Stop handling mysterious gh: prefix in remote URLs

api/internal/git/repospec.go

@@ -234,10 +234,8 @@ func extractHost(n string) (string, string) {
 	n, _ = trimPrefixIgnoreCase(n, "git::")
 
 	scheme, n := extractScheme(n)
-	if scheme == "file://" || scheme == "gh:" {
+	if scheme == "file://" {
-		// We support gh: assuming authors use it as a github shorthand, specified in .gitconfig.
 		// The file protocol specifies an absolute path to a local git repo. There is no host.
-		// In both cases, we return the scheme and the rest of the url.
 		return scheme, n
 	}
 
@@ -264,7 +262,7 @@ func validHostSpecParsed(scheme, username, host string) bool {
 }
 
 func extractScheme(s string) (string, string) {
-	for _, prefix := range []string{"gh:", "ssh://", "https://", "http://", "file://"} {
+	for _, prefix := range []string{"ssh://", "https://", "http://", "file://"} {
 		if rest, found := trimPrefixIgnoreCase(s, prefix); found {
 			return prefix, rest
 		}

api/internal/git/repospec_test.go

@@ -19,8 +19,6 @@ func TestNewRepoSpecFromUrl_Permute(t *testing.T) {
 	// we probably stil don't want to break backwards compatibility for things
 	// that are unintentionally supported.
 	var schemeAuthority = []struct{ raw, normalized string }{
-		{"gh:", "gh:"},
-		{"GH:", "gh:"},
 		{"gitHub.com/", "https://github.com/"},
 		{"github.com:", "https://github.com/"},
 		{"http://github.com/", "https://github.com/"},
@@ -126,6 +124,10 @@ func TestNewRepoSpecFromUrlErrors(t *testing.T) {
 			"git@https://github.com/org/repo.git//path",
 			"url lacks host",
 		},
+		"mysterious gh: prefix previously supported is no longer handled": {
+			"gh:org/repo",
+			"url lacks orgRepo",
+		},
 	}
 
 	for name, testCase := range badData {

api/internal/localizer/util_test.go

@@ -226,10 +226,6 @@ func TestLocRootPath_URLComponents(t *testing.T) {
 			urlf: "file:///var/run/repo//%s?ref=value",
 			path: simpleJoin(t, FileSchemeDir, "var", "run", "repo", "value"),
 		},
-		"gh_shorthand": {
-			urlf: "gh:org/repo//%s?ref=value",
-			path: simpleJoin(t, "gh", "org", "repo", "value"),
-		},
 		"IPv6": {
 			urlf: "https://[2001:4860:4860::8888]/org/repo//%s?ref=value",
 			path: simpleJoin(t, "2001:4860:4860::8888", "org", "repo", "value"),