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Merge branch 'jk/maint-null-in-trees'

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We do not want a link to 0{40} object stored anywhere in our objects.

* jk/maint-null-in-trees:
  fsck: detect null sha1 in tree entries
  do not write null sha1s to on-disk index
  diff: do not use null sha1 as a sentinel value
This commit is contained in:
Junio C Hamano
2012-08-27 11:54:28 -07:00
parent b9148c3763 c479d14a80
commit 3b753148b6
18 changed files with 188 additions and 32 deletions
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16
diff.c
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@ -2541,12 +2541,12 @@ void free_filespec(struct diff_filespec *spec)
}
void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
unsigned short mode)
int sha1_valid, unsigned short mode)
{
if (mode) {
spec->mode = canon_mode(mode);
hashcpy(spec->sha1, sha1);
spec->sha1_valid = !is_null_sha1(sha1);
spec->sha1_valid = sha1_valid;
}
}
@ -4691,6 +4691,7 @@ static int is_submodule_ignored(const char *path, struct diff_options *options)
void diff_addremove(struct diff_options *options,
int addremove, unsigned mode,
const unsigned char *sha1,
int sha1_valid,
const char *concatpath, unsigned dirty_submodule)
{
struct diff_filespec *one, *two;
@ -4722,9 +4723,9 @@ void diff_addremove(struct diff_options *options,
two = alloc_filespec(concatpath);
if (addremove != '+')
fill_filespec(one, sha1, mode);
fill_filespec(one, sha1, sha1_valid, mode);
if (addremove != '-') {
fill_filespec(two, sha1, mode);
fill_filespec(two, sha1, sha1_valid, mode);
two->dirty_submodule = dirty_submodule;
}
@ -4737,6 +4738,7 @@ void diff_change(struct diff_options *options,
unsigned old_mode, unsigned new_mode,
const unsigned char *old_sha1,
const unsigned char *new_sha1,
int old_sha1_valid, int new_sha1_valid,
const char *concatpath,
unsigned old_dirty_submodule, unsigned new_dirty_submodule)
{
@ -4751,6 +4753,8 @@ void diff_change(struct diff_options *options,
const unsigned char *tmp_c;
tmp = old_mode; old_mode = new_mode; new_mode = tmp;
tmp_c = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_c;
tmp = old_sha1_valid; old_sha1_valid = new_sha1_valid;
new_sha1_valid = tmp;
tmp = old_dirty_submodule; old_dirty_submodule = new_dirty_submodule;
new_dirty_submodule = tmp;
}
@ -4761,8 +4765,8 @@ void diff_change(struct diff_options *options,
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
fill_filespec(one, old_sha1, old_mode);
fill_filespec(two, new_sha1, new_mode);
fill_filespec(one, old_sha1, old_sha1_valid, old_mode);
fill_filespec(two, new_sha1, new_sha1_valid, new_mode);
one->dirty_submodule = old_dirty_submodule;
two->dirty_submodule = new_dirty_submodule;