/* * GIT - The information manager from hell * * Copyright (C) Linus Torvalds, 2005 */ #include "cache.h" #include "quote.h" #include "cache-tree.h" #include "tree-walk.h" #include "builtin.h" #include "refs.h" #include "resolve-undo.h" #include "parse-options.h" /* * Default to not allowing changes to the list of files. The * tool doesn't actually care, but this makes it harder to add * files to the revision control by mistake by doing something * like "git update-index *" and suddenly having all the object * files be revision controlled. */ static int allow_add; static int allow_remove; static int allow_replace; static int info_only; static int force_remove; static int verbose; static int mark_valid_only; static int mark_skip_worktree_only; #define MARK_FLAG 1 #define UNMARK_FLAG 2 __attribute__((format (printf, 1, 2))) static void report(const char *fmt, ...) { va_list vp; if (!verbose) return; va_start(vp, fmt); vprintf(fmt, vp); putchar('\n'); va_end(vp); } static int mark_ce_flags(const char *path, int flag, int mark) { int namelen = strlen(path); int pos = cache_name_pos(path, namelen); if (0 <= pos) { if (mark) active_cache[pos]->ce_flags |= flag; else active_cache[pos]->ce_flags &= ~flag; cache_tree_invalidate_path(active_cache_tree, path); active_cache_changed = 1; return 0; } return -1; } static int remove_one_path(const char *path) { if (!allow_remove) return error("%s: does not exist and --remove not passed", path); if (remove_file_from_cache(path)) return error("%s: cannot remove from the index", path); return 0; } /* * Handle a path that couldn't be lstat'ed. It's either: * - missing file (ENOENT or ENOTDIR). That's ok if we're * supposed to be removing it and the removal actually * succeeds. * - permission error. That's never ok. */ static int process_lstat_error(const char *path, int err) { if (err == ENOENT || err == ENOTDIR) return remove_one_path(path); return error("lstat(\"%s\"): %s", path, strerror(errno)); } static int add_one_path(struct cache_entry *old, const char *path, int len, struct stat *st) { int option, size; struct cache_entry *ce; /* Was the old index entry already up-to-date? */ if (old && !ce_stage(old) && !ce_match_stat(old, st, 0)) return 0; size = cache_entry_size(len); ce = xcalloc(1, size); memcpy(ce->name, path, len); ce->ce_flags = create_ce_flags(0); ce->ce_namelen = len; fill_stat_cache_info(ce, st); ce->ce_mode = ce_mode_from_stat(old, st->st_mode); if (index_path(ce->sha1, path, st, info_only ? 0 : HASH_WRITE_OBJECT)) { free(ce); return -1; } option = allow_add ? ADD_CACHE_OK_TO_ADD : 0; option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0; if (add_cache_entry(ce, option)) return error("%s: cannot add to the index - missing --add option?", path); return 0; } /* * Handle a path that was a directory. Four cases: * * - it's already a gitlink in the index, and we keep it that * way, and update it if we can (if we cannot find the HEAD, * we're going to keep it unchanged in the index!) * * - it's a *file* in the index, in which case it should be * removed as a file if removal is allowed, since it doesn't * exist as such any more. If removal isn't allowed, it's * an error. * * (NOTE! This is old and arguably fairly strange behaviour. * We might want to make this an error unconditionally, and * use "--force-remove" if you actually want to force removal). * * - it used to exist as a subdirectory (ie multiple files with * this particular prefix) in the index, in which case it's wrong * to try to update it as a directory. * * - it doesn't exist at all in the index, but it is a valid * git directory, and it should be *added* as a gitlink. */ static int process_directory(const char *path, int len, struct stat *st) { unsigned char sha1[20]; int pos = cache_name_pos(path, len); /* Exact match: file or existing gitlink */ if (pos >= 0) { struct cache_entry *ce = active_cache[pos]; if (S_ISGITLINK(ce->ce_mode)) { /* Do nothing to the index if there is no HEAD! */ if (resolve_gitlink_ref(path, "HEAD", sha1) < 0) return 0; return add_one_path(ce, path, len, st); } /* Should this be an unconditional error? */ return remove_one_path(path); } /* Inexact match: is there perhaps a subdirectory match? */ pos = -pos-1; while (pos < active_nr) { struct cache_entry *ce = active_cache[pos++]; if (strncmp(ce->name, path, len)) break; if (ce->name[len] > '/') break; if (ce->name[len] < '/') continue; /* Subdirectory match - error out */ return error("%s: is a directory - add individual files instead", path); } /* No match - should we add it as a gitlink? */ if (!resolve_gitlink_ref(path, "HEAD", sha1)) return add_one_path(NULL, path, len, st); /* Error out. */ return error("%s: is a directory - add files inside instead", path); } static int process_path(const char *path) { int pos, len; struct stat st; struct cache_entry *ce; len = strlen(path); if (has_symlink_leading_path(path, len)) return error("'%s' is beyond a symbolic link", path); pos = cache_name_pos(path, len); ce = pos < 0 ? NULL : active_cache[pos]; if (ce && ce_skip_worktree(ce)) { /* * working directory version is assumed "good" * so updating it does not make sense. * On the other hand, removing it from index should work */ if (allow_remove && remove_file_from_cache(path)) return error("%s: cannot remove from the index", path); return 0; } /* * First things first: get the stat information, to decide * what to do about the pathname! */ if (lstat(path, &st) < 0) return process_lstat_error(path, errno); if (S_ISDIR(st.st_mode)) return process_directory(path, len, &st); return add_one_path(ce, path, len, &st); } static int add_cacheinfo(unsigned int mode, const unsigned char *sha1, const char *path, int stage) { int size, len, option; struct cache_entry *ce; if (!verify_path(path)) return error("Invalid path '%s'", path); len = strlen(path); size = cache_entry_size(len); ce = xcalloc(1, size); hashcpy(ce->sha1, sha1); memcpy(ce->name, path, len); ce->ce_flags = create_ce_flags(stage); ce->ce_namelen = len; ce->ce_mode = create_ce_mode(mode); if (assume_unchanged) ce->ce_flags |= CE_VALID; option = allow_add ? ADD_CACHE_OK_TO_ADD : 0; option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0; if (add_cache_entry(ce, option)) return error("%s: cannot add to the index - missing --add option?", path); report("add '%s'", path); return 0; } static void chmod_path(int flip, const char *path) { int pos; struct cache_entry *ce; unsigned int mode; pos = cache_name_pos(path, strlen(path)); if (pos < 0) goto fail; ce = active_cache[pos]; mode = ce->ce_mode; if (!S_ISREG(mode)) goto fail; switch (flip) { case '+': ce->ce_mode |= 0111; break; case '-': ce->ce_mode &= ~0111; break; default: goto fail; } cache_tree_invalidate_path(active_cache_tree, path); active_cache_changed = 1; report("chmod %cx '%s'", flip, path); return; fail: die("git update-index: cannot chmod %cx '%s'", flip, path); } static void update_one(const char *path, const char *prefix, int prefix_length) { const char *p = prefix_path(prefix, prefix_length, path); if (!verify_path(p)) { fprintf(stderr, "Ignoring path %s\n", path); goto free_return; } if (mark_valid_only) { if (mark_ce_flags(p, CE_VALID, mark_valid_only == MARK_FLAG)) die("Unable to mark file %s", path); goto free_return; } if (mark_skip_worktree_only) { if (mark_ce_flags(p, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG)) die("Unable to mark file %s", path); goto free_return; } if (force_remove) { if (remove_file_from_cache(p)) die("git update-index: unable to remove %s", path); report("remove '%s'", path); goto free_return; } if (process_path(p)) die("Unable to process path %s", path); report("add '%s'", path); free_return: if (p < path || p > path + strlen(path)) free((char *)p); } static void read_index_info(int line_termination) { struct strbuf buf = STRBUF_INIT; struct strbuf uq = STRBUF_INIT; while (strbuf_getline(&buf, stdin, line_termination) != EOF) { char *ptr, *tab; char *path_name; unsigned char sha1[20]; unsigned int mode; unsigned long ul; int stage; /* This reads lines formatted in one of three formats: * * (1) mode SP sha1 TAB path * The first format is what "git apply --index-info" * reports, and used to reconstruct a partial tree * that is used for phony merge base tree when falling * back on 3-way merge. * * (2) mode SP type SP sha1 TAB path * The second format is to stuff "git ls-tree" output * into the index file. * * (3) mode SP sha1 SP stage TAB path * This format is to put higher order stages into the * index file and matches "git ls-files --stage" output. */ errno = 0; ul = strtoul(buf.buf, &ptr, 8); if (ptr == buf.buf || *ptr != ' ' || errno || (unsigned int) ul != ul) goto bad_line; mode = ul; tab = strchr(ptr, '\t'); if (!tab || tab - ptr < 41) goto bad_line; if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') { stage = tab[-1] - '0'; ptr = tab + 1; /* point at the head of path */ tab = tab - 2; /* point at tail of sha1 */ } else { stage = 0; ptr = tab + 1; /* point at the head of path */ } if (get_sha1_hex(tab - 40, sha1) || tab[-41] != ' ') goto bad_line; path_name = ptr; if (line_termination && path_name[0] == '"') { strbuf_reset(&uq); if (unquote_c_style(&uq, path_name, NULL)) { die("git update-index: bad quoting of path name"); } path_name = uq.buf; } if (!verify_path(path_name)) { fprintf(stderr, "Ignoring path %s\n", path_name); continue; } if (!mode) { /* mode == 0 means there is no such path -- remove */ if (remove_file_from_cache(path_name)) die("git update-index: unable to remove %s", ptr); } else { /* mode ' ' sha1 '\t' name * ptr[-1] points at tab, * ptr[-41] is at the beginning of sha1 */ ptr[-42] = ptr[-1] = 0; if (add_cacheinfo(mode, sha1, path_name, stage)) die("git update-index: unable to update %s", path_name); } continue; bad_line: die("malformed index info %s", buf.buf); } strbuf_release(&buf); strbuf_release(&uq); } static const char * const update_index_usage[] = { N_("git update-index [options] [--] [<file>...]"), NULL }; static unsigned char head_sha1[20]; static unsigned char merge_head_sha1[20]; static struct cache_entry *read_one_ent(const char *which, unsigned char *ent, const char *path, int namelen, int stage) { unsigned mode; unsigned char sha1[20]; int size; struct cache_entry *ce; if (get_tree_entry(ent, path, sha1, &mode)) { if (which) error("%s: not in %s branch.", path, which); return NULL; } if (mode == S_IFDIR) { if (which) error("%s: not a blob in %s branch.", path, which); return NULL; } size = cache_entry_size(namelen); ce = xcalloc(1, size); hashcpy(ce->sha1, sha1); memcpy(ce->name, path, namelen); ce->ce_flags = create_ce_flags(stage); ce->ce_namelen = namelen; ce->ce_mode = create_ce_mode(mode); return ce; } static int unresolve_one(const char *path) { int namelen = strlen(path); int pos; int ret = 0; struct cache_entry *ce_2 = NULL, *ce_3 = NULL; /* See if there is such entry in the index. */ pos = cache_name_pos(path, namelen); if (0 <= pos) { /* already merged */ pos = unmerge_cache_entry_at(pos); if (pos < active_nr) { struct cache_entry *ce = active_cache[pos]; if (ce_stage(ce) && ce_namelen(ce) == namelen && !memcmp(ce->name, path, namelen)) return 0; } /* no resolve-undo information; fall back */ } else { /* If there isn't, either it is unmerged, or * resolved as "removed" by mistake. We do not * want to do anything in the former case. */ pos = -pos-1; if (pos < active_nr) { struct cache_entry *ce = active_cache[pos]; if (ce_namelen(ce) == namelen && !memcmp(ce->name, path, namelen)) { fprintf(stderr, "%s: skipping still unmerged path.\n", path); goto free_return; } } } /* Grab blobs from given path from HEAD and MERGE_HEAD, * stuff HEAD version in stage #2, * stuff MERGE_HEAD version in stage #3. */ ce_2 = read_one_ent("our", head_sha1, path, namelen, 2); ce_3 = read_one_ent("their", merge_head_sha1, path, namelen, 3); if (!ce_2 || !ce_3) { ret = -1; goto free_return; } if (!hashcmp(ce_2->sha1, ce_3->sha1) && ce_2->ce_mode == ce_3->ce_mode) { fprintf(stderr, "%s: identical in both, skipping.\n", path); goto free_return; } remove_file_from_cache(path); if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) { error("%s: cannot add our version to the index.", path); ret = -1; goto free_return; } if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD)) return 0; error("%s: cannot add their version to the index.", path); ret = -1; free_return: free(ce_2); free(ce_3); return ret; } static void read_head_pointers(void) { if (read_ref("HEAD", head_sha1)) die("No HEAD -- no initial commit yet?"); if (read_ref("MERGE_HEAD", merge_head_sha1)) { fprintf(stderr, "Not in the middle of a merge.\n"); exit(0); } } static int do_unresolve(int ac, const char **av, const char *prefix, int prefix_length) { int i; int err = 0; /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we * are not doing a merge, so exit with success status. */ read_head_pointers(); for (i = 1; i < ac; i++) { const char *arg = av[i]; const char *p = prefix_path(prefix, prefix_length, arg); err |= unresolve_one(p); if (p < arg || p > arg + strlen(arg)) free((char *)p); } return err; } static int do_reupdate(int ac, const char **av, const char *prefix, int prefix_length) { /* Read HEAD and run update-index on paths that are * merged and already different between index and HEAD. */ int pos; int has_head = 1; const char **paths = get_pathspec(prefix, av + 1); struct pathspec pathspec; init_pathspec(&pathspec, paths); if (read_ref("HEAD", head_sha1)) /* If there is no HEAD, that means it is an initial * commit. Update everything in the index. */ has_head = 0; redo: for (pos = 0; pos < active_nr; pos++) { struct cache_entry *ce = active_cache[pos]; struct cache_entry *old = NULL; int save_nr; if (ce_stage(ce) || !ce_path_match(ce, &pathspec)) continue; if (has_head) old = read_one_ent(NULL, head_sha1, ce->name, ce_namelen(ce), 0); if (old && ce->ce_mode == old->ce_mode && !hashcmp(ce->sha1, old->sha1)) { free(old); continue; /* unchanged */ } /* Be careful. The working tree may not have the * path anymore, in which case, under 'allow_remove', * or worse yet 'allow_replace', active_nr may decrease. */ save_nr = active_nr; update_one(ce->name + prefix_length, prefix, prefix_length); if (save_nr != active_nr) goto redo; } free_pathspec(&pathspec); return 0; } struct refresh_params { unsigned int flags; int *has_errors; }; static int refresh(struct refresh_params *o, unsigned int flag) { setup_work_tree(); read_cache_preload(NULL); *o->has_errors |= refresh_cache(o->flags | flag); return 0; } static int refresh_callback(const struct option *opt, const char *arg, int unset) { return refresh(opt->value, 0); } static int really_refresh_callback(const struct option *opt, const char *arg, int unset) { return refresh(opt->value, REFRESH_REALLY); } static int chmod_callback(const struct option *opt, const char *arg, int unset) { char *flip = opt->value; if ((arg[0] != '-' && arg[0] != '+') || arg[1] != 'x' || arg[2]) return error("option 'chmod' expects \"+x\" or \"-x\""); *flip = arg[0]; return 0; } static int resolve_undo_clear_callback(const struct option *opt, const char *arg, int unset) { resolve_undo_clear(); return 0; } static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { unsigned char sha1[20]; unsigned int mode; if (ctx->argc <= 3) return error("option 'cacheinfo' expects three arguments"); if (strtoul_ui(*++ctx->argv, 8, &mode) || get_sha1_hex(*++ctx->argv, sha1) || add_cacheinfo(mode, sha1, *++ctx->argv, 0)) die("git update-index: --cacheinfo cannot add %s", *ctx->argv); ctx->argc -= 3; return 0; } static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { int *line_termination = opt->value; if (ctx->argc != 1) return error("option '%s' must be the last argument", opt->long_name); allow_add = allow_replace = allow_remove = 1; read_index_info(*line_termination); return 0; } static int stdin_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { int *read_from_stdin = opt->value; if (ctx->argc != 1) return error("option '%s' must be the last argument", opt->long_name); *read_from_stdin = 1; return 0; } static int unresolve_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int flags) { int *has_errors = opt->value; const char *prefix = startup_info->prefix; /* consume remaining arguments. */ *has_errors = do_unresolve(ctx->argc, ctx->argv, prefix, prefix ? strlen(prefix) : 0); if (*has_errors) active_cache_changed = 0; ctx->argv += ctx->argc - 1; ctx->argc = 1; return 0; } static int reupdate_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int flags) { int *has_errors = opt->value; const char *prefix = startup_info->prefix; /* consume remaining arguments. */ setup_work_tree(); *has_errors = do_reupdate(ctx->argc, ctx->argv, prefix, prefix ? strlen(prefix) : 0); if (*has_errors) active_cache_changed = 0; ctx->argv += ctx->argc - 1; ctx->argc = 1; return 0; } int cmd_update_index(int argc, const char **argv, const char *prefix) { int newfd, entries, has_errors = 0, line_termination = '\n'; int read_from_stdin = 0; int prefix_length = prefix ? strlen(prefix) : 0; int preferred_index_format = 0; char set_executable_bit = 0; struct refresh_params refresh_args = {0, &has_errors}; int lock_error = 0; struct lock_file *lock_file; struct parse_opt_ctx_t ctx; int parseopt_state = PARSE_OPT_UNKNOWN; struct option options[] = { OPT_BIT('q', NULL, &refresh_args.flags, N_("continue refresh even when index needs update"), REFRESH_QUIET), OPT_BIT(0, "ignore-submodules", &refresh_args.flags, N_("refresh: ignore submodules"), REFRESH_IGNORE_SUBMODULES), OPT_SET_INT(0, "add", &allow_add, N_("do not ignore new files"), 1), OPT_SET_INT(0, "replace", &allow_replace, N_("let files replace directories and vice-versa"), 1), OPT_SET_INT(0, "remove", &allow_remove, N_("notice files missing from worktree"), 1), OPT_BIT(0, "unmerged", &refresh_args.flags, N_("refresh even if index contains unmerged entries"), REFRESH_UNMERGED), {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL, N_("refresh stat information"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, refresh_callback}, {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL, N_("like --refresh, but ignore assume-unchanged setting"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, really_refresh_callback}, {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL, N_("<mode> <object> <path>"), N_("add the specified entry to the index"), PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */ PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, (parse_opt_cb *) cacheinfo_callback}, {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"), N_("override the executable bit of the listed files"), PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, chmod_callback}, {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL, N_("mark files as \"not changing\""), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG}, {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL, N_("clear assumed-unchanged bit"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG}, {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL, N_("mark files as \"index-only\""), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG}, {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL, N_("clear skip-worktree bit"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG}, OPT_SET_INT(0, "info-only", &info_only, N_("add to index only; do not add content to object database"), 1), OPT_SET_INT(0, "force-remove", &force_remove, N_("remove named paths even if present in worktree"), 1), OPT_SET_INT('z', NULL, &line_termination, N_("with --stdin: input lines are terminated by null bytes"), '\0'), {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL, N_("read list of paths to be updated from standard input"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) stdin_callback}, {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &line_termination, NULL, N_("add entries from standard input to the index"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) stdin_cacheinfo_callback}, {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL, N_("repopulate stages #2 and #3 for the listed paths"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) unresolve_callback}, {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL, N_("only update entries that differ from HEAD"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) reupdate_callback}, OPT_BIT(0, "ignore-missing", &refresh_args.flags, N_("ignore files missing from worktree"), REFRESH_IGNORE_MISSING), OPT_SET_INT(0, "verbose", &verbose, N_("report actions to standard output"), 1), {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL, N_("(for porcelains) forget saved unresolved conflicts"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, resolve_undo_clear_callback}, OPT_INTEGER(0, "index-version", &preferred_index_format, N_("write index in this format")), OPT_END() }; if (argc == 2 && !strcmp(argv[1], "-h")) usage(update_index_usage[0]); git_config(git_default_config, NULL); /* We can't free this memory, it becomes part of a linked list parsed atexit() */ lock_file = xcalloc(1, sizeof(struct lock_file)); newfd = hold_locked_index(lock_file, 0); if (newfd < 0) lock_error = errno; entries = read_cache(); if (entries < 0) die("cache corrupted"); /* * Custom copy of parse_options() because we want to handle * filename arguments as they come. */ parse_options_start(&ctx, argc, argv, prefix, options, PARSE_OPT_STOP_AT_NON_OPTION); while (ctx.argc) { if (parseopt_state != PARSE_OPT_DONE) parseopt_state = parse_options_step(&ctx, options, update_index_usage); if (!ctx.argc) break; switch (parseopt_state) { case PARSE_OPT_HELP: exit(129); case PARSE_OPT_NON_OPTION: case PARSE_OPT_DONE: { const char *path = ctx.argv[0]; const char *p; setup_work_tree(); p = prefix_path(prefix, prefix_length, path); update_one(p, NULL, 0); if (set_executable_bit) chmod_path(set_executable_bit, p); if (p < path || p > path + strlen(path)) free((char *)p); ctx.argc--; ctx.argv++; break; } case PARSE_OPT_UNKNOWN: if (ctx.argv[0][1] == '-') error("unknown option '%s'", ctx.argv[0] + 2); else error("unknown switch '%c'", *ctx.opt); usage_with_options(update_index_usage, options); } } argc = parse_options_end(&ctx); if (preferred_index_format) { if (preferred_index_format < INDEX_FORMAT_LB || INDEX_FORMAT_UB < preferred_index_format) die("index-version %d not in range: %d..%d", preferred_index_format, INDEX_FORMAT_LB, INDEX_FORMAT_UB); if (the_index.version != preferred_index_format) active_cache_changed = 1; the_index.version = preferred_index_format; } if (read_from_stdin) { struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; setup_work_tree(); while (strbuf_getline(&buf, stdin, line_termination) != EOF) { const char *p; if (line_termination && buf.buf[0] == '"') { strbuf_reset(&nbuf); if (unquote_c_style(&nbuf, buf.buf, NULL)) die("line is badly quoted"); strbuf_swap(&buf, &nbuf); } p = prefix_path(prefix, prefix_length, buf.buf); update_one(p, NULL, 0); if (set_executable_bit) chmod_path(set_executable_bit, p); if (p < buf.buf || p > buf.buf + buf.len) free((char *)p); } strbuf_release(&nbuf); strbuf_release(&buf); } if (active_cache_changed) { if (newfd < 0) { if (refresh_args.flags & REFRESH_QUIET) exit(128); unable_to_lock_index_die(get_index_file(), lock_error); } if (write_cache(newfd, active_cache, active_nr) || commit_locked_index(lock_file)) die("Unable to write new index file"); } rollback_lock_file(lock_file); return has_errors ? 1 : 0; }