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![Nguyễn Thái Ngọc Duy](/assets/img/avatar_default.png)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
594 lines
17 KiB
C
594 lines
17 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 "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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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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struct update_callback_data {
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int flags;
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int add_errors;
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const char *implicit_dot;
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size_t implicit_dot_len;
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/* only needed for 2.0 transition preparation */
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int warn_add_would_remove;
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};
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static const char *option_with_implicit_dot;
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static const char *short_option_with_implicit_dot;
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static void warn_pathless_add(void)
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{
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static int shown;
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assert(option_with_implicit_dot && short_option_with_implicit_dot);
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if (shown)
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return;
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shown = 1;
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/*
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* To be consistent with "git add -p" and most Git
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* commands, we should default to being tree-wide, but
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* this is not the original behavior and can't be
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* changed until users trained themselves not to type
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* "git add -u" or "git add -A". For now, we warn and
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* keep the old behavior. Later, the behavior can be changed
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* to tree-wide, keeping the warning for a while, and
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* eventually we can drop the warning.
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*/
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warning(_("The behavior of 'git add %s (or %s)' with no path argument from a\n"
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"subdirectory of the tree will change in Git 2.0 and should not be used anymore.\n"
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"To add content for the whole tree, run:\n"
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"\n"
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" git add %s :/\n"
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" (or git add %s :/)\n"
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"\n"
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"To restrict the command to the current directory, run:\n"
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"\n"
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" git add %s .\n"
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" (or git add %s .)\n"
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"\n"
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"With the current Git version, the command is restricted to "
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"the current directory.\n"
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""),
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option_with_implicit_dot, short_option_with_implicit_dot,
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option_with_implicit_dot, short_option_with_implicit_dot,
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option_with_implicit_dot, short_option_with_implicit_dot);
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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 const char *add_would_remove_warning = N_(
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"You ran 'git add' with neither '-A (--all)' or '--ignore-removal',\n"
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"whose behaviour will change in Git 2.0 with respect to paths you removed.\n"
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"Paths like '%s' that are\n"
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"removed from your working tree are ignored with this version of Git.\n"
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"\n"
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"* 'git add --ignore-removal <pathspec>', which is the current default,\n"
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" ignores paths you removed from your working tree.\n"
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"\n"
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"* 'git add --all <pathspec>' will let you also record the removals.\n"
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"\n"
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"Run 'git status' to check the paths you removed from your working tree.\n");
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static void warn_add_would_remove(const char *path)
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{
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warning(_(add_would_remove_warning), path);
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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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const char *implicit_dot = data->implicit_dot;
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size_t implicit_dot_len = data->implicit_dot_len;
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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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/*
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* Check if "git add -A" or "git add -u" was run from a
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* subdirectory with a modified file outside that directory,
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* and warn if so.
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*
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* "git add -u" will behave like "git add -u :/" instead of
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* "git add -u ." in the future. This warning prepares for
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* that change.
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*/
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if (implicit_dot &&
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strncmp_icase(path, implicit_dot, implicit_dot_len)) {
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warn_pathless_add();
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continue;
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}
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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->warn_add_would_remove) {
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warn_add_would_remove(path);
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data->warn_add_would_remove = 0;
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}
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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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static void update_files_in_cache(const char *prefix,
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const struct pathspec *pathspec,
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struct update_callback_data *data)
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{
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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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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.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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}
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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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memset(&data, 0, sizeof(data));
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data.flags = flags;
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update_files_in_cache(prefix, pathspec, &data);
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return !!data.add_errors;
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}
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#define WARN_IMPLICIT_DOT (1u << 0)
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static char *prune_directory(struct dir_struct *dir, const char **pathspec,
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int prefix, unsigned flag)
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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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else if (flag & WARN_IMPLICIT_DOT)
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/*
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* "git add -A" was run from a subdirectory with a
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* new file outside that directory.
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*
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* "git add -A" will behave like "git add -A :/"
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* instead of "git add -A ." in the future.
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* Warn about the coming behavior change.
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*/
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warn_pathless_add();
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}
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dir->nr = dst - dir->entries;
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add_pathspec_matches_against_index(pathspec, seen, specs);
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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, ac, i;
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const char **args;
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args = xcalloc(sizeof(const char *), (pathspec->nr + 6));
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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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for (i = 0; i < pathspec->nr; i++)
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/* pass original pathspec, to be re-parsed */
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args[ac++] = pathspec->items[i].original;
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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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struct pathspec pathspec;
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/*
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* git-add--interactive itself does not parse pathspec. It
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* simply passes the pathspec to other builtin commands. Let's
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* hope all of them support all magic, or we'll need to limit
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* the magic here.
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*/
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parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP,
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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;
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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, 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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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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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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#define ADDREMOVE_DEFAULT 0 /* Change to 1 in Git 2.0 */
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static int addremove = ADDREMOVE_DEFAULT;
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static int addremove_explicit = -1; /* unspecified */
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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")),
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OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")),
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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_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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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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int implicit_dot = 0;
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struct update_callback_data update_data;
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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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/*
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* Warn when "git add pathspec..." was given without "-u" or "-A"
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* and pathspec... covers a removed path.
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*/
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memset(&update_data, 0, sizeof(update_data));
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if (!take_worktree_changes && addremove_explicit < 0)
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update_data.warn_add_would_remove = 1;
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if (!take_worktree_changes && addremove_explicit < 0 && argc)
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/*
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* Turn "git add pathspec..." to "git add -A pathspec..."
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* in Git 2.0 but not yet
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*/
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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 (addremove) {
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option_with_implicit_dot = "--all";
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short_option_with_implicit_dot = "-A";
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}
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if (take_worktree_changes) {
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option_with_implicit_dot = "--update";
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short_option_with_implicit_dot = "-u";
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}
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if (option_with_implicit_dot && !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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implicit_dot = 1;
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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) |
|
|
(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.raw, 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.raw);
|
|
|
|
/*
|
|
* file_exists() assumes exact match
|
|
*/
|
|
GUARD_PATHSPEC(&pathspec, PATHSPEC_FROMTOP);
|
|
|
|
for (i = 0; pathspec.raw[i]; i++) {
|
|
if (!seen[i] && pathspec.raw[i][0]
|
|
&& !file_exists(pathspec.raw[i])) {
|
|
if (ignore_missing) {
|
|
int dtype = DT_UNKNOWN;
|
|
if (is_excluded(&dir, pathspec.raw[i], &dtype))
|
|
dir_add_ignored(&dir, pathspec.raw[i], strlen(pathspec.raw[i]));
|
|
} else
|
|
die(_("pathspec '%s' did not match any files"),
|
|
pathspec.raw[i]);
|
|
}
|
|
}
|
|
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;
|
|
}
|