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![Johannes Schindelin](/assets/img/avatar_default.png)
When the HEAD of the submodule matches what is recorded in the index of the superproject, and it has local changes or untracked files, the patch offered by "git add -e" for editing shows a diff like this: diff --git a/submodule b/submodule <header> -deadbeef... +deadbeef...-dirty Because applying such a patch has no effect to the index, this is a useless noise. Generate the patch with IGNORE_DIRTY_SUBMODULES flag to prevent such a change from getting reported. This patch also loses the "-dirty" suffix from the output when the HEAD of the submodule is different from what is in the index of the superproject. As such dirtiness expressed by the suffix does not affect the result of the patch application at all, there is no information lost if we remove it. The user could still run "git status" before "git add -e" if s/he cares about the dirtiness. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
476 lines
12 KiB
C
476 lines
12 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 "builtin.h"
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#include "dir.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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static const char * const builtin_add_usage[] = {
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"git add [options] [--] <filepattern>...",
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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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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 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, const char **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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init_revisions(&rev, prefix);
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setup_revisions(0, NULL, &rev, NULL);
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init_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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data.flags = flags;
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data.add_errors = 0;
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rev.diffopt.format_callback_data = &data;
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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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return !!data.add_errors;
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}
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static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
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{
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int num_unmatched = 0, i;
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/*
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* Since we are walking the index as if we were walking the directory,
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* we have to mark the matched pathspec as seen; otherwise we will
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* mistakenly think that the user gave a pathspec that did not match
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* anything.
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*/
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for (i = 0; i < specs; i++)
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if (!seen[i])
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num_unmatched++;
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if (!num_unmatched)
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return;
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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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match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen);
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}
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}
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static char *find_used_pathspec(const char **pathspec)
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{
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char *seen;
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int i;
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for (i = 0; pathspec[i]; i++)
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; /* just counting */
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seen = xcalloc(i, 1);
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fill_pathspec_matches(pathspec, seen, i);
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return seen;
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}
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static char *prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
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{
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char *seen;
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int i, specs;
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struct dir_entry **src, **dst;
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for (specs = 0; pathspec[specs]; specs++)
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/* nothing */;
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seen = xcalloc(specs, 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 (match_pathspec(pathspec, entry->name, entry->len,
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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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fill_pathspec_matches(pathspec, seen, specs);
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return seen;
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}
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static void treat_gitlinks(const char **pathspec)
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{
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int i;
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if (!pathspec || !*pathspec)
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return;
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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 (S_ISGITLINK(ce->ce_mode)) {
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int len = ce_namelen(ce), j;
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for (j = 0; pathspec[j]; j++) {
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int len2 = strlen(pathspec[j]);
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if (len2 <= len || pathspec[j][len] != '/' ||
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memcmp(ce->name, pathspec[j], len))
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continue;
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if (len2 == len + 1)
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/* strip trailing slash */
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pathspec[j] = xstrndup(ce->name, len);
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else
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die (_("Path '%s' is in submodule '%.*s'"),
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pathspec[j], len, ce->name);
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}
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}
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}
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}
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static void refresh(int verbose, const char **pathspec)
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{
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char *seen;
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int i, specs;
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for (specs = 0; pathspec[specs]; specs++)
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/* nothing */;
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seen = xcalloc(specs, 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 < specs; i++) {
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if (!seen[i])
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die(_("pathspec '%s' did not match any files"), pathspec[i]);
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}
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free(seen);
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}
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static const char **validate_pathspec(int argc, const char **argv, const char *prefix)
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{
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const char **pathspec = get_pathspec(prefix, argv);
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if (pathspec) {
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const char **p;
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for (p = pathspec; *p; p++) {
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if (has_symlink_leading_path(*p, strlen(*p))) {
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int len = prefix ? strlen(prefix) : 0;
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die(_("'%s' is beyond a symbolic link"), *p + len);
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}
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}
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}
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return pathspec;
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}
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int run_add_interactive(const char *revision, const char *patch_mode,
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const char **pathspec)
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{
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int status, ac, pc = 0;
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const char **args;
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if (pathspec)
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while (pathspec[pc])
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pc++;
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args = xcalloc(sizeof(const char *), (pc + 5));
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ac = 0;
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args[ac++] = "add--interactive";
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if (patch_mode)
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args[ac++] = patch_mode;
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if (revision)
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args[ac++] = revision;
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args[ac++] = "--";
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if (pc) {
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memcpy(&(args[ac]), pathspec, sizeof(const char *) * pc);
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ac += pc;
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}
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args[ac] = NULL;
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status = run_command_v_opt(args, RUN_GIT_CMD);
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free(args);
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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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const char **pathspec = NULL;
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if (argc) {
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pathspec = validate_pathspec(argc, argv, prefix);
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if (!pathspec)
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return -1;
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}
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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 = xstrdup(git_path("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;
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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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DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES);
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out = open(file, O_CREAT | O_WRONLY, 0644);
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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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launch_editor(file, NULL, NULL);
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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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memset(&child, 0, sizeof(child));
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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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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 = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
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static int ignore_add_errors, addremove, intent_to_add, ignore_missing = 0;
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static struct option builtin_add_options[] = {
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OPT__DRY_RUN(&show_only, "dry run"),
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OPT__VERBOSE(&verbose, "be verbose"),
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OPT_GROUP(""),
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OPT_BOOLEAN('i', "interactive", &add_interactive, "interactive picking"),
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OPT_BOOLEAN('p', "patch", &patch_interactive, "select hunks interactively"),
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OPT_BOOLEAN('e', "edit", &edit_interactive, "edit current diff and apply"),
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OPT__FORCE(&ignored_too, "allow adding otherwise ignored files"),
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OPT_BOOLEAN('u', "update", &take_worktree_changes, "update tracked files"),
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OPT_BOOLEAN('N', "intent-to-add", &intent_to_add, "record only the fact that the path will be added later"),
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OPT_BOOLEAN('A', "all", &addremove, "add changes from all tracked and untracked files"),
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OPT_BOOLEAN( 0 , "refresh", &refresh_only, "don't add, only refresh the index"),
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OPT_BOOLEAN( 0 , "ignore-errors", &ignore_add_errors, "just skip files which cannot be added because of errors"),
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OPT_BOOLEAN( 0 , "ignore-missing", &ignore_missing, "check if - even missing - files are ignored in dry run"),
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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 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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die(_("no files added"));
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}
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for (i = 0; i < dir->nr; i++)
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if (add_file_to_cache(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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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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int newfd;
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const char **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 (addremove && take_worktree_changes)
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die(_("-A and -u are mutually incompatible"));
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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 ((addremove || take_worktree_changes) && !argc) {
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static const char *here[2] = { ".", NULL };
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argc = 1;
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argv = here;
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}
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add_new_files = !take_worktree_changes && !refresh_only;
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require_pathspec = !take_worktree_changes;
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newfd = hold_locked_index(&lock_file, 1);
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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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pathspec = validate_pathspec(argc, argv, prefix);
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if (read_cache() < 0)
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die(_("index file corrupt"));
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treat_gitlinks(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, pathspec);
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if (pathspec)
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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) {
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int i;
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if (!seen)
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seen = find_used_pathspec(pathspec);
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for (i = 0; pathspec[i]; i++) {
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if (!seen[i] && pathspec[i][0]
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&& !file_exists(pathspec[i])) {
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if (ignore_missing) {
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int dtype = DT_UNKNOWN;
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if (excluded(&dir, pathspec[i], &dtype))
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dir_add_ignored(&dir, pathspec[i], strlen(pathspec[i]));
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} else
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die(_("pathspec '%s' did not match any files"),
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pathspec[i]);
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}
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}
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free(seen);
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}
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exit_status |= add_files_to_cache(prefix, pathspec, flags);
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if (add_new_files)
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exit_status |= add_files(&dir, flags);
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finish:
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if (active_cache_changed) {
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if (write_cache(newfd, active_cache, active_nr) ||
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commit_locked_index(&lock_file))
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die(_("Unable to write new index file"));
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}
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return exit_status;
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}
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