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![Junio C Hamano](/assets/img/avatar_default.png)
The more library-ish parts of the codebase learned to work on the in-core index-state instance that is passed in by their callers, instead of always working on the singleton "the_index" instance. * nd/no-the-index: (24 commits) blame.c: remove implicit dependency on the_index apply.c: remove implicit dependency on the_index apply.c: make init_apply_state() take a struct repository apply.c: pass struct apply_state to more functions resolve-undo.c: use the right index instead of the_index archive-*.c: use the right repository archive.c: avoid access to the_index grep: use the right index instead of the_index attr: remove index from git_attr_set_direction() entry.c: use the right index instead of the_index submodule.c: use the right index instead of the_index pathspec.c: use the right index instead of the_index unpack-trees: avoid the_index in verify_absent() unpack-trees: convert clear_ce_flags* to avoid the_index unpack-trees: don't shadow global var the_index unpack-trees: add a note about path invalidation unpack-trees: remove 'extern' on function declaration ls-files: correct index argument to get_convert_attr_ascii() preload-index.c: use the right index instead of the_index dir.c: remove an implicit dependency on the_index in pathspec code ...
1129 lines
30 KiB
C
1129 lines
30 KiB
C
/*
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* Builtin "git grep"
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*
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* Copyright (c) 2006 Junio C Hamano
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*/
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#include "cache.h"
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#include "repository.h"
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#include "config.h"
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#include "blob.h"
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#include "tree.h"
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#include "commit.h"
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#include "tag.h"
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#include "tree-walk.h"
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#include "builtin.h"
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#include "parse-options.h"
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#include "string-list.h"
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#include "run-command.h"
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#include "userdiff.h"
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#include "grep.h"
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#include "quote.h"
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#include "dir.h"
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#include "pathspec.h"
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#include "submodule.h"
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#include "submodule-config.h"
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#include "object-store.h"
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static char const * const grep_usage[] = {
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N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"),
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NULL
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};
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static int recurse_submodules;
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#define GREP_NUM_THREADS_DEFAULT 8
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static int num_threads;
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#ifndef NO_PTHREADS
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static pthread_t *threads;
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/* We use one producer thread and THREADS consumer
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* threads. The producer adds struct work_items to 'todo' and the
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* consumers pick work items from the same array.
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*/
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struct work_item {
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struct grep_source source;
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char done;
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struct strbuf out;
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};
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/* In the range [todo_done, todo_start) in 'todo' we have work_items
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* that have been or are processed by a consumer thread. We haven't
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* written the result for these to stdout yet.
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*
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* The work_items in [todo_start, todo_end) are waiting to be picked
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* up by a consumer thread.
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*
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* The ranges are modulo TODO_SIZE.
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*/
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#define TODO_SIZE 128
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static struct work_item todo[TODO_SIZE];
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static int todo_start;
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static int todo_end;
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static int todo_done;
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/* Has all work items been added? */
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static int all_work_added;
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/* This lock protects all the variables above. */
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static pthread_mutex_t grep_mutex;
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static inline void grep_lock(void)
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{
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assert(num_threads);
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pthread_mutex_lock(&grep_mutex);
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}
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static inline void grep_unlock(void)
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{
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assert(num_threads);
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pthread_mutex_unlock(&grep_mutex);
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}
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/* Signalled when a new work_item is added to todo. */
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static pthread_cond_t cond_add;
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/* Signalled when the result from one work_item is written to
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* stdout.
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*/
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static pthread_cond_t cond_write;
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/* Signalled when we are finished with everything. */
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static pthread_cond_t cond_result;
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static int skip_first_line;
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static void add_work(struct grep_opt *opt, const struct grep_source *gs)
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{
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grep_lock();
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while ((todo_end+1) % ARRAY_SIZE(todo) == todo_done) {
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pthread_cond_wait(&cond_write, &grep_mutex);
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}
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todo[todo_end].source = *gs;
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if (opt->binary != GREP_BINARY_TEXT)
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grep_source_load_driver(&todo[todo_end].source);
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todo[todo_end].done = 0;
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strbuf_reset(&todo[todo_end].out);
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todo_end = (todo_end + 1) % ARRAY_SIZE(todo);
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pthread_cond_signal(&cond_add);
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grep_unlock();
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}
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static struct work_item *get_work(void)
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{
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struct work_item *ret;
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grep_lock();
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while (todo_start == todo_end && !all_work_added) {
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pthread_cond_wait(&cond_add, &grep_mutex);
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}
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if (todo_start == todo_end && all_work_added) {
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ret = NULL;
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} else {
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ret = &todo[todo_start];
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todo_start = (todo_start + 1) % ARRAY_SIZE(todo);
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}
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grep_unlock();
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return ret;
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}
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static void work_done(struct work_item *w)
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{
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int old_done;
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grep_lock();
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w->done = 1;
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old_done = todo_done;
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for(; todo[todo_done].done && todo_done != todo_start;
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todo_done = (todo_done+1) % ARRAY_SIZE(todo)) {
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w = &todo[todo_done];
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if (w->out.len) {
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const char *p = w->out.buf;
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size_t len = w->out.len;
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/* Skip the leading hunk mark of the first file. */
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if (skip_first_line) {
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while (len) {
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len--;
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if (*p++ == '\n')
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break;
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}
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skip_first_line = 0;
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}
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write_or_die(1, p, len);
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}
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grep_source_clear(&w->source);
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}
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if (old_done != todo_done)
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pthread_cond_signal(&cond_write);
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if (all_work_added && todo_done == todo_end)
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pthread_cond_signal(&cond_result);
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grep_unlock();
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}
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static void *run(void *arg)
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{
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int hit = 0;
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struct grep_opt *opt = arg;
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while (1) {
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struct work_item *w = get_work();
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if (!w)
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break;
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opt->output_priv = w;
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hit |= grep_source(opt, &w->source);
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grep_source_clear_data(&w->source);
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work_done(w);
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}
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free_grep_patterns(arg);
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free(arg);
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return (void*) (intptr_t) hit;
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}
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static void strbuf_out(struct grep_opt *opt, const void *buf, size_t size)
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{
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struct work_item *w = opt->output_priv;
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strbuf_add(&w->out, buf, size);
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}
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static void start_threads(struct grep_opt *opt)
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{
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int i;
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pthread_mutex_init(&grep_mutex, NULL);
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pthread_mutex_init(&grep_read_mutex, NULL);
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pthread_mutex_init(&grep_attr_mutex, NULL);
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pthread_cond_init(&cond_add, NULL);
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pthread_cond_init(&cond_write, NULL);
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pthread_cond_init(&cond_result, NULL);
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grep_use_locks = 1;
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for (i = 0; i < ARRAY_SIZE(todo); i++) {
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strbuf_init(&todo[i].out, 0);
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}
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threads = xcalloc(num_threads, sizeof(*threads));
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for (i = 0; i < num_threads; i++) {
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int err;
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struct grep_opt *o = grep_opt_dup(opt);
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o->output = strbuf_out;
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if (i)
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o->debug = 0;
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compile_grep_patterns(o);
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err = pthread_create(&threads[i], NULL, run, o);
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if (err)
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die(_("grep: failed to create thread: %s"),
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strerror(err));
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}
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}
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static int wait_all(void)
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{
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int hit = 0;
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int i;
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grep_lock();
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all_work_added = 1;
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/* Wait until all work is done. */
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while (todo_done != todo_end)
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pthread_cond_wait(&cond_result, &grep_mutex);
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/* Wake up all the consumer threads so they can see that there
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* is no more work to do.
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*/
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pthread_cond_broadcast(&cond_add);
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grep_unlock();
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for (i = 0; i < num_threads; i++) {
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void *h;
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pthread_join(threads[i], &h);
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hit |= (int) (intptr_t) h;
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}
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free(threads);
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pthread_mutex_destroy(&grep_mutex);
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pthread_mutex_destroy(&grep_read_mutex);
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pthread_mutex_destroy(&grep_attr_mutex);
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pthread_cond_destroy(&cond_add);
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pthread_cond_destroy(&cond_write);
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pthread_cond_destroy(&cond_result);
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grep_use_locks = 0;
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return hit;
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}
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#else /* !NO_PTHREADS */
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static int wait_all(void)
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{
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return 0;
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}
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#endif
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static int grep_cmd_config(const char *var, const char *value, void *cb)
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{
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int st = grep_config(var, value, cb);
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if (git_color_default_config(var, value, cb) < 0)
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st = -1;
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if (!strcmp(var, "grep.threads")) {
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num_threads = git_config_int(var, value);
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if (num_threads < 0)
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die(_("invalid number of threads specified (%d) for %s"),
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num_threads, var);
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#ifdef NO_PTHREADS
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else if (num_threads && num_threads != 1) {
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/*
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* TRANSLATORS: %s is the configuration
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* variable for tweaking threads, currently
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* grep.threads
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*/
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warning(_("no threads support, ignoring %s"), var);
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num_threads = 0;
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}
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#endif
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}
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if (!strcmp(var, "submodule.recurse"))
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recurse_submodules = git_config_bool(var, value);
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return st;
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}
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static void *lock_and_read_oid_file(const struct object_id *oid, enum object_type *type, unsigned long *size)
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{
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void *data;
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grep_read_lock();
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data = read_object_file(oid, type, size);
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grep_read_unlock();
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return data;
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}
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static int grep_oid(struct grep_opt *opt, const struct object_id *oid,
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const char *filename, int tree_name_len,
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const char *path)
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{
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struct strbuf pathbuf = STRBUF_INIT;
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struct grep_source gs;
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if (opt->relative && opt->prefix_length) {
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quote_path_relative(filename + tree_name_len, opt->prefix, &pathbuf);
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strbuf_insert(&pathbuf, 0, filename, tree_name_len);
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} else {
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strbuf_addstr(&pathbuf, filename);
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}
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grep_source_init(&gs, GREP_SOURCE_OID, pathbuf.buf, path, oid);
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strbuf_release(&pathbuf);
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#ifndef NO_PTHREADS
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if (num_threads) {
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/*
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* add_work() copies gs and thus assumes ownership of
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* its fields, so do not call grep_source_clear()
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*/
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add_work(opt, &gs);
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return 0;
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} else
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#endif
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{
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int hit;
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hit = grep_source(opt, &gs);
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grep_source_clear(&gs);
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return hit;
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}
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}
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static int grep_file(struct grep_opt *opt, const char *filename)
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{
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struct strbuf buf = STRBUF_INIT;
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struct grep_source gs;
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if (opt->relative && opt->prefix_length)
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quote_path_relative(filename, opt->prefix, &buf);
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else
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strbuf_addstr(&buf, filename);
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grep_source_init(&gs, GREP_SOURCE_FILE, buf.buf, filename, filename);
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strbuf_release(&buf);
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#ifndef NO_PTHREADS
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if (num_threads) {
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/*
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* add_work() copies gs and thus assumes ownership of
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* its fields, so do not call grep_source_clear()
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*/
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add_work(opt, &gs);
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return 0;
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} else
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#endif
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{
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int hit;
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hit = grep_source(opt, &gs);
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grep_source_clear(&gs);
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return hit;
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}
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}
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static void append_path(struct grep_opt *opt, const void *data, size_t len)
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{
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struct string_list *path_list = opt->output_priv;
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if (len == 1 && *(const char *)data == '\0')
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return;
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string_list_append(path_list, xstrndup(data, len));
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}
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static void run_pager(struct grep_opt *opt, const char *prefix)
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{
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struct string_list *path_list = opt->output_priv;
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struct child_process child = CHILD_PROCESS_INIT;
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int i, status;
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for (i = 0; i < path_list->nr; i++)
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argv_array_push(&child.args, path_list->items[i].string);
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child.dir = prefix;
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child.use_shell = 1;
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status = run_command(&child);
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if (status)
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exit(status);
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}
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static int grep_cache(struct grep_opt *opt, struct repository *repo,
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const struct pathspec *pathspec, int cached);
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static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec,
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struct tree_desc *tree, struct strbuf *base, int tn_len,
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int check_attr, struct repository *repo);
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static int grep_submodule(struct grep_opt *opt, struct repository *superproject,
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const struct pathspec *pathspec,
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const struct object_id *oid,
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const char *filename, const char *path)
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{
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struct repository submodule;
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int hit;
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if (!is_submodule_active(superproject, path))
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return 0;
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if (repo_submodule_init(&submodule, superproject, path))
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return 0;
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repo_read_gitmodules(&submodule);
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/*
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* NEEDSWORK: This adds the submodule's object directory to the list of
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* alternates for the single in-memory object store. This has some bad
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* consequences for memory (processed objects will never be freed) and
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* performance (this increases the number of pack files git has to pay
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* attention to, to the sum of the number of pack files in all the
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* repositories processed so far). This can be removed once the object
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* store is no longer global and instead is a member of the repository
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* object.
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*/
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grep_read_lock();
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add_to_alternates_memory(submodule.objects->objectdir);
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grep_read_unlock();
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if (oid) {
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struct object *object;
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struct tree_desc tree;
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void *data;
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unsigned long size;
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struct strbuf base = STRBUF_INIT;
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object = parse_object_or_die(oid, oid_to_hex(oid));
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grep_read_lock();
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data = read_object_with_reference(&object->oid, tree_type,
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&size, NULL);
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grep_read_unlock();
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if (!data)
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die(_("unable to read tree (%s)"), oid_to_hex(&object->oid));
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strbuf_addstr(&base, filename);
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strbuf_addch(&base, '/');
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init_tree_desc(&tree, data, size);
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hit = grep_tree(opt, pathspec, &tree, &base, base.len,
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object->type == OBJ_COMMIT, &submodule);
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strbuf_release(&base);
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free(data);
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} else {
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hit = grep_cache(opt, &submodule, pathspec, 1);
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}
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repo_clear(&submodule);
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return hit;
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}
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|
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static int grep_cache(struct grep_opt *opt, struct repository *repo,
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const struct pathspec *pathspec, int cached)
|
|
{
|
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int hit = 0;
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int nr;
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struct strbuf name = STRBUF_INIT;
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int name_base_len = 0;
|
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if (repo->submodule_prefix) {
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name_base_len = strlen(repo->submodule_prefix);
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strbuf_addstr(&name, repo->submodule_prefix);
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|
}
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|
|
if (repo_read_index(repo) < 0)
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die(_("index file corrupt"));
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|
|
for (nr = 0; nr < repo->index->cache_nr; nr++) {
|
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const struct cache_entry *ce = repo->index->cache[nr];
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strbuf_setlen(&name, name_base_len);
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strbuf_addstr(&name, ce->name);
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|
|
if (S_ISREG(ce->ce_mode) &&
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match_pathspec(repo->index, pathspec, name.buf, name.len, 0, NULL,
|
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S_ISDIR(ce->ce_mode) ||
|
|
S_ISGITLINK(ce->ce_mode))) {
|
|
/*
|
|
* If CE_VALID is on, we assume worktree file and its
|
|
* cache entry are identical, even if worktree file has
|
|
* been modified, so use cache version instead
|
|
*/
|
|
if (cached || (ce->ce_flags & CE_VALID) ||
|
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ce_skip_worktree(ce)) {
|
|
if (ce_stage(ce) || ce_intent_to_add(ce))
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continue;
|
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hit |= grep_oid(opt, &ce->oid, name.buf,
|
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0, name.buf);
|
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} else {
|
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hit |= grep_file(opt, name.buf);
|
|
}
|
|
} else if (recurse_submodules && S_ISGITLINK(ce->ce_mode) &&
|
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submodule_path_match(repo->index, pathspec, name.buf, NULL)) {
|
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hit |= grep_submodule(opt, repo, pathspec, NULL, ce->name, ce->name);
|
|
} else {
|
|
continue;
|
|
}
|
|
|
|
if (ce_stage(ce)) {
|
|
do {
|
|
nr++;
|
|
} while (nr < repo->index->cache_nr &&
|
|
!strcmp(ce->name, repo->index->cache[nr]->name));
|
|
nr--; /* compensate for loop control */
|
|
}
|
|
if (hit && opt->status_only)
|
|
break;
|
|
}
|
|
|
|
strbuf_release(&name);
|
|
return hit;
|
|
}
|
|
|
|
static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec,
|
|
struct tree_desc *tree, struct strbuf *base, int tn_len,
|
|
int check_attr, struct repository *repo)
|
|
{
|
|
int hit = 0;
|
|
enum interesting match = entry_not_interesting;
|
|
struct name_entry entry;
|
|
int old_baselen = base->len;
|
|
struct strbuf name = STRBUF_INIT;
|
|
int name_base_len = 0;
|
|
if (repo->submodule_prefix) {
|
|
strbuf_addstr(&name, repo->submodule_prefix);
|
|
name_base_len = name.len;
|
|
}
|
|
|
|
while (tree_entry(tree, &entry)) {
|
|
int te_len = tree_entry_len(&entry);
|
|
|
|
if (match != all_entries_interesting) {
|
|
strbuf_addstr(&name, base->buf + tn_len);
|
|
match = tree_entry_interesting(&entry, &name,
|
|
0, pathspec);
|
|
strbuf_setlen(&name, name_base_len);
|
|
|
|
if (match == all_entries_not_interesting)
|
|
break;
|
|
if (match == entry_not_interesting)
|
|
continue;
|
|
}
|
|
|
|
strbuf_add(base, entry.path, te_len);
|
|
|
|
if (S_ISREG(entry.mode)) {
|
|
hit |= grep_oid(opt, entry.oid, base->buf, tn_len,
|
|
check_attr ? base->buf + tn_len : NULL);
|
|
} else if (S_ISDIR(entry.mode)) {
|
|
enum object_type type;
|
|
struct tree_desc sub;
|
|
void *data;
|
|
unsigned long size;
|
|
|
|
data = lock_and_read_oid_file(entry.oid, &type, &size);
|
|
if (!data)
|
|
die(_("unable to read tree (%s)"),
|
|
oid_to_hex(entry.oid));
|
|
|
|
strbuf_addch(base, '/');
|
|
init_tree_desc(&sub, data, size);
|
|
hit |= grep_tree(opt, pathspec, &sub, base, tn_len,
|
|
check_attr, repo);
|
|
free(data);
|
|
} else if (recurse_submodules && S_ISGITLINK(entry.mode)) {
|
|
hit |= grep_submodule(opt, repo, pathspec, entry.oid,
|
|
base->buf, base->buf + tn_len);
|
|
}
|
|
|
|
strbuf_setlen(base, old_baselen);
|
|
|
|
if (hit && opt->status_only)
|
|
break;
|
|
}
|
|
|
|
strbuf_release(&name);
|
|
return hit;
|
|
}
|
|
|
|
static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
|
|
struct object *obj, const char *name, const char *path)
|
|
{
|
|
if (obj->type == OBJ_BLOB)
|
|
return grep_oid(opt, &obj->oid, name, 0, path);
|
|
if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) {
|
|
struct tree_desc tree;
|
|
void *data;
|
|
unsigned long size;
|
|
struct strbuf base;
|
|
int hit, len;
|
|
|
|
grep_read_lock();
|
|
data = read_object_with_reference(&obj->oid, tree_type,
|
|
&size, NULL);
|
|
grep_read_unlock();
|
|
|
|
if (!data)
|
|
die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid));
|
|
|
|
len = name ? strlen(name) : 0;
|
|
strbuf_init(&base, PATH_MAX + len + 1);
|
|
if (len) {
|
|
strbuf_add(&base, name, len);
|
|
strbuf_addch(&base, ':');
|
|
}
|
|
init_tree_desc(&tree, data, size);
|
|
hit = grep_tree(opt, pathspec, &tree, &base, base.len,
|
|
obj->type == OBJ_COMMIT, the_repository);
|
|
strbuf_release(&base);
|
|
free(data);
|
|
return hit;
|
|
}
|
|
die(_("unable to grep from object of type %s"), type_name(obj->type));
|
|
}
|
|
|
|
static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec,
|
|
const struct object_array *list)
|
|
{
|
|
unsigned int i;
|
|
int hit = 0;
|
|
const unsigned int nr = list->nr;
|
|
|
|
for (i = 0; i < nr; i++) {
|
|
struct object *real_obj;
|
|
real_obj = deref_tag(the_repository, list->objects[i].item,
|
|
NULL, 0);
|
|
|
|
/* load the gitmodules file for this rev */
|
|
if (recurse_submodules) {
|
|
submodule_free(the_repository);
|
|
gitmodules_config_oid(&real_obj->oid);
|
|
}
|
|
if (grep_object(opt, pathspec, real_obj, list->objects[i].name,
|
|
list->objects[i].path)) {
|
|
hit = 1;
|
|
if (opt->status_only)
|
|
break;
|
|
}
|
|
}
|
|
return hit;
|
|
}
|
|
|
|
static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec,
|
|
int exc_std, int use_index)
|
|
{
|
|
struct dir_struct dir;
|
|
int i, hit = 0;
|
|
|
|
memset(&dir, 0, sizeof(dir));
|
|
if (!use_index)
|
|
dir.flags |= DIR_NO_GITLINKS;
|
|
if (exc_std)
|
|
setup_standard_excludes(&dir);
|
|
|
|
fill_directory(&dir, &the_index, pathspec);
|
|
for (i = 0; i < dir.nr; i++) {
|
|
if (!dir_path_match(&the_index, dir.entries[i], pathspec, 0, NULL))
|
|
continue;
|
|
hit |= grep_file(opt, dir.entries[i]->name);
|
|
if (hit && opt->status_only)
|
|
break;
|
|
}
|
|
return hit;
|
|
}
|
|
|
|
static int context_callback(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
struct grep_opt *grep_opt = opt->value;
|
|
int value;
|
|
const char *endp;
|
|
|
|
if (unset) {
|
|
grep_opt->pre_context = grep_opt->post_context = 0;
|
|
return 0;
|
|
}
|
|
value = strtol(arg, (char **)&endp, 10);
|
|
if (*endp) {
|
|
return error(_("switch `%c' expects a numerical value"),
|
|
opt->short_name);
|
|
}
|
|
grep_opt->pre_context = grep_opt->post_context = value;
|
|
return 0;
|
|
}
|
|
|
|
static int file_callback(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct grep_opt *grep_opt = opt->value;
|
|
int from_stdin = !strcmp(arg, "-");
|
|
FILE *patterns;
|
|
int lno = 0;
|
|
struct strbuf sb = STRBUF_INIT;
|
|
|
|
patterns = from_stdin ? stdin : fopen(arg, "r");
|
|
if (!patterns)
|
|
die_errno(_("cannot open '%s'"), arg);
|
|
while (strbuf_getline(&sb, patterns) == 0) {
|
|
/* ignore empty line like grep does */
|
|
if (sb.len == 0)
|
|
continue;
|
|
|
|
append_grep_pat(grep_opt, sb.buf, sb.len, arg, ++lno,
|
|
GREP_PATTERN);
|
|
}
|
|
if (!from_stdin)
|
|
fclose(patterns);
|
|
strbuf_release(&sb);
|
|
return 0;
|
|
}
|
|
|
|
static int not_callback(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct grep_opt *grep_opt = opt->value;
|
|
append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT);
|
|
return 0;
|
|
}
|
|
|
|
static int and_callback(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct grep_opt *grep_opt = opt->value;
|
|
append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND);
|
|
return 0;
|
|
}
|
|
|
|
static int open_callback(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct grep_opt *grep_opt = opt->value;
|
|
append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN);
|
|
return 0;
|
|
}
|
|
|
|
static int close_callback(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct grep_opt *grep_opt = opt->value;
|
|
append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN);
|
|
return 0;
|
|
}
|
|
|
|
static int pattern_callback(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
struct grep_opt *grep_opt = opt->value;
|
|
append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN);
|
|
return 0;
|
|
}
|
|
|
|
int cmd_grep(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int hit = 0;
|
|
int cached = 0, untracked = 0, opt_exclude = -1;
|
|
int seen_dashdash = 0;
|
|
int external_grep_allowed__ignored;
|
|
const char *show_in_pager = NULL, *default_pager = "dummy";
|
|
struct grep_opt opt;
|
|
struct object_array list = OBJECT_ARRAY_INIT;
|
|
struct pathspec pathspec;
|
|
struct string_list path_list = STRING_LIST_INIT_NODUP;
|
|
int i;
|
|
int dummy;
|
|
int use_index = 1;
|
|
int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED;
|
|
int allow_revs;
|
|
|
|
struct option options[] = {
|
|
OPT_BOOL(0, "cached", &cached,
|
|
N_("search in index instead of in the work tree")),
|
|
OPT_NEGBIT(0, "no-index", &use_index,
|
|
N_("find in contents not managed by git"), 1),
|
|
OPT_BOOL(0, "untracked", &untracked,
|
|
N_("search in both tracked and untracked files")),
|
|
OPT_SET_INT(0, "exclude-standard", &opt_exclude,
|
|
N_("ignore files specified via '.gitignore'"), 1),
|
|
OPT_BOOL(0, "recurse-submodules", &recurse_submodules,
|
|
N_("recursively search in each submodule")),
|
|
OPT_GROUP(""),
|
|
OPT_BOOL('v', "invert-match", &opt.invert,
|
|
N_("show non-matching lines")),
|
|
OPT_BOOL('i', "ignore-case", &opt.ignore_case,
|
|
N_("case insensitive matching")),
|
|
OPT_BOOL('w', "word-regexp", &opt.word_regexp,
|
|
N_("match patterns only at word boundaries")),
|
|
OPT_SET_INT('a', "text", &opt.binary,
|
|
N_("process binary files as text"), GREP_BINARY_TEXT),
|
|
OPT_SET_INT('I', NULL, &opt.binary,
|
|
N_("don't match patterns in binary files"),
|
|
GREP_BINARY_NOMATCH),
|
|
OPT_BOOL(0, "textconv", &opt.allow_textconv,
|
|
N_("process binary files with textconv filters")),
|
|
{ OPTION_INTEGER, 0, "max-depth", &opt.max_depth, N_("depth"),
|
|
N_("descend at most <depth> levels"), PARSE_OPT_NONEG,
|
|
NULL, 1 },
|
|
OPT_GROUP(""),
|
|
OPT_SET_INT('E', "extended-regexp", &pattern_type_arg,
|
|
N_("use extended POSIX regular expressions"),
|
|
GREP_PATTERN_TYPE_ERE),
|
|
OPT_SET_INT('G', "basic-regexp", &pattern_type_arg,
|
|
N_("use basic POSIX regular expressions (default)"),
|
|
GREP_PATTERN_TYPE_BRE),
|
|
OPT_SET_INT('F', "fixed-strings", &pattern_type_arg,
|
|
N_("interpret patterns as fixed strings"),
|
|
GREP_PATTERN_TYPE_FIXED),
|
|
OPT_SET_INT('P', "perl-regexp", &pattern_type_arg,
|
|
N_("use Perl-compatible regular expressions"),
|
|
GREP_PATTERN_TYPE_PCRE),
|
|
OPT_GROUP(""),
|
|
OPT_BOOL('n', "line-number", &opt.linenum, N_("show line numbers")),
|
|
OPT_BOOL(0, "column", &opt.columnnum, N_("show column number of first match")),
|
|
OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1),
|
|
OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1),
|
|
OPT_NEGBIT(0, "full-name", &opt.relative,
|
|
N_("show filenames relative to top directory"), 1),
|
|
OPT_BOOL('l', "files-with-matches", &opt.name_only,
|
|
N_("show only filenames instead of matching lines")),
|
|
OPT_BOOL(0, "name-only", &opt.name_only,
|
|
N_("synonym for --files-with-matches")),
|
|
OPT_BOOL('L', "files-without-match",
|
|
&opt.unmatch_name_only,
|
|
N_("show only the names of files without match")),
|
|
OPT_BOOL_F('z', "null", &opt.null_following_name,
|
|
N_("print NUL after filenames"),
|
|
PARSE_OPT_NOCOMPLETE),
|
|
OPT_BOOL('o', "only-matching", &opt.only_matching,
|
|
N_("show only matching parts of a line")),
|
|
OPT_BOOL('c', "count", &opt.count,
|
|
N_("show the number of matches instead of matching lines")),
|
|
OPT__COLOR(&opt.color, N_("highlight matches")),
|
|
OPT_BOOL(0, "break", &opt.file_break,
|
|
N_("print empty line between matches from different files")),
|
|
OPT_BOOL(0, "heading", &opt.heading,
|
|
N_("show filename only once above matches from same file")),
|
|
OPT_GROUP(""),
|
|
OPT_CALLBACK('C', "context", &opt, N_("n"),
|
|
N_("show <n> context lines before and after matches"),
|
|
context_callback),
|
|
OPT_INTEGER('B', "before-context", &opt.pre_context,
|
|
N_("show <n> context lines before matches")),
|
|
OPT_INTEGER('A', "after-context", &opt.post_context,
|
|
N_("show <n> context lines after matches")),
|
|
OPT_INTEGER(0, "threads", &num_threads,
|
|
N_("use <n> worker threads")),
|
|
OPT_NUMBER_CALLBACK(&opt, N_("shortcut for -C NUM"),
|
|
context_callback),
|
|
OPT_BOOL('p', "show-function", &opt.funcname,
|
|
N_("show a line with the function name before matches")),
|
|
OPT_BOOL('W', "function-context", &opt.funcbody,
|
|
N_("show the surrounding function")),
|
|
OPT_GROUP(""),
|
|
OPT_CALLBACK('f', NULL, &opt, N_("file"),
|
|
N_("read patterns from file"), file_callback),
|
|
{ OPTION_CALLBACK, 'e', NULL, &opt, N_("pattern"),
|
|
N_("match <pattern>"), PARSE_OPT_NONEG, pattern_callback },
|
|
{ OPTION_CALLBACK, 0, "and", &opt, NULL,
|
|
N_("combine patterns specified with -e"),
|
|
PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
|
|
OPT_BOOL(0, "or", &dummy, ""),
|
|
{ OPTION_CALLBACK, 0, "not", &opt, NULL, "",
|
|
PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback },
|
|
{ OPTION_CALLBACK, '(', NULL, &opt, NULL, "",
|
|
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
|
|
open_callback },
|
|
{ OPTION_CALLBACK, ')', NULL, &opt, NULL, "",
|
|
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
|
|
close_callback },
|
|
OPT__QUIET(&opt.status_only,
|
|
N_("indicate hit with exit status without output")),
|
|
OPT_BOOL(0, "all-match", &opt.all_match,
|
|
N_("show only matches from files that match all patterns")),
|
|
OPT_SET_INT_F(0, "debug", &opt.debug,
|
|
N_("show parse tree for grep expression"),
|
|
1, PARSE_OPT_HIDDEN),
|
|
OPT_GROUP(""),
|
|
{ OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager,
|
|
N_("pager"), N_("show matching files in the pager"),
|
|
PARSE_OPT_OPTARG | PARSE_OPT_NOCOMPLETE,
|
|
NULL, (intptr_t)default_pager },
|
|
OPT_BOOL_F(0, "ext-grep", &external_grep_allowed__ignored,
|
|
N_("allow calling of grep(1) (ignored by this build)"),
|
|
PARSE_OPT_NOCOMPLETE),
|
|
OPT_END()
|
|
};
|
|
|
|
init_grep_defaults();
|
|
git_config(grep_cmd_config, NULL);
|
|
grep_init(&opt, prefix);
|
|
|
|
/*
|
|
* If there is no -- then the paths must exist in the working
|
|
* tree. If there is no explicit pattern specified with -e or
|
|
* -f, we take the first unrecognized non option to be the
|
|
* pattern, but then what follows it must be zero or more
|
|
* valid refs up to the -- (if exists), and then existing
|
|
* paths. If there is an explicit pattern, then the first
|
|
* unrecognized non option is the beginning of the refs list
|
|
* that continues up to the -- (if exists), and then paths.
|
|
*/
|
|
argc = parse_options(argc, argv, prefix, options, grep_usage,
|
|
PARSE_OPT_KEEP_DASHDASH |
|
|
PARSE_OPT_STOP_AT_NON_OPTION);
|
|
grep_commit_pattern_type(pattern_type_arg, &opt);
|
|
|
|
if (use_index && !startup_info->have_repository) {
|
|
int fallback = 0;
|
|
git_config_get_bool("grep.fallbacktonoindex", &fallback);
|
|
if (fallback)
|
|
use_index = 0;
|
|
else
|
|
/* die the same way as if we did it at the beginning */
|
|
setup_git_directory();
|
|
}
|
|
|
|
/*
|
|
* skip a -- separator; we know it cannot be
|
|
* separating revisions from pathnames if
|
|
* we haven't even had any patterns yet
|
|
*/
|
|
if (argc > 0 && !opt.pattern_list && !strcmp(argv[0], "--")) {
|
|
argv++;
|
|
argc--;
|
|
}
|
|
|
|
/* First unrecognized non-option token */
|
|
if (argc > 0 && !opt.pattern_list) {
|
|
append_grep_pattern(&opt, argv[0], "command line", 0,
|
|
GREP_PATTERN);
|
|
argv++;
|
|
argc--;
|
|
}
|
|
|
|
if (show_in_pager == default_pager)
|
|
show_in_pager = git_pager(1);
|
|
if (show_in_pager) {
|
|
opt.color = 0;
|
|
opt.name_only = 1;
|
|
opt.null_following_name = 1;
|
|
opt.output_priv = &path_list;
|
|
opt.output = append_path;
|
|
string_list_append(&path_list, show_in_pager);
|
|
}
|
|
|
|
if (!opt.pattern_list)
|
|
die(_("no pattern given"));
|
|
|
|
/* --only-matching has no effect with --invert. */
|
|
if (opt.invert)
|
|
opt.only_matching = 0;
|
|
|
|
/*
|
|
* We have to find "--" in a separate pass, because its presence
|
|
* influences how we will parse arguments that come before it.
|
|
*/
|
|
for (i = 0; i < argc; i++) {
|
|
if (!strcmp(argv[i], "--")) {
|
|
seen_dashdash = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Resolve any rev arguments. If we have a dashdash, then everything up
|
|
* to it must resolve as a rev. If not, then we stop at the first
|
|
* non-rev and assume everything else is a path.
|
|
*/
|
|
allow_revs = use_index && !untracked;
|
|
for (i = 0; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
struct object_id oid;
|
|
struct object_context oc;
|
|
struct object *object;
|
|
|
|
if (!strcmp(arg, "--")) {
|
|
i++;
|
|
break;
|
|
}
|
|
|
|
if (!allow_revs) {
|
|
if (seen_dashdash)
|
|
die(_("--no-index or --untracked cannot be used with revs"));
|
|
break;
|
|
}
|
|
|
|
if (get_oid_with_context(arg, GET_OID_RECORD_PATH,
|
|
&oid, &oc)) {
|
|
if (seen_dashdash)
|
|
die(_("unable to resolve revision: %s"), arg);
|
|
break;
|
|
}
|
|
|
|
object = parse_object_or_die(&oid, arg);
|
|
if (!seen_dashdash)
|
|
verify_non_filename(prefix, arg);
|
|
add_object_array_with_path(object, arg, &list, oc.mode, oc.path);
|
|
free(oc.path);
|
|
}
|
|
|
|
/*
|
|
* Anything left over is presumed to be a path. But in the non-dashdash
|
|
* "do what I mean" case, we verify and complain when that isn't true.
|
|
*/
|
|
if (!seen_dashdash) {
|
|
int j;
|
|
for (j = i; j < argc; j++)
|
|
verify_filename(prefix, argv[j], j == i && allow_revs);
|
|
}
|
|
|
|
parse_pathspec(&pathspec, 0,
|
|
PATHSPEC_PREFER_CWD |
|
|
(opt.max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0),
|
|
prefix, argv + i);
|
|
pathspec.max_depth = opt.max_depth;
|
|
pathspec.recursive = 1;
|
|
pathspec.recurse_submodules = !!recurse_submodules;
|
|
|
|
#ifndef NO_PTHREADS
|
|
if (list.nr || cached || show_in_pager)
|
|
num_threads = 0;
|
|
else if (num_threads == 0)
|
|
num_threads = GREP_NUM_THREADS_DEFAULT;
|
|
else if (num_threads < 0)
|
|
die(_("invalid number of threads specified (%d)"), num_threads);
|
|
if (num_threads == 1)
|
|
num_threads = 0;
|
|
#else
|
|
if (num_threads)
|
|
warning(_("no threads support, ignoring --threads"));
|
|
num_threads = 0;
|
|
#endif
|
|
|
|
if (!num_threads)
|
|
/*
|
|
* The compiled patterns on the main path are only
|
|
* used when not using threading. Otherwise
|
|
* start_threads() below calls compile_grep_patterns()
|
|
* for each thread.
|
|
*/
|
|
compile_grep_patterns(&opt);
|
|
|
|
#ifndef NO_PTHREADS
|
|
if (num_threads) {
|
|
if (!(opt.name_only || opt.unmatch_name_only || opt.count)
|
|
&& (opt.pre_context || opt.post_context ||
|
|
opt.file_break || opt.funcbody))
|
|
skip_first_line = 1;
|
|
start_threads(&opt);
|
|
}
|
|
#endif
|
|
|
|
if (show_in_pager && (cached || list.nr))
|
|
die(_("--open-files-in-pager only works on the worktree"));
|
|
|
|
if (show_in_pager && opt.pattern_list && !opt.pattern_list->next) {
|
|
const char *pager = path_list.items[0].string;
|
|
int len = strlen(pager);
|
|
|
|
if (len > 4 && is_dir_sep(pager[len - 5]))
|
|
pager += len - 4;
|
|
|
|
if (opt.ignore_case && !strcmp("less", pager))
|
|
string_list_append(&path_list, "-I");
|
|
|
|
if (!strcmp("less", pager) || !strcmp("vi", pager)) {
|
|
struct strbuf buf = STRBUF_INIT;
|
|
strbuf_addf(&buf, "+/%s%s",
|
|
strcmp("less", pager) ? "" : "*",
|
|
opt.pattern_list->pattern);
|
|
string_list_append(&path_list, buf.buf);
|
|
strbuf_detach(&buf, NULL);
|
|
}
|
|
}
|
|
|
|
if (recurse_submodules && (!use_index || untracked))
|
|
die(_("option not supported with --recurse-submodules"));
|
|
|
|
if (!show_in_pager && !opt.status_only)
|
|
setup_pager();
|
|
|
|
if (!use_index && (untracked || cached))
|
|
die(_("--cached or --untracked cannot be used with --no-index"));
|
|
|
|
if (!use_index || untracked) {
|
|
int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude;
|
|
hit = grep_directory(&opt, &pathspec, use_exclude, use_index);
|
|
} else if (0 <= opt_exclude) {
|
|
die(_("--[no-]exclude-standard cannot be used for tracked contents"));
|
|
} else if (!list.nr) {
|
|
if (!cached)
|
|
setup_work_tree();
|
|
|
|
hit = grep_cache(&opt, the_repository, &pathspec, cached);
|
|
} else {
|
|
if (cached)
|
|
die(_("both --cached and trees are given"));
|
|
|
|
hit = grep_objects(&opt, &pathspec, &list);
|
|
}
|
|
|
|
if (num_threads)
|
|
hit |= wait_all();
|
|
if (hit && show_in_pager)
|
|
run_pager(&opt, prefix);
|
|
clear_pathspec(&pathspec);
|
|
free_grep_patterns(&opt);
|
|
return !hit;
|
|
}
|