fix: align runner behaviours (#1338)

Contains a number of small bug fixes where jobs behaved differently from GitHub or failed silently.

1. Hooks fail on a refused `::set-env::` or `::add-path::` and no longer inherit the last step's identity
1. Docker build, exec and wait errors are returned instead of swallowed, token-only registry credentials work, logs of `--tty` services decode
1. Env files split lines like GitHub on each OS, so a carriage return is kept on Linux and CRLF ends a line on Windows, empty heredoc names or delimiters are rejected
1. Post steps run after their pre step even when main was skipped, composites see undeclared inputs, `runs.args` wins without `with.args` being parsed
1. Docker actions skip evaluating defaults of inputs given in `with` and read `entryPoint` and `args` in any case, a lowercase `dockerfile` is found, undeclared inputs get GitHub's warning
1. A user-set `CI` is kept, `GITHUB_REPOSITORY_ID` and the other missing `GITHUB_*` variables are exported
1. `timeout-minutes` can read the step's own `env`, a step-level `ACTIONS_ALLOW_UNSECURE_COMMANDS: false` beats a job-level `true` while the runner's own opt-in still wins, `pwsh` quotes the script path
1. A step `env:` given as one expression such as `${{ fromJSON(matrix.env) }}` is applied, `hashFiles` fails with GitHub's messages on script errors and after 120 seconds, a job image without node still gets an empty hash
1. A step whose command files cannot be reset fails instead of importing stale ones, a timeout between steps fails the job instead of reporting success
1. One named volume can be mounted at several paths, host-mode PTY steps keep their last output when they fail, host scratch directories are removed when job setup fails
1. Cancelling a step right after it starts kills its whole process tree
1. Cache prefix restores pick the newest entry created within the same second, also on S3, cache commits with a wrong size are rejected
1. Artifact chunks are written at their offset, download URLs are escaped, listing a run without artifacts no longer crashes
1. Poll backoff reaches `fetch_interval_max`, proxy passwords are masked in more forms, secrets are also masked in step names and in their quoted form in the runner log, a failed final report is logged
1. On Windows hosts a differently cased unsecure-commands opt-in or proxy variable counts, and an early cancel no longer leaks a job object handle
1. Interactive `register` prompts for a missing token and stops on SIGTERM, `exec --list --detect-event` no longer panics without events, `config set` works on `cache.s3` keys

Reviewed-on: https://gitea.com/gitea/runner/pulls/1338
Reviewed-by: bircni <[email protected]>
Co-authored-by: silverwind <[email protected]>

act/runner/expression.go

@@ -7,6 +7,7 @@ package runner
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"maps"
 	"path"
@@ -127,7 +128,7 @@ func (rc *RunContext) newStepExpressionEvaluator(ctx context.Context, step step,
 func getHashFilesFunction(ctx context.Context, rc *RunContext) func(v []reflect.Value) (any, error) {
 	return func(v []reflect.Value) (any, error) {
 		if rc.JobContainer != nil {
-			timeed, cancel := context.WithTimeout(ctx, time.Minute)
+			timeoutCtx, cancel := context.WithTimeout(ctx, 120*time.Second)
 			defer cancel()
 			name := "workflow/hashfiles/index.js"
 			hout := &bytes.Buffer{}
@@ -154,20 +155,30 @@ func getHashFilesFunction(ctx context.Context, rc *RunContext) func(v []reflect.
 			}
 
 			stdout, stderr := rc.JobContainer.ReplaceLogWriter(hout, herr)
-			_ = rc.JobContainer.Copy(rc.JobContainer.GetActPath(), &container.FileEntry{
+			defer rc.JobContainer.ReplaceLogWriter(stdout, stderr)
+			err := rc.JobContainer.Copy(rc.JobContainer.GetActPath(), &container.FileEntry{
 				Name: name,
 				Mode: 0o644,
 				Body: hashfiles,
-			}).
-				Then(rc.JobContainer.Exec([]string{"node", path.Join(rc.JobContainer.GetActPath(), name)},
-					env, "", "")).
-				Finally(func(context.Context) error {
-					rc.JobContainer.ReplaceLogWriter(stdout, stderr)
-					return nil
-				})(timeed)
-			if _, output, found := strings.Cut(hout.String()+"\n"+herr.String(), "__OUTPUT__"); found {
-				if hash, _, found := strings.Cut(output, "__OUTPUT__"); found {
-					return hash, nil
+			}).Then(rc.JobContainer.Exec([]string{"node", path.Join(rc.JobContainer.GetActPath(), name)}, env, "", ""))(timeoutCtx)
+			quotedPatterns := expressionStringEscape(strings.Join(patterns, ", "))
+			switch {
+			case err == nil:
+			case ctx.Err() != nil:
+				return "", ctx.Err()
+			case timeoutCtx.Err() != nil || errors.Is(err, context.DeadlineExceeded):
+				return "", fmt.Errorf("hashFiles('%s') couldn't finish within 120 seconds", quotedPatterns)
+			case hashFilesNodeMissing(err):
+				common.Logger(ctx).With(rawOutputField, true).Warnf("##[warning]hashFiles could not run because node is unavailable in the job environment. Returning an empty string.")
+				return "", nil
+			default:
+				return "", fmt.Errorf("hashFiles('%s') failed. Fail to hash files under directory '%s'", quotedPatterns, rc.githubWorkspace())
+			}
+			for line := range strings.Lines(hout.String() + "\n" + herr.String()) {
+				if hash, ok := strings.CutPrefix(strings.TrimRight(line, "\r\n"), "__OUTPUT__"); ok {
+					if hash, ok = strings.CutSuffix(hash, "__OUTPUT__"); ok {
+						return hash, nil
+					}
 				}
 			}
 		}
@@ -175,6 +186,11 @@ func getHashFilesFunction(ctx context.Context, rc *RunContext) func(v []reflect.
 	}
 }
 
+func hashFilesNodeMissing(err error) bool {
+	exitErr, ok := errors.AsType[container.ExitCodeError](err)
+	return ok && (exitErr == 126 || exitErr == 127) || err.Error() == "Cannot find: node in PATH"
+}
+
 type expressionEvaluator struct {
 	interpreter exprparser.Interpreter
 }