diff options
| -rw-r--r-- | builtin-grep.c | 406 | ||||
| -rw-r--r-- | grep.h | 28 |
2 files changed, 194 insertions, 240 deletions
diff --git a/builtin-grep.c b/builtin-grep.c index 620399f9ab..169a91c17e 100644 --- a/builtin-grep.c +++ b/builtin-grep.c @@ -10,6 +10,7 @@ #include "tag.h" #include "tree-walk.h" #include "builtin.h" +#include "parse-options.h" #include "grep.h" #ifndef NO_EXTERNAL_GREP @@ -20,6 +21,11 @@ #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; @@ -559,15 +565,86 @@ static int grep_object(struct grep_opt *opt, const char **paths, die("unable to grep from object of type %s", typename(obj->type)); } -static const char builtin_grep_usage[] = -"git grep <option>* [-e] <pattern> <rev>* [[--] <path>...]"; +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; +} + +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; + + patterns = fopen(arg, "r"); + if (!patterns) + die("'%s': %s", arg, strerror(errno)); + 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; +} + +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; +} + +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; +} + +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; +} + +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; +} + +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 emsg_invalid_context_len[] = -"%s: invalid context length argument"; -static const char emsg_missing_context_len[] = -"missing context length argument"; -static const char emsg_missing_argument[] = -"option requires an argument -%s"; +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) { @@ -579,6 +656,89 @@ int cmd_grep(int argc, const char **argv, const char *prefix) 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_BIT('i', "ignore-case", &opt.regflags, + "case insensitive matching", REG_ICASE), + 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), + 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_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() + }; memset(&opt, 0, sizeof(opt)); opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0; @@ -603,223 +763,17 @@ int cmd_grep(int argc, const char **argv, const char *prefix) * 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("--no-ext-grep", arg)) { - external_grep_allowed = 0; - continue; - } - if (!strcmp("-a", arg) || - !strcmp("--text", arg)) { - opt.binary = GREP_BINARY_TEXT; - continue; - } - if (!strcmp("-i", arg) || - !strcmp("--ignore-case", arg)) { - opt.regflags |= REG_ICASE; - continue; - } - if (!strcmp("-I", arg)) { - opt.binary = GREP_BINARY_NOMATCH; - 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("-F", arg) || - !strcmp("--fixed-strings", arg)) { - opt.fixed = 1; - 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)) { - opt.pathname = 0; - continue; - } - if (!strcmp("-H", arg)) { - opt.pathname = 1; - continue; - } - if (!strcmp("-l", arg) || - !strcmp("--name-only", arg) || - !strcmp("--files-with-matches", arg)) { - opt.name_only = 1; - continue; - } - if (!strcmp("-L", arg) || - !strcmp("--files-without-match", arg)) { - opt.unmatch_name_only = 1; - continue; - } - if (!strcmp("-z", arg) || - !strcmp("--null", arg)) { - opt.null_following_name = 1; - continue; - } - if (!strcmp("-c", arg) || - !strcmp("--count", arg)) { - opt.count = 1; - continue; - } - if (!strcmp("-w", arg) || - !strcmp("--word-regexp", arg)) { - opt.word_regexp = 1; - continue; - } - if (!prefixcmp(arg, "-A") || - !prefixcmp(arg, "-B") || - !prefixcmp(arg, "-C") || - (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) - die(emsg_missing_context_len); - scan = *++argv; - argc--; - } - else - scan = arg + 2; - break; - default: - scan = arg + 1; - break; - } - if (strtoul_ui(scan, 10, &num)) - die(emsg_invalid_context_len, scan); - 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("-f", arg)) { - FILE *patterns; - int lno = 0; - char buf[1024]; - if (argc <= 1) - die(emsg_missing_argument, arg); - patterns = fopen(argv[1], "r"); - if (!patterns) - die("'%s': %s", argv[1], strerror(errno)); - while (fgets(buf, sizeof(buf), patterns)) { - int len = strlen(buf); - if (len && buf[len-1] == '\n') - buf[len-1] = 0; - /* ignore empty line like grep does */ - if (!buf[0]) - continue; - append_grep_pattern(&opt, xstrdup(buf), - argv[1], ++lno, - GREP_PATTERN); - } - fclose(patterns); - argv++; - argc--; - continue; - } - if (!strcmp("--not", arg)) { - append_grep_pattern(&opt, arg, "command line", 0, - GREP_NOT); - continue; - } - if (!strcmp("--and", arg)) { - append_grep_pattern(&opt, arg, "command line", 0, - GREP_AND); - continue; - } - if (!strcmp("--or", arg)) - continue; /* no-op */ - if (!strcmp("(", arg)) { - append_grep_pattern(&opt, arg, "command line", 0, - GREP_OPEN_PAREN); - continue; - } - if (!strcmp(")", arg)) { - append_grep_pattern(&opt, arg, "command line", 0, - GREP_CLOSE_PAREN); - continue; - } - if (!strcmp("--all-match", arg)) { - opt.all_match = 1; - continue; - } - if (!strcmp("-e", arg)) { - if (1 < argc) { - append_grep_pattern(&opt, argv[1], - "-e option", 0, - GREP_PATTERN); - argv++; - argc--; - continue; - } - die(emsg_missing_argument, arg); - } - if (!strcmp("--full-name", arg)) { - opt.relative = 0; - continue; - } - if (!strcmp("--color", arg)) { - opt.color = 1; - continue; - } - if (!strcmp("--no-color", arg)) { - opt.color = 0; - continue; - } - if (!strcmp("--", arg)) { - /* later processing wants to have this at argv[1] */ - argv--; - argc++; - break; - } - if (*arg == '-') - usage(builtin_grep_usage); - - /* First unrecognized non-option token */ - if (!opt.pattern_list) { - append_grep_pattern(&opt, arg, "command line", 0, - GREP_PATTERN); - break; - } - else { - /* We are looking at the first path or rev; - * it is found at argv[1] after leaving the - * loop. - */ - argc++; argv--; - break; - } + argc = parse_options(argc, argv, 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) @@ -831,7 +785,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) compile_grep_patterns(&opt); /* Check revs and then paths */ - for (i = 1; i < argc; i++) { + for (i = 0; i < argc; i++) { const char *arg = argv[i]; unsigned char sha1[20]; /* Is it a rev? */ @@ -61,23 +61,23 @@ struct grep_opt { struct grep_expr *pattern_expression; int prefix_length; regex_t regexp; - unsigned linenum:1; - unsigned invert:1; - unsigned status_only:1; - unsigned name_only:1; - unsigned unmatch_name_only:1; - unsigned count:1; - unsigned word_regexp:1; - unsigned fixed:1; - unsigned all_match:1; + int linenum; + int invert; + int status_only; + int name_only; + int unmatch_name_only; + int count; + int word_regexp; + int fixed; + int all_match; #define GREP_BINARY_DEFAULT 0 #define GREP_BINARY_NOMATCH 1 #define GREP_BINARY_TEXT 2 - unsigned binary:2; - unsigned extended:1; - unsigned relative:1; - unsigned pathname:1; - unsigned null_following_name:1; + int binary; + int extended; + int relative; + int pathname; + int null_following_name; int color; char color_match[COLOR_MAXLEN]; const char *color_external; |