvironmentExtensions) JoinPathVariable(paths ...string) string {
+	return strings.Join(paths, ":")
+}
+
+func (*LinuxContainerEnvironmentExtensions) GetRunnerContext(ctx context.Context) map[string]interface{} {
+	return map[string]interface{}{
+		"os":         "Linux",
+		"arch":       RunnerArch(ctx),
+		"temp":       "/tmp",
+		"tool_cache": "/opt/hostedtoolcache",
+	}
+}

pkg/container/linux_container_environment_extensions_test.go

@@ -0,0 +1,71 @@
+package container
+
+import (
+	"fmt"
+	"os"
+	"runtime"
+	"strings"
+	"testing"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestContainerPath(t *testing.T) {
+	type containerPathJob struct {
+		destinationPath string
+		sourcePath      string
+		workDir         string
+	}
+
+	linuxcontainerext := &LinuxContainerEnvironmentExtensions{}
+
+	if runtime.GOOS == "windows" {
+		cwd, err := os.Getwd()
+		if err != nil {
+			log.Error(err)
+		}
+
+		rootDrive := os.Getenv("SystemDrive")
+		rootDriveLetter := strings.ReplaceAll(strings.ToLower(rootDrive), `:`, "")
+		for _, v := range []containerPathJob{
+			{"/mnt/c/Users/act/go/src/github.com/nektos/act", "C:\\Users\\act\\go\\src\\github.com\\nektos\\act\\", ""},
+			{"/mnt/f/work/dir", `F:\work\dir`, ""},
+			{"/mnt/c/windows/to/unix", "windows\\to\\unix", fmt.Sprintf("%s\\", rootDrive)},
+			{fmt.Sprintf("/mnt/%v/act", rootDriveLetter), "act", fmt.Sprintf("%s\\", rootDrive)},
+		} {
+			if v.workDir != "" {
+				if err := os.Chdir(v.workDir); err != nil {
+					log.Error(err)
+					t.Fail()
+				}
+			}
+
+			assert.Equal(t, v.destinationPath, linuxcontainerext.ToContainerPath(v.sourcePath))
+		}
+
+		if err := os.Chdir(cwd); err != nil {
+			log.Error(err)
+		}
+	} else {
+		cwd, err := os.Getwd()
+		if err != nil {
+			log.Error(err)
+		}
+		for _, v := range []containerPathJob{
+			{"/home/act/go/src/github.com/nektos/act", "/home/act/go/src/github.com/nektos/act", ""},
+			{"/home/act", `/home/act/`, ""},
+			{cwd, ".", ""},
+		} {
+			assert.Equal(t, v.destinationPath, linuxcontainerext.ToContainerPath(v.sourcePath))
+		}
+	}
+}
+
+type typeAssertMockContainer struct {
+	Container
+	LinuxContainerEnvironmentExtensions
+}
+
+// Type assert Container + LinuxContainerEnvironmentExtensions implements ExecutionsEnvironment
+var _ ExecutionsEnvironment = &typeAssertMockContainer{}

pkg/container/util.go

@@ -0,0 +1,26 @@
+//go:build (!windows && !plan9 && !openbsd) || (!windows && !plan9 && !mips64)
+
+package container
+
+import (
+	"os"
+	"syscall"
+
+	"github.com/creack/pty"
+)
+
+func getSysProcAttr(cmdLine string, tty bool) *syscall.SysProcAttr {
+	if tty {
+		return &syscall.SysProcAttr{
+			Setsid:  true,
+			Setctty: true,
+		}
+	}
+	return &syscall.SysProcAttr{
+		Setpgid: true,
+	}
+}
+
+func openPty() (*os.File, *os.File, error) {
+	return pty.Open()
+}

pkg/container/util_openbsd_mips64.go

@@ -0,0 +1,17 @@
+package container
+
+import (
+	"errors"
+	"os"
+	"syscall"
+)
+
+func getSysProcAttr(cmdLine string, tty bool) *syscall.SysProcAttr {
+	return &syscall.SysProcAttr{
+		Setpgid: true,
+	}
+}
+
+func openPty() (*os.File, *os.File, error) {
+	return nil, nil, errors.New("Unsupported")
+}

pkg/container/util_plan9.go

@@ -0,0 +1,17 @@
+package container
+
+import (
+	"errors"
+	"os"
+	"syscall"
+)
+
+func getSysProcAttr(cmdLine string, tty bool) *syscall.SysProcAttr {
+	return &syscall.SysProcAttr{
+		Rfork: syscall.RFNOTEG,
+	}
+}
+
+func openPty() (*os.File, *os.File, error) {
+	return nil, nil, errors.New("Unsupported")
+}

pkg/container/util_windows.go

@@ -0,0 +1,15 @@
+package container
+
+import (
+	"errors"
+	"os"
+	"syscall"
+)
+
+func getSysProcAttr(cmdLine string, tty bool) *syscall.SysProcAttr {
+	return &syscall.SysProcAttr{CmdLine: cmdLine, CreationFlags: syscall.CREATE_NEW_PROCESS_GROUP}
+}
+
+func openPty() (*os.File, *os.File, error) {
+	return nil, nil, errors.New("Unsupported")
+}

pkg/exprparser/functions.go

@@ -6,12 +6,14 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"reflect"
 	"strconv"
 	"strings"
 
+	"github.com/go-git/go-git/v5/plumbing/format/gitignore"
 	"github.com/nektos/act/pkg/model"
 	"github.com/rhysd/actionlint"
 )
@@ -178,25 +180,37 @@ func (impl *interperterImpl) fromJSON(value reflect.Value) (interface{}, error)
 }
 
 func (impl *interperterImpl) hashFiles(paths ...reflect.Value) (string, error) {
-	var filepaths []string
+	var ps []gitignore.Pattern
 
+	const cwdPrefix = "." + string(filepath.Separator)
+	const excludeCwdPrefix = "!" + cwdPrefix
 	for _, path := range paths {
 		if path.Kind() == reflect.String {
-			filepaths = append(filepaths, path.String())
+			cleanPath := path.String()
+			if strings.HasPrefix(cleanPath, cwdPrefix) {
+				cleanPath = cleanPath[len(cwdPrefix):]
+			} else if strings.HasPrefix(cleanPath, excludeCwdPrefix) {
+				cleanPath = "!" + cleanPath[len(excludeCwdPrefix):]
+			}
+			ps = append(ps, gitignore.ParsePattern(cleanPath, nil))
 		} else {
 			return "", fmt.Errorf("Non-string path passed to hashFiles")
 		}
 	}
 
+	matcher := gitignore.NewMatcher(ps)
+
 	var files []string
-
+	if err := filepath.Walk(impl.config.WorkingDir, func(path string, fi fs.FileInfo, err error) error {
-	for i := range filepaths {
+		sansPrefix := strings.TrimPrefix(path, impl.config.WorkingDir+string(filepath.Separator))
-		newFiles, err := filepath.Glob(filepath.Join(impl.config.WorkingDir, filepaths[i]))
+		parts := strings.Split(sansPrefix, string(filepath.Separator))
-		if err != nil {
+		if fi.IsDir() || !matcher.Match(parts, fi.IsDir()) {
-			return "", fmt.Errorf("Unable to glob.Glob: %v", err)
+			return nil
 		}
-
+		files = append(files, path)
-		files = append(files, newFiles...)
+		return nil
+	}); err != nil {
+		return "", fmt.Errorf("Unable to filepath.Walk: %v", err)
 	}
 
 	if len(files) == 0 {

pkg/exprparser/functions_test.go

@@ -188,7 +188,11 @@ func TestFunctionHashFiles(t *testing.T) {
 		{"hashFiles('**/non-extant-files') }}", "", "hash-non-existing-file"},
 		{"hashFiles('**/non-extant-files', '**/more-non-extant-files') }}", "", "hash-multiple-non-existing-files"},
 		{"hashFiles('./for-hashing-1.txt') }}", "66a045b452102c59d840ec097d59d9467e13a3f34f6494e539ffd32c1bb35f18", "hash-single-file"},
-		{"hashFiles('./for-hashing-*') }}", "8e5935e7e13368cd9688fe8f48a0955293676a021562582c7e848dafe13fb046", "hash-multiple-files"},
+		{"hashFiles('./for-hashing-*.txt') }}", "8e5935e7e13368cd9688fe8f48a0955293676a021562582c7e848dafe13fb046", "hash-multiple-files"},
+		{"hashFiles('./for-hashing-*.txt', '!./for-hashing-2.txt') }}", "66a045b452102c59d840ec097d59d9467e13a3f34f6494e539ffd32c1bb35f18", "hash-negative-pattern"},
+		{"hashFiles('./for-hashing-**') }}", "c418ba693753c84115ced0da77f876cddc662b9054f4b129b90f822597ee2f94", "hash-multiple-files-and-directories"},
+		{"hashFiles('./for-hashing-3/**') }}", "6f5696b546a7a9d6d42a449dc9a56bef244aaa826601ef27466168846139d2c2", "hash-nested-directories"},
+		{"hashFiles('./for-hashing-3/**/nested-data.txt') }}", "8ecadfb49f7f978d0a9f3a957e9c8da6cc9ab871f5203b5d9f9d1dc87d8af18c", "hash-nested-directories-2"},
 	}
 
 	env := &EvaluationEnvironment{}

pkg/exprparser/testdata/for-hashing-3/data.txt

@@ -0,0 +1 @@
+Knock knock!

pkg/exprparser/testdata/for-hashing-3/nested/nested-data.txt

@@ -0,0 +1 @@
+Anybody home?

pkg/lookpath/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+	* Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+	* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+	* Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

pkg/lookpath/env.go

@@ -0,0 +1,18 @@
+package lookpath
+
+import "os"
+
+type Env interface {
+	Getenv(name string) string
+}
+
+type defaultEnv struct {
+}
+
+func (*defaultEnv) Getenv(name string) string {
+	return os.Getenv(name)
+}
+
+func LookPath(file string) (string, error) {
+	return LookPath2(file, &defaultEnv{})
+}

pkg/lookpath/error.go

@@ -0,0 +1,10 @@
+package lookpath
+
+type Error struct {
+	Name string
+	Err  error
+}
+
+func (e *Error) Error() string {
+	return e.Err.Error()
+}

pkg/lookpath/lp_js.go

@@ -0,0 +1,23 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build js && wasm
+
+package lookpath
+
+import (
+	"errors"
+)
+
+// ErrNotFound is the error resulting if a path search failed to find an executable file.
+var ErrNotFound = errors.New("executable file not found in $PATH")
+
+// LookPath searches for an executable named file in the
+// directories named by the PATH environment variable.
+// If file contains a slash, it is tried directly and the PATH is not consulted.
+// The result may be an absolute path or a path relative to the current directory.
+func LookPath2(file string, lenv Env) (string, error) {
+	// Wasm can not execute processes, so act as if there are no executables at all.
+	return "", &Error{file, ErrNotFound}
+}

pkg/lookpath/lp_plan9.go

@@ -0,0 +1,56 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package lookpath
+
+import (
+	"errors"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// ErrNotFound is the error resulting if a path search failed to find an executable file.
+var ErrNotFound = errors.New("executable file not found in $path")
+
+func findExecutable(file string) error {
+	d, err := os.Stat(file)
+	if err != nil {
+		return err
+	}
+	if m := d.Mode(); !m.IsDir() && m&0111 != 0 {
+		return nil
+	}
+	return fs.ErrPermission
+}
+
+// LookPath searches for an executable named file in the
+// directories named by the path environment variable.
+// If file begins with "/", "#", "./", or "../", it is tried
+// directly and the path is not consulted.
+// The result may be an absolute path or a path relative to the current directory.
+func LookPath2(file string, lenv Env) (string, error) {
+	// skip the path lookup for these prefixes
+	skip := []string{"/", "#", "./", "../"}
+
+	for _, p := range skip {
+		if strings.HasPrefix(file, p) {
+			err := findExecutable(file)
+			if err == nil {
+				return file, nil
+			}
+			return "", &Error{file, err}
+		}
+	}
+
+	path := lenv.Getenv("path")
+	for _, dir := range filepath.SplitList(path) {
+		path := filepath.Join(dir, file)
+		if err := findExecutable(path); err == nil {
+			return path, nil
+		}
+	}
+	return "", &Error{file, ErrNotFound}
+}

pkg/lookpath/lp_unix.go

@@ -0,0 +1,59 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
+
+package lookpath
+
+import (
+	"errors"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// ErrNotFound is the error resulting if a path search failed to find an executable file.
+var ErrNotFound = errors.New("executable file not found in $PATH")
+
+func findExecutable(file string) error {
+	d, err := os.Stat(file)
+	if err != nil {
+		return err
+	}
+	if m := d.Mode(); !m.IsDir() && m&0111 != 0 {
+		return nil
+	}
+	return fs.ErrPermission
+}
+
+// LookPath searches for an executable named file in the
+// directories named by the PATH environment variable.
+// If file contains a slash, it is tried directly and the PATH is not consulted.
+// The result may be an absolute path or a path relative to the current directory.
+func LookPath2(file string, lenv Env) (string, error) {
+	// NOTE(rsc): I wish we could use the Plan 9 behavior here
+	// (only bypass the path if file begins with / or ./ or ../)
+	// but that would not match all the Unix shells.
+
+	if strings.Contains(file, "/") {
+		err := findExecutable(file)
+		if err == nil {
+			return file, nil
+		}
+		return "", &Error{file, err}
+	}
+	path := lenv.Getenv("PATH")
+	for _, dir := range filepath.SplitList(path) {
+		if dir == "" {
+			// Unix shell semantics: path element "" means "."
+			dir = "."
+		}
+		path := filepath.Join(dir, file)
+		if err := findExecutable(path); err == nil {
+			return path, nil
+		}
+	}
+	return "", &Error{file, ErrNotFound}
+}

pkg/lookpath/lp_windows.go

@@ -0,0 +1,94 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package lookpath
+
+import (
+	"errors"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// ErrNotFound is the error resulting if a path search failed to find an executable file.
+var ErrNotFound = errors.New("executable file not found in %PATH%")
+
+func chkStat(file string) error {
+	d, err := os.Stat(file)
+	if err != nil {
+		return err
+	}
+	if d.IsDir() {
+		return fs.ErrPermission
+	}
+	return nil
+}
+
+func hasExt(file string) bool {
+	i := strings.LastIndex(file, ".")
+	if i < 0 {
+		return false
+	}
+	return strings.LastIndexAny(file, `:\/`) < i
+}
+
+func findExecutable(file string, exts []string) (string, error) {
+	if len(exts) == 0 {
+		return file, chkStat(file)
+	}
+	if hasExt(file) {
+		if chkStat(file) == nil {
+			return file, nil
+		}
+	}
+	for _, e := range exts {
+		if f := file + e; chkStat(f) == nil {
+			return f, nil
+		}
+	}
+	return "", fs.ErrNotExist
+}
+
+// LookPath searches for an executable named file in the
+// directories named by the PATH environment variable.
+// If file contains a slash, it is tried directly and the PATH is not consulted.
+// LookPath also uses PATHEXT environment variable to match
+// a suitable candidate.
+// The result may be an absolute path or a path relative to the current directory.
+func LookPath2(file string, lenv Env) (string, error) {
+	var exts []string
+	x := lenv.Getenv(`PATHEXT`)
+	if x != "" {
+		for _, e := range strings.Split(strings.ToLower(x), `;`) {
+			if e == "" {
+				continue
+			}
+			if e[0] != '.' {
+				e = "." + e
+			}
+			exts = append(exts, e)
+		}
+	} else {
+		exts = []string{".com", ".exe", ".bat", ".cmd"}
+	}
+
+	if strings.ContainsAny(file, `:\/`) {
+		if f, err := findExecutable(file, exts); err == nil {
+			return f, nil
+		} else {
+			return "", &Error{file, err}
+		}
+	}
+	if f, err := findExecutable(filepath.Join(".", file), exts); err == nil {
+		return f, nil
+	}
+	path := lenv.Getenv("path")
+	for _, dir := range filepath.SplitList(path) {
+		if f, err := findExecutable(filepath.Join(dir, file), exts); err == nil {
+			return f, nil
+		}
+	}
+	return "", &Error{file, ErrNotFound}
+}

pkg/model/workflow.go

@@ -380,6 +380,42 @@ func commonKeysMatch2(a map[string]interface{}, b map[string]interface{}, m map[
 	return true
 }
 
+// JobType describes what type of job we are about to run
+type JobType int
+
+const (
+	// StepTypeRun is all steps that have a `run` attribute
+	JobTypeDefault JobType = iota
+
+	// StepTypeReusableWorkflowLocal is all steps that have a `uses` that is a local workflow in the .github/workflows directory
+	JobTypeReusableWorkflowLocal
+
+	// JobTypeReusableWorkflowRemote is all steps that have a `uses` that references a workflow file in a github repo
+	JobTypeReusableWorkflowRemote
+)
+
+func (j JobType) String() string {
+	switch j {
+	case JobTypeDefault:
+		return "default"
+	case JobTypeReusableWorkflowLocal:
+		return "local-reusable-workflow"
+	case JobTypeReusableWorkflowRemote:
+		return "remote-reusable-workflow"
+	}
+	return "unknown"
+}
+
+// Type returns the type of the job
+func (j *Job) Type() JobType {
+	if strings.HasPrefix(j.Uses, "./.github/workflows") && (strings.HasSuffix(j.Uses, ".yml") || strings.HasSuffix(j.Uses, ".yaml")) {
+		return JobTypeReusableWorkflowLocal
+	} else if !strings.HasPrefix(j.Uses, "./") && strings.Contains(j.Uses, ".github/workflows") && (strings.Contains(j.Uses, ".yml@") || strings.Contains(j.Uses, ".yaml@")) {
+		return JobTypeReusableWorkflowRemote
+	}
+	return JobTypeDefault
+}
+
 // ContainerSpec is the specification of the container to use for the job
 type ContainerSpec struct {
 	Image       string            `yaml:"image"`
@@ -460,7 +496,7 @@ func (s *Step) ShellCommand() string {
 	case "python":
 		shellCommand = "python {0}"
 	case "sh":
-		shellCommand = "sh -e -c {0}"
+		shellCommand = "sh -e {0}"
 	case "cmd":
 		shellCommand = "%ComSpec% /D /E:ON /V:OFF /S /C \"CALL \"{0}\"\""
 	case "powershell":
@@ -487,6 +523,12 @@ const (
 	// StepTypeUsesActionRemote is all steps that have a `uses` that is a reference to a github repo
 	StepTypeUsesActionRemote
 
+	// StepTypeReusableWorkflowLocal is all steps that have a `uses` that is a local workflow in the .github/workflows directory
+	StepTypeReusableWorkflowLocal
+
+	// StepTypeReusableWorkflowRemote is all steps that have a `uses` that references a workflow file in a github repo
+	StepTypeReusableWorkflowRemote
+
 	// StepTypeInvalid is for steps that have invalid step action
 	StepTypeInvalid
 )
@@ -503,6 +545,10 @@ func (s StepType) String() string {
 		return "remote-action"
 	case StepTypeUsesDockerURL:
 		return "docker"
+	case StepTypeReusableWorkflowLocal:
+		return "local-reusable-workflow"
+	case StepTypeReusableWorkflowRemote:
+		return "remote-reusable-workflow"
 	}
 	return "unknown"
 }
@@ -520,6 +566,10 @@ func (s *Step) Type() StepType {
 		return StepTypeRun
 	} else if strings.HasPrefix(s.Uses, "docker://") {
 		return StepTypeUsesDockerURL
+	} else if strings.HasPrefix(s.Uses, "./.github/workflows") && (strings.HasSuffix(s.Uses, ".yml") || strings.HasSuffix(s.Uses, ".yaml")) {
+		return StepTypeReusableWorkflowLocal
+	} else if !strings.HasPrefix(s.Uses, "./") && strings.Contains(s.Uses, ".github/workflows") && (strings.Contains(s.Uses, ".yml@") || strings.Contains(s.Uses, ".yaml@")) {
+		return StepTypeReusableWorkflowRemote
 	} else if strings.HasPrefix(s.Uses, "./") {
 		return StepTypeUsesActionLocal
 	}

pkg/model/workflow_test.go

@@ -138,6 +138,31 @@ jobs:
 	})
 }
 
+func TestReadWorkflow_JobTypes(t *testing.T) {
+	yaml := `
+name: invalid job definition
+
+jobs:
+  default-job:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo
+  remote-reusable-workflow:
+    runs-on: ubuntu-latest
+    uses: remote/repo/.github/workflows/workflow.yml@main
+  local-reusable-workflow:
+    runs-on: ubuntu-latest
+    uses: ./.github/workflows/workflow.yml
+`
+
+	workflow, err := ReadWorkflow(strings.NewReader(yaml))
+	assert.NoError(t, err, "read workflow should succeed")
+	assert.Len(t, workflow.Jobs, 3)
+	assert.Equal(t, workflow.Jobs["default-job"].Type(), JobTypeDefault)
+	assert.Equal(t, workflow.Jobs["remote-reusable-workflow"].Type(), JobTypeReusableWorkflowRemote)
+	assert.Equal(t, workflow.Jobs["local-reusable-workflow"].Type(), JobTypeReusableWorkflowLocal)
+}
+
 func TestReadWorkflow_StepsTypes(t *testing.T) {
 	yaml := `
 name: invalid step definition

pkg/runner/action.go

@@ -352,7 +352,7 @@ func newStepContainer(ctx context.Context, step step, image string, cmd []string
 	stepContainer := container.NewContainer(&container.NewContainerInput{
 		Cmd:         cmd,
 		Entrypoint:  entrypoint,
-		WorkingDir:  rc.Config.ContainerWorkdir(),
+		WorkingDir:  rc.JobContainer.ToContainerPath(rc.Config.Workdir),
 		Image:       image,
 		Username:    rc.Config.Secrets["DOCKER_USERNAME"],
 		Password:    rc.Config.Secrets["DOCKER_PASSWORD"],
@@ -397,11 +397,11 @@ func getContainerActionPaths(step *model.Step, actionDir string, rc *RunContext)
 	containerActionDir := "."
 	if step.Type() != model.StepTypeUsesActionRemote {
 		actionName = getOsSafeRelativePath(actionDir, rc.Config.Workdir)
-		containerActionDir = rc.Config.ContainerWorkdir() + "/" + actionName
+		containerActionDir = rc.JobContainer.ToContainerPath(rc.Config.Workdir) + "/" + actionName
 		actionName = "./" + actionName
 	} else if step.Type() == model.StepTypeUsesActionRemote {
 		actionName = getOsSafeRelativePath(actionDir, rc.ActionCacheDir())
-		containerActionDir = ActPath + "/actions/" + actionName
+		containerActionDir = rc.JobContainer.GetActPath() + "/actions/" + actionName
 	}
 
 	if actionName == "" {

pkg/runner/action_composite.go

@@ -69,7 +69,9 @@ func newCompositeRunContext(ctx context.Context, parent *RunContext, step action
 		Masks:        parent.Masks,
 		ExtraPath:    parent.ExtraPath,
 		Parent:       parent,
+		EventJSON:    parent.EventJSON,
 	}
+	compositerc.ExprEval = compositerc.NewExpressionEvaluator(ctx)
 
 	return compositerc
 }

pkg/runner/container_mock_test.go

@@ -11,6 +11,7 @@ import (
 type containerMock struct {
 	mock.Mock
 	container.Container
+	container.LinuxContainerEnvironmentExtensions
 }
 
 func (cm *containerMock) Create(capAdd []string, capDrop []string) common.Executor {

pkg/runner/expression.go

@@ -7,7 +7,6 @@ import (
 	"strings"
 
 	"github.com/nektos/act/pkg/common"
-	"github.com/nektos/act/pkg/container"
 	"github.com/nektos/act/pkg/exprparser"
 	"github.com/nektos/act/pkg/model"
 	"gopkg.in/yaml.v3"
@@ -23,20 +22,22 @@ type ExpressionEvaluator interface {
 // NewExpressionEvaluator creates a new evaluator
 func (rc *RunContext) NewExpressionEvaluator(ctx context.Context) ExpressionEvaluator {
 	// todo: cleanup EvaluationEnvironment creation
-	job := rc.Run.Job()
-	strategy := make(map[string]interface{})
-	if job.Strategy != nil {
-		strategy["fail-fast"] = job.Strategy.FailFast
-		strategy["max-parallel"] = job.Strategy.MaxParallel
-	}
-
-	jobs := rc.Run.Workflow.Jobs
-	jobNeeds := rc.Run.Job().Needs()
-
 	using := make(map[string]map[string]map[string]string)
-	for _, needs := range jobNeeds {
+	strategy := make(map[string]interface{})
-		using[needs] = map[string]map[string]string{
+	if rc.Run != nil {
-			"outputs": jobs[needs].Outputs,
+		job := rc.Run.Job()
+		if job != nil && job.Strategy != nil {
+			strategy["fail-fast"] = job.Strategy.FailFast
+			strategy["max-parallel"] = job.Strategy.MaxParallel
+		}
+
+		jobs := rc.Run.Workflow.Jobs
+		jobNeeds := rc.Run.Job().Needs()
+
+		for _, needs := range jobNeeds {
+			using[needs] = map[string]map[string]string{
+				"outputs": jobs[needs].Outputs,
+			}
 		}
 	}
 
@@ -49,19 +50,16 @@ func (rc *RunContext) NewExpressionEvaluator(ctx context.Context) ExpressionEval
 		Job:    rc.getJobContext(),
 		// todo: should be unavailable
 		// but required to interpolate/evaluate the step outputs on the job
-		Steps: rc.getStepsContext(),
+		Steps:    rc.getStepsContext(),
-		Runner: map[string]interface{}{
-			"os":         "Linux",
-			"arch":       container.RunnerArch(ctx),
-			"temp":       "/tmp",
-			"tool_cache": "/opt/hostedtoolcache",
-		},
 		Secrets:  rc.Config.Secrets,
 		Strategy: strategy,
 		Matrix:   rc.Matrix,
 		Needs:    using,
 		Inputs:   inputs,
 	}
+	if rc.JobContainer != nil {
+		ee.Runner = rc.JobContainer.GetRunnerContext(ctx)
+	}
 	return expressionEvaluator{
 		interpreter: exprparser.NewInterpeter(ee, exprparser.Config{
 			Run:        rc.Run,
@@ -95,16 +93,10 @@ func (rc *RunContext) NewStepExpressionEvaluator(ctx context.Context, step step)
 	inputs := getEvaluatorInputs(ctx, rc, step, ghc)
 
 	ee := &exprparser.EvaluationEnvironment{
-		Github: step.getGithubContext(ctx),
+		Github:   step.getGithubContext(ctx),
-		Env:    *step.getEnv(),
+		Env:      *step.getEnv(),
-		Job:    rc.getJobContext(),
+		Job:      rc.getJobContext(),
-		Steps:  rc.getStepsContext(),
+		Steps:    rc.getStepsContext(),
-		Runner: map[string]interface{}{
-			"os":         "Linux",
-			"arch":       container.RunnerArch(ctx),
-			"temp":       "/tmp",
-			"tool_cache": "/opt/hostedtoolcache",
-		},
 		Secrets:  rc.Config.Secrets,
 		Strategy: strategy,
 		Matrix:   rc.Matrix,
@@ -113,6 +105,9 @@ func (rc *RunContext) NewStepExpressionEvaluator(ctx context.Context, step step)
 		// but required to interpolate/evaluate the inputs in actions/composite
 		Inputs: inputs,
 	}
+	if rc.JobContainer != nil {
+		ee.Runner = rc.JobContainer.GetRunnerContext(ctx)
+	}
 	return expressionEvaluator{
 		interpreter: exprparser.NewInterpeter(ee, exprparser.Config{
 			Run:        rc.Run,
@@ -331,15 +326,17 @@ func getEvaluatorInputs(ctx context.Context, rc *RunContext, step step, ghc *mod
 
 	if ghc.EventName == "workflow_dispatch" {
 		config := rc.Run.Workflow.WorkflowDispatchConfig()
-		for k, v := range config.Inputs {
+		if config != nil && config.Inputs != nil {
-			value := nestedMapLookup(ghc.Event, "inputs", k)
+			for k, v := range config.Inputs {
-			if value == nil {
+				value := nestedMapLookup(ghc.Event, "inputs", k)
-				value = v.Default
+				if value == nil {
-			}
+					value = v.Default
-			if v.Type == "boolean" {
+				}
-				inputs[k] = value == "true"
+				if v.Type == "boolean" {
-			} else {
+					inputs[k] = value == "true"
-				inputs[k] = value
+				} else {
+					inputs[k] = value
+				}
 			}
 		}
 	}

pkg/runner/expression_test.go

@@ -117,7 +117,6 @@ func TestEvaluateRunContext(t *testing.T) {
 		{"github.run_id", "1", ""},
 		{"github.run_number", "1", ""},
 		{"job.status", "success", ""},
-		{"runner.os", "Linux", ""},
 		{"matrix.os", "Linux", ""},
 		{"matrix.foo", "bar", ""},
 		{"env.key", "value", ""},

pkg/runner/job_executor.go

@@ -38,6 +38,20 @@ func newJobExecutor(info jobInfo, sf stepFactory, rc *RunContext) common.Executo
 		return common.NewDebugExecutor("No steps found")
 	}
 
+	preSteps = append(preSteps, func(ctx context.Context) error {
+		// Have to be skipped for some Tests
+		if rc.Run == nil {
+			return nil
+		}
+		rc.ExprEval = rc.NewExpressionEvaluator(ctx)
+		// evaluate environment variables since they can contain
+		// GitHub's special environment variables.
+		for k, v := range rc.GetEnv() {
+			rc.Env[k] = rc.ExprEval.Interpolate(ctx, v)
+		}
+		return nil
+	})
+
 	for i, stepModel := range infoSteps {
 		stepModel := stepModel
 		if stepModel == nil {
@@ -120,7 +134,7 @@ func newJobExecutor(info jobInfo, sf stepFactory, rc *RunContext) common.Executo
 
 func useStepLogger(rc *RunContext, stepModel *model.Step, stage stepStage, executor common.Executor) common.Executor {
 	return func(ctx context.Context) error {
-		ctx = withStepLogger(ctx, stepModel.Number, stepModel.ID, stepModel.String(), stage.String())
+		ctx = withStepLogger(ctx, stepModel.Number, stepModel.ID, rc.ExprEval.Interpolate(ctx, stepModel.String()), stage.String())
 
 		rawLogger := common.Logger(ctx).WithField("raw_output", true)
 		logWriter := common.NewLineWriter(rc.commandHandler(ctx), func(s string) bool {

pkg/runner/job_executor_test.go

@@ -79,6 +79,7 @@ func (jim *jobInfoMock) result(result string) {
 
 type jobContainerMock struct {
 	container.Container
+	container.LinuxContainerEnvironmentExtensions
 }
 
 func (jcm *jobContainerMock) ReplaceLogWriter(stdout, stderr io.Writer) (io.Writer, io.Writer) {
@@ -248,7 +249,17 @@ func TestNewJobExecutor(t *testing.T) {
 			sfm := &stepFactoryMock{}
 			rc := &RunContext{
 				JobContainer: &jobContainerMock{},
+				Run: &model.Run{
+					JobID: "test",
+					Workflow: &model.Workflow{
+						Jobs: map[string]*model.Job{
+							"test": {},
+						},
+					},
+				},
+				Config: &Config{},
 			}
+			rc.ExprEval = rc.NewExpressionEvaluator(ctx)
 			executorOrder := make([]string, 0)
 
 			jim.On("steps").Return(tt.steps)

pkg/runner/run_context.go

@@ -2,7 +2,10 @@ package runner
 
 import (
 	"context"
+	"crypto/rand"
+	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -22,26 +25,25 @@ import (
 	"github.com/nektos/act/pkg/model"
 )
 
-const ActPath string = "/var/run/act"
-
 // RunContext contains info about current job
 type RunContext struct {
-	Name           string
+	Name                string
-	Config         *Config
+	Config              *Config
-	Matrix         map[string]interface{}
+	Matrix              map[string]interface{}
-	Run            *model.Run
+	Run                 *model.Run
-	EventJSON      string
+	EventJSON           string
-	Env            map[string]string
+	Env                 map[string]string
-	ExtraPath      []string
+	ExtraPath           []string
-	CurrentStep    string
+	CurrentStep         string
-	StepResults    map[string]*model.StepResult
+	StepResults         map[string]*model.StepResult
-	ExprEval       ExpressionEvaluator
+	ExprEval            ExpressionEvaluator
-	JobContainer   container.Container
+	JobContainer        container.ExecutionsEnvironment
-	OutputMappings map[MappableOutput]MappableOutput
+	OutputMappings      map[MappableOutput]MappableOutput
-	JobName        string
+	JobName             string
-	ActionPath     string
+	ActionPath          string
-	Parent         *RunContext
+	Parent              *RunContext
-	Masks          []string
+	Masks               []string
+	cleanUpJobContainer common.Executor
 }
 
 func (rc *RunContext) AddMask(mask string) {
@@ -60,7 +62,13 @@ func (rc *RunContext) String() string {
 // GetEnv returns the env for the context
 func (rc *RunContext) GetEnv() map[string]string {
 	if rc.Env == nil {
-		rc.Env = mergeMaps(rc.Run.Workflow.Env, rc.Run.Job().Environment(), rc.Config.Env)
+		rc.Env = map[string]string{}
+		if rc.Run != nil && rc.Run.Workflow != nil && rc.Config != nil {
+			job := rc.Run.Job()
+			if job != nil {
+				rc.Env = mergeMaps(rc.Run.Workflow.Env, job.Environment(), rc.Config.Env)
+			}
+		}
 	}
 	rc.Env["ACT"] = "true"
 	return rc.Env
@@ -82,9 +90,11 @@ func (rc *RunContext) GetBindsAndMounts() ([]string, map[string]string) {
 		fmt.Sprintf("%s:%s", rc.Config.ContainerDaemonSocket, "/var/run/docker.sock"),
 	}
 
+	ext := container.LinuxContainerEnvironmentExtensions{}
+
 	mounts := map[string]string{
 		"act-toolcache": "/toolcache",
-		name + "-env":   ActPath,
+		name + "-env":   ext.GetActPath(),
 	}
 
 	if job := rc.Run.Job(); job != nil {
@@ -110,14 +120,84 @@ func (rc *RunContext) GetBindsAndMounts() ([]string, map[string]string) {
 		if selinux.GetEnabled() {
 			bindModifiers = ":z"
 		}
-		binds = append(binds, fmt.Sprintf("%s:%s%s", rc.Config.Workdir, rc.Config.ContainerWorkdir(), bindModifiers))
+		binds = append(binds, fmt.Sprintf("%s:%s%s", rc.Config.Workdir, ext.ToContainerPath(rc.Config.Workdir), bindModifiers))
 	} else {
-		mounts[name] = rc.Config.ContainerWorkdir()
+		mounts[name] = ext.ToContainerPath(rc.Config.Workdir)
 	}
 
 	return binds, mounts
 }
 
+func (rc *RunContext) startHostEnvironment() common.Executor {
+	return func(ctx context.Context) error {
+		logger := common.Logger(ctx)
+		rawLogger := logger.WithField("raw_output", true)
+		logWriter := common.NewLineWriter(rc.commandHandler(ctx), func(s string) bool {
+			if rc.Config.LogOutput {
+				rawLogger.Infof("%s", s)
+			} else {
+				rawLogger.Debugf("%s", s)
+			}
+			return true
+		})
+		cacheDir := rc.ActionCacheDir()
+		randBytes := make([]byte, 8)
+		_, _ = rand.Read(randBytes)
+		miscpath := filepath.Join(cacheDir, hex.EncodeToString(randBytes))
+		actPath := filepath.Join(miscpath, "act")
+		if err := os.MkdirAll(actPath, 0777); err != nil {
+			return err
+		}
+		path := filepath.Join(miscpath, "hostexecutor")
+		if err := os.MkdirAll(path, 0777); err != nil {
+			return err
+		}
+		runnerTmp := filepath.Join(miscpath, "tmp")
+		if err := os.MkdirAll(runnerTmp, 0777); err != nil {
+			return err
+		}
+		toolCache := filepath.Join(cacheDir, "tool_cache")
+		rc.JobContainer = &container.HostEnvironment{
+			Path:      path,
+			TmpDir:    runnerTmp,
+			ToolCache: toolCache,
+			Workdir:   rc.Config.Workdir,
+			ActPath:   actPath,
+			CleanUp: func() {
+				os.RemoveAll(miscpath)
+			},
+			StdOut: logWriter,
+		}
+		rc.cleanUpJobContainer = rc.JobContainer.Remove()
+		rc.Env["RUNNER_TOOL_CACHE"] = toolCache
+		rc.Env["RUNNER_OS"] = runtime.GOOS
+		rc.Env["RUNNER_ARCH"] = runtime.GOARCH
+		rc.Env["RUNNER_TEMP"] = runnerTmp
+		for _, env := range os.Environ() {
+			i := strings.Index(env, "=")
+			if i > 0 {
+				rc.Env[env[0:i]] = env[i+1:]
+			}
+		}
+
+		return common.NewPipelineExecutor(
+			rc.JobContainer.Copy(rc.JobContainer.GetActPath()+"/", &container.FileEntry{
+				Name: "workflow/event.json",
+				Mode: 0644,
+				Body: rc.EventJSON,
+			}, &container.FileEntry{
+				Name: "workflow/envs.txt",
+				Mode: 0666,
+				Body: "",
+			}, &container.FileEntry{
+				Name: "workflow/paths.txt",
+				Mode: 0666,
+				Body: "",
+			}),
+		)(ctx)
+	}
+}
+
 func (rc *RunContext) startJobContainer() common.Executor {
 	return func(ctx context.Context) error {
 		logger := common.Logger(ctx)
@@ -147,12 +227,22 @@ func (rc *RunContext) startJobContainer() common.Executor {
 		envList = append(envList, fmt.Sprintf("%s=%s", "RUNNER_ARCH", container.RunnerArch(ctx)))
 		envList = append(envList, fmt.Sprintf("%s=%s", "RUNNER_TEMP", "/tmp"))
 
+		ext := container.LinuxContainerEnvironmentExtensions{}
 		binds, mounts := rc.GetBindsAndMounts()
 
+		rc.cleanUpJobContainer = func(ctx context.Context) error {
+			if rc.JobContainer != nil && !rc.Config.ReuseContainers {
+				return rc.JobContainer.Remove().
+					Then(container.NewDockerVolumeRemoveExecutor(rc.jobContainerName(), false)).
+					Then(container.NewDockerVolumeRemoveExecutor(rc.jobContainerName()+"-env", false))(ctx)
+			}
+			return nil
+		}
+
 		rc.JobContainer = container.NewContainer(&container.NewContainerInput{
 			Cmd:         nil,
 			Entrypoint:  []string{"/bin/sleep", fmt.Sprint(rc.Config.ContainerMaxLifetime.Round(time.Second).Seconds())},
-			WorkingDir:  rc.Config.ContainerWorkdir(),
+			WorkingDir:  ext.ToContainerPath(rc.Config.Workdir),
 			Image:       image,
 			Username:    username,
 			Password:    password,
@@ -169,6 +259,9 @@ func (rc *RunContext) startJobContainer() common.Executor {
 			Options:     rc.options(ctx),
 			AutoRemove:  rc.Config.AutoRemove,
 		})
+		if rc.JobContainer == nil {
+			return errors.New("Failed to create job container")
+		}
 
 		return common.NewPipelineExecutor(
 			rc.JobContainer.Pull(rc.Config.ForcePull),
@@ -177,17 +270,17 @@ func (rc *RunContext) startJobContainer() common.Executor {
 			rc.JobContainer.Start(false),
 			rc.JobContainer.UpdateFromImageEnv(&rc.Env),
 			rc.JobContainer.UpdateFromEnv("/etc/environment", &rc.Env),
-			rc.JobContainer.Copy(ActPath+"/", &container.FileEntry{
+			rc.JobContainer.Copy(rc.JobContainer.GetActPath()+"/", &container.FileEntry{
 				Name: "workflow/event.json",
-				Mode: 0o644,
+				Mode: 0644,
 				Body: rc.EventJSON,
 			}, &container.FileEntry{
 				Name: "workflow/envs.txt",
-				Mode: 0o666,
+				Mode: 0666,
 				Body: "",
 			}, &container.FileEntry{
 				Name: "workflow/paths.txt",
-				Mode: 0o666,
+				Mode: 0666,
 				Body: "",
 			}),
 		)(ctx)
@@ -203,10 +296,8 @@ func (rc *RunContext) execJobContainer(cmd []string, env map[string]string, user
 // stopJobContainer removes the job container (if it exists) and its volume (if it exists) if !rc.Config.ReuseContainers
 func (rc *RunContext) stopJobContainer() common.Executor {
 	return func(ctx context.Context) error {
-		if rc.JobContainer != nil && !rc.Config.ReuseContainers {
+		if rc.cleanUpJobContainer != nil && !rc.Config.ReuseContainers {
-			return rc.JobContainer.Remove().
+			return rc.cleanUpJobContainer(ctx)
-				Then(container.NewDockerVolumeRemoveExecutor(rc.jobContainerName(), false)).
-				Then(container.NewDockerVolumeRemoveExecutor(rc.jobContainerName()+"-env", false))(ctx)
 		}
 		return nil
 	}
@@ -243,7 +334,13 @@ func (rc *RunContext) interpolateOutputs() common.Executor {
 }
 
 func (rc *RunContext) startContainer() common.Executor {
-	return rc.startJobContainer()
+	return func(ctx context.Context) error {
+		image := rc.platformImage(ctx)
+		if strings.EqualFold(image, "-self-hosted") {
+			return rc.startHostEnvironment()(ctx)
+		}
+		return rc.startJobContainer()(ctx)
+	}
 }
 
 func (rc *RunContext) stopContainer() common.Executor {
@@ -438,13 +535,11 @@ func (rc *RunContext) getGithubContext(ctx context.Context) *model.GithubContext
 	logger := common.Logger(ctx)
 	ghc := &model.GithubContext{
 		Event:            make(map[string]interface{}),
-		EventPath:        ActPath + "/workflow/event.json",
 		Workflow:         rc.Run.Workflow.Name,
 		RunID:            rc.Config.Env["GITHUB_RUN_ID"],
 		RunNumber:        rc.Config.Env["GITHUB_RUN_NUMBER"],
 		Actor:            rc.Config.Actor,
 		EventName:        rc.Config.EventName,
-		Workspace:        rc.Config.ContainerWorkdir(),
 		Action:           rc.CurrentStep,
 		Token:            rc.Config.Token,
 		ActionPath:       rc.ActionPath,
@@ -453,6 +548,10 @@ func (rc *RunContext) getGithubContext(ctx context.Context) *model.GithubContext
 		RunnerPerflog:    rc.Config.Env["RUNNER_PERFLOG"],
 		RunnerTrackingID: rc.Config.Env["RUNNER_TRACKING_ID"],
 	}
+	if rc.JobContainer != nil {
+		ghc.EventPath = rc.JobContainer.GetActPath() + "/workflow/event.json"
+		ghc.Workspace = rc.JobContainer.ToContainerPath(rc.Config.Workdir)
+	}
 
 	if ghc.RunID == "" {
 		ghc.RunID = "1"
@@ -586,8 +685,8 @@ func nestedMapLookup(m map[string]interface{}, ks ...string) (rval interface{})
 
 func (rc *RunContext) withGithubEnv(ctx context.Context, github *model.GithubContext, env map[string]string) map[string]string {
 	env["CI"] = "true"
-	env["GITHUB_ENV"] = ActPath + "/workflow/envs.txt"
+	env["GITHUB_ENV"] = rc.JobContainer.GetActPath() + "/workflow/envs.txt"
-	env["GITHUB_PATH"] = ActPath + "/workflow/paths.txt"
+	env["GITHUB_PATH"] = rc.JobContainer.GetActPath() + "/workflow/paths.txt"
 	env["GITHUB_WORKFLOW"] = github.Workflow
 	env["GITHUB_RUN_ID"] = github.RunID
 	env["GITHUB_RUN_NUMBER"] = github.RunNumber

pkg/runner/run_context_test.go

@@ -385,14 +385,12 @@ func TestGetGitHubContext(t *testing.T) {
 	}
 
 	assert.Equal(t, ghc.RunID, "1")
-	assert.Equal(t, ghc.Workspace, rc.Config.containerPath(cwd))
 	assert.Equal(t, ghc.RunNumber, "1")
 	assert.Equal(t, ghc.RetentionDays, "0")
 	assert.Equal(t, ghc.Actor, actor)
 	assert.Equal(t, ghc.Repository, repo)
 	assert.Equal(t, ghc.RepositoryOwner, owner)
 	assert.Equal(t, ghc.RunnerPerflog, "/dev/null")
-	assert.Equal(t, ghc.EventPath, ActPath+"/workflow/event.json")
 	assert.Equal(t, ghc.Token, rc.Config.Secrets["GITHUB_TOKEN"])
 }
 

pkg/runner/runner.go

@@ -4,10 +4,6 @@ import (
 	"context"
 	"fmt"
 	"os"
-	"path/filepath"
-	"regexp"
-	"runtime"
-	"strings"
 	"time"
 
 	log "github.com/sirupsen/logrus"
@@ -65,46 +61,6 @@ type Config struct {
 	PlatformPicker        func(labels []string) string // platform picker, it will take precedence over Platforms if isn't nil
 }
 
-// Resolves the equivalent host path inside the container
-// This is required for windows and WSL 2 to translate things like C:\Users\Myproject to /mnt/users/Myproject
-// For use in docker volumes and binds
-func (config *Config) containerPath(path string) string {
-	if runtime.GOOS == "windows" && strings.Contains(path, "/") {
-		log.Error("You cannot specify linux style local paths (/mnt/etc) on Windows as it does not understand them.")
-		return ""
-	}
-
-	abspath, err := filepath.Abs(path)
-	if err != nil {
-		log.Error(err)
-		return ""
-	}
-
-	// Test if the path is a windows path
-	windowsPathRegex := regexp.MustCompile(`^([a-zA-Z]):\\(.+)$`)
-	windowsPathComponents := windowsPathRegex.FindStringSubmatch(abspath)
-
-	// Return as-is if no match
-	if windowsPathComponents == nil {
-		return abspath
-	}
-
-	// Convert to WSL2-compatible path if it is a windows path
-	// NOTE: Cannot use filepath because it will use the wrong path separators assuming we want the path to be windows
-	// based if running on Windows, and because we are feeding this to Docker, GoLang auto-path-translate doesn't work.
-	driveLetter := strings.ToLower(windowsPathComponents[1])
-	translatedPath := strings.ReplaceAll(windowsPathComponents[2], `\`, `/`)
-	// Should make something like /mnt/c/Users/person/My Folder/MyActProject
-	result := strings.Join([]string{"/mnt", driveLetter, translatedPath}, `/`)
-	return result
-}
-
-// Resolves the equivalent host path inside the container
-// This is required for windows and WSL 2 to translate things like C:\Users\Myproject to /mnt/users/Myproject
-func (config *Config) ContainerWorkdir() string {
-	return config.containerPath(config.Workdir)
-}
-
 type runnerImpl struct {
 	config    *Config
 	eventJSON string
@@ -173,11 +129,6 @@ func (runner *runnerImpl) NewPlanExecutor(plan *model.Plan) common.Executor {
 					if len(matrixes) > 1 {
 						rc.Name = fmt.Sprintf("%s-%d", rc.Name, i+1)
 					}
-					// evaluate environment variables since they can contain
-					// GitHub's special environment variables.
-					for k, v := range rc.GetEnv() {
-						rc.Env[k] = rc.ExprEval.Interpolate(ctx, v)
-					}
 					if len(rc.String()) > maxJobNameLen {
 						maxJobNameLen = len(rc.String())
 					}

pkg/runner/runner_test.go

@@ -183,6 +183,9 @@ func TestRunEvent(t *testing.T) {
 		{workdir, "evalenv", "push", "", platforms},
 		{workdir, "ensure-post-steps", "push", "Job 'second-post-step-should-fail' failed", platforms},
 		{workdir, "workflow_dispatch", "workflow_dispatch", "", platforms},
+		{workdir, "workflow_dispatch_no_inputs_mapping", "workflow_dispatch", "", platforms},
+		{workdir, "workflow_dispatch-scalar", "workflow_dispatch", "", platforms},
+		{workdir, "workflow_dispatch-scalar-composite-action", "workflow_dispatch", "", platforms},
 		{"../model/testdata", "strategy", "push", "", platforms}, // TODO: move all testdata into pkg so we can validate it with planner and runner
 		// {"testdata", "issue-228", "push", "", platforms, }, // TODO [igni]: Remove this once everything passes
 		{"../model/testdata", "container-volumes", "push", "", platforms},
@@ -202,6 +205,95 @@ func TestRunEvent(t *testing.T) {
 	}
 }
 
+func TestRunEventHostEnvironment(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test")
+	}
+
+	ctx := context.Background()
+
+	tables := []TestJobFileInfo{}
+
+	if runtime.GOOS == "linux" {
+		platforms := map[string]string{
+			"ubuntu-latest": "-self-hosted",
+		}
+
+		tables = append(tables, []TestJobFileInfo{
+			// Shells
+			{workdir, "shells/defaults", "push", "", platforms},
+			{workdir, "shells/pwsh", "push", "", platforms},
+			{workdir, "shells/bash", "push", "", platforms},
+			{workdir, "shells/python", "push", "", platforms},
+			{workdir, "shells/sh", "push", "", platforms},
+
+			// Local action
+			{workdir, "local-action-js", "push", "", platforms},
+
+			// Uses
+			{workdir, "uses-composite", "push", "", platforms},
+			{workdir, "uses-composite-with-error", "push", "Job 'failing-composite-action' failed", platforms},
+			{workdir, "uses-nested-composite", "push", "", platforms},
+			{workdir, "act-composite-env-test", "push", "", platforms},
+
+			// Eval
+			{workdir, "evalmatrix", "push", "", platforms},
+			{workdir, "evalmatrixneeds", "push", "", platforms},
+			{workdir, "evalmatrixneeds2", "push", "", platforms},
+			{workdir, "evalmatrix-merge-map", "push", "", platforms},
+			{workdir, "evalmatrix-merge-array", "push", "", platforms},
+			{workdir, "issue-1195", "push", "", platforms},
+
+			{workdir, "fail", "push", "exit with `FAILURE`: 1", platforms},
+			{workdir, "runs-on", "push", "", platforms},
+			{workdir, "checkout", "push", "", platforms},
+			{workdir, "remote-action-js", "push", "", platforms},
+			{workdir, "matrix", "push", "", platforms},
+			{workdir, "matrix-include-exclude", "push", "", platforms},
+			{workdir, "commands", "push", "", platforms},
+			{workdir, "defaults-run", "push", "", platforms},
+			{workdir, "composite-fail-with-output", "push", "", platforms},
+			{workdir, "issue-597", "push", "", platforms},
+			{workdir, "issue-598", "push", "", platforms},
+			{workdir, "if-env-act", "push", "", platforms},
+			{workdir, "env-and-path", "push", "", platforms},
+			{workdir, "non-existent-action", "push", "Job 'nopanic' failed", platforms},
+			{workdir, "outputs", "push", "", platforms},
+			{workdir, "steps-context/conclusion", "push", "", platforms},
+			{workdir, "steps-context/outcome", "push", "", platforms},
+			{workdir, "job-status-check", "push", "job 'fail' failed", platforms},
+			{workdir, "if-expressions", "push", "Job 'mytest' failed", platforms},
+			{workdir, "uses-action-with-pre-and-post-step", "push", "", platforms},
+			{workdir, "evalenv", "push", "", platforms},
+			{workdir, "ensure-post-steps", "push", "Job 'second-post-step-should-fail' failed", platforms},
+		}...)
+	}
+	if runtime.GOOS == "windows" {
+		platforms := map[string]string{
+			"windows-latest": "-self-hosted",
+		}
+
+		tables = append(tables, []TestJobFileInfo{
+			{workdir, "windows-prepend-path", "push", "", platforms},
+			{workdir, "windows-add-env", "push", "", platforms},
+		}...)
+	} else {
+		platforms := map[string]string{
+			"self-hosted": "-self-hosted",
+		}
+
+		tables = append(tables, []TestJobFileInfo{
+			{workdir, "nix-prepend-path", "push", "", platforms},
+		}...)
+	}
+
+	for _, table := range tables {
+		t.Run(table.workflowPath, func(t *testing.T) {
+			table.runTest(ctx, t, &Config{})
+		})
+	}
+}
+
 func TestDryrunEvent(t *testing.T) {
 	if testing.Short() {
 		t.Skip("skipping integration test")
@@ -317,60 +409,3 @@ func TestRunEventPullRequest(t *testing.T) {
 
 	tjfi.runTest(context.Background(), t, &Config{EventPath: filepath.Join(workdir, workflowPath, "event.json")})
 }
-
-func TestContainerPath(t *testing.T) {
-	type containerPathJob struct {
-		destinationPath string
-		sourcePath      string
-		workDir         string
-	}
-
-	if runtime.GOOS == "windows" {
-		cwd, err := os.Getwd()
-		if err != nil {
-			log.Error(err)
-		}
-
-		rootDrive := os.Getenv("SystemDrive")
-		rootDriveLetter := strings.ReplaceAll(strings.ToLower(rootDrive), `:`, "")
-		for _, v := range []containerPathJob{
-			{"/mnt/c/Users/act/go/src/github.com/nektos/act", "C:\\Users\\act\\go\\src\\github.com\\nektos\\act\\", ""},
-			{"/mnt/f/work/dir", `F:\work\dir`, ""},
-			{"/mnt/c/windows/to/unix", "windows\\to\\unix", fmt.Sprintf("%s\\", rootDrive)},
-			{fmt.Sprintf("/mnt/%v/act", rootDriveLetter), "act", fmt.Sprintf("%s\\", rootDrive)},
-		} {
-			if v.workDir != "" {
-				if err := os.Chdir(v.workDir); err != nil {
-					log.Error(err)
-					t.Fail()
-				}
-			}
-
-			runnerConfig := &Config{
-				Workdir: v.sourcePath,
-			}
-
-			assert.Equal(t, v.destinationPath, runnerConfig.containerPath(runnerConfig.Workdir))
-		}
-
-		if err := os.Chdir(cwd); err != nil {
-			log.Error(err)
-		}
-	} else {
-		cwd, err := os.Getwd()
-		if err != nil {
-			log.Error(err)
-		}
-		for _, v := range []containerPathJob{
-			{"/home/act/go/src/github.com/nektos/act", "/home/act/go/src/github.com/nektos/act", ""},
-			{"/home/act", `/home/act/`, ""},
-			{cwd, ".", ""},
-		} {
-			runnerConfig := &Config{
-				Workdir: v.sourcePath,
-			}
-
-			assert.Equal(t, v.destinationPath, runnerConfig.containerPath(runnerConfig.Workdir))
-		}
-	}
-}

pkg/runner/step.go

@@ -3,9 +3,11 @@ package runner
 import (
 	"context"
 	"fmt"
+	"path"
 	"strings"
 
 	"github.com/nektos/act/pkg/common"
+	"github.com/nektos/act/pkg/container"
 	"github.com/nektos/act/pkg/exprparser"
 	"github.com/nektos/act/pkg/model"
 )
@@ -88,12 +90,26 @@ func runStepExecutor(step step, stage stepStage, executor common.Executor) commo
 			return nil
 		}
 
-		stepString := stepModel.String()
+		stepString := rc.ExprEval.Interpolate(ctx, stepModel.String())
 		if strings.Contains(stepString, "::add-mask::") {
 			stepString = "add-mask command"
 		}
 		logger.Infof("\u2B50 Run %s %s", stage, stepString)
 
+		// Prepare and clean Runner File Commands
+		actPath := rc.JobContainer.GetActPath()
+		outputFileCommand := path.Join("workflow", "outputcmd.txt")
+		stateFileCommand := path.Join("workflow", "statecmd.txt")
+		(*step.getEnv())["GITHUB_OUTPUT"] = path.Join(actPath, outputFileCommand)
+		(*step.getEnv())["GITHUB_STATE"] = path.Join(actPath, stateFileCommand)
+		_ = rc.JobContainer.Copy(actPath, &container.FileEntry{
+			Name: outputFileCommand,
+			Mode: 0666,
+		}, &container.FileEntry{
+			Name: stateFileCommand,
+			Mode: 0666,
+		})(ctx)
+
 		err = executor(ctx)
 
 		if err == nil {
@@ -117,6 +133,27 @@ func runStepExecutor(step step, stage stepStage, executor common.Executor) commo
 
 			logger.WithField("stepResult", rc.StepResults[rc.CurrentStep].Outcome).Errorf("  \u274C  Failure - %s %s", stage, stepString)
 		}
+		// Process Runner File Commands
+		orgerr := err
+		state := map[string]string{}
+		err = rc.JobContainer.UpdateFromEnv(path.Join(actPath, stateFileCommand), &state)(ctx)
+		if err != nil {
+			return err
+		}
+		for k, v := range state {
+			rc.saveState(ctx, map[string]string{"name": k}, v)
+		}
+		output := map[string]string{}
+		err = rc.JobContainer.UpdateFromEnv(path.Join(actPath, outputFileCommand), &output)(ctx)
+		if err != nil {
+			return err
+		}
+		for k, v := range output {
+			rc.setOutput(ctx, map[string]string{"name": k}, v)
+		}
+		if orgerr != nil {
+			return orgerr
+		}
 		return err
 	}
 }
@@ -162,13 +199,12 @@ func mergeEnv(ctx context.Context, step step) {
 		mergeIntoMap(env, rc.GetEnv())
 	}
 
-	if (*env)["PATH"] == "" {
+	path := rc.JobContainer.GetPathVariableName()
-		(*env)["PATH"] = `/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin`
+	if (*env)[path] == "" {
+		(*env)[path] = rc.JobContainer.DefaultPathVariable()
 	}
 	if rc.ExtraPath != nil && len(rc.ExtraPath) > 0 {
-		p := (*env)["PATH"]
+		(*env)[path] = rc.JobContainer.JoinPathVariable(append(rc.ExtraPath, (*env)[path])...)
-		(*env)["PATH"] = strings.Join(rc.ExtraPath, `:`)
-		(*env)["PATH"] += `:` + p
 	}
 
 	rc.withGithubEnv(ctx, step.getGithubContext(ctx), *env)

pkg/runner/step_action_local_test.go

@@ -2,6 +2,7 @@ package runner
 
 import (
 	"context"
+	"path/filepath"
 	"strings"
 	"testing"
 
@@ -63,7 +64,7 @@ func TestStepActionLocalTest(t *testing.T) {
 		},
 	}
 
-	salm.On("readAction", sal.Step, "/tmp/path/to/action", "", mock.Anything, mock.Anything).
+	salm.On("readAction", sal.Step, filepath.Clean("/tmp/path/to/action"), "", mock.Anything, mock.Anything).
 		Return(&model.Action{}, nil)
 
 	cm.On("UpdateFromImageEnv", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
@@ -78,7 +79,19 @@ func TestStepActionLocalTest(t *testing.T) {
 		return nil
 	})
 
-	salm.On("runAction", sal, "/tmp/path/to/action", (*remoteAction)(nil)).Return(func(ctx context.Context) error {
+	cm.On("Copy", "/var/run/act", mock.AnythingOfType("[]*container.FileEntry")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
+	cm.On("UpdateFromEnv", "/var/run/act/workflow/statecmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
+	cm.On("UpdateFromEnv", "/var/run/act/workflow/outputcmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
+	salm.On("runAction", sal, filepath.Clean("/tmp/path/to/action"), (*remoteAction)(nil)).Return(func(ctx context.Context) error {
 		return nil
 	})
 
@@ -262,6 +275,7 @@ func TestStepActionLocalPost(t *testing.T) {
 				Step:   tt.stepModel,
 				action: tt.actionModel,
 			}
+			sal.RunContext.ExprEval = sal.RunContext.NewExpressionEvaluator(ctx)
 
 			if tt.mocks.env {
 				cm.On("UpdateFromImageEnv", &sal.env).Return(func(ctx context.Context) error { return nil })
@@ -275,6 +289,18 @@ func TestStepActionLocalPost(t *testing.T) {
 					})
 				}
 				cm.On("Exec", suffixMatcher("pkg/runner/local/action/post.js"), sal.env, "", "").Return(func(ctx context.Context) error { return tt.err })
+
+				cm.On("Copy", "/var/run/act", mock.AnythingOfType("[]*container.FileEntry")).Return(func(ctx context.Context) error {
+					return nil
+				})
+
+				cm.On("UpdateFromEnv", "/var/run/act/workflow/statecmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+					return nil
+				})
+
+				cm.On("UpdateFromEnv", "/var/run/act/workflow/outputcmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+					return nil
+				})
 			}
 
 			err := sal.post()(ctx)

pkg/runner/step_action_remote.go

@@ -115,7 +115,7 @@ func (sar *stepActionRemote) main() common.Executor {
 					return nil
 				}
 				eval := sar.RunContext.NewExpressionEvaluator(ctx)
-				copyToPath := path.Join(sar.RunContext.Config.ContainerWorkdir(), eval.Interpolate(ctx, sar.Step.With["path"]))
+				copyToPath := path.Join(sar.RunContext.JobContainer.ToContainerPath(sar.RunContext.Config.Workdir), eval.Interpolate(ctx, sar.Step.With["path"]))
 				return sar.RunContext.JobContainer.CopyDir(copyToPath, sar.RunContext.Config.Workdir+string(filepath.Separator)+".", sar.RunContext.Config.UseGitIgnore)(ctx)
 			}
 

pkg/runner/step_action_remote_test.go

@@ -155,6 +155,7 @@ func TestStepActionRemote(t *testing.T) {
 				readAction: sarm.readAction,
 				runAction:  sarm.runAction,
 			}
+			sar.RunContext.ExprEval = sar.RunContext.NewExpressionEvaluator(ctx)
 
 			suffixMatcher := func(suffix string) interface{} {
 				return mock.MatchedBy(func(actionDir string) bool {
@@ -172,6 +173,18 @@ func TestStepActionRemote(t *testing.T) {
 			}
 			if tt.mocks.run {
 				sarm.On("runAction", sar, suffixMatcher("act/remote-action@v1"), newRemoteAction(sar.Step.Uses)).Return(func(ctx context.Context) error { return tt.runError })
+
+				cm.On("Copy", "/var/run/act", mock.AnythingOfType("[]*container.FileEntry")).Return(func(ctx context.Context) error {
+					return nil
+				})
+
+				cm.On("UpdateFromEnv", "/var/run/act/workflow/statecmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+					return nil
+				})
+
+				cm.On("UpdateFromEnv", "/var/run/act/workflow/outputcmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+					return nil
+				})
 			}
 
 			err := sar.pre()(ctx)
@@ -574,6 +587,7 @@ func TestStepActionRemotePost(t *testing.T) {
 				Step:   tt.stepModel,
 				action: tt.actionModel,
 			}
+			sar.RunContext.ExprEval = sar.RunContext.NewExpressionEvaluator(ctx)
 
 			if tt.mocks.env {
 				cm.On("UpdateFromImageEnv", &sar.env).Return(func(ctx context.Context) error { return nil })
@@ -582,6 +596,18 @@ func TestStepActionRemotePost(t *testing.T) {
 			}
 			if tt.mocks.exec {
 				cm.On("Exec", []string{"node", "/var/run/act/actions/remote-action@v1/post.js"}, sar.env, "", "").Return(func(ctx context.Context) error { return tt.err })
+
+				cm.On("Copy", "/var/run/act", mock.AnythingOfType("[]*container.FileEntry")).Return(func(ctx context.Context) error {
+					return nil
+				})
+
+				cm.On("UpdateFromEnv", "/var/run/act/workflow/statecmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+					return nil
+				})
+
+				cm.On("UpdateFromEnv", "/var/run/act/workflow/outputcmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+					return nil
+				})
 			}
 
 			err := sar.post()(ctx)

pkg/runner/step_docker.go

@@ -116,7 +116,7 @@ func (sd *stepDocker) newStepContainer(ctx context.Context, image string, cmd []
 	stepContainer := ContainerNewContainer(&container.NewContainerInput{
 		Cmd:         cmd,
 		Entrypoint:  entrypoint,
-		WorkingDir:  rc.Config.ContainerWorkdir(),
+		WorkingDir:  rc.JobContainer.ToContainerPath(rc.Config.Workdir),
 		Image:       image,
 		Username:    rc.Config.Secrets["DOCKER_USERNAME"],
 		Password:    rc.Config.Secrets["DOCKER_PASSWORD"],

pkg/runner/step_docker_test.go

@@ -17,7 +17,7 @@ func TestStepDockerMain(t *testing.T) {
 
 	// mock the new container call
 	origContainerNewContainer := ContainerNewContainer
-	ContainerNewContainer = func(containerInput *container.NewContainerInput) container.Container {
+	ContainerNewContainer = func(containerInput *container.NewContainerInput) container.ExecutionsEnvironment {
 		input = containerInput
 		return cm
 	}
@@ -25,6 +25,8 @@ func TestStepDockerMain(t *testing.T) {
 		ContainerNewContainer = origContainerNewContainer
 	})()
 
+	ctx := context.Background()
+
 	sd := &stepDocker{
 		RunContext: &RunContext{
 			StepResults: map[string]*model.StepResult{},
@@ -51,8 +53,7 @@ func TestStepDockerMain(t *testing.T) {
 			WorkingDirectory: "workdir",
 		},
 	}
-
+	sd.RunContext.ExprEval = sd.RunContext.NewExpressionEvaluator(ctx)
-	ctx := context.Background()
 
 	cm.On("UpdateFromImageEnv", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
 		return nil
@@ -86,6 +87,18 @@ func TestStepDockerMain(t *testing.T) {
 		return nil
 	})
 
+	cm.On("Copy", "/var/run/act", mock.AnythingOfType("[]*container.FileEntry")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
+	cm.On("UpdateFromEnv", "/var/run/act/workflow/statecmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
+	cm.On("UpdateFromEnv", "/var/run/act/workflow/outputcmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
 	err := sd.main()(ctx)
 	assert.Nil(t, err)
 

pkg/runner/step_run.go

@@ -68,7 +68,8 @@ func (sr *stepRun) setupShellCommandExecutor() common.Executor {
 			return err
 		}
 
-		return sr.RunContext.JobContainer.Copy(ActPath, &container.FileEntry{
+		rc := sr.getRunContext()
+		return rc.JobContainer.Copy(rc.JobContainer.GetActPath(), &container.FileEntry{
 			Name: scriptName,
 			Mode: 0755,
 			Body: script,
@@ -128,7 +129,8 @@ func (sr *stepRun) setupShellCommand(ctx context.Context) (name, script string,
 		logger.Debugf("Wrote add-mask command to '%s'", name)
 	}
 
-	scriptPath := fmt.Sprintf("%s/%s", ActPath, name)
+	rc := sr.getRunContext()
+	scriptPath := fmt.Sprintf("%s/%s", rc.JobContainer.GetActPath(), name)
 	sr.cmd, err = shellquote.Split(strings.Replace(scCmd, `{0}`, scriptPath, 1))
 
 	return name, script, err

pkg/runner/step_run_test.go

@@ -65,6 +65,18 @@ func TestStepRun(t *testing.T) {
 		return nil
 	})
 
+	cm.On("Copy", "/var/run/act", mock.AnythingOfType("[]*container.FileEntry")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
+	cm.On("UpdateFromEnv", "/var/run/act/workflow/statecmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
+	cm.On("UpdateFromEnv", "/var/run/act/workflow/outputcmd.txt", mock.AnythingOfType("*map[string]string")).Return(func(ctx context.Context) error {
+		return nil
+	})
+
 	ctx := context.Background()
 
 	err := sr.main()(ctx)

pkg/runner/testdata/nix-prepend-path/push.yml

@@ -0,0 +1,26 @@
+on:
+  push:
+defaults:
+  run:
+    shell: sh
+jobs:
+  test:
+    runs-on: self-hosted
+    steps:
+    - run: |
+        mkdir build
+        echo '#!/usr/bin/env sh' > build/testtool
+        echo 'echo Hi' >> build/testtool
+        chmod +x build/testtool
+    - run: |
+        echo '${{ tojson(runner) }}'
+        ls
+        echo '${{ github.workspace }}'
+      working-directory: ${{ github.workspace }}/build
+    - run: |
+        echo "$GITHUB_PATH"
+        echo '${{ github.workspace }}/build' > "$GITHUB_PATH"
+        cat "$GITHUB_PATH"
+    - run: |
+        echo "$PATH"
+        testtool

pkg/runner/testdata/pull-request/main.yaml

@@ -5,6 +5,22 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - run: echo '${{github.ref}}' 
+      # test refs from event.json
+      - run: echo '${{github.ref}}'
       - run: echo '${{github.head_ref}}' | grep sample-head-ref
       - run: echo '${{github.base_ref}}' | grep sample-base-ref
+      # test main/composite context equality with data from event.json
+      - run: |
+          runs:
+            using: composite
+            steps:
+            - run: |
+                echo WORKFLOW_GITHUB_CONTEXT="$WORKFLOW_GITHUB_CONTEXT"
+                echo COMPOSITE_GITHUB_CONTEXT="$COMPOSITE_GITHUB_CONTEXT"
+                [[ "$WORKFLOW_GITHUB_CONTEXT" = "$COMPOSITE_GITHUB_CONTEXT" ]]
+              env:
+                WORKFLOW_GITHUB_CONTEXT: ${{ tojson(tojson(github.event)) }}
+                COMPOSITE_GITHUB_CONTEXT: ${{ '${{tojson(github.event)}}' }}
+              shell: bash
+        shell: cp {0} action.yml
+      - uses: ./

pkg/runner/testdata/windows-add-env/push.yml

@@ -0,0 +1,27 @@
+on:
+  push:
+defaults:
+  run:
+    shell: pwsh
+jobs:
+  test:
+    runs-on: windows-latest
+    steps:
+    - run: |
+        echo $env:GITHUB_ENV
+        echo "key=val" > $env:GITHUB_ENV
+        echo "key2<<EOF" >> $env:GITHUB_ENV
+        echo "line1" >> $env:GITHUB_ENV
+        echo "line2" >> $env:GITHUB_ENV
+        echo "EOF" >> $env:GITHUB_ENV
+        cat $env:GITHUB_ENV
+    - run: |
+        ls env:
+        if($env:key -ne 'val') {
+          echo "Unexpected value for `$env:key: $env:key"
+          exit 1
+        }
+        if($env:key2 -ne "line1`nline2") {
+          echo "Unexpected value for `$env:key2: $env:key2"
+          exit 1
+        }

pkg/runner/testdata/windows-prepend-path/push.yml

@@ -0,0 +1,25 @@
+on:
+  push:
+defaults:
+  run:
+    shell: pwsh
+jobs:
+  test:
+    runs-on: windows-latest
+    steps:
+    - run: |
+        mkdir build
+        echo '@echo off' > build/test.cmd
+        echo 'echo Hi' >> build/test.cmd
+    - run: |
+        echo '${{ tojson(runner) }}'
+        ls
+        echo '${{ github.workspace }}'
+      working-directory: ${{ github.workspace }}\build
+    - run: |
+        echo $env:GITHUB_PATH
+        echo '${{ github.workspace }}\build' > $env:GITHUB_PATH
+        cat $env:GITHUB_PATH
+    - run: |
+        echo $env:PATH
+        test

pkg/runner/testdata/workflow_dispatch-scalar-composite-action/workflow_dispatch.yml

@@ -0,0 +1,17 @@
+name: workflow_dispatch
+
+on: workflow_dispatch
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - run: |
+          runs:
+            using: composite
+            steps:
+            - run: |
+                exit 0
+              shell: bash
+        shell: cp {0} action.yml
+      - uses: ./

pkg/runner/testdata/workflow_dispatch-scalar/workflow_dispatch.yml

@@ -0,0 +1,9 @@
+name: workflow_dispatch
+
+on: workflow_dispatch
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - run: exit 0

pkg/runner/testdata/workflow_dispatch_no_inputs_mapping/workflow_dispatch.yml

@@ -0,0 +1,10 @@
+name: workflow_dispatch
+
+on:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - run: exit 0