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