mirror of
https://github.com/git/git
synced 2024-08-28 20:20:07 +00:00
![Elijah Newren](/assets/img/avatar_default.png)
For the functions defined in read-cache.c, move their declarations from cache.h to a new header, read-cache-ll.h. Also move some related inline functions from cache.h to read-cache.h. The purpose of the read-cache-ll.h/read-cache.h split is that about 70% of the sites don't need the inline functions and the extra headers they include. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
340 lines
8.8 KiB
C
340 lines
8.8 KiB
C
/*
|
|
* Check-out files from the "current cache directory"
|
|
*
|
|
* Copyright (C) 2005 Linus Torvalds
|
|
*
|
|
*/
|
|
#define USE_THE_INDEX_VARIABLE
|
|
#include "builtin.h"
|
|
#include "config.h"
|
|
#include "dir.h"
|
|
#include "gettext.h"
|
|
#include "lockfile.h"
|
|
#include "quote.h"
|
|
#include "repository.h"
|
|
#include "cache-tree.h"
|
|
#include "parse-options.h"
|
|
#include "entry.h"
|
|
#include "parallel-checkout.h"
|
|
#include "read-cache-ll.h"
|
|
#include "setup.h"
|
|
#include "sparse-index.h"
|
|
|
|
#define CHECKOUT_ALL 4
|
|
static int nul_term_line;
|
|
static int checkout_stage; /* default to checkout stage0 */
|
|
static int ignore_skip_worktree; /* default to 0 */
|
|
static int to_tempfile;
|
|
static char topath[4][TEMPORARY_FILENAME_LENGTH + 1];
|
|
|
|
static struct checkout state = CHECKOUT_INIT;
|
|
|
|
static void write_tempfile_record(const char *name, const char *prefix)
|
|
{
|
|
int i;
|
|
int have_tempname = 0;
|
|
|
|
if (CHECKOUT_ALL == checkout_stage) {
|
|
for (i = 1; i < 4; i++)
|
|
if (topath[i][0]) {
|
|
have_tempname = 1;
|
|
break;
|
|
}
|
|
|
|
if (have_tempname) {
|
|
for (i = 1; i < 4; i++) {
|
|
if (i > 1)
|
|
putchar(' ');
|
|
if (topath[i][0])
|
|
fputs(topath[i], stdout);
|
|
else
|
|
putchar('.');
|
|
}
|
|
}
|
|
} else if (topath[checkout_stage][0]) {
|
|
have_tempname = 1;
|
|
fputs(topath[checkout_stage], stdout);
|
|
}
|
|
|
|
if (have_tempname) {
|
|
putchar('\t');
|
|
write_name_quoted_relative(name, prefix, stdout,
|
|
nul_term_line ? '\0' : '\n');
|
|
}
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
topath[i][0] = 0;
|
|
}
|
|
}
|
|
|
|
static int checkout_file(const char *name, const char *prefix)
|
|
{
|
|
int namelen = strlen(name);
|
|
int pos = index_name_pos(&the_index, name, namelen);
|
|
int has_same_name = 0;
|
|
int is_file = 0;
|
|
int is_skipped = 1;
|
|
int did_checkout = 0;
|
|
int errs = 0;
|
|
|
|
if (pos < 0)
|
|
pos = -pos - 1;
|
|
|
|
while (pos < the_index.cache_nr) {
|
|
struct cache_entry *ce = the_index.cache[pos];
|
|
if (ce_namelen(ce) != namelen ||
|
|
memcmp(ce->name, name, namelen))
|
|
break;
|
|
has_same_name = 1;
|
|
pos++;
|
|
if (S_ISSPARSEDIR(ce->ce_mode))
|
|
break;
|
|
is_file = 1;
|
|
if (!ignore_skip_worktree && ce_skip_worktree(ce))
|
|
break;
|
|
is_skipped = 0;
|
|
if (ce_stage(ce) != checkout_stage
|
|
&& (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
|
|
continue;
|
|
did_checkout = 1;
|
|
if (checkout_entry(ce, &state,
|
|
to_tempfile ? topath[ce_stage(ce)] : NULL,
|
|
NULL) < 0)
|
|
errs++;
|
|
}
|
|
|
|
if (did_checkout) {
|
|
if (to_tempfile)
|
|
write_tempfile_record(name, prefix);
|
|
return errs > 0 ? -1 : 0;
|
|
}
|
|
|
|
/*
|
|
* At this point we know we didn't try to check anything out. If it was
|
|
* because we did find an entry but it was stage 0, that's not an
|
|
* error.
|
|
*/
|
|
if (has_same_name && checkout_stage == CHECKOUT_ALL)
|
|
return 0;
|
|
|
|
if (!state.quiet) {
|
|
fprintf(stderr, "git checkout-index: %s ", name);
|
|
if (!has_same_name)
|
|
fprintf(stderr, "is not in the cache");
|
|
else if (!is_file)
|
|
fprintf(stderr, "is a sparse directory");
|
|
else if (is_skipped)
|
|
fprintf(stderr, "has skip-worktree enabled; "
|
|
"use '--ignore-skip-worktree-bits' to checkout");
|
|
else if (checkout_stage)
|
|
fprintf(stderr, "does not exist at stage %d",
|
|
checkout_stage);
|
|
else
|
|
fprintf(stderr, "is unmerged");
|
|
fputc('\n', stderr);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int checkout_all(const char *prefix, int prefix_length)
|
|
{
|
|
int i, errs = 0;
|
|
struct cache_entry *last_ce = NULL;
|
|
|
|
for (i = 0; i < the_index.cache_nr ; i++) {
|
|
struct cache_entry *ce = the_index.cache[i];
|
|
|
|
if (S_ISSPARSEDIR(ce->ce_mode)) {
|
|
if (!ce_skip_worktree(ce))
|
|
BUG("sparse directory '%s' does not have skip-worktree set", ce->name);
|
|
|
|
/*
|
|
* If the current entry is a sparse directory and skip-worktree
|
|
* entries are being checked out, expand the index and continue
|
|
* the loop on the current index position (now pointing to the
|
|
* first entry inside the expanded sparse directory).
|
|
*/
|
|
if (ignore_skip_worktree) {
|
|
ensure_full_index(&the_index);
|
|
ce = the_index.cache[i];
|
|
}
|
|
}
|
|
|
|
if (!ignore_skip_worktree && ce_skip_worktree(ce))
|
|
continue;
|
|
if (ce_stage(ce) != checkout_stage
|
|
&& (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
|
|
continue;
|
|
if (prefix && *prefix &&
|
|
(ce_namelen(ce) <= prefix_length ||
|
|
memcmp(prefix, ce->name, prefix_length)))
|
|
continue;
|
|
if (last_ce && to_tempfile) {
|
|
if (ce_namelen(last_ce) != ce_namelen(ce)
|
|
|| memcmp(last_ce->name, ce->name, ce_namelen(ce)))
|
|
write_tempfile_record(last_ce->name, prefix);
|
|
}
|
|
if (checkout_entry(ce, &state,
|
|
to_tempfile ? topath[ce_stage(ce)] : NULL,
|
|
NULL) < 0)
|
|
errs++;
|
|
last_ce = ce;
|
|
}
|
|
if (last_ce && to_tempfile)
|
|
write_tempfile_record(last_ce->name, prefix);
|
|
return !!errs;
|
|
}
|
|
|
|
static const char * const builtin_checkout_index_usage[] = {
|
|
N_("git checkout-index [<options>] [--] [<file>...]"),
|
|
NULL
|
|
};
|
|
|
|
static int option_parse_stage(const struct option *opt,
|
|
const char *arg, int unset)
|
|
{
|
|
BUG_ON_OPT_NEG(unset);
|
|
|
|
if (!strcmp(arg, "all")) {
|
|
to_tempfile = 1;
|
|
checkout_stage = CHECKOUT_ALL;
|
|
} else {
|
|
int ch = arg[0];
|
|
if ('1' <= ch && ch <= '3')
|
|
checkout_stage = arg[0] - '0';
|
|
else
|
|
die(_("stage should be between 1 and 3 or all"));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cmd_checkout_index(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int i;
|
|
struct lock_file lock_file = LOCK_INIT;
|
|
int all = 0;
|
|
int read_from_stdin = 0;
|
|
int prefix_length;
|
|
int force = 0, quiet = 0, not_new = 0;
|
|
int index_opt = 0;
|
|
int err = 0;
|
|
int pc_workers, pc_threshold;
|
|
struct option builtin_checkout_index_options[] = {
|
|
OPT_BOOL('a', "all", &all,
|
|
N_("check out all files in the index")),
|
|
OPT_BOOL(0, "ignore-skip-worktree-bits", &ignore_skip_worktree,
|
|
N_("do not skip files with skip-worktree set")),
|
|
OPT__FORCE(&force, N_("force overwrite of existing files"), 0),
|
|
OPT__QUIET(&quiet,
|
|
N_("no warning for existing files and files not in index")),
|
|
OPT_BOOL('n', "no-create", ¬_new,
|
|
N_("don't checkout new files")),
|
|
OPT_BOOL('u', "index", &index_opt,
|
|
N_("update stat information in the index file")),
|
|
OPT_BOOL('z', NULL, &nul_term_line,
|
|
N_("paths are separated with NUL character")),
|
|
OPT_BOOL(0, "stdin", &read_from_stdin,
|
|
N_("read list of paths from the standard input")),
|
|
OPT_BOOL(0, "temp", &to_tempfile,
|
|
N_("write the content to temporary files")),
|
|
OPT_STRING(0, "prefix", &state.base_dir, N_("string"),
|
|
N_("when creating files, prepend <string>")),
|
|
OPT_CALLBACK_F(0, "stage", NULL, "(1|2|3|all)",
|
|
N_("copy out the files from named stage"),
|
|
PARSE_OPT_NONEG, option_parse_stage),
|
|
OPT_END()
|
|
};
|
|
|
|
if (argc == 2 && !strcmp(argv[1], "-h"))
|
|
usage_with_options(builtin_checkout_index_usage,
|
|
builtin_checkout_index_options);
|
|
git_config(git_default_config, NULL);
|
|
prefix_length = prefix ? strlen(prefix) : 0;
|
|
|
|
prepare_repo_settings(the_repository);
|
|
the_repository->settings.command_requires_full_index = 0;
|
|
|
|
if (repo_read_index(the_repository) < 0) {
|
|
die("invalid cache");
|
|
}
|
|
|
|
argc = parse_options(argc, argv, prefix, builtin_checkout_index_options,
|
|
builtin_checkout_index_usage, 0);
|
|
state.istate = &the_index;
|
|
state.force = force;
|
|
state.quiet = quiet;
|
|
state.not_new = not_new;
|
|
|
|
if (!state.base_dir)
|
|
state.base_dir = "";
|
|
state.base_dir_len = strlen(state.base_dir);
|
|
|
|
/*
|
|
* when --prefix is specified we do not want to update cache.
|
|
*/
|
|
if (index_opt && !state.base_dir_len && !to_tempfile) {
|
|
state.refresh_cache = 1;
|
|
state.istate = &the_index;
|
|
repo_hold_locked_index(the_repository, &lock_file,
|
|
LOCK_DIE_ON_ERROR);
|
|
}
|
|
|
|
get_parallel_checkout_configs(&pc_workers, &pc_threshold);
|
|
if (pc_workers > 1)
|
|
init_parallel_checkout();
|
|
|
|
/* Check out named files first */
|
|
for (i = 0; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
char *p;
|
|
|
|
if (all)
|
|
die("git checkout-index: don't mix '--all' and explicit filenames");
|
|
if (read_from_stdin)
|
|
die("git checkout-index: don't mix '--stdin' and explicit filenames");
|
|
p = prefix_path(prefix, prefix_length, arg);
|
|
err |= checkout_file(p, prefix);
|
|
free(p);
|
|
}
|
|
|
|
if (read_from_stdin) {
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct strbuf unquoted = STRBUF_INIT;
|
|
strbuf_getline_fn getline_fn;
|
|
|
|
if (all)
|
|
die("git checkout-index: don't mix '--all' and '--stdin'");
|
|
|
|
getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
|
|
while (getline_fn(&buf, stdin) != EOF) {
|
|
char *p;
|
|
if (!nul_term_line && buf.buf[0] == '"') {
|
|
strbuf_reset(&unquoted);
|
|
if (unquote_c_style(&unquoted, buf.buf, NULL))
|
|
die("line is badly quoted");
|
|
strbuf_swap(&buf, &unquoted);
|
|
}
|
|
p = prefix_path(prefix, prefix_length, buf.buf);
|
|
err |= checkout_file(p, prefix);
|
|
free(p);
|
|
}
|
|
strbuf_release(&unquoted);
|
|
strbuf_release(&buf);
|
|
}
|
|
|
|
if (all)
|
|
err |= checkout_all(prefix, prefix_length);
|
|
|
|
if (pc_workers > 1)
|
|
err |= run_parallel_checkout(&state, pc_workers, pc_threshold,
|
|
NULL, NULL);
|
|
|
|
if (err)
|
|
return 1;
|
|
|
|
if (is_lock_file_locked(&lock_file) &&
|
|
write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
|
|
die("Unable to write new index file");
|
|
return 0;
|
|
}
|