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real_path(): properly handle nonexistent top-level paths

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The change has two points:

1. Do not strip off a leading slash, because that erroneously turns an
   absolute path into a relative path.

2. Do not remove slashes from groups of multiple slashes; instead let
   chdir() handle them.  It could be, for example, that it wants to
   leave leading double-slashes alone.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty 2012-09-07 00:41:03 +02:00 committed by Junio C Hamano
parent 7bcf48dad8
commit f4c21e89d7
2 changed files with 2 additions and 2 deletions
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2
abspath.c
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@ -45,8 +45,8 @@ const char *real_path(const char *path)
if (!is_directory(buf)) {
char *last_slash = find_last_dir_sep(buf);
if (last_slash) {
*last_slash = '\0';
last_elem = xstrdup(last_slash + 1);
last_slash[1] = '\0';
} else {
last_elem = xstrdup(buf);
*buf = '\0';

2
t/t0060-path-utils.sh
View File

@ -148,7 +148,7 @@ test_expect_success 'real path rejects the empty string' '
test_must_fail test-path-utils real_path ""
'
test_expect_failure POSIX 'real path works on absolute paths' '
test_expect_success POSIX 'real path works on absolute paths' '
nopath="hopefully-absent-path" &&
test "/" = "$(test-path-utils real_path "/")" &&
test "/$nopath" = "$(test-path-utils real_path "/$nopath")" &&