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Do not default to --no-index when given two directories.

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git-diff -- a/ b/ always defaulted to --no-index, primarily
because the function is_in_index() was implemented quite
incorrectly.

Noticed by Patrick Maaß and Simon Schubert independently,
initial patch was provided by Patrick but I fixed it
differently.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2007-04-13 03:23:20 -07:00
parent dc61b10d98
commit 1ad029b6a1
1 changed files with 25 additions and 9 deletions
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34
diff-lib.c
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@ -142,18 +142,34 @@ static int queue_diff(struct diff_options *o,
}
}
/*
* Does the path name a blob in the working tree, or a directory
* in the working tree?
*/
static int is_in_index(const char *path)
{
int len = strlen(path);
int pos = cache_name_pos(path, len);
char c;
int len, pos;
struct cache_entry *ce;
if (pos < 0)
return 0;
if (strncmp(active_cache[pos]->name, path, len))
return 0;
c = active_cache[pos]->name[len];
return c == '\0' || c == '/';
len = strlen(path);
while (path[len-1] == '/')
len--;
if (!len)
return 1; /* "." */
pos = cache_name_pos(path, len);
if (0 <= pos)
return 1;
pos = -1 - pos;
while (pos < active_nr) {
ce = active_cache[pos++];
if (ce_namelen(ce) <= len ||
strncmp(ce->name, path, len) ||
(ce->name[len] > '/'))
break; /* path cannot be a prefix */
if (ce->name[len] == '/')
return 1;
}
return 0;
}
static int handle_diff_files_args(struct rev_info *revs,