[PATCH 4/4 v2] builtin-fsck: reports missing parent commits
From: Martin Koegler <hidden>
Date: 2016-06-15 22:44:16
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: Martin Koegler <redacted> --- Sorry, I found a bug in the last version. builtin-fsck.c | 24 ++++++++++++++++++++++++ commit.c | 2 +- commit.h | 1 + 3 files changed, 26 insertions(+), 1 deletions(-)
diff --git a/builtin-fsck.c b/builtin-fsck.c
index 512346a..98d81d9 100644
--- a/builtin-fsck.c
+++ b/builtin-fsck.c@@ -394,6 +394,8 @@ static int fsck_commit(struct commit *commit) { char *buffer = commit->buffer; unsigned char tree_sha1[20], sha1[20]; + struct commit_graft *graft; + int parents = 0; if (verbose) fprintf(stderr, "Checking commit %s\n",
@@ -411,6 +413,28 @@ static int fsck_commit(struct commit *commit) if (get_sha1_hex(buffer+7, sha1) || buffer[47] != '\n') return objerror(&commit->object, "invalid 'parent' line format - bad sha1"); buffer += 48; + parents++; + } + graft = lookup_commit_graft(commit->object.sha1); + if (graft) { + struct commit_list *p = commit->parents; + parents = 0; + while (p && parents) { + p = p->next; + parents++; + } + if (graft->nr_parent == -1 && !parents) + ; /* shallow commit */ + else if (graft->nr_parent != parents) + return objerror(&commit->object, "graft objects missing"); + } else { + struct commit_list *p = commit->parents; + while (p && parents) { + p = p->next; + parents--; + } + if (p || parents) + return objerror(&commit->object, "parent objects missing"); } if (memcmp(buffer, "author ", 7)) return objerror(&commit->object, "invalid format - expected 'author' line");
diff --git a/commit.c b/commit.c
index 6684c4e..94d5b3d 100644
--- a/commit.c
+++ b/commit.c@@ -193,7 +193,7 @@ static void prepare_commit_graft(void) commit_graft_prepared = 1; } -static struct commit_graft *lookup_commit_graft(const unsigned char *sha1) +struct commit_graft *lookup_commit_graft(const unsigned char *sha1) { int pos; prepare_commit_graft();
diff --git a/commit.h b/commit.h
index 80d65b9..a1e9591 100644
--- a/commit.h
+++ b/commit.h@@ -116,6 +116,7 @@ struct commit_graft { struct commit_graft *read_graft_line(char *buf, int len); int register_commit_graft(struct commit_graft *, int); int read_graft_file(const char *graft_file); +struct commit_graft *lookup_commit_graft(const unsigned char *sha1); extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup);
--
1.5.4.2.g12981.dirty