5 files changed, 66 insertions, 16 deletions
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00bfc299..d1b61a95 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ All notable changes to Gogs are documented in this file.
 ### Fixed
 
 - _Regression:_ When running Gogs on Windows, push commits no longer fail on a daily basis with the error "pre-receive hook declined". [#6316](https://github.com/gogs/gogs/issues/6316)
+- Auto-linked commit SHAs now have correct links. [#6300](https://github.com/gogs/gogs/issues/6300)
 
 ### Removed
 
diff --git a/internal/db/repo.go b/internal/db/repo.go
index 2a887c7f..31ea9ac6 100644
--- a/internal/db/repo.go
+++ b/internal/db/repo.go
@@ -429,24 +429,29 @@ func (repo *Repository) UpdateSize() error {
 	return nil
 }
 
-// ComposeMetas composes a map of metas for rendering external issue tracker URL.
+// ComposeMetas composes a map of metas for rendering SHA1 URL and external issue tracker URL.
 func (repo *Repository) ComposeMetas() map[string]string {
-	if !repo.EnableExternalTracker {
-		return nil
-	} else if repo.ExternalMetas == nil {
-		repo.ExternalMetas = map[string]string{
-			"format": repo.ExternalTrackerFormat,
-			"user":   repo.MustOwner().Name,
-			"repo":   repo.Name,
-		}
+	if repo.ExternalMetas != nil {
+		return repo.ExternalMetas
+	}
+
+	repo.ExternalMetas = map[string]string{
+		"repoLink": repo.Link(),
+	}
+
+	if repo.EnableExternalTracker {
+		repo.ExternalMetas["user"] = repo.MustOwner().Name
+		repo.ExternalMetas["repo"] = repo.Name
+		repo.ExternalMetas["format"] = repo.ExternalTrackerFormat
+
 		switch repo.ExternalTrackerStyle {
 		case markup.ISSUE_NAME_STYLE_ALPHANUMERIC:
 			repo.ExternalMetas["style"] = markup.ISSUE_NAME_STYLE_ALPHANUMERIC
 		default:
 			repo.ExternalMetas["style"] = markup.ISSUE_NAME_STYLE_NUMERIC
 		}
-
 	}
+
 	return repo.ExternalMetas
 }
 
diff --git a/internal/db/repo_test.go b/internal/db/repo_test.go
index f689f05d..ad920be7 100644
--- a/internal/db/repo_test.go
+++ b/internal/db/repo_test.go
@@ -19,14 +19,19 @@ func TestRepository_ComposeMetas(t *testing.T) {
 
 	t.Run("no external tracker is configured", func(t *testing.T) {
 		repo.EnableExternalTracker = false
-		assert.Equal(t, map[string]string(nil), repo.ComposeMetas())
 
-		// Should be nil even if other settings are present
-		repo.ExternalTrackerStyle = markup.ISSUE_NAME_STYLE_NUMERIC
-		assert.Equal(t, map[string]string(nil), repo.ComposeMetas())
+		metas := repo.ComposeMetas()
+		assert.Equal(t, metas["repoLink"], repo.Link())
+
+		// Should no format and style if no external tracker is configured
+		_, ok := metas["format"]
+		assert.False(t, ok)
+		_, ok = metas["style"]
+		assert.False(t, ok)
 	})
 
 	t.Run("an external issue tracker is configured", func(t *testing.T) {
+		repo.ExternalMetas = nil
 		repo.EnableExternalTracker = true
 
 		// Default to numeric issue style
diff --git a/internal/markup/markup.go b/internal/markup/markup.go
index 65b14865..ad9d7fa1 100644
--- a/internal/markup/markup.go
+++ b/internal/markup/markup.go
@@ -145,7 +145,8 @@ func RenderSha1CurrentPattern(rawBytes []byte, urlPrefix string) []byte {
 		if com.StrTo(m).MustInt() > 0 {
 			return m
 		}
-		return fmt.Sprintf(`<a href="%s/commit/%s"><code>%s</code></a>`, urlPrefix, m, tool.ShortSHA1(string(m)))
+
+		return fmt.Sprintf(`<a href="%s/commit/%s"><code>%s</code></a>`, urlPrefix, m, tool.ShortSHA1(m))
 	}))
 }
 
@@ -160,7 +161,7 @@ func RenderSpecialLink(rawBytes []byte, urlPrefix string, metas map[string]strin
 
 	rawBytes = RenderIssueIndexPattern(rawBytes, urlPrefix, metas)
 	rawBytes = RenderCrossReferenceIssueIndexPattern(rawBytes, urlPrefix, metas)
-	rawBytes = RenderSha1CurrentPattern(rawBytes, urlPrefix)
+	rawBytes = RenderSha1CurrentPattern(rawBytes, metas["repoLink"])
 	return rawBytes
 }
 
diff --git a/internal/markup/markup_test.go b/internal/markup/markup_test.go
index 911a597c..df6213e6 100644
--- a/internal/markup/markup_test.go
+++ b/internal/markup/markup_test.go
@@ -215,3 +215,41 @@ func Test_RenderIssueIndexPattern(t *testing.T) {
 		})
 	})
 }
+
+func TestRenderSha1CurrentPattern(t *testing.T) {
+	metas := map[string]string{
+		"repoLink": "/someuser/somerepo",
+	}
+
+	tests := []struct {
+		desc   string
+		input  string
+		prefix string
+		expVal string
+	}{
+		{
+			desc:   "Full SHA (40 symbols)",
+			input:  "ad8ced4f57d9068cb2874557245be3c7f341149d",
+			prefix: metas["repoLink"],
+			expVal: `<a href="/someuser/somerepo/commit/ad8ced4f57d9068cb2874557245be3c7f341149d"><code>ad8ced4f57</code></a>`,
+		},
+		{
+			desc:   "Short SHA (8 symbols)",
+			input:  "ad8ced4f",
+			prefix: metas["repoLink"],
+			expVal: `<a href="/someuser/somerepo/commit/ad8ced4f"><code>ad8ced4f</code></a>`,
+		},
+		{
+			desc:   "9 digits",
+			input:  "123456789",
+			prefix: metas["repoLink"],
+			expVal: "123456789",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.desc, func(t *testing.T) {
+			assert.Equal(t, test.expVal, string(RenderSha1CurrentPattern([]byte(test.input), test.prefix)))
+		})
+	}
+}