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![Junio C Hamano](/assets/img/avatar_default.png)
Internal API clean-up to allow write_locked_index() optionally skip writing the in-core index when it is not modified. * ma/skip-writing-unchanged-index: write_locked_index(): add flag to avoid writing unchanged index
545 lines
15 KiB
C
545 lines
15 KiB
C
/*
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* "git add" builtin command
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*
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* Copyright (C) 2006 Linus Torvalds
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*/
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#include "cache.h"
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#include "config.h"
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#include "builtin.h"
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#include "lockfile.h"
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#include "dir.h"
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#include "pathspec.h"
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#include "exec_cmd.h"
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#include "cache-tree.h"
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#include "run-command.h"
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#include "parse-options.h"
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#include "diff.h"
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#include "diffcore.h"
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#include "revision.h"
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#include "bulk-checkin.h"
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#include "argv-array.h"
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#include "submodule.h"
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static const char * const builtin_add_usage[] = {
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N_("git add [<options>] [--] <pathspec>..."),
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NULL
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};
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static int patch_interactive, add_interactive, edit_interactive;
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static int take_worktree_changes;
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static int add_renormalize;
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struct update_callback_data {
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int flags;
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int add_errors;
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};
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static void chmod_pathspec(struct pathspec *pathspec, char flip)
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{
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int i;
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for (i = 0; i < active_nr; i++) {
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struct cache_entry *ce = active_cache[i];
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if (pathspec && !ce_path_match(ce, pathspec, NULL))
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continue;
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if (chmod_cache_entry(ce, flip) < 0)
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fprintf(stderr, "cannot chmod %cx '%s'\n", flip, ce->name);
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}
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}
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static int fix_unmerged_status(struct diff_filepair *p,
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struct update_callback_data *data)
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{
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if (p->status != DIFF_STATUS_UNMERGED)
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return p->status;
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if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL) && !p->two->mode)
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/*
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* This is not an explicit add request, and the
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* path is missing from the working tree (deleted)
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*/
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return DIFF_STATUS_DELETED;
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else
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/*
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* Either an explicit add request, or path exists
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* in the working tree. An attempt to explicitly
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* add a path that does not exist in the working tree
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* will be caught as an error by the caller immediately.
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*/
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return DIFF_STATUS_MODIFIED;
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}
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static void update_callback(struct diff_queue_struct *q,
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struct diff_options *opt, void *cbdata)
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{
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int i;
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struct update_callback_data *data = cbdata;
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for (i = 0; i < q->nr; i++) {
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struct diff_filepair *p = q->queue[i];
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const char *path = p->one->path;
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switch (fix_unmerged_status(p, data)) {
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default:
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die(_("unexpected diff status %c"), p->status);
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case DIFF_STATUS_MODIFIED:
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case DIFF_STATUS_TYPE_CHANGED:
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if (add_file_to_index(&the_index, path, data->flags)) {
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if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
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die(_("updating files failed"));
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data->add_errors++;
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}
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break;
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case DIFF_STATUS_DELETED:
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if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
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break;
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if (!(data->flags & ADD_CACHE_PRETEND))
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remove_file_from_index(&the_index, path);
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if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
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printf(_("remove '%s'\n"), path);
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break;
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}
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}
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}
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int add_files_to_cache(const char *prefix,
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const struct pathspec *pathspec, int flags)
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{
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struct update_callback_data data;
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struct rev_info rev;
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memset(&data, 0, sizeof(data));
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data.flags = flags;
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init_revisions(&rev, prefix);
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setup_revisions(0, NULL, &rev, NULL);
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if (pathspec)
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copy_pathspec(&rev.prune_data, pathspec);
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rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
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rev.diffopt.format_callback = update_callback;
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rev.diffopt.format_callback_data = &data;
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rev.diffopt.flags.override_submodule_config = 1;
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rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
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run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
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clear_pathspec(&rev.prune_data);
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return !!data.add_errors;
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}
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static int renormalize_tracked_files(const struct pathspec *pathspec, int flags)
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{
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int i, retval = 0;
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for (i = 0; i < active_nr; i++) {
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struct cache_entry *ce = active_cache[i];
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if (ce_stage(ce))
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continue; /* do not touch unmerged paths */
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if (!S_ISREG(ce->ce_mode) && !S_ISLNK(ce->ce_mode))
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continue; /* do not touch non blobs */
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if (pathspec && !ce_path_match(ce, pathspec, NULL))
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continue;
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retval |= add_file_to_cache(ce->name, flags | HASH_RENORMALIZE);
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}
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return retval;
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}
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static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix)
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{
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char *seen;
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int i;
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struct dir_entry **src, **dst;
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seen = xcalloc(pathspec->nr, 1);
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src = dst = dir->entries;
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i = dir->nr;
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while (--i >= 0) {
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struct dir_entry *entry = *src++;
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if (dir_path_match(entry, pathspec, prefix, seen))
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*dst++ = entry;
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}
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dir->nr = dst - dir->entries;
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add_pathspec_matches_against_index(pathspec, &the_index, seen);
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return seen;
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}
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static void refresh(int verbose, const struct pathspec *pathspec)
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{
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char *seen;
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int i;
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seen = xcalloc(pathspec->nr, 1);
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refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
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pathspec, seen, _("Unstaged changes after refreshing the index:"));
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for (i = 0; i < pathspec->nr; i++) {
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if (!seen[i])
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die(_("pathspec '%s' did not match any files"),
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pathspec->items[i].match);
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}
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free(seen);
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}
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int run_add_interactive(const char *revision, const char *patch_mode,
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const struct pathspec *pathspec)
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{
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int status, i;
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struct argv_array argv = ARGV_ARRAY_INIT;
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argv_array_push(&argv, "add--interactive");
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if (patch_mode)
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argv_array_push(&argv, patch_mode);
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if (revision)
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argv_array_push(&argv, revision);
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argv_array_push(&argv, "--");
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for (i = 0; i < pathspec->nr; i++)
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/* pass original pathspec, to be re-parsed */
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argv_array_push(&argv, pathspec->items[i].original);
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status = run_command_v_opt(argv.argv, RUN_GIT_CMD);
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argv_array_clear(&argv);
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return status;
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}
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int interactive_add(int argc, const char **argv, const char *prefix, int patch)
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{
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struct pathspec pathspec;
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parse_pathspec(&pathspec, 0,
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PATHSPEC_PREFER_FULL |
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PATHSPEC_SYMLINK_LEADING_PATH |
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PATHSPEC_PREFIX_ORIGIN,
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prefix, argv);
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return run_add_interactive(NULL,
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patch ? "--patch" : NULL,
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&pathspec);
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}
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static int edit_patch(int argc, const char **argv, const char *prefix)
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{
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char *file = git_pathdup("ADD_EDIT.patch");
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const char *apply_argv[] = { "apply", "--recount", "--cached",
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NULL, NULL };
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struct child_process child = CHILD_PROCESS_INIT;
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struct rev_info rev;
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int out;
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struct stat st;
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apply_argv[3] = file;
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git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
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if (read_cache() < 0)
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die(_("Could not read the index"));
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init_revisions(&rev, prefix);
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rev.diffopt.context = 7;
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argc = setup_revisions(argc, argv, &rev, NULL);
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rev.diffopt.output_format = DIFF_FORMAT_PATCH;
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rev.diffopt.use_color = 0;
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rev.diffopt.flags.ignore_dirty_submodules = 1;
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out = open(file, O_CREAT | O_WRONLY, 0666);
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if (out < 0)
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die(_("Could not open '%s' for writing."), file);
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rev.diffopt.file = xfdopen(out, "w");
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rev.diffopt.close_file = 1;
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if (run_diff_files(&rev, 0))
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die(_("Could not write patch"));
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if (launch_editor(file, NULL, NULL))
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die(_("editing patch failed"));
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if (stat(file, &st))
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die_errno(_("Could not stat '%s'"), file);
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if (!st.st_size)
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die(_("Empty patch. Aborted."));
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child.git_cmd = 1;
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child.argv = apply_argv;
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if (run_command(&child))
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die(_("Could not apply '%s'"), file);
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unlink(file);
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free(file);
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return 0;
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}
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static struct lock_file lock_file;
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static const char ignore_error[] =
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N_("The following paths are ignored by one of your .gitignore files:\n");
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static int verbose, show_only, ignored_too, refresh_only;
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static int ignore_add_errors, intent_to_add, ignore_missing;
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static int warn_on_embedded_repo = 1;
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#define ADDREMOVE_DEFAULT 1
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static int addremove = ADDREMOVE_DEFAULT;
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static int addremove_explicit = -1; /* unspecified */
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static char *chmod_arg;
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static int ignore_removal_cb(const struct option *opt, const char *arg, int unset)
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{
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/* if we are told to ignore, we are not adding removals */
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*(int *)opt->value = !unset ? 0 : 1;
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return 0;
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}
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static struct option builtin_add_options[] = {
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OPT__DRY_RUN(&show_only, N_("dry run")),
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OPT__VERBOSE(&verbose, N_("be verbose")),
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OPT_GROUP(""),
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OPT_BOOL('i', "interactive", &add_interactive, N_("interactive picking")),
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OPT_BOOL('p', "patch", &patch_interactive, N_("select hunks interactively")),
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OPT_BOOL('e', "edit", &edit_interactive, N_("edit current diff and apply")),
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OPT__FORCE(&ignored_too, N_("allow adding otherwise ignored files"), 0),
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OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")),
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OPT_BOOL(0, "renormalize", &add_renormalize, N_("renormalize EOL of tracked files (implies -u)")),
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OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that the path will be added later")),
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OPT_BOOL('A', "all", &addremove_explicit, N_("add changes from all tracked and untracked files")),
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{ OPTION_CALLBACK, 0, "ignore-removal", &addremove_explicit,
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NULL /* takes no arguments */,
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N_("ignore paths removed in the working tree (same as --no-all)"),
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PARSE_OPT_NOARG, ignore_removal_cb },
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OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the index")),
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OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files which cannot be added because of errors")),
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OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("check if - even missing - files are ignored in dry run")),
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OPT_STRING( 0 , "chmod", &chmod_arg, N_("(+/-)x"), N_("override the executable bit of the listed files")),
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OPT_HIDDEN_BOOL(0, "warn-embedded-repo", &warn_on_embedded_repo,
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N_("warn when adding an embedded repository")),
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OPT_END(),
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};
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static int add_config(const char *var, const char *value, void *cb)
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{
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if (!strcmp(var, "add.ignoreerrors") ||
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!strcmp(var, "add.ignore-errors")) {
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ignore_add_errors = git_config_bool(var, value);
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return 0;
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}
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return git_default_config(var, value, cb);
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}
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static const char embedded_advice[] = N_(
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"You've added another git repository inside your current repository.\n"
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"Clones of the outer repository will not contain the contents of\n"
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"the embedded repository and will not know how to obtain it.\n"
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"If you meant to add a submodule, use:\n"
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"\n"
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" git submodule add <url> %s\n"
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"\n"
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"If you added this path by mistake, you can remove it from the\n"
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"index with:\n"
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"\n"
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" git rm --cached %s\n"
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"\n"
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"See \"git help submodule\" for more information."
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);
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static void check_embedded_repo(const char *path)
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{
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struct strbuf name = STRBUF_INIT;
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if (!warn_on_embedded_repo)
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return;
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if (!ends_with(path, "/"))
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return;
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/* Drop trailing slash for aesthetics */
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strbuf_addstr(&name, path);
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strbuf_strip_suffix(&name, "/");
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warning(_("adding embedded git repository: %s"), name.buf);
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if (advice_add_embedded_repo) {
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advise(embedded_advice, name.buf, name.buf);
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/* there may be multiple entries; advise only once */
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advice_add_embedded_repo = 0;
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}
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strbuf_release(&name);
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}
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static int add_files(struct dir_struct *dir, int flags)
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{
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int i, exit_status = 0;
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if (dir->ignored_nr) {
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fprintf(stderr, _(ignore_error));
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for (i = 0; i < dir->ignored_nr; i++)
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fprintf(stderr, "%s\n", dir->ignored[i]->name);
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fprintf(stderr, _("Use -f if you really want to add them.\n"));
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exit_status = 1;
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}
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for (i = 0; i < dir->nr; i++) {
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check_embedded_repo(dir->entries[i]->name);
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if (add_file_to_index(&the_index, dir->entries[i]->name, flags)) {
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if (!ignore_add_errors)
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die(_("adding files failed"));
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exit_status = 1;
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}
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}
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return exit_status;
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}
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int cmd_add(int argc, const char **argv, const char *prefix)
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{
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int exit_status = 0;
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struct pathspec pathspec;
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struct dir_struct dir;
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int flags;
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int add_new_files;
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int require_pathspec;
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char *seen = NULL;
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git_config(add_config, NULL);
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argc = parse_options(argc, argv, prefix, builtin_add_options,
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builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
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if (patch_interactive)
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add_interactive = 1;
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if (add_interactive)
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exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive));
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if (edit_interactive)
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return(edit_patch(argc, argv, prefix));
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argc--;
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argv++;
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if (0 <= addremove_explicit)
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addremove = addremove_explicit;
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else if (take_worktree_changes && ADDREMOVE_DEFAULT)
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addremove = 0; /* "-u" was given but not "-A" */
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if (addremove && take_worktree_changes)
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die(_("-A and -u are mutually incompatible"));
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if (!take_worktree_changes && addremove_explicit < 0 && argc)
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/* Turn "git add pathspec..." to "git add -A pathspec..." */
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addremove = 1;
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if (!show_only && ignore_missing)
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die(_("Option --ignore-missing can only be used together with --dry-run"));
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if (chmod_arg && ((chmod_arg[0] != '-' && chmod_arg[0] != '+') ||
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chmod_arg[1] != 'x' || chmod_arg[2]))
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die(_("--chmod param '%s' must be either -x or +x"), chmod_arg);
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add_new_files = !take_worktree_changes && !refresh_only && !add_renormalize;
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require_pathspec = !(take_worktree_changes || (0 < addremove_explicit));
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hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
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flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
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(show_only ? ADD_CACHE_PRETEND : 0) |
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(intent_to_add ? ADD_CACHE_INTENT : 0) |
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(ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
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(!(addremove || take_worktree_changes)
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? ADD_CACHE_IGNORE_REMOVAL : 0));
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if (require_pathspec && argc == 0) {
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fprintf(stderr, _("Nothing specified, nothing added.\n"));
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fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n"));
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return 0;
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}
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if (read_cache() < 0)
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die(_("index file corrupt"));
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die_in_unpopulated_submodule(&the_index, prefix);
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/*
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* Check the "pathspec '%s' did not match any files" block
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* below before enabling new magic.
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*/
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parse_pathspec(&pathspec, 0,
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PATHSPEC_PREFER_FULL |
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PATHSPEC_SYMLINK_LEADING_PATH,
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prefix, argv);
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die_path_inside_submodule(&the_index, &pathspec);
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if (add_new_files) {
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int baselen;
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/* Set up the default git porcelain excludes */
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memset(&dir, 0, sizeof(dir));
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if (!ignored_too) {
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dir.flags |= DIR_COLLECT_IGNORED;
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setup_standard_excludes(&dir);
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}
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/* This picks up the paths that are not tracked */
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baselen = fill_directory(&dir, &the_index, &pathspec);
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if (pathspec.nr)
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seen = prune_directory(&dir, &pathspec, baselen);
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}
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if (refresh_only) {
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refresh(verbose, &pathspec);
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goto finish;
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}
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if (pathspec.nr) {
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int i;
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if (!seen)
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seen = find_pathspecs_matching_against_index(&pathspec, &the_index);
|
|
|
|
/*
|
|
* file_exists() assumes exact match
|
|
*/
|
|
GUARD_PATHSPEC(&pathspec,
|
|
PATHSPEC_FROMTOP |
|
|
PATHSPEC_LITERAL |
|
|
PATHSPEC_GLOB |
|
|
PATHSPEC_ICASE |
|
|
PATHSPEC_EXCLUDE);
|
|
|
|
for (i = 0; i < pathspec.nr; i++) {
|
|
const char *path = pathspec.items[i].match;
|
|
if (pathspec.items[i].magic & PATHSPEC_EXCLUDE)
|
|
continue;
|
|
if (!seen[i] && path[0] &&
|
|
((pathspec.items[i].magic &
|
|
(PATHSPEC_GLOB | PATHSPEC_ICASE)) ||
|
|
!file_exists(path))) {
|
|
if (ignore_missing) {
|
|
int dtype = DT_UNKNOWN;
|
|
if (is_excluded(&dir, &the_index, path, &dtype))
|
|
dir_add_ignored(&dir, &the_index,
|
|
path, pathspec.items[i].len);
|
|
} else
|
|
die(_("pathspec '%s' did not match any files"),
|
|
pathspec.items[i].original);
|
|
}
|
|
}
|
|
free(seen);
|
|
}
|
|
|
|
plug_bulk_checkin();
|
|
|
|
if (add_renormalize)
|
|
exit_status |= renormalize_tracked_files(&pathspec, flags);
|
|
else
|
|
exit_status |= add_files_to_cache(prefix, &pathspec, flags);
|
|
|
|
if (add_new_files)
|
|
exit_status |= add_files(&dir, flags);
|
|
|
|
if (chmod_arg && pathspec.nr)
|
|
chmod_pathspec(&pathspec, chmod_arg[0]);
|
|
unplug_bulk_checkin();
|
|
|
|
finish:
|
|
if (write_locked_index(&the_index, &lock_file,
|
|
COMMIT_LOCK | SKIP_IF_UNCHANGED))
|
|
die(_("Unable to write new index file"));
|
|
|
|
UNLEAK(pathspec);
|
|
UNLEAK(dir);
|
|
return exit_status;
|
|
}
|