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git-apply: work from subdirectory.

When applying a patch to index file, we need to know where GIT_DIR is;
use setup_git_directory() to find it out.  This also allows us to work
from a subdirectory if we wanted to.

When git-apply is run from a subdirectory, it applies the given patch
only to the files under the current directory and below.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2005-11-25 23:14:15 -08:00
parent 4ca0660816
commit edf2e37002

18
apply.c
View File

@ -16,6 +16,9 @@
// --numstat does numeric diffstat, and doesn't actually apply
// --index-info shows the old and new index info for paths if available.
//
static const char *prefix;
static int prefix_length = -1;
static int allow_binary_replacement = 0;
static int check_index = 0;
static int write_index = 0;
@ -1706,6 +1709,12 @@ static int use_patch(struct patch *p)
return 0;
x = x->next;
}
if (0 < prefix_length) {
int pathlen = strlen(pathname);
if (pathlen <= prefix_length ||
memcmp(prefix, pathname, prefix_length))
return 0;
}
return 1;
}
@ -1845,6 +1854,15 @@ int main(int argc, char **argv)
line_termination = 0;
continue;
}
if (check_index && prefix_length < 0) {
prefix = setup_git_directory();
prefix_length = prefix ? strlen(prefix) : 0;
git_config(git_default_config);
}
if (0 < prefix_length)
arg = prefix_filename(prefix, prefix_length, arg);
fd = open(arg, O_RDONLY);
if (fd < 0)
usage(apply_usage);