#include "tag.h"
#include "tree-walk.h"
#include "builtin.h"
-#include <regex.h>
-#include <fnmatch.h>
+#include "parse-options.h"
+#include "userdiff.h"
+#include "grep.h"
+#include "quote.h"
+
+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.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)
+static int pathspec_matches(const char **paths, const char *name, int max_depth)
{
int namelen, i;
if (!paths || !*paths)
- return 1;
+ 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 *slash, *cp;
+ const char *cp, *meta;
- if ((matchlen <= namelen) &&
- !strncmp(name, match, matchlen) &&
- (match[matchlen-1] == '/' ||
- name[matchlen] == '\0' || name[matchlen] == '/'))
+ 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 name directory is worth
+ /* 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, slash = NULL; cp - match < matchlen; cp++) {
+ for (cp = match, meta = NULL; cp - match < matchlen; cp++) {
char ch = *cp;
- if (ch == '/')
- slash = cp;
- if (ch == '*' || ch == '[')
+ if (ch == '*' || ch == '[' || ch == '?') {
+ meta = cp;
break;
+ }
}
- if (!slash)
- slash = match; /* toplevel */
- else
- slash++;
- if (namelen <= slash - match) {
+ if (!meta)
+ meta = cp; /* fully literal */
+
+ if (namelen <= meta - match) {
/* Looking at "Documentation/" and
* the pattern says "Documentation/howto/", or
- * "Documentation/diff*.txt".
+ * "Documentation/diff*.txt". The name we
+ * have should match prefix.
*/
if (!memcmp(match, name, namelen))
return 1;
+ continue;
}
- else {
+
+ if (meta - match < namelen) {
/* Looking at "Documentation/howto/" and
- * the pattern says "Documentation/h*".
+ * the pattern says "Documentation/h*";
+ * match up to "Do.../h"; this avoids descending
+ * into "Documentation/technical/".
*/
- if (!memcmp(match, name, slash - match))
+ if (!memcmp(match, name, meta - match))
return 1;
+ continue;
}
}
return 0;
}
-struct grep_opt {
- const char *pattern;
- regex_t regexp;
- unsigned linenum:1;
- unsigned invert:1;
- unsigned name_only:1;
- int regflags;
- unsigned pre_context;
- unsigned post_context;
-};
-
-static char *end_of_line(char *cp, unsigned long *left)
-{
- unsigned long l = *left;
- while (l && *cp != '\n') {
- l--;
- cp++;
- }
- *left = l;
- return cp;
-}
-
-static void show_line(struct grep_opt *opt, const char *bol, const char *eol,
- const char *name, unsigned lno, char sign)
-{
- printf("%s%c", name, sign);
- if (opt->linenum)
- printf("%d%c", lno, sign);
- printf("%.*s\n", (int)(eol-bol), bol);
-}
-
-static int grep_buffer(struct grep_opt *opt, const char *name,
- char *buf, unsigned long size)
-{
- char *bol = buf;
- unsigned long left = size;
- unsigned lno = 1;
- struct pre_context_line {
- char *bol;
- char *eol;
- } *prev = NULL, *pcl;
- unsigned last_hit = 0;
- unsigned last_shown = 0;
- const char *hunk_mark = "";
-
- if (opt->pre_context)
- prev = xcalloc(opt->pre_context, sizeof(*prev));
- if (opt->pre_context || opt->post_context)
- hunk_mark = "--\n";
-
- while (left) {
- regmatch_t pmatch[10];
- char *eol, ch;
- int hit;
-
- eol = end_of_line(bol, &left);
- ch = *eol;
- *eol = 0;
-
- hit = !regexec(&opt->regexp, bol, ARRAY_SIZE(pmatch),
- pmatch, 0);
- if (opt->invert)
- hit = !hit;
- if (hit) {
- if (opt->name_only) {
- printf("%s\n", name);
- return 1;
- }
- /* Hit at this line. If we haven't shown the
- * pre-context lines, we would need to show them.
- */
- if (opt->pre_context) {
- unsigned from;
- if (opt->pre_context < lno)
- from = lno - opt->pre_context;
- else
- from = 1;
- if (from <= last_shown)
- from = last_shown + 1;
- if (last_shown && from != last_shown + 1)
- printf(hunk_mark);
- while (from < lno) {
- pcl = &prev[lno-from-1];
- show_line(opt, pcl->bol, pcl->eol,
- name, from, '-');
- from++;
- }
- last_shown = lno-1;
- }
- if (last_shown && lno != last_shown + 1)
- printf(hunk_mark);
- show_line(opt, bol, eol, name, lno, ':');
- last_shown = last_hit = lno;
- }
- else if (last_hit &&
- lno <= last_hit + opt->post_context) {
- /* If the last hit is within the post context,
- * we need to show this line.
- */
- if (last_shown && lno != last_shown + 1)
- printf(hunk_mark);
- show_line(opt, bol, eol, name, lno, '-');
- last_shown = lno;
- }
- if (opt->pre_context) {
- memmove(prev+1, prev,
- (opt->pre_context-1) * sizeof(*prev));
- prev->bol = bol;
- prev->eol = eol;
- }
- *eol = ch;
- bol = eol + 1;
- left--;
- lno++;
- }
- return !!last_hit;
-}
-
-static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char *name)
+static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char *name, int tree_name_len)
{
unsigned long size;
char *data;
- char type[20];
+ enum object_type type;
int hit;
- data = read_sha1_file(sha1, type, &size);
+ 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;
}
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)
return 0; /* empty file -- no grep hit */
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(st.st_size + 1);
- if (st.st_size != xread(i, data, st.st_size)) {
+ 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);
- i = grep_buffer(opt, filename, data, st.st_size);
+ 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;
}
for (nr = 0; nr < active_nr; nr++) {
struct cache_entry *ce = active_cache[nr];
- if (ce_stage(ce) || !S_ISREG(ntohl(ce->ce_mode)))
+ if (!S_ISREG(ce->ce_mode))
continue;
- if (!pathspec_matches(paths, ce->name))
+ if (!pathspec_matches(paths, ce->name, opt->max_depth))
continue;
- if (cached)
- hit |= grep_sha1(opt, ce->sha1, ce->name);
+ /*
+ * 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)) {
+ 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;
}
struct tree_desc *tree,
const char *tree_name, const char *base)
{
- unsigned mode;
int len;
int hit = 0;
- const char *path;
- const unsigned char *sha1;
+ struct name_entry entry;
char *down;
- char *path_buf = xmalloc(PATH_MAX + strlen(tree_name) + 100);
+ int tn_len = strlen(tree_name);
+ struct strbuf pathbuf;
- if (tree_name[0]) {
- int offset = sprintf(path_buf, "%s:", tree_name);
- down = path_buf + offset;
- strcat(down, base);
- }
- else {
- down = path_buf;
- strcpy(down, base);
+ strbuf_init(&pathbuf, PATH_MAX + tn_len);
+
+ if (tn_len) {
+ strbuf_add(&pathbuf, tree_name, tn_len);
+ strbuf_addch(&pathbuf, ':');
+ tn_len = pathbuf.len;
}
- len = strlen(path_buf);
+ strbuf_addstr(&pathbuf, base);
+ len = pathbuf.len;
- while (tree->size) {
- int pathlen;
- sha1 = tree_entry_extract(tree, &path, &mode);
- pathlen = strlen(path);
- strcpy(path_buf + len, path);
+ 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(mode))
+ if (S_ISDIR(entry.mode))
/* Match "abc/" against pathspec to
* decide if we want to descend into "abc"
* directory.
*/
- strcpy(path_buf + len + pathlen, "/");
+ strbuf_addch(&pathbuf, '/');
- if (!pathspec_matches(paths, down))
+ down = pathbuf.buf + tn_len;
+ if (!pathspec_matches(paths, down, opt->max_depth))
;
- else if (S_ISREG(mode))
- hit |= grep_sha1(opt, sha1, path_buf);
- else if (S_ISDIR(mode)) {
- char type[20];
+ 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;
- data = read_sha1_file(sha1, type, &sub.size);
+ unsigned long size;
+
+ data = read_sha1_file(entry.sha1, &type, &size);
if (!data)
die("unable to read tree (%s)",
- sha1_to_hex(sha1));
- sub.buf = data;
+ sha1_to_hex(entry.sha1));
+ init_tree_desc(&sub, data, size);
hit |= grep_tree(opt, paths, &sub, tree_name, down);
free(data);
}
- update_tree_entry(tree);
}
+ strbuf_release(&pathbuf);
return hit;
}
static int grep_object(struct grep_opt *opt, const char **paths,
struct object *obj, const char *name)
{
- if (!strcmp(obj->type, blob_type))
- return grep_sha1(opt, obj->sha1, name);
- if (!strcmp(obj->type, commit_type) ||
- !strcmp(obj->type, tree_type)) {
+ 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,
- &tree.size, NULL);
+ &size, NULL);
if (!data)
die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
- tree.buf = data;
+ 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", obj->type);
+ 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 const char builtin_grep_usage[] =
-"git-grep <option>* <rev>* [-e] <pattern> [<path>...]";
+static int help_callback(const struct option *opt, const char *arg, int unset)
+{
+ return -1;
+}
-int cmd_grep(int argc, const char **argv, char **envp)
+int cmd_grep(int argc, const char **argv, const char *prefix)
{
- int err;
int hit = 0;
- int no_more_flags = 0;
- int seen_noncommit = 0;
int cached = 0;
+ int seen_dashdash = 0;
+ int external_grep_allowed__ignored;
struct grep_opt opt;
- struct object_list *list, **tail, *object_list = NULL;
- const char *prefix = setup_git_directory();
+ 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(""),
+ OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored,
+ "allow calling of grep(1) (ignored by this build)"),
+ { 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;
/*
- * No point using rev_info, really.
+ * 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.
*/
- while (1 < argc) {
- const char *arg = argv[1];
- argc--; argv++;
- if (!strcmp("--cached", arg)) {
- cached = 1;
- continue;
- }
- if (!strcmp("-i", arg) ||
- !strcmp("--ignore-case", arg)) {
- opt.regflags |= REG_ICASE;
- continue;
- }
- if (!strcmp("-v", arg) ||
- !strcmp("--invert-match", arg)) {
- opt.invert = 1;
- continue;
- }
- if (!strcmp("-E", arg) ||
- !strcmp("--extended-regexp", arg)) {
- opt.regflags |= REG_EXTENDED;
- continue;
- }
- if (!strcmp("-G", arg) ||
- !strcmp("--basic-regexp", arg)) {
- opt.regflags &= ~REG_EXTENDED;
- continue;
- }
- if (!strcmp("-n", arg)) {
- opt.linenum = 1;
- continue;
- }
- if (!strcmp("-H", arg)) {
- /* We always show the pathname, so this
- * is a noop.
- */
- continue;
- }
- if (!strcmp("-l", arg) ||
- !strcmp("--files-with-matches", arg)) {
- opt.name_only = 1;
- continue;
- }
- if (!strncmp("-A", arg, 2) ||
- !strncmp("-B", arg, 2) ||
- !strncmp("-C", arg, 2) ||
- (arg[0] == '-' && '1' <= arg[1] && arg[1] <= '9')) {
- unsigned num;
- const char *scan;
- switch (arg[1]) {
- case 'A': case 'B': case 'C':
- if (!arg[2]) {
- if (argc <= 1)
- usage(builtin_grep_usage);
- scan = *++argv;
- argc--;
- }
- else
- scan = arg + 2;
- break;
- default:
- scan = arg + 1;
- break;
- }
- if (sscanf(scan, "%u", &num) != 1)
- usage(builtin_grep_usage);
- switch (arg[1]) {
- case 'A':
- opt.post_context = num;
- break;
- default:
- case 'C':
- opt.post_context = num;
- case 'B':
- opt.pre_context = num;
- break;
- }
- continue;
- }
- if (!strcmp("-e", arg)) {
- if (1 < argc) {
- /* We probably would want to do
- * -e pat1 -e pat2 as well later...
- */
- if (opt.pattern)
- die("more than one pattern?");
- opt.pattern = *++argv;
- argc--;
- continue;
- }
- usage(builtin_grep_usage);
- }
- if (!strcmp("--", arg)) {
- no_more_flags = 1;
+ 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.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;
}
- /* Either unrecognized option or a single pattern */
- if (!no_more_flags && *arg == '-')
- usage(builtin_grep_usage);
- if (!opt.pattern) {
- opt.pattern = arg;
- break;
- }
- else {
- /* We are looking at the first path or rev;
- * it is found at argv[0] after leaving the
- * loop.
- */
- argc++; argv--;
- break;
+ if (!strcmp(arg, "--")) {
+ i++;
+ seen_dashdash = 1;
}
+ break;
}
- if (!opt.pattern)
- die("no pattern given.");
- err = regcomp(&opt.regexp, opt.pattern, opt.regflags);
- if (err) {
- char errbuf[1024];
- regerror(err, &opt.regexp, errbuf, 1024);
- regfree(&opt.regexp);
- die("'%s': %s", opt.pattern, errbuf);
- }
- tail = &object_list;
- while (1 < argc) {
- struct object *object;
- struct object_list *elem;
- const char *arg = argv[1];
- unsigned char sha1[20];
- if (get_sha1(arg, sha1) < 0)
- break;
- object = parse_object(sha1);
- if (!object)
- die("bad object %s", arg);
- elem = object_list_insert(object, tail);
- elem->name = arg;
- tail = &elem->next;
- argc--; argv++;
+
+ /* The rest are paths */
+ if (!seen_dashdash) {
+ int j;
+ for (j = i; j < argc; j++)
+ verify_filename(prefix, argv[j]);
}
- if (1 < argc)
- paths = get_pathspec(prefix, argv + 1);
+
+ 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 (!object_list)
+ if (!list.nr) {
+ if (!cached)
+ setup_work_tree();
return !grep_cache(&opt, paths, cached);
- /*
- * Do not walk "grep -e foo master next pu -- Documentation/"
- * but do walk "grep -e foo master..next -- Documentation/".
- * Ranged request mixed with a blob or tree object, like
- * "grep -e foo v1.0.0:Documentation/ master..next"
- * so detect that and complain.
- */
- for (list = object_list; list; list = list->next) {
- struct object *real_obj;
- real_obj = deref_tag(list->item, NULL, 0);
- if (strcmp(real_obj->type, commit_type))
- seen_noncommit = 1;
}
+
if (cached)
- die("both --cached and revisions given.");
+ die("both --cached and trees are given.");
- for (list = object_list; list; list = list->next) {
+ for (i = 0; i < list.nr; i++) {
struct object *real_obj;
- real_obj = deref_tag(list->item, NULL, 0);
- if (grep_object(&opt, paths, real_obj, list->name))
+ 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;
}