From 691f1a28bf57618d8b44a193b1d28013c858aba6 Mon Sep 17 00:00:00 2001 From: Alex Riesen Date: Wed, 29 Apr 2009 23:22:56 +0200 Subject: [PATCH] replace direct calls to unlink(2) with unlink_or_warn This helps to notice when something's going wrong, especially on systems which lock open files. I used the following criteria when selecting the code for replacement: - it was already printing a warning for the unlink failures - it is in a function which already printing something or is called from such a function - it is in a static function, returning void and the function is only called from a builtin main function (cmd_) - it is in a function which handles emergency exit (signal handlers) - it is in a function which is obvously cleaning up the lockfiles Signed-off-by: Alex Riesen Signed-off-by: Junio C Hamano --- builtin-apply.c | 4 ++-- builtin-fetch-pack.c | 2 +- builtin-prune-packed.c | 4 ++-- builtin-prune.c | 4 ++-- builtin-receive-pack.c | 2 +- builtin-remote.c | 4 ++-- builtin-rerere.c | 2 +- builtin-tag.c | 2 +- builtin-verify-tag.c | 2 +- diff.c | 2 +- entry.c | 2 +- fast-import.c | 4 ++-- http-push.c | 12 ++++++------ http-walker.c | 14 +++++++------- ll-merge.c | 2 +- lockfile.c | 4 ++-- pack-refs.c | 2 +- refs.c | 15 +++++---------- rerere.c | 2 +- server-info.c | 2 +- sha1_file.c | 2 +- transport.c | 2 +- unpack-trees.c | 2 +- 23 files changed, 44 insertions(+), 49 deletions(-) diff --git a/builtin-apply.c b/builtin-apply.c index 7b404ef660..8a3771e87e 100644 --- a/builtin-apply.c +++ b/builtin-apply.c @@ -2781,7 +2781,7 @@ static void remove_file(struct patch *patch, int rmdir_empty) if (rmdir(patch->old_name)) warning("unable to remove submodule %s", patch->old_name); - } else if (!unlink(patch->old_name) && rmdir_empty) { + } else if (!unlink_or_warn(patch->old_name) && rmdir_empty) { remove_path(patch->old_name); } } @@ -2891,7 +2891,7 @@ static void create_one_file(char *path, unsigned mode, const char *buf, unsigned if (!try_create_file(newpath, mode, buf, size)) { if (!rename(newpath, path)) return; - unlink(newpath); + unlink_or_warn(newpath); break; } if (errno != EEXIST) diff --git a/builtin-fetch-pack.c b/builtin-fetch-pack.c index 5d134be47c..bd97cfd9bf 100644 --- a/builtin-fetch-pack.c +++ b/builtin-fetch-pack.c @@ -814,7 +814,7 @@ struct ref *fetch_pack(struct fetch_pack_args *my_args, fd = hold_lock_file_for_update(&lock, shallow, LOCK_DIE_ON_ERROR); if (!write_shallow_commits(fd, 0)) { - unlink(shallow); + unlink_or_warn(shallow); rollback_lock_file(&lock); } else { commit_lock_file(&lock); diff --git a/builtin-prune-packed.c b/builtin-prune-packed.c index 4942892e9f..00590b1c3c 100644 --- a/builtin-prune-packed.c +++ b/builtin-prune-packed.c @@ -28,8 +28,8 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts) memcpy(pathname + len, de->d_name, 38); if (opts & DRY_RUN) printf("rm -f %s\n", pathname); - else if (unlink(pathname) < 0) - error("unable to unlink %s", pathname); + else + unlink_or_warn(pathname); display_progress(progress, i + 1); } pathname[len] = 0; diff --git a/builtin-prune.c b/builtin-prune.c index 545e9c1f94..145ba83651 100644 --- a/builtin-prune.c +++ b/builtin-prune.c @@ -27,7 +27,7 @@ static int prune_tmp_object(const char *path, const char *filename) } printf("Removing stale temporary file %s\n", fullpath); if (!show_only) - unlink(fullpath); + unlink_or_warn(fullpath); return 0; } @@ -47,7 +47,7 @@ static int prune_object(char *path, const char *filename, const unsigned char *s (type > 0) ? typename(type) : "unknown"); } if (!show_only) - unlink(fullpath); + unlink_or_warn(fullpath); return 0; } diff --git a/builtin-receive-pack.c b/builtin-receive-pack.c index a970b39505..035b723e50 100644 --- a/builtin-receive-pack.c +++ b/builtin-receive-pack.c @@ -702,7 +702,7 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) unpack_status = unpack(); execute_commands(unpack_status); if (pack_lockfile) - unlink(pack_lockfile); + unlink_or_warn(pack_lockfile); if (report_status) report(unpack_status); run_receive_hook(post_receive_hook); diff --git a/builtin-remote.c b/builtin-remote.c index 2ed752cbf1..71abf68404 100644 --- a/builtin-remote.c +++ b/builtin-remote.c @@ -525,8 +525,8 @@ static int migrate_file(struct remote *remote) path = git_path("remotes/%s", remote->name); else if (remote->origin == REMOTE_BRANCHES) path = git_path("branches/%s", remote->name); - if (path && unlink(path)) - warning("failed to remove '%s'", path); + if (path) + unlink_or_warn(path); return 0; } diff --git a/builtin-rerere.c b/builtin-rerere.c index 020af7377b..adfb7b5f48 100644 --- a/builtin-rerere.c +++ b/builtin-rerere.c @@ -116,7 +116,7 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) if (!has_rerere_resolution(name)) unlink_rr_item(name); } - unlink(git_path("rr-cache/MERGE_RR")); + unlink_or_warn(git_path("rr-cache/MERGE_RR")); } else if (!strcmp(argv[1], "gc")) garbage_collect(&merge_rr); else if (!strcmp(argv[1], "status")) diff --git a/builtin-tag.c b/builtin-tag.c index 01e73747d0..e544430094 100644 --- a/builtin-tag.c +++ b/builtin-tag.c @@ -338,7 +338,7 @@ static void create_tag(const unsigned char *object, const char *tag, exit(128); } if (path) { - unlink(path); + unlink_or_warn(path); free(path); } } diff --git a/builtin-verify-tag.c b/builtin-verify-tag.c index 729a1593e6..7f7fda42f9 100644 --- a/builtin-verify-tag.c +++ b/builtin-verify-tag.c @@ -55,7 +55,7 @@ static int run_gpg_verify(const char *buf, unsigned long size, int verbose) close(gpg.in); ret = finish_command(&gpg); - unlink(path); + unlink_or_warn(path); return ret; } diff --git a/diff.c b/diff.c index 3ac71686eb..6802f5ac12 100644 --- a/diff.c +++ b/diff.c @@ -189,7 +189,7 @@ static void remove_tempfile(void) int i; for (i = 0; i < ARRAY_SIZE(diff_temp); i++) { if (diff_temp[i].name == diff_temp[i].tmp_path) - unlink(diff_temp[i].name); + unlink_or_warn(diff_temp[i].name); diff_temp[i].name = NULL; } } diff --git a/entry.c b/entry.c index 915514aa5c..cc841edf90 100644 --- a/entry.c +++ b/entry.c @@ -35,7 +35,7 @@ static void create_directories(const char *path, int path_len, */ if (mkdir(buf, 0777)) { if (errno == EEXIST && state->force && - !unlink(buf) && !mkdir(buf, 0777)) + !unlink_or_warn(buf) && !mkdir(buf, 0777)) continue; die("cannot create directory at %s", buf); } diff --git a/fast-import.c b/fast-import.c index 8d959af3b2..6a618e9163 100644 --- a/fast-import.c +++ b/fast-import.c @@ -931,7 +931,7 @@ static void unkeep_all_packs(void) struct packed_git *p = all_packs[k]; snprintf(name, sizeof(name), "%s/pack/pack-%s.keep", get_object_directory(), sha1_to_hex(p->sha1)); - unlink(name); + unlink_or_warn(name); } } @@ -981,7 +981,7 @@ static void end_packfile(void) } else { close(old_p->pack_fd); - unlink(old_p->pack_name); + unlink_or_warn(old_p->pack_name); } free(old_p); diff --git a/http-push.c b/http-push.c index 5138224cc3..29e8ebfebb 100644 --- a/http-push.c +++ b/http-push.c @@ -315,9 +315,9 @@ static void start_fetch_loose(struct transfer_request *request) "%s.temp", filename); snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename); - unlink(prevfile); + unlink_or_warn(prevfile); rename(request->tmpfile, prevfile); - unlink(request->tmpfile); + unlink_or_warn(request->tmpfile); if (request->local_fileno != -1) error("fd leakage in start: %d", request->local_fileno); @@ -372,7 +372,7 @@ static void start_fetch_loose(struct transfer_request *request) } while (prev_read > 0); close(prevlocal); } - unlink(prevfile); + unlink_or_warn(prevfile); /* Reset inflate/SHA1 if there was an error reading the previous temp file; also rewind to the beginning of the local file. */ @@ -784,7 +784,7 @@ static void finish_request(struct transfer_request *request) request->http_code != 416) { if (stat(request->tmpfile, &st) == 0) { if (st.st_size == 0) - unlink(request->tmpfile); + unlink_or_warn(request->tmpfile); } } else { if (request->http_code == 416) @@ -793,9 +793,9 @@ static void finish_request(struct transfer_request *request) git_inflate_end(&request->stream); git_SHA1_Final(request->real_sha1, &request->c); if (request->zret != Z_STREAM_END) { - unlink(request->tmpfile); + unlink_or_warn(request->tmpfile); } else if (hashcmp(request->obj->sha1, request->real_sha1)) { - unlink(request->tmpfile); + unlink_or_warn(request->tmpfile); } else { request->rename = move_temp_to_file( diff --git a/http-walker.c b/http-walker.c index c5a3ea3b31..7321ccc9fe 100644 --- a/http-walker.c +++ b/http-walker.c @@ -111,9 +111,9 @@ static void start_object_request(struct walker *walker, struct walker_data *data = walker->data; snprintf(prevfile, sizeof(prevfile), "%s.prev", obj_req->filename); - unlink(prevfile); + unlink_or_warn(prevfile); rename(obj_req->tmpfile, prevfile); - unlink(obj_req->tmpfile); + unlink_or_warn(obj_req->tmpfile); if (obj_req->local != -1) error("fd leakage in start: %d", obj_req->local); @@ -177,7 +177,7 @@ static void start_object_request(struct walker *walker, } while (prev_read > 0); close(prevlocal); } - unlink(prevfile); + unlink_or_warn(prevfile); /* Reset inflate/SHA1 if there was an error reading the previous temp file; also rewind to the beginning of the local file. */ @@ -238,18 +238,18 @@ static void finish_object_request(struct object_request *obj_req) } else if (obj_req->curl_result != CURLE_OK) { if (stat(obj_req->tmpfile, &st) == 0) if (st.st_size == 0) - unlink(obj_req->tmpfile); + unlink_or_warn(obj_req->tmpfile); return; } git_inflate_end(&obj_req->stream); git_SHA1_Final(obj_req->real_sha1, &obj_req->c); if (obj_req->zret != Z_STREAM_END) { - unlink(obj_req->tmpfile); + unlink_or_warn(obj_req->tmpfile); return; } if (hashcmp(obj_req->sha1, obj_req->real_sha1)) { - unlink(obj_req->tmpfile); + unlink_or_warn(obj_req->tmpfile); return; } obj_req->rename = @@ -809,7 +809,7 @@ static void abort_object_request(struct object_request *obj_req) close(obj_req->local); obj_req->local = -1; } - unlink(obj_req->tmpfile); + unlink_or_warn(obj_req->tmpfile); if (obj_req->slot) { release_active_slot(obj_req->slot); obj_req->slot = NULL; diff --git a/ll-merge.c b/ll-merge.c index fa2ca5250c..81c02ad053 100644 --- a/ll-merge.c +++ b/ll-merge.c @@ -219,7 +219,7 @@ static int ll_ext_merge(const struct ll_merge_driver *fn, close(fd); bad: for (i = 0; i < 3; i++) - unlink(temp[i]); + unlink_or_warn(temp[i]); strbuf_release(&cmd); return status; } diff --git a/lockfile.c b/lockfile.c index 3dbb2d1ff9..984eb320fc 100644 --- a/lockfile.c +++ b/lockfile.c @@ -16,7 +16,7 @@ static void remove_lock_file(void) lock_file_list->filename[0]) { if (lock_file_list->fd >= 0) close(lock_file_list->fd); - unlink(lock_file_list->filename); + unlink_or_warn(lock_file_list->filename); } lock_file_list = lock_file_list->next; } @@ -259,7 +259,7 @@ void rollback_lock_file(struct lock_file *lk) if (lk->filename[0]) { if (lk->fd >= 0) close(lk->fd); - unlink(lk->filename); + unlink_or_warn(lk->filename); } lk->filename[0] = 0; } diff --git a/pack-refs.c b/pack-refs.c index 2c76fb181f..301fc60eae 100644 --- a/pack-refs.c +++ b/pack-refs.c @@ -66,7 +66,7 @@ static void prune_ref(struct ref_to_prune *r) struct ref_lock *lock = lock_ref_sha1(r->name + 5, r->sha1); if (lock) { - unlink(git_path("%s", r->name)); + unlink_or_warn(git_path("%s", r->name)); unlock_ref(lock); } } diff --git a/refs.c b/refs.c index e65a3b4c4e..2b1f0f0e6e 100644 --- a/refs.c +++ b/refs.c @@ -1002,12 +1002,10 @@ int delete_ref(const char *refname, const unsigned char *sha1, int delopt) } else { path = git_path("%s", refname); } - err = unlink(path); - if (err && errno != ENOENT) { + err = unlink_or_warn(path); + if (err && errno != ENOENT) ret = 1; - error("unlink(%s) failed: %s", - path, strerror(errno)); - } + if (!(delopt & REF_NODEREF)) lock->lk->filename[i] = '.'; } @@ -1017,10 +1015,7 @@ int delete_ref(const char *refname, const unsigned char *sha1, int delopt) */ ret |= repack_without_ref(refname); - err = unlink(git_path("logs/%s", lock->ref_name)); - if (err && errno != ENOENT) - warning("unlink(%s) failed: %s", - git_path("logs/%s", lock->ref_name), strerror(errno)); + unlink_or_warn(git_path("logs/%s", lock->ref_name)); invalidate_cached_refs(); unlock_ref(lock); return ret; @@ -1381,7 +1376,7 @@ int create_symref(const char *ref_target, const char *refs_heads_master, if (adjust_shared_perm(git_HEAD)) { error("Unable to fix permissions on %s", lockpath); error_unlink_return: - unlink(lockpath); + unlink_or_warn(lockpath); error_free_return: free(git_HEAD); return -1; diff --git a/rerere.c b/rerere.c index 713c6e16ac..87360dc23e 100644 --- a/rerere.c +++ b/rerere.c @@ -173,7 +173,7 @@ static int handle_file(const char *path, git_SHA1_Final(sha1, &ctx); if (hunk != RR_CONTEXT) { if (output) - unlink(output); + unlink_or_warn(output); return error("Could not parse conflict hunks in %s", path); } if (wrerror) diff --git a/server-info.c b/server-info.c index 66b0d9d878..d096dc7718 100644 --- a/server-info.c +++ b/server-info.c @@ -246,7 +246,7 @@ int update_server_info(int force) errs = errs | update_info_packs(force); /* remove leftover rev-cache file if there is any */ - unlink(git_path("info/rev-cache")); + unlink_or_warn(git_path("info/rev-cache")); return errs; } diff --git a/sha1_file.c b/sha1_file.c index f708cf4f67..dd474116a8 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -2247,7 +2247,7 @@ int move_temp_to_file(const char *tmpfile, const char *filename) goto out; ret = errno; } - unlink(tmpfile); + unlink_or_warn(tmpfile); if (ret) { if (ret != EEXIST) { return error("unable to write sha1 filename %s: %s\n", filename, strerror(ret)); diff --git a/transport.c b/transport.c index 3dfb03c06e..efecb65258 100644 --- a/transport.c +++ b/transport.c @@ -1069,7 +1069,7 @@ int transport_fetch_refs(struct transport *transport, const struct ref *refs) void transport_unlock_pack(struct transport *transport) { if (transport->pack_lockfile) { - unlink(transport->pack_lockfile); + unlink_or_warn(transport->pack_lockfile); free(transport->pack_lockfile); transport->pack_lockfile = NULL; } diff --git a/unpack-trees.c b/unpack-trees.c index e4eb8fa3af..aaacaf1015 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -61,7 +61,7 @@ static void unlink_entry(struct cache_entry *ce) { if (has_symlink_or_noent_leading_path(ce->name, ce_namelen(ce))) return; - if (unlink(ce->name)) + if (unlink_or_warn(ce->name)) return; schedule_dir_for_removal(ce->name, ce_namelen(ce)); }