[PATCH v2 2/3] blame: honor core.abbrev

[Namhyung Kim <namhyung@gmail.com>]

If user sets config.abbrev option, use it as if --abbrev was given.
This is the default value and user can override different abbrev
length by specifing --abbrev=N command line option.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
---
 builtin/blame.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/builtin/blame.c b/builtin/blame.c
index 253b480..4639788 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -41,7 +41,7 @@ static int reverse;
 static int blank_boundary;
 static int incremental;
 static int xdl_opts;
-static int abbrev = 8;
+static int abbrev = -1;
 
 static enum date_mode blame_date_mode = DATE_ISO8601;
 static size_t blame_date_width;
@@ -2347,6 +2347,11 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 parse_done:
 	argc = parse_options_end(&ctx);
 
+	if (abbrev == -1)
+		abbrev = default_abbrev;
+	/* one more abbrev length is needed for the boundary commit */
+	abbrev++;
+
 	if (revs_file && read_ancestry(revs_file))
 		die_errno("reading graft file '%s' failed", revs_file);
 
-- 
1.7.4