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index 3b111ea7cf5f68ecca085f5a56421ea190e1771a..ebd60de9ce5b52f348819a6a390c15b8dc08d2ff 100644 (file)
--- a/setup.c
+++ b/setup.c
static int inside_git_dir = -1;
static int inside_work_tree = -1;
-static int sanitary_path_copy(char *dst, const char *src)
-{
- char *dst0 = dst;
-
- if (*src == '/') {
- *dst++ = '/';
- while (*src == '/')
- src++;
- }
-
- for (;;) {
- char c = *src;
-
- /*
- * A path component that begins with . could be
- * special:
- * (1) "." and ends -- ignore and terminate.
- * (2) "./" -- ignore them, eat slash and continue.
- * (3) ".." and ends -- strip one and terminate.
- * (4) "../" -- strip one, eat slash and continue.
- */
- if (c == '.') {
- switch (src[1]) {
- case '\0':
- /* (1) */
- src++;
- break;
- case '/':
- /* (2) */
- src += 2;
- while (*src == '/')
- src++;
- continue;
- case '.':
- switch (src[2]) {
- case '\0':
- /* (3) */
- src += 2;
- goto up_one;
- case '/':
- /* (4) */
- src += 3;
- while (*src == '/')
- src++;
- goto up_one;
- }
- }
- }
-
- /* copy up to the next '/', and eat all '/' */
- while ((c = *src++) != '\0' && c != '/')
- *dst++ = c;
- if (c == '/') {
- *dst++ = c;
- while (c == '/')
- c = *src++;
- src--;
- } else if (!c)
- break;
- continue;
-
- up_one:
- /*
- * dst0..dst is prefix portion, and dst[-1] is '/';
- * go up one level.
- */
- dst -= 2; /* go past trailing '/' if any */
- if (dst < dst0)
- return -1;
- while (1) {
- if (dst <= dst0)
- break;
- c = *dst--;
- if (c == '/') {
- dst += 2;
- break;
- }
- }
- }
- *dst = '\0';
- return 0;
-}
-
const char *prefix_path(const char *prefix, int len, const char *path)
{
const char *orig = path;
memcpy(sanitized, prefix, len);
strcpy(sanitized + len, path);
}
- if (sanitary_path_copy(sanitized, sanitized))
+ if (normalize_path_copy(sanitized, sanitized))
goto error_out;
if (is_absolute_path(orig)) {
const char *work_tree = get_git_work_tree();
if (strncmp(sanitized, work_tree, len) ||
(sanitized[len] != '\0' && sanitized[len] != '/')) {
error_out:
- error("'%s' is outside repository", orig);
- free(sanitized);
- return NULL;
+ die("'%s' is outside repository", orig);
}
if (sanitized[len] == '/')
len++;
const char *prefix_filename(const char *pfx, int pfx_len, const char *arg)
{
static char path[PATH_MAX];
+#ifndef __MINGW32__
if (!pfx || !*pfx || is_absolute_path(arg))
return arg;
memcpy(path, pfx, pfx_len);
strcpy(path + pfx_len, arg);
+#else
+ char *p;
+ /* don't add prefix to absolute paths, but still replace '\' by '/' */
+ if (is_absolute_path(arg))
+ pfx_len = 0;
+ else
+ memcpy(path, pfx, pfx_len);
+ strcpy(path + pfx_len, arg);
+ for (p = path + pfx_len; *p; p++)
+ if (*p == '\\')
+ *p = '/';
+#endif
return path;
}
prefixlen = prefix ? strlen(prefix) : 0;
while (*src) {
const char *p = prefix_path(prefix, prefixlen, *src);
- if (p)
- *(dst++) = p;
- else
- exit(128); /* error message already given */
+ *(dst++) = p;
src++;
}
*dst = NULL;
const char *setup_git_directory_gently(int *nongit_ok)
{
const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT);
+ const char *env_ceiling_dirs = getenv(CEILING_DIRECTORIES_ENVIRONMENT);
static char cwd[PATH_MAX+1];
const char *gitdirenv;
const char *gitfile_dir;
- int len, offset;
+ int len, offset, ceil_offset;
/*
* Let's assume that we are in a git repository.
if (!getcwd(cwd, sizeof(cwd)-1))
die("Unable to read current working directory");
+ ceil_offset = longest_ancestor_length(cwd, env_ceiling_dirs);
+ if (ceil_offset < 0 && has_dos_drive_prefix(cwd))
+ ceil_offset = 1;
+
/*
* Test in the following order (relative to the cwd):
* - .git (file containing "gitdir: <path>")
inside_git_dir = 1;
if (!work_tree_env)
inside_work_tree = 0;
- setenv(GIT_DIR_ENVIRONMENT, ".", 1);
+ if (offset != len) {
+ cwd[offset] = '\0';
+ setenv(GIT_DIR_ENVIRONMENT, cwd, 1);
+ } else
+ setenv(GIT_DIR_ENVIRONMENT, ".", 1);
check_repository_format_gently(nongit_ok);
return NULL;
}
- chdir("..");
- do {
- if (!offset) {
- if (nongit_ok) {
- if (chdir(cwd))
- die("Cannot come back to cwd");
- *nongit_ok = 1;
- return NULL;
- }
- die("Not a git repository");
+ while (--offset > ceil_offset && cwd[offset] != '/');
+ if (offset <= ceil_offset) {
+ if (nongit_ok) {
+ if (chdir(cwd))
+ die("Cannot come back to cwd");
+ *nongit_ok = 1;
+ return NULL;
}
- } while (cwd[--offset] != '/');
+ die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT);
+ }
+ if (chdir(".."))
+ die("Cannot change to %s/..: %s", cwd, strerror(errno));
}
inside_git_dir = 0;
/*
* Treat values 0, 1 and 2 as compatibility cases, otherwise it is
- * a chmod value.
+ * a chmod value to restrict to.
*/
switch (i) {
case PERM_UMASK: /* 0 */
* Mask filemode value. Others can not get write permission.
* x flags for directories are handled separately.
*/
- return i & 0666;
+ return -(i & 0666);
}
int check_repository_format_version(const char *var, const char *value, void *cb)
if (retval && chdir(retval))
die ("Could not jump back into original cwd");
rel = get_relative_cwd(buffer, PATH_MAX, get_git_work_tree());
+ if (rel && *rel && chdir(get_git_work_tree()))
+ die ("Could not jump to working directory");
return rel && *rel ? strcat(rel, "/") : NULL;
}