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-rw-r--r--builtin-grep.c916
1 files changed, 0 insertions, 916 deletions
diff --git a/builtin-grep.c b/builtin-grep.c
deleted file mode 100644
index 529461fb8f..0000000000
--- a/builtin-grep.c
+++ /dev/null
@@ -1,916 +0,0 @@
-/*
- * Builtin "git grep"
- *
- * Copyright (c) 2006 Junio C Hamano
- */
-#include "cache.h"
-#include "blob.h"
-#include "tree.h"
-#include "commit.h"
-#include "tag.h"
-#include "tree-walk.h"
-#include "builtin.h"
-#include "parse-options.h"
-#include "userdiff.h"
-#include "grep.h"
-#include "quote.h"
-
-#ifndef NO_EXTERNAL_GREP
-#ifdef __unix__
-#define NO_EXTERNAL_GREP 0
-#else
-#define NO_EXTERNAL_GREP 1
-#endif
-#endif
-
-static char const * const grep_usage[] = {
- "git grep [options] [-e] <pattern> [<rev>...] [[--] path...]",
- NULL
-};
-
-static int grep_config(const char *var, const char *value, void *cb)
-{
- struct grep_opt *opt = cb;
-
- switch (userdiff_config(var, value)) {
- case 0: break;
- case -1: return -1;
- default: return 0;
- }
-
- if (!strcmp(var, "color.grep")) {
- opt->color = git_config_colorbool(var, value, -1);
- return 0;
- }
- if (!strcmp(var, "color.grep.external"))
- return git_config_string(&(opt->color_external), var, value);
- if (!strcmp(var, "color.grep.match")) {
- if (!value)
- return config_error_nonbool(var);
- color_parse(value, var, opt->color_match);
- return 0;
- }
- return git_color_default_config(var, value, cb);
-}
-
-/*
- * Return non-zero if max_depth is negative or path has no more then max_depth
- * slashes.
- */
-static int accept_subdir(const char *path, int max_depth)
-{
- if (max_depth < 0)
- return 1;
-
- while ((path = strchr(path, '/')) != NULL) {
- max_depth--;
- if (max_depth < 0)
- return 0;
- path++;
- }
- return 1;
-}
-
-/*
- * Return non-zero if name is a subdirectory of match and is not too deep.
- */
-static int is_subdir(const char *name, int namelen,
- const char *match, int matchlen, int max_depth)
-{
- if (matchlen > namelen || strncmp(name, match, matchlen))
- return 0;
-
- if (name[matchlen] == '\0') /* exact match */
- return 1;
-
- if (!matchlen || match[matchlen-1] == '/' || name[matchlen] == '/')
- return accept_subdir(name + matchlen + 1, max_depth);
-
- return 0;
-}
-
-/*
- * git grep pathspecs are somewhat different from diff-tree pathspecs;
- * pathname wildcards are allowed.
- */
-static int pathspec_matches(const char **paths, const char *name, int max_depth)
-{
- int namelen, i;
- if (!paths || !*paths)
- return accept_subdir(name, max_depth);
- namelen = strlen(name);
- for (i = 0; paths[i]; i++) {
- const char *match = paths[i];
- int matchlen = strlen(match);
- const char *cp, *meta;
-
- if (is_subdir(name, namelen, match, matchlen, max_depth))
- return 1;
- if (!fnmatch(match, name, 0))
- return 1;
- if (name[namelen-1] != '/')
- continue;
-
- /* We are being asked if the directory ("name") is worth
- * descending into.
- *
- * Find the longest leading directory name that does
- * not have metacharacter in the pathspec; the name
- * we are looking at must overlap with that directory.
- */
- for (cp = match, meta = NULL; cp - match < matchlen; cp++) {
- char ch = *cp;
- if (ch == '*' || ch == '[' || ch == '?') {
- meta = cp;
- break;
- }
- }
- if (!meta)
- meta = cp; /* fully literal */
-
- if (namelen <= meta - match) {
- /* Looking at "Documentation/" and
- * the pattern says "Documentation/howto/", or
- * "Documentation/diff*.txt". The name we
- * have should match prefix.
- */
- if (!memcmp(match, name, namelen))
- return 1;
- continue;
- }
-
- if (meta - match < namelen) {
- /* Looking at "Documentation/howto/" and
- * the pattern says "Documentation/h*";
- * match up to "Do.../h"; this avoids descending
- * into "Documentation/technical/".
- */
- if (!memcmp(match, name, meta - match))
- return 1;
- continue;
- }
- }
- return 0;
-}
-
-static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char *name, int tree_name_len)
-{
- unsigned long size;
- char *data;
- enum object_type type;
- int hit;
- struct strbuf pathbuf = STRBUF_INIT;
-
- data = read_sha1_file(sha1, &type, &size);
- if (!data) {
- error("'%s': unable to read %s", name, sha1_to_hex(sha1));
- return 0;
- }
- if (opt->relative && opt->prefix_length) {
- quote_path_relative(name + tree_name_len, -1, &pathbuf, opt->prefix);
- strbuf_insert(&pathbuf, 0, name, tree_name_len);
- name = pathbuf.buf;
- }
- hit = grep_buffer(opt, name, data, size);
- strbuf_release(&pathbuf);
- free(data);
- return hit;
-}
-
-static int grep_file(struct grep_opt *opt, const char *filename)
-{
- struct stat st;
- int i;
- char *data;
- size_t sz;
- struct strbuf buf = STRBUF_INIT;
-
- if (lstat(filename, &st) < 0) {
- err_ret:
- if (errno != ENOENT)
- error("'%s': %s", filename, strerror(errno));
- return 0;
- }
- if (!S_ISREG(st.st_mode))
- return 0;
- sz = xsize_t(st.st_size);
- i = open(filename, O_RDONLY);
- if (i < 0)
- goto err_ret;
- data = xmalloc(sz + 1);
- if (st.st_size != read_in_full(i, data, sz)) {
- error("'%s': short read %s", filename, strerror(errno));
- close(i);
- free(data);
- return 0;
- }
- close(i);
- if (opt->relative && opt->prefix_length)
- filename = quote_path_relative(filename, -1, &buf, opt->prefix);
- i = grep_buffer(opt, filename, data, sz);
- strbuf_release(&buf);
- free(data);
- return i;
-}
-
-#if !NO_EXTERNAL_GREP
-static int exec_grep(int argc, const char **argv)
-{
- pid_t pid;
- int status;
-
- argv[argc] = NULL;
- trace_argv_printf(argv, "trace: grep:");
- pid = fork();
- if (pid < 0)
- return pid;
- if (!pid) {
- execvp("grep", (char **) argv);
- exit(255);
- }
- while (waitpid(pid, &status, 0) < 0) {
- if (errno == EINTR)
- continue;
- return -1;
- }
- if (WIFEXITED(status)) {
- if (!WEXITSTATUS(status))
- return 1;
- return 0;
- }
- return -1;
-}
-
-#define MAXARGS 1000
-#define ARGBUF 4096
-#define push_arg(a) do { \
- if (nr < MAXARGS) argv[nr++] = (a); \
- else die("maximum number of args exceeded"); \
- } while (0)
-
-/*
- * If you send a singleton filename to grep, it does not give
- * the name of the file. GNU grep has "-H" but we would want
- * that behaviour in a portable way.
- *
- * So we keep two pathnames in argv buffer unsent to grep in
- * the main loop if we need to do more than one grep.
- */
-static int flush_grep(struct grep_opt *opt,
- int argc, int arg0, const char **argv, int *kept)
-{
- int status;
- int count = argc - arg0;
- const char *kept_0 = NULL;
-
- if (count <= 2) {
- /*
- * Because we keep at least 2 paths in the call from
- * the main loop (i.e. kept != NULL), and MAXARGS is
- * far greater than 2, this usually is a call to
- * conclude the grep. However, the user could attempt
- * to overflow the argv buffer by giving too many
- * options to leave very small number of real
- * arguments even for the call in the main loop.
- */
- if (kept)
- die("insanely many options to grep");
-
- /*
- * If we have two or more paths, we do not have to do
- * anything special, but we need to push /dev/null to
- * get "-H" behaviour of GNU grep portably but when we
- * are not doing "-l" nor "-L" nor "-c".
- */
- if (count == 1 &&
- !opt->name_only &&
- !opt->unmatch_name_only &&
- !opt->count) {
- argv[argc++] = "/dev/null";
- argv[argc] = NULL;
- }
- }
-
- else if (kept) {
- /*
- * Called because we found many paths and haven't finished
- * iterating over the cache yet. We keep two paths
- * for the concluding call. argv[argc-2] and argv[argc-1]
- * has the last two paths, so save the first one away,
- * replace it with NULL while sending the list to grep,
- * and recover them after we are done.
- */
- *kept = 2;
- kept_0 = argv[argc-2];
- argv[argc-2] = NULL;
- argc -= 2;
- }
-
- if (opt->pre_context || opt->post_context) {
- /*
- * grep handles hunk marks between files, but we need to
- * do that ourselves between multiple calls.
- */
- if (opt->show_hunk_mark)
- write_or_die(1, "--\n", 3);
- else
- opt->show_hunk_mark = 1;
- }
-
- status = exec_grep(argc, argv);
-
- if (kept_0) {
- /*
- * Then recover them. Now the last arg is beyond the
- * terminating NULL which is at argc, and the second
- * from the last is what we saved away in kept_0
- */
- argv[arg0++] = kept_0;
- argv[arg0] = argv[argc+1];
- }
- return status;
-}
-
-static void grep_add_color(struct strbuf *sb, const char *escape_seq)
-{
- size_t orig_len = sb->len;
-
- while (*escape_seq) {
- if (*escape_seq == 'm')
- strbuf_addch(sb, ';');
- else if (*escape_seq != '\033' && *escape_seq != '[')
- strbuf_addch(sb, *escape_seq);
- escape_seq++;
- }
- if (sb->len > orig_len && sb->buf[sb->len - 1] == ';')
- strbuf_setlen(sb, sb->len - 1);
-}
-
-static int has_skip_worktree_entry(struct grep_opt *opt, const char **paths)
-{
- int nr;
- for (nr = 0; nr < active_nr; nr++) {
- struct cache_entry *ce = active_cache[nr];
- if (!S_ISREG(ce->ce_mode))
- continue;
- if (!pathspec_matches(paths, ce->name, opt->max_depth))
- continue;
- if (ce_skip_worktree(ce))
- return 1;
- }
- return 0;
-}
-
-static int external_grep(struct grep_opt *opt, const char **paths, int cached)
-{
- int i, nr, argc, hit, len, status;
- const char *argv[MAXARGS+1];
- char randarg[ARGBUF];
- char *argptr = randarg;
- struct grep_pat *p;
-
- if (opt->extended || (opt->relative && opt->prefix_length)
- || has_skip_worktree_entry(opt, paths))
- return -1;
- len = nr = 0;
- push_arg("grep");
- if (opt->fixed)
- push_arg("-F");
- if (opt->linenum)
- push_arg("-n");
- if (!opt->pathname)
- push_arg("-h");
- if (opt->regflags & REG_EXTENDED)
- push_arg("-E");
- if (opt->ignore_case)
- push_arg("-i");
- if (opt->binary == GREP_BINARY_NOMATCH)
- push_arg("-I");
- if (opt->word_regexp)
- push_arg("-w");
- if (opt->name_only)
- push_arg("-l");
- if (opt->unmatch_name_only)
- push_arg("-L");
- if (opt->null_following_name)
- /* in GNU grep git's "-z" translates to "-Z" */
- push_arg("-Z");
- if (opt->count)
- push_arg("-c");
- if (opt->post_context || opt->pre_context) {
- if (opt->post_context != opt->pre_context) {
- if (opt->pre_context) {
- push_arg("-B");
- len += snprintf(argptr, sizeof(randarg)-len,
- "%u", opt->pre_context) + 1;
- if (sizeof(randarg) <= len)
- die("maximum length of args exceeded");
- push_arg(argptr);
- argptr += len;
- }
- if (opt->post_context) {
- push_arg("-A");
- len += snprintf(argptr, sizeof(randarg)-len,
- "%u", opt->post_context) + 1;
- if (sizeof(randarg) <= len)
- die("maximum length of args exceeded");
- push_arg(argptr);
- argptr += len;
- }
- }
- else {
- push_arg("-C");
- len += snprintf(argptr, sizeof(randarg)-len,
- "%u", opt->post_context) + 1;
- if (sizeof(randarg) <= len)
- die("maximum length of args exceeded");
- push_arg(argptr);
- argptr += len;
- }
- }
- for (p = opt->pattern_list; p; p = p->next) {
- push_arg("-e");
- push_arg(p->pattern);
- }
- if (opt->color) {
- struct strbuf sb = STRBUF_INIT;
-
- grep_add_color(&sb, opt->color_match);
- setenv("GREP_COLOR", sb.buf, 1);
-
- strbuf_reset(&sb);
- strbuf_addstr(&sb, "mt=");
- grep_add_color(&sb, opt->color_match);
- strbuf_addstr(&sb, ":sl=:cx=:fn=:ln=:bn=:se=");
- setenv("GREP_COLORS", sb.buf, 1);
-
- strbuf_release(&sb);
-
- if (opt->color_external && strlen(opt->color_external) > 0)
- push_arg(opt->color_external);
- } else {
- unsetenv("GREP_COLOR");
- unsetenv("GREP_COLORS");
- }
- unsetenv("GREP_OPTIONS");
-
- hit = 0;
- argc = nr;
- for (i = 0; i < active_nr; i++) {
- struct cache_entry *ce = active_cache[i];
- char *name;
- int kept;
- if (!S_ISREG(ce->ce_mode))
- continue;
- if (!pathspec_matches(paths, ce->name, opt->max_depth))
- continue;
- name = ce->name;
- if (name[0] == '-') {
- int len = ce_namelen(ce);
- name = xmalloc(len + 3);
- memcpy(name, "./", 2);
- memcpy(name + 2, ce->name, len + 1);
- }
- argv[argc++] = name;
- if (MAXARGS <= argc) {
- status = flush_grep(opt, argc, nr, argv, &kept);
- if (0 < status)
- hit = 1;
- argc = nr + kept;
- }
- if (ce_stage(ce)) {
- do {
- i++;
- } while (i < active_nr &&
- !strcmp(ce->name, active_cache[i]->name));
- i--; /* compensate for loop control */
- }
- }
- if (argc > nr) {
- status = flush_grep(opt, argc, nr, argv, NULL);
- if (0 < status)
- hit = 1;
- }
- return hit;
-}
-#endif
-
-static int grep_cache(struct grep_opt *opt, const char **paths, int cached,
- int external_grep_allowed)
-{
- int hit = 0;
- int nr;
- read_cache();
-
-#if !NO_EXTERNAL_GREP
- /*
- * Use the external "grep" command for the case where
- * we grep through the checked-out files. It tends to
- * be a lot more optimized
- */
- if (!cached && external_grep_allowed) {
- hit = external_grep(opt, paths, cached);
- if (hit >= 0)
- return hit;
- hit = 0;
- }
-#endif
-
- for (nr = 0; nr < active_nr; nr++) {
- struct cache_entry *ce = active_cache[nr];
- if (!S_ISREG(ce->ce_mode))
- continue;
- if (!pathspec_matches(paths, ce->name, opt->max_depth))
- continue;
- /*
- * 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) || ce_skip_worktree(ce)) {
- if (ce_stage(ce))
- continue;
- hit |= grep_sha1(opt, ce->sha1, ce->name, 0);
- }
- else
- hit |= grep_file(opt, ce->name);
- if (ce_stage(ce)) {
- do {
- nr++;
- } while (nr < active_nr &&
- !strcmp(ce->name, active_cache[nr]->name));
- nr--; /* compensate for loop control */
- }
- }
- free_grep_patterns(opt);
- return hit;
-}
-
-static int grep_tree(struct grep_opt *opt, const char **paths,
- struct tree_desc *tree,
- const char *tree_name, const char *base)
-{
- int len;
- int hit = 0;
- struct name_entry entry;
- char *down;
- int tn_len = strlen(tree_name);
- struct strbuf pathbuf;
-
- strbuf_init(&pathbuf, PATH_MAX + tn_len);
-
- if (tn_len) {
- strbuf_add(&pathbuf, tree_name, tn_len);
- strbuf_addch(&pathbuf, ':');
- tn_len = pathbuf.len;
- }
- strbuf_addstr(&pathbuf, base);
- len = pathbuf.len;
-
- while (tree_entry(tree, &entry)) {
- int te_len = tree_entry_len(entry.path, entry.sha1);
- pathbuf.len = len;
- strbuf_add(&pathbuf, entry.path, te_len);
-
- if (S_ISDIR(entry.mode))
- /* Match "abc/" against pathspec to
- * decide if we want to descend into "abc"
- * directory.
- */
- strbuf_addch(&pathbuf, '/');
-
- down = pathbuf.buf + tn_len;
- if (!pathspec_matches(paths, down, opt->max_depth))
- ;
- else if (S_ISREG(entry.mode))
- hit |= grep_sha1(opt, entry.sha1, pathbuf.buf, tn_len);
- else if (S_ISDIR(entry.mode)) {
- enum object_type type;
- struct tree_desc sub;
- void *data;
- unsigned long size;
-
- data = read_sha1_file(entry.sha1, &type, &size);
- if (!data)
- die("unable to read tree (%s)",
- sha1_to_hex(entry.sha1));
- init_tree_desc(&sub, data, size);
- hit |= grep_tree(opt, paths, &sub, tree_name, down);
- free(data);
- }
- }
- strbuf_release(&pathbuf);
- return hit;
-}
-
-static int grep_object(struct grep_opt *opt, const char **paths,
- struct object *obj, const char *name)
-{
- if (obj->type == OBJ_BLOB)
- return grep_sha1(opt, obj->sha1, name, 0);
- if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) {
- struct tree_desc tree;
- void *data;
- unsigned long size;
- int hit;
- data = read_object_with_reference(obj->sha1, tree_type,
- &size, NULL);
- if (!data)
- die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
- init_tree_desc(&tree, data, size);
- hit = grep_tree(opt, paths, &tree, name, "");
- free(data);
- return hit;
- }
- die("unable to grep from object of type %s", typename(obj->type));
-}
-
-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;
- FILE *patterns;
- int lno = 0;
- struct strbuf sb = STRBUF_INIT;
-
- patterns = fopen(arg, "r");
- if (!patterns)
- die_errno("cannot open '%s'", arg);
- while (strbuf_getline(&sb, patterns, '\n') == 0) {
- /* ignore empty line like grep does */
- if (sb.len == 0)
- continue;
- append_grep_pattern(grep_opt, strbuf_detach(&sb, NULL), arg,
- ++lno, GREP_PATTERN);
- }
- 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;
-}
-
-static int help_callback(const struct option *opt, const char *arg, int unset)
-{
- return -1;
-}
-
-int cmd_grep(int argc, const char **argv, const char *prefix)
-{
- int hit = 0;
- int cached = 0;
- int external_grep_allowed = 1;
- int seen_dashdash = 0;
- struct grep_opt opt;
- struct object_array list = { 0, 0, NULL };
- const char **paths = NULL;
- int i;
- int dummy;
- struct option options[] = {
- OPT_BOOLEAN(0, "cached", &cached,
- "search in index instead of in the work tree"),
- OPT_GROUP(""),
- OPT_BOOLEAN('v', "invert-match", &opt.invert,
- "show non-matching lines"),
- OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case,
- "case insensitive matching"),
- OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
- "match patterns only at word boundaries"),
- OPT_SET_INT('a', "text", &opt.binary,
- "process binary files as text", GREP_BINARY_TEXT),
- OPT_SET_INT('I', NULL, &opt.binary,
- "don't match patterns in binary files",
- GREP_BINARY_NOMATCH),
- { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth",
- "descend at most <depth> levels", PARSE_OPT_NONEG,
- NULL, 1 },
- OPT_GROUP(""),
- OPT_BIT('E', "extended-regexp", &opt.regflags,
- "use extended POSIX regular expressions", REG_EXTENDED),
- OPT_NEGBIT('G', "basic-regexp", &opt.regflags,
- "use basic POSIX regular expressions (default)",
- REG_EXTENDED),
- OPT_BOOLEAN('F', "fixed-strings", &opt.fixed,
- "interpret patterns as fixed strings"),
- OPT_GROUP(""),
- OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"),
- OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1),
- OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1),
- OPT_NEGBIT(0, "full-name", &opt.relative,
- "show filenames relative to top directory", 1),
- OPT_BOOLEAN('l', "files-with-matches", &opt.name_only,
- "show only filenames instead of matching lines"),
- OPT_BOOLEAN(0, "name-only", &opt.name_only,
- "synonym for --files-with-matches"),
- OPT_BOOLEAN('L', "files-without-match",
- &opt.unmatch_name_only,
- "show only the names of files without match"),
- OPT_BOOLEAN('z', "null", &opt.null_following_name,
- "print NUL after filenames"),
- OPT_BOOLEAN('c', "count", &opt.count,
- "show the number of matches instead of matching lines"),
- OPT_SET_INT(0, "color", &opt.color, "highlight matches", 1),
- OPT_GROUP(""),
- OPT_CALLBACK('C', NULL, &opt, "n",
- "show <n> context lines before and after matches",
- context_callback),
- OPT_INTEGER('B', NULL, &opt.pre_context,
- "show <n> context lines before matches"),
- OPT_INTEGER('A', NULL, &opt.post_context,
- "show <n> context lines after matches"),
- OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM",
- context_callback),
- OPT_BOOLEAN('p', "show-function", &opt.funcname,
- "show a line with the function name before matches"),
- OPT_GROUP(""),
- OPT_CALLBACK('f', NULL, &opt, "file",
- "read patterns from file", file_callback),
- { OPTION_CALLBACK, 'e', NULL, &opt, "pattern",
- "match <pattern>", PARSE_OPT_NONEG, pattern_callback },
- { OPTION_CALLBACK, 0, "and", &opt, NULL,
- "combine patterns specified with -e",
- PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
- OPT_BOOLEAN(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_BOOLEAN(0, "all-match", &opt.all_match,
- "show only matches from files that match all patterns"),
- OPT_GROUP(""),
-#if NO_EXTERNAL_GREP
- OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed,
- "allow calling of grep(1) (ignored by this build)"),
-#else
- OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed,
- "allow calling of grep(1) (default)"),
-#endif
- { OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage",
- PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback },
- OPT_END()
- };
-
- /*
- * 'git grep -h', unlike 'git grep -h <pattern>', is a request
- * to show usage information and exit.
- */
- if (argc == 2 && !strcmp(argv[1], "-h"))
- usage_with_options(grep_usage, options);
-
- memset(&opt, 0, sizeof(opt));
- opt.prefix = prefix;
- opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
- opt.relative = 1;
- opt.pathname = 1;
- opt.pattern_tail = &opt.pattern_list;
- opt.regflags = REG_NEWLINE;
- opt.max_depth = -1;
-
- strcpy(opt.color_match, GIT_COLOR_RED GIT_COLOR_BOLD);
- opt.color = -1;
- git_config(grep_config, &opt);
- if (opt.color == -1)
- opt.color = git_use_color_default;
-
- /*
- * 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 |
- PARSE_OPT_NO_INTERNAL_HELP);
-
- /* 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 ((opt.color && !opt.color_external) || opt.funcname)
- external_grep_allowed = 0;
- if (!opt.pattern_list)
- die("no pattern given.");
- if (!opt.fixed && opt.ignore_case)
- opt.regflags |= REG_ICASE;
- if ((opt.regflags != REG_NEWLINE) && opt.fixed)
- die("cannot mix --fixed-strings and regexp");
- compile_grep_patterns(&opt);
-
- /* Check revs and then paths */
- for (i = 0; i < argc; i++) {
- const char *arg = argv[i];
- unsigned char sha1[20];
- /* Is it a rev? */
- if (!get_sha1(arg, sha1)) {
- struct object *object = parse_object(sha1);
- if (!object)
- die("bad object %s", arg);
- add_object_array(object, arg, &list);
- continue;
- }
- if (!strcmp(arg, "--")) {
- i++;
- seen_dashdash = 1;
- }
- break;
- }
-
- /* The rest are paths */
- if (!seen_dashdash) {
- int j;
- for (j = i; j < argc; j++)
- verify_filename(prefix, argv[j]);
- }
-
- if (i < argc)
- paths = get_pathspec(prefix, argv + i);
- else if (prefix) {
- paths = xcalloc(2, sizeof(const char *));
- paths[0] = prefix;
- paths[1] = NULL;
- }
-
- if (!list.nr) {
- if (!cached)
- setup_work_tree();
- return !grep_cache(&opt, paths, cached, external_grep_allowed);
- }
-
- if (cached)
- die("both --cached and trees are given.");
-
- for (i = 0; i < list.nr; i++) {
- struct object *real_obj;
- real_obj = deref_tag(list.objects[i].item, NULL, 0);
- if (grep_object(&opt, paths, real_obj, list.objects[i].name))
- hit = 1;
- }
- free_grep_patterns(&opt);
- return !hit;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-09 09:23:23 +0000