diff --no-index: support /dev/null as filename

This allows us to create "new file" and "delete file" patches.
It also cleans up the code.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Johannes Schindelin 2007-02-25 23:36:31 +01:00 committed by Junio C Hamano
parent 3afaa72d7d
commit 0c725f1bd9

View file

@ -30,28 +30,28 @@ static int read_directory(const char *path, struct path_list *list)
return 0;
}
static int get_mode(const char *path, int *mode)
{
struct stat st;
if (!path || !strcmp(path, "/dev/null"))
*mode = 0;
else if (!strcmp(path, "-"))
*mode = ntohl(create_ce_mode(0666));
else if (stat(path, &st))
return error("Could not access '%s'", path);
else
*mode = st.st_mode;
return 0;
}
static int queue_diff(struct diff_options *o,
const char *name1, const char *name2)
{
struct stat st;
int mode1 = 0, mode2 = 0;
if (name1) {
if (!strcmp(name1, "-"))
mode1 = ntohl(create_ce_mode(0666));
else if (stat(name1, &st))
return error("Could not access '%s'", name1);
else
mode1 = st.st_mode;
}
if (name2) {
if (!strcmp(name2, "-"))
mode2 = ntohl(create_ce_mode(0666));
else if (stat(name2, &st))
return error("Could not access '%s'", name2);
else
mode2 = st.st_mode;
}
if (get_mode(name1, &mode1) || get_mode(name2, &mode2))
return -1;
if (mode1 && mode2 && S_ISDIR(mode1) != S_ISDIR(mode2))
return error("file/directory conflict: %s, %s", name1, name2);