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[PATCH 1/2] sha1_name: fix error message for @{u}

From
Ramkumar Ramachandra <artagnon@gmail.com>
Date
May 21, 2013, 10:41 UTC
Message-ID
<1369132915-25657-2-git-send-email-artagnon@gmail.com>
In-Reply-To
<1369132915-25657-1-git-send-email-artagnon@gmail.com>

Currently, when no (valid) upstream is configured for a branch, we get an error like:

  $ git show @{u}
  error: No upstream configured for branch 'upstream-error'
  error: No upstream configured for branch 'upstream-error'
  fatal: ambiguous argument '@{u}': unknown revision or path not in the working tree.
  Use '--' to separate paths from revisions, like this:
  'git <command> [<revision>...] -- [<file>...]'

The "error: " line actually appears twice, and the rest of the error message is useless. In sha1_name.c:interpret_branch_name(), there is really no point in processing further if @{u} couldn't be resolved, and we might as well die() instead of returning an error(). After making this change, you get:

  $ git show @{u}
  fatal: No upstream configured for branch 'upstream-error'
Also tweak a few tests in t1507 to expect this output.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
 sha1_name.c                   | 13 +++++++------
 t/t1507-rev-parse-upstream.sh | 15 +++++----------
 2 files changed, 12 insertions(+), 16 deletions(-)
diff --git a/sha1_name.c b/sha1_name.c
index 3820f28..416a673 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -1033,14 +1033,15 @@ int interpret_branch_name(const char *name, struct strbuf *buf)
 	 * points to something different than a branch.
 	 */
 	if (!upstream)
-		return error(_("HEAD does not point to a branch"));
+		die(_("HEAD does not point to a branch"));
 	if (!upstream->merge || !upstream->merge[0]->dst) {
 		if (!ref_exists(upstream->refname))
-			return error(_("No such branch: '%s'"), cp);
-		if (!upstream->merge)
-			return error(_("No upstream configured for branch '%s'"),
-				     upstream->name);
-		return error(
+			die(_("No such branch: '%s'"), cp);
+		if (!upstream->merge) {
+			die(_("No upstream configured for branch '%s'"),
+				upstream->name);
+		}
+		die(
 			_("Upstream branch '%s' not stored as a remote-tracking branch"),
 			upstream->merge[0]->src);
 	}
diff --git a/t/t1507-rev-parse-upstream.sh b/t/t1507-rev-parse-upstream.sh
index b27a720..2a19e79 100755
--- a/t/t1507-rev-parse-upstream.sh
+++ b/t/t1507-rev-parse-upstream.sh
@@ -129,8 +129,7 @@ test_expect_success 'branch@{u} works when tracking a local branch' '
 
 test_expect_success 'branch@{u} error message when no upstream' '
 	cat >expect <<-EOF &&
-	error: No upstream configured for branch ${sq}non-tracking${sq}
-	fatal: Needed a single revision
+	fatal: No upstream configured for branch ${sq}non-tracking${sq}
 	EOF
 	error_message non-tracking@{u} 2>actual &&
 	test_i18ncmp expect actual
@@ -138,8 +137,7 @@ test_expect_success 'branch@{u} error message when no upstream' '
 
 test_expect_success '@{u} error message when no upstream' '
 	cat >expect <<-EOF &&
-	error: No upstream configured for branch ${sq}master${sq}
-	fatal: Needed a single revision
+	fatal: No upstream configured for branch ${sq}master${sq}
 	EOF
 	test_must_fail git rev-parse --verify @{u} 2>actual &&
 	test_i18ncmp expect actual
@@ -147,8 +145,7 @@ test_expect_success '@{u} error message when no upstream' '
 
 test_expect_success 'branch@{u} error message with misspelt branch' '
 	cat >expect <<-EOF &&
-	error: No such branch: ${sq}no-such-branch${sq}
-	fatal: Needed a single revision
+	fatal: No such branch: ${sq}no-such-branch${sq}
 	EOF
 	error_message no-such-branch@{u} 2>actual &&
 	test_i18ncmp expect actual
@@ -156,8 +153,7 @@ test_expect_success 'branch@{u} error message with misspelt branch' '
 
 test_expect_success '@{u} error message when not on a branch' '
 	cat >expect <<-EOF &&
-	error: HEAD does not point to a branch
-	fatal: Needed a single revision
+	fatal: HEAD does not point to a branch
 	EOF
 	git checkout HEAD^0 &&
 	test_must_fail git rev-parse --verify @{u} 2>actual &&
@@ -166,8 +162,7 @@ test_expect_success '@{u} error message when not on a branch' '
 
 test_expect_success 'branch@{u} error message if upstream branch not fetched' '
 	cat >expect <<-EOF &&
-	error: Upstream branch ${sq}refs/heads/side${sq} not stored as a remote-tracking branch
-	fatal: Needed a single revision
+	fatal: Upstream branch ${sq}refs/heads/side${sq} not stored as a remote-tracking branch
 	EOF
 	error_message bad-upstream@{u} 2>actual &&
 	test_i18ncmp expect actual
-- 
1.8.3.rc3.6.ga9126d5.dirty
Previous: Ramkumar RamachandraNext: Junio C Hamano
Message 2 of 19 in “Fix invalid revision error messages for 1.8.3”
  1. 0/2 Fix invalid revision error messages for 1.8.3Ramkumar Ramachandra, May 21, 2013
  2. 1/2 sha1_name: fix error message for @{u}Ramkumar Ramachandra, May 21, 2013
  3. Junio C HamanoMay 21, 2013
  4. Ramkumar RamachandraMay 21, 2013
  5. Junio C HamanoMay 21, 2013
  6. Ramkumar RamachandraMay 21, 2013
  7. Junio C HamanoMay 21, 2013
  8. Ramkumar RamachandraMay 21, 2013
  9. Junio C HamanoMay 21, 2013
  10. Ramkumar RamachandraMay 21, 2013
  11. Junio C HamanoMay 21, 2013
  12. 2/2 sha1_name: fix error message for @{<N>}, @{<date>}Ramkumar Ramachandra, May 21, 2013
  13. Junio C HamanoMay 21, 2013
  14. Kevin BraceyMay 21, 2013
  15. Ramkumar RamachandraMay 21, 2013
  16. Junio C HamanoMay 21, 2013
  17. Ramkumar RamachandraMay 21, 2013
  18. Junio C HamanoMay 21, 2013
  19. Ramkumar RamachandraMay 21, 2013

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