Adding upstream version 9.0.0.HEADupstream/9.0.0upstreamdebian

Signed-off-by: Daniel Baumann <daniel@debian.org>

1 files changed, 351 insertions, 0 deletions

diff --git a/modules/git/repo_attribute_test.go b/modules/git/repo_attribute_test.go
new file mode 100644
index 0000000..fa34164
--- /dev/null
+++ b/modules/git/repo_attribute_test.go
@@ -0,0 +1,351 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/modules/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewCheckAttrStdoutReader(t *testing.T) {
+	t.Run("two_times", func(t *testing.T) {
+		read := newCheckAttrStdoutReader(strings.NewReader(
+			".gitignore\x00linguist-vendored\x00unspecified\x00"+
+				".gitignore\x00linguist-vendored\x00specified",
+		), 1)
+
+		// first read
+		attr, err := read()
+		require.NoError(t, err)
+		assert.Equal(t, map[string]GitAttribute{
+			"linguist-vendored": GitAttribute("unspecified"),
+		}, attr)
+
+		// second read
+		attr, err = read()
+		require.NoError(t, err)
+		assert.Equal(t, map[string]GitAttribute{
+			"linguist-vendored": GitAttribute("specified"),
+		}, attr)
+	})
+	t.Run("incomplete", func(t *testing.T) {
+		read := newCheckAttrStdoutReader(strings.NewReader(
+			"filename\x00linguist-vendored",
+		), 1)
+
+		_, err := read()
+		assert.Equal(t, io.ErrUnexpectedEOF, err)
+	})
+	t.Run("three_times", func(t *testing.T) {
+		read := newCheckAttrStdoutReader(strings.NewReader(
+			"shouldbe.vendor\x00linguist-vendored\x00set\x00"+
+				"shouldbe.vendor\x00linguist-generated\x00unspecified\x00"+
+				"shouldbe.vendor\x00linguist-language\x00unspecified\x00",
+		), 1)
+
+		// first read
+		attr, err := read()
+		require.NoError(t, err)
+		assert.Equal(t, map[string]GitAttribute{
+			"linguist-vendored": GitAttribute("set"),
+		}, attr)
+
+		// second read
+		attr, err = read()
+		require.NoError(t, err)
+		assert.Equal(t, map[string]GitAttribute{
+			"linguist-generated": GitAttribute("unspecified"),
+		}, attr)
+
+		// third read
+		attr, err = read()
+		require.NoError(t, err)
+		assert.Equal(t, map[string]GitAttribute{
+			"linguist-language": GitAttribute("unspecified"),
+		}, attr)
+	})
+}
+
+func TestGitAttributeBareNonBare(t *testing.T) {
+	if !SupportCheckAttrOnBare {
+		t.Skip("git check-attr supported on bare repo starting with git 2.40")
+	}
+
+	repoPath := filepath.Join(testReposDir, "language_stats_repo")
+	gitRepo, err := openRepositoryWithDefaultContext(repoPath)
+	require.NoError(t, err)
+	defer gitRepo.Close()
+
+	for _, commitID := range []string{
+		"8fee858da5796dfb37704761701bb8e800ad9ef3",
+		"341fca5b5ea3de596dc483e54c2db28633cd2f97",
+	} {
+		bareStats, err := gitRepo.GitAttributes(commitID, "i-am-a-python.p", LinguistAttributes...)
+		require.NoError(t, err)
+
+		defer test.MockVariableValue(&SupportCheckAttrOnBare, false)()
+		cloneStats, err := gitRepo.GitAttributes(commitID, "i-am-a-python.p", LinguistAttributes...)
+		require.NoError(t, err)
+
+		assert.EqualValues(t, cloneStats, bareStats)
+		refStats := cloneStats
+
+		t.Run("GitAttributeChecker/"+commitID+"/SupportBare", func(t *testing.T) {
+			bareChecker, err := gitRepo.GitAttributeChecker(commitID, LinguistAttributes...)
+			require.NoError(t, err)
+			defer bareChecker.Close()
+
+			bareStats, err := bareChecker.CheckPath("i-am-a-python.p")
+			require.NoError(t, err)
+			assert.EqualValues(t, refStats, bareStats)
+		})
+		t.Run("GitAttributeChecker/"+commitID+"/NoBareSupport", func(t *testing.T) {
+			defer test.MockVariableValue(&SupportCheckAttrOnBare, false)()
+			cloneChecker, err := gitRepo.GitAttributeChecker(commitID, LinguistAttributes...)
+			require.NoError(t, err)
+			defer cloneChecker.Close()
+
+			cloneStats, err := cloneChecker.CheckPath("i-am-a-python.p")
+			require.NoError(t, err)
+
+			assert.EqualValues(t, refStats, cloneStats)
+		})
+	}
+}
+
+func TestGitAttributes(t *testing.T) {
+	repoPath := filepath.Join(testReposDir, "language_stats_repo")
+	gitRepo, err := openRepositoryWithDefaultContext(repoPath)
+	require.NoError(t, err)
+	defer gitRepo.Close()
+
+	attr, err := gitRepo.GitAttributes("8fee858da5796dfb37704761701bb8e800ad9ef3", "i-am-a-python.p", LinguistAttributes...)
+	require.NoError(t, err)
+	assert.EqualValues(t, map[string]GitAttribute{
+		"gitlab-language":        "unspecified",
+		"linguist-detectable":    "unspecified",
+		"linguist-documentation": "unspecified",
+		"linguist-generated":     "unspecified",
+		"linguist-language":      "Python",
+		"linguist-vendored":      "unspecified",
+	}, attr)
+
+	attr, err = gitRepo.GitAttributes("341fca5b5ea3de596dc483e54c2db28633cd2f97", "i-am-a-python.p", LinguistAttributes...)
+	require.NoError(t, err)
+	assert.EqualValues(t, map[string]GitAttribute{
+		"gitlab-language":        "unspecified",
+		"linguist-detectable":    "unspecified",
+		"linguist-documentation": "unspecified",
+		"linguist-generated":     "unspecified",
+		"linguist-language":      "Cobra",
+		"linguist-vendored":      "unspecified",
+	}, attr)
+}
+
+func TestGitAttributeFirst(t *testing.T) {
+	repoPath := filepath.Join(testReposDir, "language_stats_repo")
+	gitRepo, err := openRepositoryWithDefaultContext(repoPath)
+	require.NoError(t, err)
+	defer gitRepo.Close()
+
+	t.Run("first is specified", func(t *testing.T) {
+		language, err := gitRepo.GitAttributeFirst("8fee858da5796dfb37704761701bb8e800ad9ef3", "i-am-a-python.p", "linguist-language", "gitlab-language")
+		require.NoError(t, err)
+		assert.Equal(t, "Python", language.String())
+	})
+
+	t.Run("second is specified", func(t *testing.T) {
+		language, err := gitRepo.GitAttributeFirst("8fee858da5796dfb37704761701bb8e800ad9ef3", "i-am-a-python.p", "gitlab-language", "linguist-language")
+		require.NoError(t, err)
+		assert.Equal(t, "Python", language.String())
+	})
+
+	t.Run("none is specified", func(t *testing.T) {
+		language, err := gitRepo.GitAttributeFirst("8fee858da5796dfb37704761701bb8e800ad9ef3", "i-am-a-python.p", "linguist-detectable", "gitlab-language", "non-existing")
+		require.NoError(t, err)
+		assert.Equal(t, "", language.String())
+	})
+}
+
+func TestGitAttributeStruct(t *testing.T) {
+	assert.Equal(t, "", GitAttribute("").String())
+	assert.Equal(t, "", GitAttribute("unspecified").String())
+
+	assert.Equal(t, "python", GitAttribute("python").String())
+
+	assert.Equal(t, "text?token=Error", GitAttribute("text?token=Error").String())
+	assert.Equal(t, "text", GitAttribute("text?token=Error").Prefix())
+}
+
+func TestGitAttributeCheckerError(t *testing.T) {
+	prepareRepo := func(t *testing.T) *Repository {
+		t.Helper()
+		path := t.TempDir()
+
+		// we can't use unittest.CopyDir because of an import cycle (git.Init in unittest)
+		require.NoError(t, CopyFS(path, os.DirFS(filepath.Join(testReposDir, "language_stats_repo"))))
+
+		gitRepo, err := openRepositoryWithDefaultContext(path)
+		require.NoError(t, err)
+		return gitRepo
+	}
+
+	t.Run("RemoveAll/BeforeRun", func(t *testing.T) {
+		gitRepo := prepareRepo(t)
+		defer gitRepo.Close()
+
+		require.NoError(t, os.RemoveAll(gitRepo.Path))
+
+		ac, err := gitRepo.GitAttributeChecker("", "linguist-language")
+		require.NoError(t, err)
+
+		_, err = ac.CheckPath("i-am-a-python.p")
+		require.Error(t, err)
+		assert.Contains(t, err.Error(), `git check-attr (stderr: ""):`)
+	})
+
+	t.Run("RemoveAll/DuringRun", func(t *testing.T) {
+		gitRepo := prepareRepo(t)
+		defer gitRepo.Close()
+
+		ac, err := gitRepo.GitAttributeChecker("", "linguist-language")
+		require.NoError(t, err)
+
+		// calling CheckPath before would allow git to cache part of it and successfully return later
+		require.NoError(t, os.RemoveAll(gitRepo.Path))
+
+		_, err = ac.CheckPath("i-am-a-python.p")
+		if err == nil {
+			t.Skip(
+				"git check-attr started too fast and CheckPath was successful (and likely cached)",
+				"https://codeberg.org/forgejo/forgejo/issues/2948",
+			)
+		}
+		// Depending on the order of execution, the returned error can be:
+		// - a launch error "fork/exec /usr/bin/git: no such file or directory" (when the removal happens before the Run)
+		// - a git error (stderr: "fatal: Unable to read current working directory: No such file or directory"): exit status 128 (when the removal happens after the Run)
+		// (pipe error "write |1: broken pipe" should be replaced by one of the Run errors above)
+		assert.Contains(t, err.Error(), `git check-attr`)
+	})
+
+	t.Run("Cancelled/BeforeRun", func(t *testing.T) {
+		gitRepo := prepareRepo(t)
+		defer gitRepo.Close()
+
+		var cancel context.CancelFunc
+		gitRepo.Ctx, cancel = context.WithCancel(gitRepo.Ctx)
+		cancel()
+
+		ac, err := gitRepo.GitAttributeChecker("8fee858da5796dfb37704761701bb8e800ad9ef3", "linguist-language")
+		require.NoError(t, err)
+
+		_, err = ac.CheckPath("i-am-a-python.p")
+		require.ErrorIs(t, err, context.Canceled)
+	})
+
+	t.Run("Cancelled/DuringRun", func(t *testing.T) {
+		gitRepo := prepareRepo(t)
+		defer gitRepo.Close()
+
+		var cancel context.CancelFunc
+		gitRepo.Ctx, cancel = context.WithCancel(gitRepo.Ctx)
+
+		ac, err := gitRepo.GitAttributeChecker("8fee858da5796dfb37704761701bb8e800ad9ef3", "linguist-language")
+		require.NoError(t, err)
+
+		attr, err := ac.CheckPath("i-am-a-python.p")
+		require.NoError(t, err)
+		assert.Equal(t, "Python", attr["linguist-language"].String())
+
+		errCh := make(chan error)
+		go func() {
+			cancel()
+
+			for err == nil {
+				_, err = ac.CheckPath("i-am-a-python.p")
+				runtime.Gosched() // the cancellation must have time to propagate
+			}
+			errCh <- err
+		}()
+
+		select {
+		case <-time.After(time.Second):
+			t.Error("CheckPath did not complete within 1s")
+		case err = <-errCh:
+			require.ErrorIs(t, err, context.Canceled)
+		}
+	})
+
+	t.Run("Closed/BeforeRun", func(t *testing.T) {
+		gitRepo := prepareRepo(t)
+		defer gitRepo.Close()
+
+		ac, err := gitRepo.GitAttributeChecker("8fee858da5796dfb37704761701bb8e800ad9ef3", "linguist-language")
+		require.NoError(t, err)
+
+		require.NoError(t, ac.Close())
+
+		_, err = ac.CheckPath("i-am-a-python.p")
+		require.ErrorIs(t, err, fs.ErrClosed)
+	})
+
+	t.Run("Closed/DuringRun", func(t *testing.T) {
+		gitRepo := prepareRepo(t)
+		defer gitRepo.Close()
+
+		ac, err := gitRepo.GitAttributeChecker("8fee858da5796dfb37704761701bb8e800ad9ef3", "linguist-language")
+		require.NoError(t, err)
+
+		attr, err := ac.CheckPath("i-am-a-python.p")
+		require.NoError(t, err)
+		assert.Equal(t, "Python", attr["linguist-language"].String())
+
+		require.NoError(t, ac.Close())
+
+		_, err = ac.CheckPath("i-am-a-python.p")
+		require.ErrorIs(t, err, fs.ErrClosed)
+	})
+}
+
+// CopyFS is adapted from https://github.com/golang/go/issues/62484
+// which should be available with go1.23
+func CopyFS(dir string, fsys fs.FS) error {
+	return fs.WalkDir(fsys, ".", func(path string, d fs.DirEntry, _ error) error {
+		targ := filepath.Join(dir, filepath.FromSlash(path))
+		if d.IsDir() {
+			return os.MkdirAll(targ, 0o777)
+		}
+		r, err := fsys.Open(path)
+		if err != nil {
+			return err
+		}
+		defer r.Close()
+		info, err := r.Stat()
+		if err != nil {
+			return err
+		}
+		w, err := os.OpenFile(targ, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0o666|info.Mode()&0o777)
+		if err != nil {
+			return err
+		}
+		if _, err := io.Copy(w, r); err != nil {
+			w.Close()
+			return fmt.Errorf("copying %s: %v", path, err)
+		}
+		return w.Close()
+	})
+}