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author | SZEDER Gábor <szeder.dev@gmail.com> | 2019-08-05 11:02:40 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2019-08-06 00:33:39 +0300 |
commit | 7c5c9b9c57d58273d17dfc3fec3ebdb25077a9de (patch) | |
tree | 4ec3d2ce70ce0f3ee4bbd4d68de7a7fe82ea0b2e /commit-graph.c | |
parent | 39d88318569188c0544c3c0f8207f2e1b1829e60 (diff) |
commit-graph: error out on invalid commit oids in 'write --stdin-commits'
While 'git commit-graph write --stdin-commits' expects commit object
ids as input, it accepts and silently skips over any invalid commit
object ids, and still exits with success:
# nonsense
$ echo not-a-commit-oid | git commit-graph write --stdin-commits
$ echo $?
0
# sometimes I forgot that refs are not good...
$ echo HEAD | git commit-graph write --stdin-commits
$ echo $?
0
# valid tree OID, but not a commit OID
$ git rev-parse HEAD^{tree} | git commit-graph write --stdin-commits
$ echo $?
0
$ ls -l .git/objects/info/commit-graph
ls: cannot access '.git/objects/info/commit-graph': No such file or directory
Check that all input records are indeed valid commit object ids and
return with error otherwise, the same way '--stdin-packs' handles
invalid input; see e103f7276f (commit-graph: return with errors during
write, 2019-06-12).
Note that it should only return with error when encountering an
invalid commit object id coming from standard input. However,
'--reachable' uses the same code path to process object ids pointed to
by all refs, and that includes tag object ids as well, which should
still be skipped over. Therefore add a new flag to 'enum
commit_graph_write_flags' and a corresponding field to 'struct
write_commit_graph_context', so we can differentiate between those two
cases.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'commit-graph.c')
-rw-r--r-- | commit-graph.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/commit-graph.c b/commit-graph.c index 04324a4648..821900675b 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -782,7 +782,8 @@ struct write_commit_graph_context { unsigned append:1, report_progress:1, - split:1; + split:1, + check_oids:1; const struct split_commit_graph_opts *split_opts; }; @@ -1193,8 +1194,8 @@ static int fill_oids_from_packs(struct write_commit_graph_context *ctx, return 0; } -static void fill_oids_from_commit_hex(struct write_commit_graph_context *ctx, - struct string_list *commit_hex) +static int fill_oids_from_commit_hex(struct write_commit_graph_context *ctx, + struct string_list *commit_hex) { uint32_t i; struct strbuf progress_title = STRBUF_INIT; @@ -1215,20 +1216,21 @@ static void fill_oids_from_commit_hex(struct write_commit_graph_context *ctx, struct commit *result; display_progress(ctx->progress, i + 1); - if (commit_hex->items[i].string && - parse_oid_hex(commit_hex->items[i].string, &oid, &end)) - continue; - - result = lookup_commit_reference_gently(ctx->r, &oid, 1); - - if (result) { + if (!parse_oid_hex(commit_hex->items[i].string, &oid, &end) && + (result = lookup_commit_reference_gently(ctx->r, &oid, 1))) { ALLOC_GROW(ctx->oids.list, ctx->oids.nr + 1, ctx->oids.alloc); oidcpy(&ctx->oids.list[ctx->oids.nr], &(result->object.oid)); ctx->oids.nr++; + } else if (ctx->check_oids) { + error(_("invalid commit object id: %s"), + commit_hex->items[i].string); + return -1; } } stop_progress(&ctx->progress); strbuf_release(&progress_title); + + return 0; } static void fill_oids_from_all_packs(struct write_commit_graph_context *ctx) @@ -1775,6 +1777,7 @@ int write_commit_graph(const char *obj_dir, ctx->append = flags & COMMIT_GRAPH_WRITE_APPEND ? 1 : 0; ctx->report_progress = flags & COMMIT_GRAPH_WRITE_PROGRESS ? 1 : 0; ctx->split = flags & COMMIT_GRAPH_WRITE_SPLIT ? 1 : 0; + ctx->check_oids = flags & COMMIT_GRAPH_WRITE_CHECK_OIDS ? 1 : 0; ctx->split_opts = split_opts; if (ctx->split) { @@ -1829,8 +1832,10 @@ int write_commit_graph(const char *obj_dir, goto cleanup; } - if (commit_hex) - fill_oids_from_commit_hex(ctx, commit_hex); + if (commit_hex) { + if ((res = fill_oids_from_commit_hex(ctx, commit_hex))) + goto cleanup; + } if (!pack_indexes && !commit_hex) fill_oids_from_all_packs(ctx); |