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/*
* "git add" builtin command
*
* Copyright (C) 2006 Linus Torvalds
*/
#include "cache.h"
#include "builtin.h"
#include "dir.h"
#include "cache-tree.h"
static const char builtin_add_usage[] =
"git-add [-n] [-v] <filepattern>...";
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)) {
free(entry);
continue;
}
*dst++ = entry;
}
dir->nr = dst - dir->entries;
for (i = 0; i < specs; i++) {
struct stat st;
const char *match;
if (seen[i])
continue;
/* Existing file? We must have ignored it */
match = pathspec[i];
if (!match[0] || !lstat(match, &st))
continue;
die("pathspec '%s' did not match any files", match);
}
}
static void fill_directory(struct dir_struct *dir, const char **pathspec)
{
const char *path, *base;
int baselen;
/* Set up the default git porcelain excludes */
memset(dir, 0, sizeof(*dir));
dir->exclude_per_dir = ".gitignore";
path = git_path("info/exclude");
if (!access(path, R_OK))
add_excludes_from_file(dir, path);
/*
* 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);
if (pathspec)
prune_directory(dir, pathspec, baselen);
}
static struct lock_file lock_file;
int cmd_add(int argc, const char **argv, const char *prefix)
{
int i, newfd;
int verbose = 0, show_only = 0;
const char **pathspec;
struct dir_struct dir;
git_config(git_default_config);
newfd = hold_lock_file_for_update(&lock_file, get_index_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, "-v")) {
verbose = 1;
continue;
}
usage(builtin_add_usage);
}
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);
fill_directory(&dir, pathspec);
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");
for (i = 0; i < dir.nr; i++)
add_file_to_index(dir.entries[i]->name, verbose);
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
close(newfd) || commit_lock_file(&lock_file))
die("Unable to write new index file");
}
return 0;
}
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