test: improve source tests

Signed-off-by: Carlos A Becker <caarlos0@users.noreply.github.com>

internal/pipe/sourcearchive/source_test.go

@@ -9,7 +9,6 @@ import (
 	"github.com/goreleaser/goreleaser/internal/testctx"
 	"github.com/goreleaser/goreleaser/internal/testlib"
 	"github.com/goreleaser/goreleaser/pkg/config"
-	"github.com/goreleaser/goreleaser/pkg/context"
 	"github.com/stretchr/testify/require"
 )
 
@@ -23,8 +22,20 @@ func TestArchive(t *testing.T) {
 			require.NoError(t, os.WriteFile("code.rb", []byte("not really code"), 0o655))
 			require.NoError(t, os.WriteFile("code.py", []byte("print 1"), 0o655))
 			require.NoError(t, os.WriteFile("README.md", []byte("# my dope fake project"), 0o655))
+			require.NoError(t, os.WriteFile(".gitignore", []byte(`
+added-later.txt
+ignored.txt
+code.txt
+subfolder/
+			`), 0o655))
+
+			require.NoError(t, os.WriteFile(".gitattributes", []byte(`
+.VERSION export-subst
+			`), 0o655))
+			require.NoError(t, os.WriteFile(".VERSION", []byte("$Format:%d$"), 0o655))
 			testlib.GitAdd(t)
 			testlib.GitCommit(t, "feat: first")
+			testlib.GitTag(t, "v1.0.0")
 			require.NoError(t, os.WriteFile("added-later.txt", []byte("this file was added later"), 0o655))
 			require.NoError(t, os.WriteFile("ignored.md", []byte("never added"), 0o655))
 			require.NoError(t, os.WriteFile("code.txt", []byte("not really code"), 0o655))
@@ -45,8 +56,9 @@ func TestArchive(t *testing.T) {
 						},
 					},
 				},
-				testctx.WithGitInfo(context.GitInfo{FullCommit: "HEAD"}),
+				testctx.WithCommit("HEAD"),
 				testctx.WithVersion("1.0.0"),
+				testctx.WithCurrentTag("v1.0.0"),
 			)
 
 			require.NoError(t, Pipe{}.Default(ctx))
@@ -69,6 +81,9 @@ func TestArchive(t *testing.T) {
 
 			expected := []string{
 				"foo-1.0.0/",
+				"foo-1.0.0/.gitignore",
+				"foo-1.0.0/.gitattributes",
+				"foo-1.0.0/.VERSION",
 				"foo-1.0.0/README.md",
 				"foo-1.0.0/code.py",
 				"foo-1.0.0/code.rb",
@@ -83,6 +98,9 @@ func TestArchive(t *testing.T) {
 			}
 
 			require.ElementsMatch(t, expected, testlib.LsArchive(t, path, format))
+
+			version := testlib.GetFileFromArchive(t, path, format, "foo-1.0.0/.VERSION")
+			require.Equal(t, " (HEAD -> main, tag: v1.0.0)", string(version))
 		})
 	}
 }

internal/testctx/testctx.go

@@ -70,6 +70,7 @@ func WithCurrentTag(tag string) Opt {
 func WithCommit(commig string) Opt {
 	return func(ctx *context.Context) {
 		ctx.Git.Commit = commig
+		ctx.Git.FullCommit = commig
 	}
 }
 

internal/testlib/archive.go

@@ -12,6 +12,30 @@ import (
 	"github.com/ulikunitz/xz"
 )
 
+// GetFileFromArchive returns the contents of filename inside the given archive
+// path.
+func GetFileFromArchive(tb testing.TB, path, format, filename string) []byte {
+	tb.Helper()
+	f := openFile(tb, path)
+	switch format {
+	case "tar.gz", "tgz":
+		return catTarFile(tb, openGzip(tb, f), filename)
+	case "tar.xz", "txz":
+		return catTarFile(tb, openXz(tb, f), filename)
+	case "tar":
+		return catTarFile(tb, f, filename)
+	case "zip":
+		return catZipFile(tb, f, filename)
+	case "gz":
+		out, err := io.ReadAll(openGzip(tb, f))
+		require.NoError(tb, err)
+		return out
+	default:
+		tb.Errorf("invalid format: %s", format)
+		return nil
+	}
+}
+
 // LsArchive return the file list of a given archive in a given formatkj
 func LsArchive(tb testing.TB, path, format string) []string {
 	tb.Helper()
@@ -47,6 +71,27 @@ func openXz(tb testing.TB, r io.Reader) *xz.Reader {
 	return xz
 }
 
+func catZipFile(tb testing.TB, f *os.File, path string) []byte {
+	tb.Helper()
+
+	stat, err := f.Stat()
+	require.NoError(tb, err)
+	z, err := zip.NewReader(f, stat.Size())
+	require.NoError(tb, err)
+
+	for _, zf := range z.File {
+		if path == zf.Name {
+			zz, err := zf.Open()
+			require.NoError(tb, err)
+			tb.Cleanup(func() { require.NoError(tb, zz.Close()) })
+			bts, err := io.ReadAll(zz)
+			require.NoError(tb, err)
+			return bts
+		}
+	}
+	return nil
+}
+
 func lsZip(tb testing.TB, f *os.File) []string {
 	tb.Helper()
 
@@ -62,6 +107,27 @@ func lsZip(tb testing.TB, f *os.File) []string {
 	return paths
 }
 
+func catTarFile(tb testing.TB, f io.Reader, path string) []byte {
+	tb.Helper()
+
+	z := tar.NewReader(f)
+	for {
+		h, err := z.Next()
+		if h == nil || err == io.EOF {
+			break
+		}
+		if h.Format == tar.FormatPAX {
+			continue
+		}
+		if h.Name == path {
+			out, err := io.ReadAll(z)
+			require.NoError(tb, err)
+			return out
+		}
+	}
+	return nil
+}
+
 func doLsTar(f io.Reader) []string {
 	z := tar.NewReader(f)
 	var paths []string