diff options
Diffstat (limited to 'builtin/add.c')
| -rw-r--r-- | builtin/add.c | 593 |
1 files changed, 593 insertions, 0 deletions
diff --git a/builtin/add.c b/builtin/add.c new file mode 100644 index 0000000000..226f758869 --- /dev/null +++ b/builtin/add.c @@ -0,0 +1,593 @@ +/* + * "git add" builtin command + * + * Copyright (C) 2006 Linus Torvalds + */ +#include "cache.h" +#include "builtin.h" +#include "dir.h" +#include "pathspec.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[] = { + N_("git add [options] [--] <pathspec>..."), + NULL +}; +static int patch_interactive, add_interactive, edit_interactive; +static int take_worktree_changes; + +struct update_callback_data { + int flags; + int add_errors; + const char *implicit_dot; + size_t implicit_dot_len; + + /* only needed for 2.0 transition preparation */ + int warn_add_would_remove; +}; + +static const char *option_with_implicit_dot; +static const char *short_option_with_implicit_dot; + +static void warn_pathless_add(void) +{ + static int shown; + assert(option_with_implicit_dot && short_option_with_implicit_dot); + + if (shown) + return; + shown = 1; + + /* + * To be consistent with "git add -p" and most Git + * commands, we should default to being tree-wide, but + * this is not the original behavior and can't be + * changed until users trained themselves not to type + * "git add -u" or "git add -A". For now, we warn and + * keep the old behavior. Later, the behavior can be changed + * to tree-wide, keeping the warning for a while, and + * eventually we can drop the warning. + */ + warning(_("The behavior of 'git add %s (or %s)' with no path argument from a\n" + "subdirectory of the tree will change in Git 2.0 and should not be used anymore.\n" + "To add content for the whole tree, run:\n" + "\n" + " git add %s :/\n" + " (or git add %s :/)\n" + "\n" + "To restrict the command to the current directory, run:\n" + "\n" + " git add %s .\n" + " (or git add %s .)\n" + "\n" + "With the current Git version, the command is restricted to " + "the current directory.\n" + ""), + option_with_implicit_dot, short_option_with_implicit_dot, + option_with_implicit_dot, short_option_with_implicit_dot, + option_with_implicit_dot, short_option_with_implicit_dot); +} + +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 const char *add_would_remove_warning = N_( + "You ran 'git add' with neither '-A (--all)' or '--ignore-removal',\n" +"whose behaviour will change in Git 2.0 with respect to paths you removed.\n" +"Paths like '%s' that are\n" +"removed from your working tree are ignored with this version of Git.\n" +"\n" +"* 'git add --ignore-removal <pathspec>', which is the current default,\n" +" ignores paths you removed from your working tree.\n" +"\n" +"* 'git add --all <pathspec>' will let you also record the removals.\n" +"\n" +"Run 'git status' to check the paths you removed from your working tree.\n"); + +static void warn_add_would_remove(const char *path) +{ + warning(_(add_would_remove_warning), path); +} + +static void update_callback(struct diff_queue_struct *q, + struct diff_options *opt, void *cbdata) +{ + int i; + struct update_callback_data *data = cbdata; + const char *implicit_dot = data->implicit_dot; + size_t implicit_dot_len = data->implicit_dot_len; + + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + const char *path = p->one->path; + /* + * Check if "git add -A" or "git add -u" was run from a + * subdirectory with a modified file outside that directory, + * and warn if so. + * + * "git add -u" will behave like "git add -u :/" instead of + * "git add -u ." in the future. This warning prepares for + * that change. + */ + if (implicit_dot && + strncmp_icase(path, implicit_dot, implicit_dot_len)) { + warn_pathless_add(); + continue; + } + 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->warn_add_would_remove) { + warn_add_would_remove(path); + data->warn_add_would_remove = 0; + } + 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; + } + } +} + +static void update_files_in_cache(const char *prefix, + const struct pathspec *pathspec, + struct update_callback_data *data) +{ + struct rev_info rev; + + init_revisions(&rev, prefix); + setup_revisions(0, NULL, &rev, NULL); + if (pathspec) + copy_pathspec(&rev.prune_data, pathspec); + rev.diffopt.output_format = DIFF_FORMAT_CALLBACK; + rev.diffopt.format_callback = update_callback; + 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); +} + +int add_files_to_cache(const char *prefix, + const struct pathspec *pathspec, int flags) +{ + struct update_callback_data data; + + memset(&data, 0, sizeof(data)); + data.flags = flags; + update_files_in_cache(prefix, pathspec, &data); + return !!data.add_errors; +} + +#define WARN_IMPLICIT_DOT (1u << 0) +static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, + int prefix, unsigned flag) +{ + char *seen; + int i; + struct dir_entry **src, **dst; + + seen = xcalloc(pathspec->nr, 1); + + src = dst = dir->entries; + i = dir->nr; + while (--i >= 0) { + struct dir_entry *entry = *src++; + if (match_pathspec_depth(pathspec, entry->name, entry->len, + prefix, seen)) + *dst++ = entry; + else if (flag & WARN_IMPLICIT_DOT) + /* + * "git add -A" was run from a subdirectory with a + * new file outside that directory. + * + * "git add -A" will behave like "git add -A :/" + * instead of "git add -A ." in the future. + * Warn about the coming behavior change. + */ + warn_pathless_add(); + } + dir->nr = dst - dir->entries; + add_pathspec_matches_against_index(pathspec, seen); + return seen; +} + +static void refresh(int verbose, const struct pathspec *pathspec) +{ + char *seen; + int i; + + seen = xcalloc(pathspec->nr, 1); + refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET, + pathspec, seen, _("Unstaged changes after refreshing the index:")); + for (i = 0; i < pathspec->nr; i++) { + if (!seen[i]) + die(_("pathspec '%s' did not match any files"), + pathspec->items[i].match); + } + free(seen); +} + +int run_add_interactive(const char *revision, const char *patch_mode, + const struct pathspec *pathspec) +{ + int status, ac, i; + const char **args; + + args = xcalloc(sizeof(const char *), (pathspec->nr + 6)); + ac = 0; + args[ac++] = "add--interactive"; + if (patch_mode) + args[ac++] = patch_mode; + if (revision) + args[ac++] = revision; + args[ac++] = "--"; + for (i = 0; i < pathspec->nr; i++) + /* pass original pathspec, to be re-parsed */ + args[ac++] = pathspec->items[i].original; + + 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) +{ + struct pathspec pathspec; + + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_FULL | + PATHSPEC_SYMLINK_LEADING_PATH | + PATHSPEC_PREFIX_ORIGIN, + prefix, argv); + + return run_add_interactive(NULL, + patch ? "--patch" : NULL, + &pathspec); +} + +static int edit_patch(int argc, const char **argv, const char *prefix) +{ + char *file = git_pathdup("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; + rev.diffopt.use_color = 0; + DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES); + out = open(file, O_CREAT | O_WRONLY, 0666); + 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); + free(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, show_only, ignored_too, refresh_only; +static int ignore_add_errors, intent_to_add, ignore_missing; + +#define ADDREMOVE_DEFAULT 0 /* Change to 1 in Git 2.0 */ +static int addremove = ADDREMOVE_DEFAULT; +static int addremove_explicit = -1; /* unspecified */ + +static int ignore_removal_cb(const struct option *opt, const char *arg, int unset) +{ + /* if we are told to ignore, we are not adding removals */ + *(int *)opt->value = !unset ? 0 : 1; + return 0; +} + +static struct option builtin_add_options[] = { + OPT__DRY_RUN(&show_only, N_("dry run")), + OPT__VERBOSE(&verbose, N_("be verbose")), + OPT_GROUP(""), + OPT_BOOL('i', "interactive", &add_interactive, N_("interactive picking")), + OPT_BOOL('p', "patch", &patch_interactive, N_("select hunks interactively")), + OPT_BOOL('e', "edit", &edit_interactive, N_("edit current diff and apply")), + OPT__FORCE(&ignored_too, N_("allow adding otherwise ignored files")), + OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")), + OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that the path will be added later")), + OPT_BOOL('A', "all", &addremove_explicit, N_("add changes from all tracked and untracked files")), + { OPTION_CALLBACK, 0, "ignore-removal", &addremove_explicit, + NULL /* takes no arguments */, + N_("ignore paths removed in the working tree (same as --no-all)"), + PARSE_OPT_NOARG, ignore_removal_cb }, + OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the index")), + OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files which cannot be added because of errors")), + OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("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; + struct pathspec pathspec; + struct dir_struct dir; + int flags; + int add_new_files; + int require_pathspec; + char *seen = NULL; + int implicit_dot = 0; + struct update_callback_data update_data; + + 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 (0 <= addremove_explicit) + addremove = addremove_explicit; + else if (take_worktree_changes && ADDREMOVE_DEFAULT) + addremove = 0; /* "-u" was given but not "-A" */ + + if (addremove && take_worktree_changes) + die(_("-A and -u are mutually incompatible")); + + /* + * Warn when "git add pathspec..." was given without "-u" or "-A" + * and pathspec... covers a removed path. + */ + memset(&update_data, 0, sizeof(update_data)); + if (!take_worktree_changes && addremove_explicit < 0) + update_data.warn_add_would_remove = 1; + + if (!take_worktree_changes && addremove_explicit < 0 && argc) + /* + * Turn "git add pathspec..." to "git add -A pathspec..." + * in Git 2.0 but not yet + */ + ; /* addremove = 1; */ + + if (!show_only && ignore_missing) + die(_("Option --ignore-missing can only be used together with --dry-run")); + if (addremove) { + option_with_implicit_dot = "--all"; + short_option_with_implicit_dot = "-A"; + } + if (take_worktree_changes) { + option_with_implicit_dot = "--update"; + short_option_with_implicit_dot = "-u"; + } + if (option_with_implicit_dot && !argc) { + static const char *here[2] = { ".", NULL }; + argc = 1; + argv = here; + implicit_dot = 1; + } + + 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)) | + (implicit_dot ? ADD_CACHE_IMPLICIT_DOT : 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; + } + + if (read_cache() < 0) + die(_("index file corrupt")); + + /* + * Check the "pathspec '%s' did not match any files" block + * below before enabling new magic. + */ + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_FULL | + PATHSPEC_SYMLINK_LEADING_PATH | + PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE, + prefix, argv); + + if (add_new_files) { + int baselen; + struct pathspec empty_pathspec; + + /* Set up the default git porcelain excludes */ + memset(&dir, 0, sizeof(dir)); + if (!ignored_too) { + dir.flags |= DIR_COLLECT_IGNORED; + setup_standard_excludes(&dir); + } + + memset(&empty_pathspec, 0, sizeof(empty_pathspec)); + /* This picks up the paths that are not tracked */ + baselen = fill_directory(&dir, implicit_dot ? &empty_pathspec : &pathspec); + if (pathspec.nr) + seen = prune_directory(&dir, &pathspec, baselen, + implicit_dot ? WARN_IMPLICIT_DOT : 0); + } + + if (refresh_only) { + refresh(verbose, &pathspec); + goto finish; + } + if (implicit_dot && prefix) + refresh_cache(REFRESH_QUIET); + + if (pathspec.nr) { + int i; + + if (!seen) + seen = find_pathspecs_matching_against_index(&pathspec); + + /* + * file_exists() assumes exact match + */ + GUARD_PATHSPEC(&pathspec, + PATHSPEC_FROMTOP | + PATHSPEC_LITERAL | + PATHSPEC_GLOB | + PATHSPEC_ICASE); + + for (i = 0; i < pathspec.nr; i++) { + const char *path = pathspec.items[i].match; + if (!seen[i] && + ((pathspec.items[i].magic & + (PATHSPEC_GLOB | PATHSPEC_ICASE)) || + !file_exists(path))) { + if (ignore_missing) { + int dtype = DT_UNKNOWN; + if (is_excluded(&dir, path, &dtype)) + dir_add_ignored(&dir, path, pathspec.items[i].len); + } else + die(_("pathspec '%s' did not match any files"), + pathspec.items[i].original); + } + } + free(seen); + } + + plug_bulk_checkin(); + + if ((flags & ADD_CACHE_IMPLICIT_DOT) && prefix) { + /* + * Check for modified files throughout the worktree so + * update_callback has a chance to warn about changes + * outside the cwd. + */ + update_data.implicit_dot = prefix; + update_data.implicit_dot_len = strlen(prefix); + free_pathspec(&pathspec); + memset(&pathspec, 0, sizeof(pathspec)); + } + update_data.flags = flags & ~ADD_CACHE_IMPLICIT_DOT; + update_files_in_cache(prefix, &pathspec, &update_data); + + exit_status |= !!update_data.add_errors; + 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; +} |