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authorLinus Torvalds <torvalds@g5.osdl.org>2005-07-27 16:08:43 -0700
committerJunio C Hamano <junkio@cox.net>2005-07-27 18:57:14 -0700
commit64071805eda2b57d2b77943bb3f9865d90562ecf (patch)
treef716258e3fd266b5c917765ba56ae1a6a5a6a8f0
parent4e81304afc529c0caca7c012a155be4e342b52d4 (diff)
downloadgit-64071805eda2b57d2b77943bb3f9865d90562ecf.tar.gz
git-fsck-cache: be stricter about "tree" objects
In particular, warn about things like zero-padding of the mode bits, which is a big no-no, since it makes otherwise identical trees have different representations (and thus different SHA1 numbers). Also make the warnings more regular. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fsck-cache.c47
-rw-r--r--tree.c1
-rw-r--r--tree.h1
3 files changed, 37 insertions, 12 deletions
diff --git a/fsck-cache.c b/fsck-cache.c
index c6603919cb..6115514d4f 100644
--- a/fsck-cache.c
+++ b/fsck-cache.c
@@ -109,13 +109,19 @@ static int verify_ordered(struct tree_entry_list *a, struct tree_entry_list *b)
static int fsck_tree(struct tree *item)
{
+ int retval;
int has_full_path = 0;
+ int has_zero_pad = 0;
+ int has_bad_modes = 0;
+ int has_dup_entries = 0;
+ int not_properly_sorted = 0;
struct tree_entry_list *entry, *last;
last = NULL;
for (entry = item->entries; entry; entry = entry->next) {
if (strchr(entry->name, '/'))
has_full_path = 1;
+ has_zero_pad |= entry->zeropad;
switch (entry->mode) {
/*
@@ -135,22 +141,17 @@ static int fsck_tree(struct tree *item)
if (!check_strict)
break;
default:
- printf("tree %s has entry %o %s\n",
- sha1_to_hex(item->object.sha1),
- entry->mode, entry->name);
+ has_bad_modes = 1;
}
if (last) {
switch (verify_ordered(last, entry)) {
case TREE_UNORDERED:
- fprintf(stderr, "tree %s not ordered\n",
- sha1_to_hex(item->object.sha1));
- return -1;
+ not_properly_sorted = 1;
+ break;
case TREE_HAS_DUPS:
- fprintf(stderr, "tree %s has duplicate entries for '%s'\n",
- sha1_to_hex(item->object.sha1),
- entry->name);
- return -1;
+ has_dup_entries = 1;
+ break;
default:
break;
}
@@ -159,13 +160,35 @@ static int fsck_tree(struct tree *item)
last = entry;
}
+ retval = 0;
if (has_full_path) {
fprintf(stderr, "warning: git-fsck-cache: tree %s "
"has full pathnames in it\n",
sha1_to_hex(item->object.sha1));
}
-
- return 0;
+ if (has_zero_pad) {
+ fprintf(stderr, "warning: git-fsck-cache: tree %s "
+ "has zero-padded file modes in it\n",
+ sha1_to_hex(item->object.sha1));
+ }
+ if (has_bad_modes) {
+ fprintf(stderr, "warning: git-fsck-cache: tree %s "
+ "has bad file modes in it\n",
+ sha1_to_hex(item->object.sha1));
+ }
+ if (has_dup_entries) {
+ fprintf(stderr, "error: git-fsck-cache: tree %s "
+ "has duplicate file entries\n",
+ sha1_to_hex(item->object.sha1));
+ retval = -1;
+ }
+ if (not_properly_sorted) {
+ fprintf(stderr, "error: git-fsck-cache: tree %s "
+ "is not properly sorted\n",
+ sha1_to_hex(item->object.sha1));
+ retval = -1;
+ }
+ return retval;
}
static int fsck_commit(struct commit *commit)
diff --git a/tree.c b/tree.c
index dabc2e7a2c..8f490b8984 100644
--- a/tree.c
+++ b/tree.c
@@ -167,6 +167,7 @@ int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size)
entry->directory = S_ISDIR(mode) != 0;
entry->executable = (mode & S_IXUSR) != 0;
entry->symlink = S_ISLNK(mode) != 0;
+ entry->zeropad = *(char *)bufptr == '0';
entry->mode = mode;
entry->next = NULL;
diff --git a/tree.h b/tree.h
index 74fe09d763..ae61bcca6e 100644
--- a/tree.h
+++ b/tree.h
@@ -10,6 +10,7 @@ struct tree_entry_list {
unsigned directory : 1;
unsigned executable : 1;
unsigned symlink : 1;
+ unsigned zeropad : 1;
unsigned int mode;
char *name;
union {