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path.c: add git_common_path() and strbuf_git_common_path()

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These are mostly convenient functions to reduce code duplication. Most
of the time, we should be able to get by with git_path() which handles
$GIT_COMMON_DIR internally. However there are a few cases where we need
to construct paths manually, for example some paths from a specific
worktree. These functions will enable that.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2016-04-22 20:01:25 +07:00 committed by Junio C Hamano
parent ba0897e6ae
commit 15cdfea734
2 changed files with 32 additions and 0 deletions
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3
cache.h
View File

@ -799,11 +799,14 @@ extern void check_repository_format(void);
*/
extern const char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
extern const char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
extern const char *git_common_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
__attribute__((format (printf, 3, 4)));
extern void strbuf_git_path(struct strbuf *sb, const char *fmt, ...)
__attribute__((format (printf, 2, 3)));
extern void strbuf_git_common_path(struct strbuf *sb, const char *fmt, ...)
__attribute__((format (printf, 2, 3)));
extern char *git_path_buf(struct strbuf *buf, const char *fmt, ...)
__attribute__((format (printf, 2, 3)));
extern void strbuf_git_path_submodule(struct strbuf *sb, const char *path,

29
path.c
View File

@ -503,6 +503,35 @@ void strbuf_git_path_submodule(struct strbuf *buf, const char *path,
va_end(args);
}
static void do_git_common_path(struct strbuf *buf,
const char *fmt,
va_list args)
{
strbuf_addstr(buf, get_git_common_dir());
if (buf->len && !is_dir_sep(buf->buf[buf->len - 1]))
strbuf_addch(buf, '/');
strbuf_vaddf(buf, fmt, args);
strbuf_cleanup_path(buf);
}
const char *git_common_path(const char *fmt, ...)
{
struct strbuf *pathname = get_pathname();
va_list args;
va_start(args, fmt);
do_git_common_path(pathname, fmt, args);
va_end(args);
return pathname->buf;
}
void strbuf_git_common_path(struct strbuf *sb, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
do_git_common_path(sb, fmt, args);
va_end(args);
}
int validate_headref(const char *path)
{
struct stat st;