[PATCH 17/19] cgit.c: use struct strbuf instead of fmt()
John Keeping
john at keeping.me.uk
Sun Apr 7 11:30:08 CEST 2013
Signed-off-by: John Keeping <john at keeping.me.uk>
---
cgit.c | 76 +++++++++++++++++++++++++++++++++++-------------------------------
1 file changed, 40 insertions(+), 36 deletions(-)
diff --git a/cgit.c b/cgit.c
index bf42023..c226aaa 100644
--- a/cgit.c
+++ b/cgit.c
@@ -460,6 +460,7 @@ static char *guess_defbranch(void)
static int prepare_repo_cmd(struct cgit_context *ctx)
{
unsigned char sha1[20];
+ struct strbuf title = STRBUF_INIT;
int nongit = 0;
int rc;
@@ -467,8 +468,9 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
setup_git_directory_gently(&nongit);
if (nongit) {
rc = errno;
- ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
- "config error");
+ strbuf_addf(&title, "%s - %s", ctx->cfg.root_title,
+ "config error");
+ ctx->page.title = strbuf_detach(&title, NULL);
ctx->repo = NULL;
cgit_print_http_headers(ctx);
cgit_print_docstart(ctx);
@@ -479,7 +481,8 @@ static int prepare_repo_cmd(struct cgit_context *ctx)
cgit_print_docend();
return 1;
}
- ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
+ strbuf_addf(&title, "%s - %s", ctx->repo->name, ctx->repo->desc);
+ ctx->page.title = strbuf_detach(&title, NULL);
if (!ctx->repo->defbranch)
ctx->repo->defbranch = guess_defbranch();
@@ -577,21 +580,16 @@ static int cmp_repos(const void *a, const void *b)
static char *build_snapshot_setting(int bitmap)
{
const struct cgit_snapshot_format *f;
- char *result = xstrdup("");
- char *tmp;
- int len;
+ struct strbuf result = STRBUF_INIT;
for (f = cgit_snapshot_formats; f->suffix; f++) {
if (f->bit & bitmap) {
- tmp = result;
- result = xstrdup(fmt("%s%s ", tmp, f->suffix));
- free(tmp);
+ if (result.len)
+ strbuf_addch(&result, ' ');
+ strbuf_addstr(&result, f->suffix);
}
}
- len = strlen(result);
- if (len)
- result[len - 1] = '\0';
- return result;
+ return strbuf_detach(&result, NULL);
}
static char *get_first_line(char *txt)
@@ -639,7 +637,7 @@ static void print_repo(FILE *f, struct cgit_repo *repo)
fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
if (repo->snapshots != ctx.cfg.snapshots) {
char *tmp = build_snapshot_setting(repo->snapshots);
- fprintf(f, "repo.snapshots=%s\n", tmp);
+ fprintf(f, "repo.snapshots=%s\n", tmp ? tmp : "");
free(tmp);
}
if (repo->max_stats != ctx.cfg.max_stats)
@@ -661,20 +659,22 @@ static void print_repolist(FILE *f, struct cgit_repolist *list, int start)
*/
static int generate_cached_repolist(const char *path, const char *cached_rc)
{
- char *locked_rc;
+ struct strbuf locked_rc = STRBUF_INIT;
+ int result = 0;
int idx;
FILE *f;
- locked_rc = xstrdup(fmt("%s.lock", cached_rc));
- f = fopen(locked_rc, "wx");
+ strbuf_addf(&locked_rc, "%s.lock", cached_rc);
+ f = fopen(locked_rc.buf, "wx");
if (!f) {
/* Inform about the error unless the lockfile already existed,
* since that only means we've got concurrent requests.
*/
- if (errno != EEXIST)
+ result = errno;
+ if (result != EEXIST)
fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
- locked_rc, strerror(errno), errno);
- return errno;
+ locked_rc.buf, strerror(result), result);
+ goto out;
}
idx = cgit_repolist.count;
if (ctx.cfg.project_list)
@@ -682,55 +682,59 @@ static int generate_cached_repolist(const char *path, const char *cached_rc)
else
scan_tree(path, repo_config);
print_repolist(f, &cgit_repolist, idx);
- if (rename(locked_rc, cached_rc))
+ if (rename(locked_rc.buf, cached_rc))
fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
- locked_rc, cached_rc, strerror(errno), errno);
+ locked_rc.buf, cached_rc, strerror(errno), errno);
fclose(f);
- return 0;
+out:
+ strbuf_release(&locked_rc);
+ return result;
}
static void process_cached_repolist(const char *path)
{
struct stat st;
- char *cached_rc;
+ struct strbuf cached_rc = STRBUF_INIT;
time_t age;
unsigned long hash;
hash = hash_str(path);
if (ctx.cfg.project_list)
hash += hash_str(ctx.cfg.project_list);
- cached_rc = xstrdup(fmt("%s/rc-%8lx", ctx.cfg.cache_root, hash));
+ strbuf_addf(&cached_rc, "%s/rc-%8lx", ctx.cfg.cache_root, hash);
- if (stat(cached_rc, &st)) {
+ if (stat(cached_rc.buf, &st)) {
/* Nothing is cached, we need to scan without forking. And
* if we fail to generate a cached repolist, we need to
* invoke scan_tree manually.
*/
- if (generate_cached_repolist(path, cached_rc)) {
+ if (generate_cached_repolist(path, cached_rc.buf)) {
if (ctx.cfg.project_list)
scan_projects(path, ctx.cfg.project_list,
repo_config);
else
scan_tree(path, repo_config);
}
- return;
+ goto out;
}
- parse_configfile(cached_rc, config_cb);
+ parse_configfile(cached_rc.buf, config_cb);
/* If the cached configfile hasn't expired, lets exit now */
age = time(NULL) - st.st_mtime;
if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
- return;
+ goto out;
/* The cached repolist has been parsed, but it was old. So lets
* rescan the specified path and generate a new cached repolist
* in a child-process to avoid latency for the current request.
*/
if (fork())
- return;
+ goto out;
- exit(generate_cached_repolist(path, cached_rc));
+ exit(generate_cached_repolist(path, cached_rc.buf));
+out:
+ strbuf_release(&cached_rc);
}
static void cgit_parse_args(int argc, const char **argv)
@@ -812,7 +816,7 @@ static int calc_ttl()
int main(int argc, const char **argv)
{
const char *path;
- char *qry;
+ struct strbuf qry = STRBUF_INIT;
int err, ttl;
prepare_context(&ctx);
@@ -843,9 +847,9 @@ int main(int argc, const char **argv)
path++;
ctx.qry.url = xstrdup(path);
if (ctx.qry.raw) {
- qry = ctx.qry.raw;
- ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
- free(qry);
+ strbuf_addf(&qry, "%s?%s", path, ctx.qry.raw);
+ free(ctx.qry.raw);
+ ctx.qry.raw = strbuf_detach(&qry, NULL);
} else
ctx.qry.raw = xstrdup(ctx.qry.url);
cgit_parse_url(ctx.qry.url);
--
1.8.2.692.g17a9715
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