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setup: split off a function to handle hitting ceiling in repo search

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Perhaps some day, other similar conditions (hitting the mount point,
hitting the root of the file system) will share this code.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder 2010-07-24 06:26:41 -05:00 committed by Junio C Hamano
parent 68698da540
commit f161edebb6
1 changed files with 12 additions and 9 deletions
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21
setup.c
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@ -378,6 +378,16 @@ static const char *setup_bare_git_dir(const char *work_tree_env,
return NULL;
}
static const char *setup_nongit(const char *cwd, int *nongit_ok)
{
if (!nongit_ok)
die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT);
if (chdir(cwd))
die_errno("Cannot come back to cwd");
*nongit_ok = 1;
return NULL;
}
/*
* We cannot decide in this function whether we are in the work tree or
* not, since the config can only be read _after_ this function was called.
@ -443,15 +453,8 @@ const char *setup_git_directory_gently(int *nongit_ok)
return setup_bare_git_dir(work_tree_env, offset,
len, cwd, nongit_ok);
while (--offset > ceil_offset && cwd[offset] != '/');
if (offset <= ceil_offset) {
if (nongit_ok) {
if (chdir(cwd))
die_errno("Cannot come back to cwd");
*nongit_ok = 1;
return NULL;
}
die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT);
}
if (offset <= ceil_offset)
return setup_nongit(cwd, nongit_ok);
if (one_filesystem) {
if (stat("..", &buf)) {
cwd[offset] = '\0';