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/*
* "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"
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 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 (p->status) {
default:
die("unexpected diff status %c", p->status);
case DIFF_STATUS_UNMERGED:
/*
* ADD_CACHE_IGNORE_REMOVAL is unset if "git
* add -u" is calling us, In such a case, a
* missing work tree file needs to be removed
* if there is an unmerged entry at stage #2,
* but such a diff record is followed by
* another with DIFF_STATUS_DELETED (and if
* there is no stage #2, we won't see DELETED
* nor MODIFIED). We can simply continue
* either way.
*/
if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL))
continue;
/*
* Otherwise, it is "git add path" is asking
* to explicitly add it; we fall through. A
* missing work tree file is an error and is
* caught by add_file_to_index() in such a
* case.
*/
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);
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;
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 void 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);
for (i = 0; i < specs; i++) {
if (!seen[i] && pathspec[i][0] && !file_exists(pathspec[i]))
die("pathspec '%s' did not match any files",
pathspec[i]);
}
free(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)
{
const char **pathspec = NULL;
if (argc) {
pathspec = validate_pathspec(argc, argv, prefix);
if (!pathspec)
return -1;
}
return run_add_interactive(NULL,
patch_interactive ? "--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",
file, NULL };
struct child_process child;
struct rev_info rev;
int out;
struct stat st;
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;
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[] =
"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;
static struct option builtin_add_options[] = {
OPT__DRY_RUN(&show_only),
OPT__VERBOSE(&verbose),
OPT_GROUP(""),
OPT_BOOLEAN('i', "interactive", &add_interactive, "interactive picking"),
OPT_BOOLEAN('p', "patch", &patch_interactive, "interactive patching"),
OPT_BOOLEAN('e', "edit", &edit_interactive, "edit current diff and apply"),
OPT_BOOLEAN('f', "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 all, noticing removal of tracked 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_END(),
};
static int add_config(const char *var, const char *value, void *cb)
{
if (!strcasecmp(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;
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));
if (edit_interactive)
return(edit_patch(argc, argv, prefix));
argc--;
argv++;
if (addremove && take_worktree_changes)
die("-A and -u are mutually incompatible");
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)
prune_directory(&dir, pathspec, baselen);
}
if (refresh_only) {
refresh(verbose, pathspec);
goto finish;
}
exit_status |= add_files_to_cache(prefix, pathspec, flags);
if (add_new_files)
exit_status |= add_files(&dir, flags);
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;
}
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