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grep: use parseopt
Convert git-grep to parseopt. The bitfields in struct grep_opt are converted to full ints, increasing its size. This shouldn't be a problem as there is only a single instance in memory. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe
Junio C Hamano
parent
1b5fb44ad1
commit
3e230fa1b2
404
builtin-grep.c
404
builtin-grep.c
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@ -10,6 +10,7 @@
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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 "grep.h"
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#ifndef NO_EXTERNAL_GREP
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@ -20,6 +21,11 @@
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#endif
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#endif
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static char const * const grep_usage[] = {
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"git grep [options] [-e] <pattern> [<rev>...] [[--] path...]",
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NULL
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};
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static int grep_config(const char *var, const char *value, void *cb)
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{
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struct grep_opt *opt = cb;
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@ -559,15 +565,86 @@ static int grep_object(struct grep_opt *opt, const char **paths,
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die("unable to grep from object of type %s", typename(obj->type));
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}
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static const char builtin_grep_usage[] =
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"git grep <option>* [-e] <pattern> <rev>* [[--] <path>...]";
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int context_callback(const struct option *opt, const char *arg, int unset)
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{
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struct grep_opt *grep_opt = opt->value;
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int value;
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const char *endp;
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static const char emsg_invalid_context_len[] =
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"%s: invalid context length argument";
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static const char emsg_missing_context_len[] =
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"missing context length argument";
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static const char emsg_missing_argument[] =
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"option requires an argument -%s";
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if (unset) {
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grep_opt->pre_context = grep_opt->post_context = 0;
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return 0;
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}
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value = strtol(arg, (char **)&endp, 10);
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if (*endp) {
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return error("switch `%c' expects a numerical value",
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opt->short_name);
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}
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grep_opt->pre_context = grep_opt->post_context = value;
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return 0;
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}
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int file_callback(const struct option *opt, const char *arg, int unset)
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{
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struct grep_opt *grep_opt = opt->value;
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FILE *patterns;
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int lno = 0;
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struct strbuf sb;
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patterns = fopen(arg, "r");
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if (!patterns)
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die("'%s': %s", arg, strerror(errno));
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while (strbuf_getline(&sb, patterns, '\n') == 0) {
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/* ignore empty line like grep does */
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if (sb.len == 0)
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continue;
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append_grep_pattern(grep_opt, strbuf_detach(&sb, NULL), arg,
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++lno, GREP_PATTERN);
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}
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fclose(patterns);
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strbuf_release(&sb);
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return 0;
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}
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int not_callback(const struct option *opt, const char *arg, int unset)
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{
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struct grep_opt *grep_opt = opt->value;
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append_grep_pattern(grep_opt, "--not", "command line", 0, GREP_NOT);
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return 0;
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}
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int and_callback(const struct option *opt, const char *arg, int unset)
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{
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struct grep_opt *grep_opt = opt->value;
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append_grep_pattern(grep_opt, "--and", "command line", 0, GREP_AND);
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return 0;
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}
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int open_callback(const struct option *opt, const char *arg, int unset)
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{
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struct grep_opt *grep_opt = opt->value;
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append_grep_pattern(grep_opt, "(", "command line", 0, GREP_OPEN_PAREN);
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return 0;
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}
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int close_callback(const struct option *opt, const char *arg, int unset)
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{
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struct grep_opt *grep_opt = opt->value;
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append_grep_pattern(grep_opt, ")", "command line", 0, GREP_CLOSE_PAREN);
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return 0;
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}
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int pattern_callback(const struct option *opt, const char *arg, int unset)
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{
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struct grep_opt *grep_opt = opt->value;
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append_grep_pattern(grep_opt, arg, "-e option", 0, GREP_PATTERN);
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return 0;
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}
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int help_callback(const struct option *opt, const char *arg, int unset)
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{
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return -1;
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}
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int cmd_grep(int argc, const char **argv, const char *prefix)
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{
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@ -579,6 +656,89 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
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struct object_array list = { 0, 0, NULL };
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const char **paths = NULL;
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int i;
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int dummy;
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struct option options[] = {
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OPT_BOOLEAN(0, "cached", &cached,
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"search in index instead of in the work tree"),
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OPT_GROUP(""),
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OPT_BOOLEAN('v', "invert-match", &opt.invert,
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"show non-matching lines"),
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OPT_BIT('i', "ignore-case", &opt.regflags,
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"case insensitive matching", REG_ICASE),
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OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
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"match patterns only at word boundaries"),
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OPT_SET_INT('a', "text", &opt.binary,
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"process binary files as text", GREP_BINARY_TEXT),
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OPT_SET_INT('I', NULL, &opt.binary,
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"don't match patterns in binary files",
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GREP_BINARY_NOMATCH),
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OPT_GROUP(""),
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OPT_BIT('E', "extended-regexp", &opt.regflags,
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"use extended POSIX regular expressions", REG_EXTENDED),
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OPT_NEGBIT('G', "basic-regexp", &opt.regflags,
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"use basic POSIX regular expressions (default)",
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REG_EXTENDED),
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OPT_BOOLEAN('F', "fixed-strings", &opt.fixed,
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"interpret patterns as fixed strings"),
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OPT_GROUP(""),
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OPT_BOOLEAN('n', NULL, &opt.linenum, "show line numbers"),
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OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1),
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OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1),
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OPT_NEGBIT(0, "full-name", &opt.relative,
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"show filenames relative to top directory", 1),
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OPT_BOOLEAN('l', "files-with-matches", &opt.name_only,
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"show only filenames instead of matching lines"),
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OPT_BOOLEAN(0, "name-only", &opt.name_only,
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"synonym for --files-with-matches"),
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OPT_BOOLEAN('L', "files-without-match",
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&opt.unmatch_name_only,
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"show only the names of files without match"),
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OPT_BOOLEAN('z', "null", &opt.null_following_name,
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"print NUL after filenames"),
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OPT_BOOLEAN('c', "count", &opt.count,
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"show the number of matches instead of matching lines"),
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OPT_SET_INT(0, "color", &opt.color, "highlight matches", 1),
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OPT_GROUP(""),
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OPT_CALLBACK('C', NULL, &opt, "n",
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"show <n> context lines before and after matches",
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context_callback),
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OPT_INTEGER('B', NULL, &opt.pre_context,
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"show <n> context lines before matches"),
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OPT_INTEGER('A', NULL, &opt.post_context,
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"show <n> context lines after matches"),
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OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM",
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context_callback),
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OPT_GROUP(""),
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OPT_CALLBACK('f', NULL, &opt, "file",
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"read patterns from file", file_callback),
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{ OPTION_CALLBACK, 'e', NULL, &opt, "pattern",
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"match <pattern>", PARSE_OPT_NONEG, pattern_callback },
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{ OPTION_CALLBACK, 0, "and", &opt, NULL,
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"combine patterns specified with -e",
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PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback },
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OPT_BOOLEAN(0, "or", &dummy, ""),
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{ OPTION_CALLBACK, 0, "not", &opt, NULL, "",
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PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback },
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{ OPTION_CALLBACK, '(', NULL, &opt, NULL, "",
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PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
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open_callback },
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{ OPTION_CALLBACK, ')', NULL, &opt, NULL, "",
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PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH,
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close_callback },
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OPT_BOOLEAN(0, "all-match", &opt.all_match,
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"show only matches from files that match all patterns"),
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OPT_GROUP(""),
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#if NO_EXTERNAL_GREP
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OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed,
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"allow calling of grep(1) (ignored by this build)"),
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#else
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OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed,
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"allow calling of grep(1) (default)"),
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#endif
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{ OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage",
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PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback },
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OPT_END()
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};
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memset(&opt, 0, sizeof(opt));
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opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
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@ -603,223 +763,17 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
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* unrecognized non option is the beginning of the refs list
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* that continues up to the -- (if exists), and then paths.
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*/
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argc = parse_options(argc, argv, options, grep_usage,
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PARSE_OPT_KEEP_DASHDASH |
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PARSE_OPT_STOP_AT_NON_OPTION |
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PARSE_OPT_NO_INTERNAL_HELP);
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while (1 < argc) {
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const char *arg = argv[1];
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argc--; argv++;
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if (!strcmp("--cached", arg)) {
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cached = 1;
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continue;
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}
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if (!strcmp("--no-ext-grep", arg)) {
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external_grep_allowed = 0;
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continue;
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}
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if (!strcmp("-a", arg) ||
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!strcmp("--text", arg)) {
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opt.binary = GREP_BINARY_TEXT;
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continue;
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}
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if (!strcmp("-i", arg) ||
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!strcmp("--ignore-case", arg)) {
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opt.regflags |= REG_ICASE;
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continue;
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}
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if (!strcmp("-I", arg)) {
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opt.binary = GREP_BINARY_NOMATCH;
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continue;
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}
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if (!strcmp("-v", arg) ||
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!strcmp("--invert-match", arg)) {
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opt.invert = 1;
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continue;
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}
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if (!strcmp("-E", arg) ||
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!strcmp("--extended-regexp", arg)) {
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opt.regflags |= REG_EXTENDED;
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continue;
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}
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if (!strcmp("-F", arg) ||
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!strcmp("--fixed-strings", arg)) {
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opt.fixed = 1;
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continue;
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}
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if (!strcmp("-G", arg) ||
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!strcmp("--basic-regexp", arg)) {
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opt.regflags &= ~REG_EXTENDED;
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continue;
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}
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if (!strcmp("-n", arg)) {
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opt.linenum = 1;
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continue;
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}
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if (!strcmp("-h", arg)) {
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opt.pathname = 0;
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continue;
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}
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if (!strcmp("-H", arg)) {
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opt.pathname = 1;
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continue;
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}
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if (!strcmp("-l", arg) ||
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!strcmp("--name-only", arg) ||
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!strcmp("--files-with-matches", arg)) {
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opt.name_only = 1;
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continue;
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}
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if (!strcmp("-L", arg) ||
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!strcmp("--files-without-match", arg)) {
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opt.unmatch_name_only = 1;
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continue;
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}
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if (!strcmp("-z", arg) ||
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!strcmp("--null", arg)) {
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opt.null_following_name = 1;
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continue;
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}
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if (!strcmp("-c", arg) ||
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!strcmp("--count", arg)) {
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opt.count = 1;
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continue;
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}
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if (!strcmp("-w", arg) ||
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!strcmp("--word-regexp", arg)) {
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opt.word_regexp = 1;
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continue;
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}
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if (!prefixcmp(arg, "-A") ||
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!prefixcmp(arg, "-B") ||
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!prefixcmp(arg, "-C") ||
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(arg[0] == '-' && '1' <= arg[1] && arg[1] <= '9')) {
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unsigned num;
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const char *scan;
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switch (arg[1]) {
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case 'A': case 'B': case 'C':
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if (!arg[2]) {
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if (argc <= 1)
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die(emsg_missing_context_len);
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scan = *++argv;
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argc--;
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}
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else
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scan = arg + 2;
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break;
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default:
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scan = arg + 1;
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break;
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}
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if (strtoul_ui(scan, 10, &num))
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die(emsg_invalid_context_len, scan);
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switch (arg[1]) {
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case 'A':
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opt.post_context = num;
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break;
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default:
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case 'C':
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opt.post_context = num;
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case 'B':
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opt.pre_context = num;
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break;
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}
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continue;
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}
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if (!strcmp("-f", arg)) {
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FILE *patterns;
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int lno = 0;
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char buf[1024];
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if (argc <= 1)
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die(emsg_missing_argument, arg);
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patterns = fopen(argv[1], "r");
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if (!patterns)
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die("'%s': %s", argv[1], strerror(errno));
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while (fgets(buf, sizeof(buf), patterns)) {
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int len = strlen(buf);
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if (len && buf[len-1] == '\n')
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buf[len-1] = 0;
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/* ignore empty line like grep does */
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if (!buf[0])
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continue;
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append_grep_pattern(&opt, xstrdup(buf),
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argv[1], ++lno,
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GREP_PATTERN);
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}
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fclose(patterns);
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argv++;
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argc--;
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continue;
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}
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if (!strcmp("--not", arg)) {
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append_grep_pattern(&opt, arg, "command line", 0,
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GREP_NOT);
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continue;
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}
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if (!strcmp("--and", arg)) {
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append_grep_pattern(&opt, arg, "command line", 0,
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GREP_AND);
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continue;
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}
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if (!strcmp("--or", arg))
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continue; /* no-op */
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if (!strcmp("(", arg)) {
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append_grep_pattern(&opt, arg, "command line", 0,
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GREP_OPEN_PAREN);
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continue;
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}
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if (!strcmp(")", arg)) {
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append_grep_pattern(&opt, arg, "command line", 0,
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GREP_CLOSE_PAREN);
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continue;
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}
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if (!strcmp("--all-match", arg)) {
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opt.all_match = 1;
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continue;
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}
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if (!strcmp("-e", arg)) {
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if (1 < argc) {
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append_grep_pattern(&opt, argv[1],
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"-e option", 0,
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GREP_PATTERN);
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argv++;
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argc--;
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continue;
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}
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die(emsg_missing_argument, arg);
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}
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if (!strcmp("--full-name", arg)) {
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opt.relative = 0;
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continue;
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}
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if (!strcmp("--color", arg)) {
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opt.color = 1;
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continue;
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}
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if (!strcmp("--no-color", arg)) {
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opt.color = 0;
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continue;
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}
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if (!strcmp("--", arg)) {
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/* later processing wants to have this at argv[1] */
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argv--;
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argc++;
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break;
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}
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if (*arg == '-')
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usage(builtin_grep_usage);
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/* First unrecognized non-option token */
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if (!opt.pattern_list) {
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append_grep_pattern(&opt, arg, "command line", 0,
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GREP_PATTERN);
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break;
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}
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else {
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/* We are looking at the first path or rev;
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* it is found at argv[1] after leaving the
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* loop.
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*/
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argc++; argv--;
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break;
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}
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/* First unrecognized non-option token */
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if (argc > 0 && !opt.pattern_list) {
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append_grep_pattern(&opt, argv[0], "command line", 0,
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GREP_PATTERN);
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argv++;
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argc--;
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}
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if (opt.color && !opt.color_external)
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@ -831,7 +785,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
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compile_grep_patterns(&opt);
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/* Check revs and then paths */
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for (i = 1; i < argc; i++) {
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for (i = 0; i < argc; i++) {
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const char *arg = argv[i];
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unsigned char sha1[20];
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/* Is it a rev? */
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28
grep.h
28
grep.h
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@ -61,23 +61,23 @@ struct grep_opt {
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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;
|
||||
|
|
|
|||
Loading…
Reference in New Issue