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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 "diff.h"
#include "diffcore.h"
#include "commit.h"
#include "revision.h"
static const char builtin_add_usage[] =
"git-add [-n] [-v] [-f] [--interactive | -i] [-u] [--refresh] [--] <filepattern>...";
static int take_worktree_changes;
static const char *excludes_file;
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;
for (i = 0; i < specs; i++) {
if (!seen[i] && !file_exists(pathspec[i]))
die("pathspec '%s' did not match any files",
pathspec[i]);
}
}
static void fill_directory(struct dir_struct *dir, const char **pathspec,
int ignored_too)
{
const char *path, *base;
int baselen;
/* Set up the default git porcelain excludes */
memset(dir, 0, sizeof(*dir));
if (!ignored_too) {
dir->collect_ignored = 1;
dir->exclude_per_dir = ".gitignore";
path = git_path("info/exclude");
if (!access(path, R_OK))
add_excludes_from_file(dir, path);
if (excludes_file != NULL && !access(excludes_file, R_OK))
add_excludes_from_file(dir, excludes_file);
}
/*
* Calculate common prefix for the pathspec, and
* use that to optimize the directory walk
*/
baselen = common_prefix(pathspec);
path = ".";
base = "";
if (baselen) {
char *common = xmalloc(baselen + 1);
memcpy(common, *pathspec, baselen);
common[baselen] = 0;
path = base = common;
}
/* Read the directory and prune it */
read_directory(dir, path, base, baselen, pathspec);
if (pathspec)
prune_directory(dir, pathspec, baselen);
}
static void update_callback(struct diff_queue_struct *q,
struct diff_options *opt, void *cbdata)
{
int i, verbose;
verbose = *((int *)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:
case DIFF_STATUS_MODIFIED:
case DIFF_STATUS_TYPE_CHANGED:
add_file_to_cache(path, verbose);
break;
case DIFF_STATUS_DELETED:
remove_file_from_cache(path);
cache_tree_invalidate_path(active_cache_tree, path);
if (verbose)
printf("remove '%s'\n", path);
break;
}
}
}
static void update(int verbose, const char *prefix, const char **files)
{
struct rev_info rev;
init_revisions(&rev, prefix);
setup_revisions(0, NULL, &rev, NULL);
rev.prune_data = get_pathspec(prefix, files);
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
rev.diffopt.format_callback_data = &verbose;
if (read_cache() < 0)
die("index file corrupt");
run_diff_files(&rev, 0);
}
static void refresh(int verbose, const char **pathspec)
{
char *seen;
int i, specs;
for (specs = 0; pathspec[specs]; specs++)
/* nothing */;
seen = xcalloc(specs, 1);
if (read_cache() < 0)
die("index file corrupt");
refresh_index(&the_index, verbose ? 0 : REFRESH_QUIET, pathspec, seen);
for (i = 0; i < specs; i++) {
if (!seen[i])
die("pathspec '%s' did not match any files", pathspec[i]);
}
}
static int git_add_config(const char *var, const char *value)
{
if (!strcmp(var, "core.excludesfile")) {
if (!value)
die("core.excludesfile without value");
excludes_file = xstrdup(value);
return 0;
}
return git_default_config(var, value);
}
static struct lock_file lock_file;
static const char ignore_error[] =
"The following paths are ignored by one of your .gitignore files:\n";
int cmd_add(int argc, const char **argv, const char *prefix)
{
int i, newfd;
int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
const char **pathspec;
struct dir_struct dir;
int add_interactive = 0;
for (i = 1; i < argc; i++) {
if (!strcmp("--interactive", argv[i]) ||
!strcmp("-i", argv[i]))
add_interactive++;
}
if (add_interactive) {
const char *args[] = { "add--interactive", NULL };
if (add_interactive != 1 || argc != 2)
die("add --interactive does not take any parameters");
execv_git_cmd(args);
exit(1);
}
git_config(git_add_config);
newfd = hold_locked_index(&lock_file, 1);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-')
break;
if (!strcmp(arg, "--")) {
i++;
break;
}
if (!strcmp(arg, "-n")) {
show_only = 1;
continue;
}
if (!strcmp(arg, "-f")) {
ignored_too = 1;
continue;
}
if (!strcmp(arg, "-v")) {
verbose = 1;
continue;
}
if (!strcmp(arg, "-u")) {
take_worktree_changes = 1;
continue;
}
if (!strcmp(arg, "--refresh")) {
refresh_only = 1;
continue;
}
usage(builtin_add_usage);
}
if (take_worktree_changes) {
update(verbose, prefix, argv + i);
goto finish;
}
if (argc <= i) {
fprintf(stderr, "Nothing specified, nothing added.\n");
fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
return 0;
}
pathspec = get_pathspec(prefix, argv + i);
if (refresh_only) {
refresh(verbose, pathspec);
goto finish;
}
fill_directory(&dir, pathspec, ignored_too);
if (show_only) {
const char *sep = "", *eof = "";
for (i = 0; i < dir.nr; i++) {
printf("%s%s", sep, dir.entries[i]->name);
sep = " ";
eof = "\n";
}
fputs(eof, stdout);
return 0;
}
if (read_cache() < 0)
die("index file corrupt");
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++)
add_file_to_cache(dir.entries[i]->name, verbose);
finish:
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
close(newfd) || commit_locked_index(&lock_file))
die("Unable to write new index file");
}
return 0;
}
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