diff options
Diffstat (limited to 'builtin-grep.c')
| -rw-r--r-- | builtin-grep.c | 255 |
1 files changed, 134 insertions, 121 deletions
diff --git a/builtin-grep.c b/builtin-grep.c index c3e6701aa..4be1514a4 100644 --- a/builtin-grep.c +++ b/builtin-grep.c @@ -8,8 +8,7 @@ #include "tree.h" #include "commit.h" #include "tag.h" -#include "diff.h" -#include "revision.h" +#include "tree-walk.h" #include "builtin.h" #include <regex.h> #include <fnmatch.h> @@ -18,15 +17,15 @@ * git grep pathspecs are somewhat different from diff-tree pathspecs; * pathname wildcards are allowed. */ -static int pathspec_matches(struct diff_options *opt, const char *name) +static int pathspec_matches(const char **paths, const char *name) { int namelen, i; - if (!opt->nr_paths) + if (!paths || !*paths) return 1; namelen = strlen(name); - for (i = 0; i < opt->nr_paths; i++) { - const char *match = opt->paths[i]; - int matchlen = opt->pathlens[i]; + for (i = 0; paths[i]; i++) { + const char *match = paths[i]; + int matchlen = strlen(match); const char *slash, *cp; if ((matchlen <= namelen) && @@ -241,7 +240,7 @@ static int grep_file(struct grep_opt *opt, const char *filename) return i; } -static int grep_cache(struct grep_opt *opt, struct rev_info *revs, int cached) +static int grep_cache(struct grep_opt *opt, const char **paths, int cached) { int hit = 0; int nr; @@ -251,7 +250,7 @@ static int grep_cache(struct grep_opt *opt, struct rev_info *revs, int cached) struct cache_entry *ce = active_cache[nr]; if (ce_stage(ce) || !S_ISREG(ntohl(ce->ce_mode))) continue; - if (!pathspec_matches(&revs->diffopt, ce->name)) + if (!pathspec_matches(paths, ce->name)) continue; if (cached) hit |= grep_sha1(opt, ce->sha1, ce->name); @@ -261,7 +260,7 @@ static int grep_cache(struct grep_opt *opt, struct rev_info *revs, int cached) return hit; } -static int grep_tree(struct grep_opt *opt, struct rev_info *revs, +static int grep_tree(struct grep_opt *opt, const char **paths, struct tree_desc *tree, const char *tree_name, const char *base) { @@ -297,7 +296,7 @@ static int grep_tree(struct grep_opt *opt, struct rev_info *revs, */ strcpy(path_buf + len + pathlen, "/"); - if (!pathspec_matches(&revs->diffopt, down)) + if (!pathspec_matches(paths, down)) ; else if (S_ISREG(mode)) hit |= grep_sha1(opt, sha1, path_buf); @@ -310,7 +309,7 @@ static int grep_tree(struct grep_opt *opt, struct rev_info *revs, die("unable to read tree (%s)", sha1_to_hex(sha1)); sub.buf = data; - hit |= grep_tree(opt, revs, &sub, tree_name, down); + hit |= grep_tree(opt, paths, &sub, tree_name, down); free(data); } update_tree_entry(tree); @@ -318,7 +317,7 @@ static int grep_tree(struct grep_opt *opt, struct rev_info *revs, return hit; } -static int grep_object(struct grep_opt *opt, struct rev_info *revs, +static int grep_object(struct grep_opt *opt, const char **paths, struct object *obj, const char *name) { if (!strcmp(obj->type, blob_type)) @@ -333,7 +332,7 @@ static int grep_object(struct grep_opt *opt, struct rev_info *revs, if (!data) die("unable to read tree (%s)", sha1_to_hex(obj->sha1)); tree.buf = data; - hit = grep_tree(opt, revs, &tree, name, ""); + hit = grep_tree(opt, paths, &tree, name, ""); free(data); return hit; } @@ -345,102 +344,119 @@ static const char builtin_grep_usage[] = int cmd_grep(int argc, const char **argv, char **envp) { - struct rev_info rev; - const char **dst, **src; int err; int hit = 0; - int no_more_arg = 0; - int seen_range = 0; + int no_more_flags = 0; int seen_noncommit = 0; int cached = 0; struct grep_opt opt; - struct object_list *list; + struct object_list *list, **tail, *object_list = NULL; + const char *prefix = setup_git_directory(); + const char **paths = NULL; memset(&opt, 0, sizeof(opt)); opt.regflags = REG_NEWLINE; /* - * Interpret and remove the grep options upfront. Sigh... + * No point using rev_info, really. */ - for (dst = src = &argv[1]; src < argc + argv; ) { - const char *arg = *src++; - if (!no_more_arg) { - if (!strcmp("--", arg)) { - no_more_arg = 1; - *dst++ = arg; - continue; - } - 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("-e", arg)) { - if (src < argc + argv) { - opt.pattern = *src++; - continue; - } + 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 (!strcmp("-A", arg) || + !strcmp("-B", arg) || + !strcmp("-C", arg)) { + unsigned num; + if (argc <= 1 || + sscanf(*++argv, "%u", &num) != 1) usage(builtin_grep_usage); + argc--; + switch (arg[1]) { + case 'A': + opt.post_context = num; + break; + case 'C': + opt.post_context = num; + case 'B': + opt.pre_context = num; + break; } - 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("-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; } - if (!strcmp("-l", arg) || - !strcmp("--files-with-matches", arg)) { - opt.name_only = 1; - continue; - } - if (!strcmp("-A", arg) || - !strcmp("-B", arg) || - !strcmp("-C", arg)) { - unsigned num; - if ((argc + argv <= src) || - sscanf(*src++, "%u", &num) != 1) - usage(builtin_grep_usage); - switch (arg[1]) { - case 'A': - opt.post_context = num; - break; - case 'C': - opt.post_context = num; - case 'B': - opt.pre_context = num; - break; - } - continue; - } + usage(builtin_grep_usage); + } + if (!strcmp("--", arg)) { + no_more_flags = 1; + 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; } - *dst++ = arg; } if (!opt.pattern) die("no pattern given."); - err = regcomp(&opt.regexp, opt.pattern, opt.regflags); if (err) { char errbuf[1024]; @@ -448,11 +464,32 @@ int cmd_grep(int argc, const char **argv, char **envp) 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++; + } + if (1 < argc) + paths = get_pathspec(prefix, argv + 1); + else if (prefix) { + paths = xcalloc(2, sizeof(const char *)); + paths[0] = prefix; + paths[1] = NULL; + } - init_revisions(&rev); - *dst = NULL; - argc = setup_revisions(dst - argv, argv, &rev, NULL); - + if (!object_list) + 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/". @@ -460,43 +497,19 @@ int cmd_grep(int argc, const char **argv, char **envp) * "grep -e foo v1.0.0:Documentation/ master..next" * so detect that and complain. */ - for (list = rev.pending_objects; list; list = list->next) { + for (list = object_list; list; list = list->next) { struct object *real_obj; - if (list->item->flags & UNINTERESTING) - seen_range = 1; real_obj = deref_tag(list->item, NULL, 0); if (strcmp(real_obj->type, commit_type)) seen_noncommit = 1; } - if (!rev.pending_objects) - return !grep_cache(&opt, &rev, cached); if (cached) die("both --cached and revisions given."); - if (seen_range && seen_noncommit) - die("both A..B and non commit are given."); - if (seen_range) { - struct commit *commit; - prepare_revision_walk(&rev); - while ((commit = get_revision(&rev)) != NULL) { - unsigned char *sha1 = commit->object.sha1; - const char *n = find_unique_abbrev(sha1, rev.abbrev); - char rev_name[41]; - strcpy(rev_name, n); - if (grep_object(&opt, &rev, &commit->object, rev_name)) - hit = 1; - commit->buffer = NULL; - } - return !hit; - } - - /* all of them are non-commit; do not walk, and - * do not lose their names. - */ - for (list = rev.pending_objects; list; list = list->next) { + for (list = object_list; list; list = list->next) { struct object *real_obj; real_obj = deref_tag(list->item, NULL, 0); - if (grep_object(&opt, &rev, real_obj, list->name)) + if (grep_object(&opt, paths, real_obj, list->name)) hit = 1; } return !hit; |