[PATCH 1/3] Refactoring: Split up diff_tree_stdin

From

Karl Hasselström <kha@treskal.com>

Date

Aug 8, 2008, 20:48 UTC

Message-ID

<20080808204823.7744.57203.stgit@yoghurt>

In-Reply-To

<20080808204348.7744.46006.stgit@yoghurt>

Signed-off-by: Karl Hasselström <kha@treskal.com>

---

 builtin-diff-tree.c |   31 +++++++++++++++++++------------
 1 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/builtin-diff-tree.c b/builtin-diff-tree.c
index 415cb16..ebbd631 100644
--- a/builtin-diff-tree.c
+++ b/builtin-diff-tree.c
@@ -14,20 +14,10 @@ static int diff_tree_commit_sha1(const unsigned char *sha1)
 	return log_tree_commit(&log_tree_opt, commit);
 }
 
-static int diff_tree_stdin(char *line)
+/* Diff one or more commits. */
+static int stdin_diff_commit(struct commit *commit, char *line, int len)
 {
-	int len = strlen(line);
 	unsigned char sha1[20];
-	struct commit *commit;
-
-	if (!len || line[len-1] != '\n')
-		return -1;
-	line[len-1] = 0;
-	if (get_sha1_hex(line, sha1))
-		return -1;
-	commit = lookup_commit(sha1);
-	if (!commit || parse_commit(commit))
-		return -1;
 	if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) {
 		/* Graft the fake parents locally to the commit */
 		int pos = 41;
@@ -52,6 +42,23 @@ static int diff_tree_stdin(char *line)
 	return log_tree_commit(&log_tree_opt, commit);
 }
 
+static int diff_tree_stdin(char *line)
+{
+	int len = strlen(line);
+	unsigned char sha1[20];
+	struct commit *commit;
+
+	if (!len || line[len-1] != '\n')
+		return -1;
+	line[len-1] = 0;
+	if (get_sha1_hex(line, sha1))
+		return -1;
+	commit = lookup_commit(sha1);
+	if (!commit || parse_commit(commit))
+		return -1;
+	return stdin_diff_commit(commit, line, len);
+}
+
 static const char diff_tree_usage[] =
 "git diff-tree [--stdin] [-m] [-c] [--cc] [-s] [-v] [--pretty] [-t] [-r] [--root] "
 "[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]\n"