There are a few places that use these values, so define constants for
them.
Signed-off-by: Michael Haggerty <mhag...@alum.mit.edu>
---
If I were confident that it would always be inlined, I would have
used
#define LOCK_SUFFIX_LEN strlen(LOCK_SUFFIX)
Or maybe even have omitted this constant and write strlen(LOCK_SUFFIX)
inline where it is needed instead. But I'm not so I didn't.
It's possible I missed other code that uses ".lock" or the magic
number 5, but these are the only ones I found.
cache.h | 4 ++++
lockfile.c | 12 ++++++------
refs.c | 7 ++++---
3 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/cache.h b/cache.h
index 3a873a4..825cd0a 100644
--- a/cache.h
+++ b/cache.h
@@ -533,6 +533,10 @@ extern void fill_stat_cache_info(struct cache_entry *ce,
struct stat *st);
#define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs
update" */
extern int refresh_index(struct index_state *, unsigned int flags, const
struct pathspec *pathspec, char *seen, const char *header_msg);
+/* String appended to a filename to derive the lockfile name: */
+#define LOCK_SUFFIX ".lock"
+#define LOCK_SUFFIX_LEN 5
+
struct lock_file {
struct lock_file *next;
int fd;
diff --git a/lockfile.c b/lockfile.c
index 8f6652c..1ce0e87 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -172,14 +172,14 @@ static char *resolve_symlink(char *p, size_t s)
return p;
}
-
static int lock_file(struct lock_file *lk, const char *path, int flags)
{
/*
- * subtract 5 from size to make sure there's room for adding
- * ".lock" for the lock file name
+ * subtract LOCK_SUFFIX_LEN from size to make sure there's
+ * room for adding ".lock" for the lock file name:
*/
- static const size_t max_path_len = sizeof(lk->filename) - 5;
+ static const size_t max_path_len = sizeof(lk->filename) -
+ LOCK_SUFFIX_LEN;
if (!lock_file_list) {
/* One-time initialization */
@@ -202,7 +202,7 @@ static int lock_file(struct lock_file *lk, const char
*path, int flags)
strcpy(lk->filename, path);
if (!(flags & LOCK_NODEREF))
resolve_symlink(lk->filename, max_path_len);
- strcat(lk->filename, ".lock");
+ strcat(lk->filename, LOCK_SUFFIX);
lk->fd = open(lk->filename, O_RDWR | O_CREAT | O_EXCL, 0666);
if (0 <= lk->fd) {
lk->owner = getpid();
@@ -296,7 +296,7 @@ int commit_lock_file(struct lock_file *lk)
if (lk->fd >= 0 && close_lock_file(lk))
return -1;
strcpy(result_file, lk->filename);
- i = strlen(result_file) - 5; /* .lock */
+ i = strlen(result_file) - LOCK_SUFFIX_LEN; /* .lock */
result_file[i] = 0;
if (rename(lk->filename, result_file))
return -1;
diff --git a/refs.c b/refs.c
index 67fe8b7..2805b31 100644
--- a/refs.c
+++ b/refs.c
@@ -63,7 +63,8 @@ static int check_refname_component(const char *refname, int
flags)
if (refname[1] == '\0')
return -1; /* Component equals ".". */
}
- if (cp - refname >= 5 && !memcmp(cp - 5, ".lock", 5))
+ if (cp - refname >= LOCK_SUFFIX_LEN &&
+ !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN))
return -1; /* Refname ends with ".lock". */
return cp - refname;
}
@@ -2486,11 +2487,11 @@ static int delete_ref_loose(struct ref_lock *lock, int
flag)
{
if (!(flag & REF_ISPACKED) || flag & REF_ISSYMREF) {
/* loose */
- int err, i = strlen(lock->lk->filename) - 5; /* .lock */
+ int err, i = strlen(lock->lk->filename) - LOCK_SUFFIX_LEN;
lock->lk->filename[i] = 0;
err = unlink_or_warn(lock->lk->filename);
- lock->lk->filename[i] = '.';
+ lock->lk->filename[i] = LOCK_SUFFIX[0];
if (err && errno != ENOENT)
return 1;
}
--
1.9.1
--
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