[PATCH 5/5] fsck: improve committer/author check

[Dmitry Ivankov <divanorama@gmail.com>]

Neither name nor email should contain < or >, so split the string with
these and check they come in that order and < is preceeded with a space.

If < is missing don't say a confusing "missing space", say "bad name" if
> isn't missing and "missing email" if both < and > are missing.

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
---
 fsck.c          |   10 ++++++----
 t/t1450-fsck.sh |    4 ++--
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/fsck.c b/fsck.c
index 60bd4bb..6c855f8 100644
--- a/fsck.c
+++ b/fsck.c
@@ -224,13 +224,15 @@ static int fsck_tree(struct tree *item, int strict, fsck_error error_func)
 
 static int fsck_ident(char **ident, struct object *obj, fsck_error error_func)
 {
-	if (**ident == '<' || **ident == '\n')
-		return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing space before email");
-	*ident += strcspn(*ident, "<\n");
-	if ((*ident)[-1] != ' ')
+	if (**ident == '<')
 		return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing space before email");
+	*ident += strcspn(*ident, "<>\n");
+	if (**ident == '>')
+		return error_func(obj, FSCK_ERROR, "invalid author/committer line - bad name");
 	if (**ident != '<')
 		return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing email");
+	if ((*ident)[-1] != ' ')
+		return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing space before email");
 	(*ident)++;
 	*ident += strcspn(*ident, "<>\n");
 	if (**ident != '>')
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index fc7ee8e..0b92d0f 100755
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -110,7 +110,7 @@ test_expect_success 'email with embedded > is not okay' '
 	grep "error in commit $new" out
 '
 
-test_expect_failure 'missing < email delimiter is reported nicely' '
+test_expect_success 'missing < email delimiter is reported nicely' '
 	git cat-file commit HEAD >basis &&
 	sed "s/<//" basis >bad-email-2 &&
 	new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
@@ -122,7 +122,7 @@ test_expect_failure 'missing < email delimiter is reported nicely' '
 	grep "error in commit $new.* - bad name" out
 '
 
-test_expect_failure '> in name is reported' '
+test_expect_success '> in name is reported' '
 	git cat-file commit HEAD >basis &&
 	sed "s/ </> </" basis >bad-email-3 &&
 	new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
-- 
1.7.3.4