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diff: handle relative paths in no-index

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When diff-no-index is given a relative path to a file outside the
repository, it aborts with error. However, if the file is given
using an absolute path, the diff runs as expected. The two cases
should be treated the same.

Tests and commit message by Tim Henigan.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Tim Henigan <tim.henigan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2012-06-21 14:09:50 -04:00
committed by Junio C Hamano
parent 785ee4960c
commit 546e0fd9e9
4 changed files with 39 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
setup.c
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@ -4,7 +4,7 @@
static int inside_git_dir = -1;
static int inside_work_tree = -1;
char *prefix_path(const char *prefix, int len, const char *path)
static char *prefix_path_gently(const char *prefix, int len, const char *path)
{
const char *orig = path;
char *sanitized;
@ -31,7 +31,8 @@ char *prefix_path(const char *prefix, int len, const char *path)
if (strncmp(sanitized, work_tree, len) ||
(len > root_len && sanitized[len] != '\0' && sanitized[len] != '/')) {
error_out:
die("'%s' is outside repository", orig);
free(sanitized);
return NULL;
}
if (sanitized[len] == '/')
len++;
@ -40,6 +41,25 @@ char *prefix_path(const char *prefix, int len, const char *path)
return sanitized;
}
char *prefix_path(const char *prefix, int len, const char *path)
{
char *r = prefix_path_gently(prefix, len, path);
if (!r)
die("'%s' is outside repository", path);
return r;
}
int path_inside_repo(const char *prefix, const char *path)
{
int len = prefix ? strlen(prefix) : 0;
char *r = prefix_path_gently(prefix, len, path);
if (r) {
free(r);
return 1;
}
return 0;
}
int check_filename(const char *prefix, const char *arg)
{
const char *name;