[PATCH 6/8] git-repack --max-pack-size: write_one() implements limits

[Dana How <danahow@gmail.com>]

If --max-pack-size is specified,  generate the appropriate
write limit for each object and pass it to write_object().
Detect and return write "failure".

Signed-off-by: Dana L. How <danahow@gmail.com>
---
 builtin-pack-objects.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index d3ebe1d..b50de05 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -612,11 +612,17 @@ static off_t write_one(struct sha1file *f,
 		return offset;
 
 	/* if we are deltified, write out base object first. */
-	if (e->delta)
+	if (e->delta) {
 		offset = write_one(f, e->delta, offset);
+		if (!offset)
+			return 0;
+	}
 
 	e->offset = offset;
-	size = write_object(f, e, 0);
+	/* pass in write limit if limited packsize and not first object */
+	size = write_object(f, e, pack_size_limit && nr_written ? pack_size_limit - offset : 0);
+	if (!size)
+		return e->offset = 0;
 
 	/* make sure off_t is sufficiently large not to wrap */
 	if (offset > offset + size)
-- 
1.5.2.rc0.766.gba60-dirty