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| author | Taylor Blau <me@ttaylorr.com> | 2021-06-23 14:39:09 -0400 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2021-06-28 20:36:17 -0700 |
| commit | 15316a4732eeb0dab27ba406cb80e8704cb9b46d (patch) | |
| tree | 109d13e62b616781dd7147f4a401f214bbe3afcc /commit-graph.c | |
| parent | f9221e2cf5049805d9151b3db6a5eef07b1cc92e (diff) | |
| download | git-15316a4732eeb0dab27ba406cb80e8704cb9b46d.tar.gz | |
commit-graph: rewrite to use checksum_valid()
Rewrite an existing caller in `git commit-graph verify` to take
advantage of checksum_valid().
Note that the replacement isn't a verbatim cut-and-paste, since the new
function avoids using hashfile at all and instead talks to the_hash_algo
directly, but it is functionally equivalent.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'commit-graph.c')
| -rw-r--r-- | commit-graph.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/commit-graph.c b/commit-graph.c index 2bcb4e0f89..1a2602da61 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -2422,14 +2422,16 @@ static void graph_report(const char *fmt, ...) #define GENERATION_ZERO_EXISTS 1 #define GENERATION_NUMBER_EXISTS 2 +static int commit_graph_checksum_valid(struct commit_graph *g) +{ + return hashfile_checksum_valid(g->data, g->data_len); +} + int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags) { uint32_t i, cur_fanout_pos = 0; struct object_id prev_oid, cur_oid; - unsigned char checksum[GIT_MAX_HEXSZ]; int generation_zero = 0; - struct hashfile *f; - int devnull; struct progress *progress = NULL; int local_error = 0; @@ -2442,11 +2444,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags) if (verify_commit_graph_error) return verify_commit_graph_error; - devnull = open("/dev/null", O_WRONLY); - f = hashfd(devnull, NULL); - hashwrite(f, g->data, g->data_len - g->hash_len); - finalize_hashfile(f, checksum, CSUM_CLOSE); - if (!hasheq(checksum, g->data + g->data_len - g->hash_len)) { + if (!commit_graph_checksum_valid(g)) { graph_report(_("the commit-graph file has incorrect checksum and is likely corrupt")); verify_commit_graph_error = VERIFY_COMMIT_GRAPH_ERROR_HASH; } |