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[PATCH 3/5] Fix GIT_CEILING_DIRECTORIES on Windows

From
Johannes Sixt <j6t@kdbg.org>
Date
Feb 7, 2009, 15:08 UTC
Message-ID
<1234019311-6449-4-git-send-email-j6t@kdbg.org>
In-Reply-To
<1234019311-6449-3-git-send-email-j6t@kdbg.org>
From: René Scharfe <rene.scharfe@lsrfire.ath.cx>

Using git with GIT_CEILING_DIRECTORIES crashed on Windows due to a failed assertion in normalize_absolute_path(): This function expects absolute paths to start with a slash, while on Windows they can start with a drive letter or a backslash.

This fixes it by using the alternative, normalize_path_copy() instead, which can handle Windows-style paths just fine.

Secondly, the portability macro PATH_SEP is used instead of expecting colons to be used as path list delimiter.

The test script t1504 is also changed to help MSYS's bash recognize some program arguments as path list. (MSYS's bash must translate POSIX-style path lists to Windows-style path lists, and the heuristic did not catch some cases.)

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
---
	I have adjusted the patch to fit into the series.
	I modified the commit message to pretend that the goal was
	to fix a feature instead of the test case ;) Hope that is
	fine with you.
	-- Hannes
 path.c                  |   11 ++++++-----
 t/t1504-ceiling-dirs.sh |    6 +++---
 2 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/path.c b/path.c
index d0a3519..dc3807a 100644
--- a/path.c
+++ b/path.c
@@ -524,15 +524,16 @@ int longest_ancestor_length(const char *path, const char *prefix_list)
 		return -1;
 
 	for (colon = ceil = prefix_list; *colon; ceil = colon+1) {
-		for (colon = ceil; *colon && *colon != ':'; colon++);
+		for (colon = ceil; *colon && *colon != PATH_SEP; colon++);
 		len = colon - ceil;
 		if (len == 0 || len > PATH_MAX || !is_absolute_path(ceil))
 			continue;
 		strlcpy(buf, ceil, len+1);
-		len = normalize_absolute_path(buf, buf);
-		/* Strip "trailing slashes" from "/". */
-		if (len == 1)
-			len = 0;
+		if (normalize_path_copy(buf, buf) < 0)
+			continue;
+		len = strlen(buf);
+		if (len > 0 && buf[len-1] == '/')
+			buf[--len] = '\0';
 
 		if (!strncmp(path, buf, len) &&
 		    path[len] == '/' &&
diff --git a/t/t1504-ceiling-dirs.sh b/t/t1504-ceiling-dirs.sh
index 91b704a..e377d48 100755
--- a/t/t1504-ceiling-dirs.sh
+++ b/t/t1504-ceiling-dirs.sh
@@ -93,13 +93,13 @@ GIT_CEILING_DIRECTORIES="$TRASH_ROOT/subdi"
 test_prefix subdir_ceil_at_subdi_slash "sub/dir/"
 
 
-GIT_CEILING_DIRECTORIES="foo:$TRASH_ROOT/sub"
+GIT_CEILING_DIRECTORIES="/foo:$TRASH_ROOT/sub"
 test_fail second_of_two
 
-GIT_CEILING_DIRECTORIES="$TRASH_ROOT/sub:bar"
+GIT_CEILING_DIRECTORIES="$TRASH_ROOT/sub:/bar"
 test_fail first_of_two
 
-GIT_CEILING_DIRECTORIES="foo:$TRASH_ROOT/sub:bar"
+GIT_CEILING_DIRECTORIES="/foo:$TRASH_ROOT/sub:/bar"
 test_fail second_of_three
 
 
-- 
1.6.1.297.g9b01e
Previous: Johannes SixtNext: Johannes Sixt
Message 19 of 26 in “fix crash in path.c on Windows”
  1. fix crash in path.c on WindowsRené Scharfe, Feb 4, 2009
  2. Junio C HamanoFeb 4, 2009
  3. Johannes SixtFeb 5, 2009
  4. René ScharfeFeb 5, 2009
  5. Johannes SixtFeb 5, 2009
  6. Robin RosenbergFeb 5, 2009
  7. fix t1504 on WindowsRené Scharfe, Feb 5, 2009
  8. Johannes SixtFeb 6, 2009
  9. Johannes SchindelinFeb 6, 2009
  10. Johannes SixtFeb 6, 2009
  11. Johannes SchindelinFeb 6, 2009
  12. Johannes SixtFeb 6, 2009
  13. René ScharfeFeb 6, 2009
  14. Johannes SixtFeb 6, 2009
  15. René ScharfeFeb 6, 2009
  16. 0/5 Consolidate path normalization functionsJohannes Sixt, Feb 7, 2009
  17. 1/5 Make test-path-utils more robust against incorrect useJohannes Sixt, Feb 7, 2009
  18. 2/5 Move sanitary_path_copy() to path.c and rename it to normalize_path_copy()Johannes Sixt, Feb 7, 2009
  19. 3/5 Fix GIT_CEILING_DIRECTORIES on WindowsJohannes Sixt, Feb 7, 2009
  20. 4/5 Test and fix normalize_path_copy()Johannes Sixt, Feb 7, 2009
  21. 5/5 Remove unused normalize_absolute_path()Johannes Sixt, Feb 7, 2009
  22. Robin RosenbergFeb 8, 2009
  23. Johannes SixtFeb 8, 2009
  24. René ScharfeFeb 8, 2009
  25. Johannes SixtFeb 8, 2009
  26. René ScharfeFeb 7, 2009

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