Dirk Mueller
9f3a373ebe
* https://raw.githubusercontent.com/git/git/master/Documentation/RelNotes/2.43.1.txt OBS-URL: https://build.opensuse.org/package/show/devel:tools:scm/git?expand=0&rev=634
68 lines
2.1 KiB
Diff
68 lines
2.1 KiB
Diff
From 37df7fd81c3dee990bd7723f18c94713a0d842b6 Mon Sep 17 00:00:00 2001
|
|
From: Michal Suchanek <msuchanek@suse.de>
|
|
Date: Fri, 15 Feb 2019 18:46:20 +0100
|
|
Subject: [PATCH] setup: don't fail if commondir reference is deleted.
|
|
|
|
Apparently it can happen that stat() claims there is a commondir file but when
|
|
trying to open the file it is missing.
|
|
|
|
Another even rarer issue is that the file might be zero size because another
|
|
process initializing a worktree opened the file but has not written is content
|
|
yet.
|
|
|
|
When any of this happnes git aborts failing to perform perfectly valid
|
|
command because unrelated worktree is not yet fully initialized.
|
|
|
|
Rather than testing if the file exists before reading it handle ENOENT
|
|
and ENOTDIR.
|
|
|
|
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
|
|
---
|
|
v2:
|
|
- do not test file existence first, just read it and handle ENOENT.
|
|
- handle zero size file correctly
|
|
v3:
|
|
- handle ENOTDIR as well
|
|
- add more details to commit message
|
|
---
|
|
setup.c | 16 +++++++++++-----
|
|
1 file changed, 11 insertions(+), 5 deletions(-)
|
|
|
|
Index: git-2.43.1/setup.c
|
|
===================================================================
|
|
--- git-2.43.1.orig/setup.c
|
|
+++ git-2.43.1/setup.c
|
|
@@ -316,12 +316,20 @@ int get_common_dir_noenv(struct strbuf *
|
|
{
|
|
struct strbuf data = STRBUF_INIT;
|
|
struct strbuf path = STRBUF_INIT;
|
|
- int ret = 0;
|
|
+ int ret;
|
|
|
|
strbuf_addf(&path, "%s/commondir", gitdir);
|
|
- if (file_exists(path.buf)) {
|
|
- if (strbuf_read_file(&data, path.buf, 0) <= 0)
|
|
+ ret = strbuf_read_file(&data, path.buf, 0);
|
|
+ if (ret <= 0) {
|
|
+ /*
|
|
+ * if file is missing or zero size (just being written)
|
|
+ * assume default, bail otherwise
|
|
+ */
|
|
+ if (ret && errno != ENOENT && errno != ENOTDIR)
|
|
die_errno(_("failed to read %s"), path.buf);
|
|
+ strbuf_addstr(sb, gitdir);
|
|
+ ret = 0;
|
|
+ } else {
|
|
while (data.len && (data.buf[data.len - 1] == '\n' ||
|
|
data.buf[data.len - 1] == '\r'))
|
|
data.len--;
|
|
@@ -332,8 +340,6 @@ int get_common_dir_noenv(struct strbuf *
|
|
strbuf_addbuf(&path, &data);
|
|
strbuf_add_real_path(sb, path.buf);
|
|
ret = 1;
|
|
- } else {
|
|
- strbuf_addstr(sb, gitdir);
|
|
}
|
|
|
|
strbuf_release(&data);
|