diff options
Diffstat (limited to 'builtin/add.c')
| -rw-r--r-- | builtin/add.c | 484 |
1 files changed, 484 insertions, 0 deletions
diff --git a/builtin/add.c b/builtin/add.c new file mode 100644 index 0000000000..87446cf92a --- /dev/null +++ b/builtin/add.c @@ -0,0 +1,484 @@ +/* + * "git add" builtin command + * + * Copyright (C) 2006 Linus Torvalds + */ +#include "cache.h" +#include "builtin.h" +#include "dir.h" +#include "exec_cmd.h" +#include "cache-tree.h" +#include "run-command.h" +#include "parse-options.h" +#include "diff.h" +#include "diffcore.h" +#include "revision.h" +#include "bulk-checkin.h" + +static const char * const builtin_add_usage[] = { + "git add [options] [--] <filepattern>...", + NULL +}; +static int patch_interactive, add_interactive, edit_interactive; +static int take_worktree_changes; + +struct update_callback_data { + int flags; + int add_errors; +}; + +static int fix_unmerged_status(struct diff_filepair *p, + struct update_callback_data *data) +{ + if (p->status != DIFF_STATUS_UNMERGED) + return p->status; + if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL) && !p->two->mode) + /* + * This is not an explicit add request, and the + * path is missing from the working tree (deleted) + */ + return DIFF_STATUS_DELETED; + else + /* + * Either an explicit add request, or path exists + * in the working tree. An attempt to explicitly + * add a path that does not exist in the working tree + * will be caught as an error by the caller immediately. + */ + return DIFF_STATUS_MODIFIED; +} + +static void update_callback(struct diff_queue_struct *q, + struct diff_options *opt, void *cbdata) +{ + int i; + struct update_callback_data *data = cbdata; + + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + const char *path = p->one->path; + switch (fix_unmerged_status(p, data)) { + default: + die(_("unexpected diff status %c"), p->status); + case DIFF_STATUS_MODIFIED: + case DIFF_STATUS_TYPE_CHANGED: + if (add_file_to_index(&the_index, path, data->flags)) { + if (!(data->flags & ADD_CACHE_IGNORE_ERRORS)) + die(_("updating files failed")); + data->add_errors++; + } + break; + case DIFF_STATUS_DELETED: + if (data->flags & ADD_CACHE_IGNORE_REMOVAL) + break; + if (!(data->flags & ADD_CACHE_PRETEND)) + remove_file_from_index(&the_index, path); + if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE)) + printf(_("remove '%s'\n"), path); + break; + } + } +} + +int add_files_to_cache(const char *prefix, const char **pathspec, int flags) +{ + struct update_callback_data data; + struct rev_info rev; + init_revisions(&rev, prefix); + setup_revisions(0, NULL, &rev, NULL); + init_pathspec(&rev.prune_data, pathspec); + rev.diffopt.output_format = DIFF_FORMAT_CALLBACK; + rev.diffopt.format_callback = update_callback; + data.flags = flags; + data.add_errors = 0; + rev.diffopt.format_callback_data = &data; + rev.max_count = 0; /* do not compare unmerged paths with stage #2 */ + run_diff_files(&rev, DIFF_RACY_IS_MODIFIED); + return !!data.add_errors; +} + +static void fill_pathspec_matches(const char **pathspec, char *seen, int specs) +{ + int num_unmatched = 0, i; + + /* + * Since we are walking the index as if we were walking the directory, + * we have to mark the matched pathspec as seen; otherwise we will + * mistakenly think that the user gave a pathspec that did not match + * anything. + */ + for (i = 0; i < specs; i++) + if (!seen[i]) + num_unmatched++; + if (!num_unmatched) + return; + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_cache[i]; + match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen); + } +} + +static char *find_used_pathspec(const char **pathspec) +{ + char *seen; + int i; + + for (i = 0; pathspec[i]; i++) + ; /* just counting */ + seen = xcalloc(i, 1); + fill_pathspec_matches(pathspec, seen, i); + return seen; +} + +static char *prune_directory(struct dir_struct *dir, const char **pathspec, int prefix) +{ + char *seen; + int i, specs; + struct dir_entry **src, **dst; + + for (specs = 0; pathspec[specs]; specs++) + /* nothing */; + seen = xcalloc(specs, 1); + + src = dst = dir->entries; + i = dir->nr; + while (--i >= 0) { + struct dir_entry *entry = *src++; + if (match_pathspec(pathspec, entry->name, entry->len, + prefix, seen)) + *dst++ = entry; + } + dir->nr = dst - dir->entries; + fill_pathspec_matches(pathspec, seen, specs); + return seen; +} + +static void treat_gitlinks(const char **pathspec) +{ + int i; + + if (!pathspec || !*pathspec) + return; + + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_cache[i]; + if (S_ISGITLINK(ce->ce_mode)) { + int len = ce_namelen(ce), j; + for (j = 0; pathspec[j]; j++) { + int len2 = strlen(pathspec[j]); + if (len2 <= len || pathspec[j][len] != '/' || + memcmp(ce->name, pathspec[j], len)) + continue; + if (len2 == len + 1) + /* strip trailing slash */ + pathspec[j] = xstrndup(ce->name, len); + else + die (_("Path '%s' is in submodule '%.*s'"), + pathspec[j], len, ce->name); + } + } + } +} + +static void refresh(int verbose, const char **pathspec) +{ + char *seen; + int i, specs; + + for (specs = 0; pathspec[specs]; specs++) + /* nothing */; + seen = xcalloc(specs, 1); + refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET, + pathspec, seen, _("Unstaged changes after refreshing the index:")); + for (i = 0; i < specs; i++) { + if (!seen[i]) + die(_("pathspec '%s' did not match any files"), pathspec[i]); + } + free(seen); +} + +static const char **validate_pathspec(int argc, const char **argv, const char *prefix) +{ + const char **pathspec = get_pathspec(prefix, argv); + + if (pathspec) { + const char **p; + for (p = pathspec; *p; p++) { + if (has_symlink_leading_path(*p, strlen(*p))) { + int len = prefix ? strlen(prefix) : 0; + die(_("'%s' is beyond a symbolic link"), *p + len); + } + } + } + + return pathspec; +} + +int run_add_interactive(const char *revision, const char *patch_mode, + const char **pathspec) +{ + int status, ac, pc = 0; + const char **args; + + if (pathspec) + while (pathspec[pc]) + pc++; + + args = xcalloc(sizeof(const char *), (pc + 5)); + ac = 0; + args[ac++] = "add--interactive"; + if (patch_mode) + args[ac++] = patch_mode; + if (revision) + args[ac++] = revision; + args[ac++] = "--"; + if (pc) { + memcpy(&(args[ac]), pathspec, sizeof(const char *) * pc); + ac += pc; + } + args[ac] = NULL; + + status = run_command_v_opt(args, RUN_GIT_CMD); + free(args); + return status; +} + +int interactive_add(int argc, const char **argv, const char *prefix, int patch) +{ + const char **pathspec = NULL; + + if (argc) { + pathspec = validate_pathspec(argc, argv, prefix); + if (!pathspec) + return -1; + } + + return run_add_interactive(NULL, + patch ? "--patch" : NULL, + pathspec); +} + +static int edit_patch(int argc, const char **argv, const char *prefix) +{ + char *file = xstrdup(git_path("ADD_EDIT.patch")); + const char *apply_argv[] = { "apply", "--recount", "--cached", + NULL, NULL }; + struct child_process child; + struct rev_info rev; + int out; + struct stat st; + + apply_argv[3] = file; + + git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ + + if (read_cache() < 0) + die (_("Could not read the index")); + + init_revisions(&rev, prefix); + rev.diffopt.context = 7; + + argc = setup_revisions(argc, argv, &rev, NULL); + rev.diffopt.output_format = DIFF_FORMAT_PATCH; + DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES); + out = open(file, O_CREAT | O_WRONLY, 0644); + if (out < 0) + die (_("Could not open '%s' for writing."), file); + rev.diffopt.file = xfdopen(out, "w"); + rev.diffopt.close_file = 1; + if (run_diff_files(&rev, 0)) + die (_("Could not write patch")); + + launch_editor(file, NULL, NULL); + + if (stat(file, &st)) + die_errno(_("Could not stat '%s'"), file); + if (!st.st_size) + die(_("Empty patch. Aborted.")); + + memset(&child, 0, sizeof(child)); + child.git_cmd = 1; + child.argv = apply_argv; + if (run_command(&child)) + die (_("Could not apply '%s'"), file); + + unlink(file); + return 0; +} + +static struct lock_file lock_file; + +static const char ignore_error[] = +N_("The following paths are ignored by one of your .gitignore files:\n"); + +static int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0; +static int ignore_add_errors, addremove, intent_to_add, ignore_missing = 0; + +static struct option builtin_add_options[] = { + OPT__DRY_RUN(&show_only, "dry run"), + OPT__VERBOSE(&verbose, "be verbose"), + OPT_GROUP(""), + OPT_BOOLEAN('i', "interactive", &add_interactive, "interactive picking"), + OPT_BOOLEAN('p', "patch", &patch_interactive, "select hunks interactively"), + OPT_BOOLEAN('e', "edit", &edit_interactive, "edit current diff and apply"), + OPT__FORCE(&ignored_too, "allow adding otherwise ignored files"), + OPT_BOOLEAN('u', "update", &take_worktree_changes, "update tracked files"), + OPT_BOOLEAN('N', "intent-to-add", &intent_to_add, "record only the fact that the path will be added later"), + OPT_BOOLEAN('A', "all", &addremove, "add changes from all tracked and untracked files"), + OPT_BOOLEAN( 0 , "refresh", &refresh_only, "don't add, only refresh the index"), + OPT_BOOLEAN( 0 , "ignore-errors", &ignore_add_errors, "just skip files which cannot be added because of errors"), + OPT_BOOLEAN( 0 , "ignore-missing", &ignore_missing, "check if - even missing - files are ignored in dry run"), + OPT_END(), +}; + +static int add_config(const char *var, const char *value, void *cb) +{ + if (!strcmp(var, "add.ignoreerrors") || + !strcmp(var, "add.ignore-errors")) { + ignore_add_errors = git_config_bool(var, value); + return 0; + } + return git_default_config(var, value, cb); +} + +static int add_files(struct dir_struct *dir, int flags) +{ + int i, exit_status = 0; + + if (dir->ignored_nr) { + fprintf(stderr, _(ignore_error)); + for (i = 0; i < dir->ignored_nr; i++) + fprintf(stderr, "%s\n", dir->ignored[i]->name); + fprintf(stderr, _("Use -f if you really want to add them.\n")); + die(_("no files added")); + } + + for (i = 0; i < dir->nr; i++) + if (add_file_to_cache(dir->entries[i]->name, flags)) { + if (!ignore_add_errors) + die(_("adding files failed")); + exit_status = 1; + } + return exit_status; +} + +int cmd_add(int argc, const char **argv, const char *prefix) +{ + int exit_status = 0; + int newfd; + const char **pathspec; + struct dir_struct dir; + int flags; + int add_new_files; + int require_pathspec; + char *seen = NULL; + + git_config(add_config, NULL); + + argc = parse_options(argc, argv, prefix, builtin_add_options, + builtin_add_usage, PARSE_OPT_KEEP_ARGV0); + if (patch_interactive) + add_interactive = 1; + if (add_interactive) + exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive)); + + if (edit_interactive) + return(edit_patch(argc, argv, prefix)); + argc--; + argv++; + + if (addremove && take_worktree_changes) + die(_("-A and -u are mutually incompatible")); + if (!show_only && ignore_missing) + die(_("Option --ignore-missing can only be used together with --dry-run")); + if ((addremove || take_worktree_changes) && !argc) { + static const char *here[2] = { ".", NULL }; + argc = 1; + argv = here; + } + + add_new_files = !take_worktree_changes && !refresh_only; + require_pathspec = !take_worktree_changes; + + newfd = hold_locked_index(&lock_file, 1); + + flags = ((verbose ? ADD_CACHE_VERBOSE : 0) | + (show_only ? ADD_CACHE_PRETEND : 0) | + (intent_to_add ? ADD_CACHE_INTENT : 0) | + (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) | + (!(addremove || take_worktree_changes) + ? ADD_CACHE_IGNORE_REMOVAL : 0)); + + if (require_pathspec && argc == 0) { + fprintf(stderr, _("Nothing specified, nothing added.\n")); + fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n")); + return 0; + } + pathspec = validate_pathspec(argc, argv, prefix); + + if (read_cache() < 0) + die(_("index file corrupt")); + treat_gitlinks(pathspec); + + if (add_new_files) { + int baselen; + + /* Set up the default git porcelain excludes */ + memset(&dir, 0, sizeof(dir)); + if (!ignored_too) { + dir.flags |= DIR_COLLECT_IGNORED; + setup_standard_excludes(&dir); + } + + /* This picks up the paths that are not tracked */ + baselen = fill_directory(&dir, pathspec); + if (pathspec) + seen = prune_directory(&dir, pathspec, baselen); + } + + if (refresh_only) { + refresh(verbose, pathspec); + goto finish; + } + + if (pathspec) { + int i; + struct path_exclude_check check; + + path_exclude_check_init(&check, &dir); + if (!seen) + seen = find_used_pathspec(pathspec); + for (i = 0; pathspec[i]; i++) { + if (!seen[i] && pathspec[i][0] + && !file_exists(pathspec[i])) { + if (ignore_missing) { + int dtype = DT_UNKNOWN; + if (path_excluded(&check, pathspec[i], -1, &dtype)) + dir_add_ignored(&dir, pathspec[i], strlen(pathspec[i])); + } else + die(_("pathspec '%s' did not match any files"), + pathspec[i]); + } + } + free(seen); + path_exclude_check_clear(&check); + } + + plug_bulk_checkin(); + + exit_status |= add_files_to_cache(prefix, pathspec, flags); + + if (add_new_files) + exit_status |= add_files(&dir, flags); + + unplug_bulk_checkin(); + + finish: + if (active_cache_changed) { + if (write_cache(newfd, active_cache, active_nr) || + commit_locked_index(&lock_file)) + die(_("Unable to write new index file")); + } + + return exit_status; +} |