From 7687a0541e0a6d86c5005d84057321368181c1b5 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Tue, 9 Oct 2012 16:17:50 -0700 Subject: grep: move the configuration parsing logic to grep.[ch] The configuration handling is a library-ish part of this program, that is not specific to "git grep" command. It should be reusable by "log" and others. Signed-off-by: Junio C Hamano --- grep.c | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) (limited to 'grep.c') diff --git a/grep.c b/grep.c index edc7776677..621e6ec22e 100644 --- a/grep.c +++ b/grep.c @@ -6,6 +6,136 @@ static int grep_source_load(struct grep_source *gs); static int grep_source_is_binary(struct grep_source *gs); +static struct grep_opt grep_defaults; + +/* + * Initialize the grep_defaults template with hardcoded defaults. + * We could let the compiler do this, but without C99 initializers + * the code gets unwieldy and unreadable, so... + */ +void init_grep_defaults(void) +{ + struct grep_opt *opt = &grep_defaults; + + memset(opt, 0, sizeof(*opt)); + opt->relative = 1; + opt->pathname = 1; + opt->regflags = REG_NEWLINE; + opt->max_depth = -1; + opt->pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED; + opt->extended_regexp_option = 0; + strcpy(opt->color_context, ""); + strcpy(opt->color_filename, ""); + strcpy(opt->color_function, ""); + strcpy(opt->color_lineno, ""); + strcpy(opt->color_match, GIT_COLOR_BOLD_RED); + strcpy(opt->color_selected, ""); + strcpy(opt->color_sep, GIT_COLOR_CYAN); + opt->color = -1; +} + +static int parse_pattern_type_arg(const char *opt, const char *arg) +{ + if (!strcmp(arg, "default")) + return GREP_PATTERN_TYPE_UNSPECIFIED; + else if (!strcmp(arg, "basic")) + return GREP_PATTERN_TYPE_BRE; + else if (!strcmp(arg, "extended")) + return GREP_PATTERN_TYPE_ERE; + else if (!strcmp(arg, "fixed")) + return GREP_PATTERN_TYPE_FIXED; + else if (!strcmp(arg, "perl")) + return GREP_PATTERN_TYPE_PCRE; + die("bad %s argument: %s", opt, arg); +} + +/* + * Read the configuration file once and store it in + * the grep_defaults template. + */ +int grep_config(const char *var, const char *value, void *cb) +{ + struct grep_opt *opt = &grep_defaults; + char *color = NULL; + + if (userdiff_config(var, value) < 0) + return -1; + + if (!strcmp(var, "grep.extendedregexp")) { + if (git_config_bool(var, value)) + opt->extended_regexp_option = 1; + else + opt->extended_regexp_option = 0; + return 0; + } + + if (!strcmp(var, "grep.patterntype")) { + opt->pattern_type_option = parse_pattern_type_arg(var, value); + return 0; + } + + if (!strcmp(var, "grep.linenumber")) { + opt->linenum = git_config_bool(var, value); + return 0; + } + + if (!strcmp(var, "color.grep")) + opt->color = git_config_colorbool(var, value); + else if (!strcmp(var, "color.grep.context")) + color = opt->color_context; + else if (!strcmp(var, "color.grep.filename")) + color = opt->color_filename; + else if (!strcmp(var, "color.grep.function")) + color = opt->color_function; + else if (!strcmp(var, "color.grep.linenumber")) + color = opt->color_lineno; + else if (!strcmp(var, "color.grep.match")) + color = opt->color_match; + else if (!strcmp(var, "color.grep.selected")) + color = opt->color_selected; + else if (!strcmp(var, "color.grep.separator")) + color = opt->color_sep; + + if (color) { + if (!value) + return config_error_nonbool(var); + color_parse(value, var, color); + } + return 0; +} + +/* + * Initialize one instance of grep_opt and copy the + * default values from the template we read the configuration + * information in an earlier call to git_config(grep_config). + */ +void grep_init(struct grep_opt *opt, const char *prefix) +{ + struct grep_opt *def = &grep_defaults; + + memset(opt, 0, sizeof(*opt)); + opt->prefix = prefix; + opt->prefix_length = (prefix && *prefix) ? strlen(prefix) : 0; + opt->pattern_tail = &opt->pattern_list; + opt->header_tail = &opt->header_list; + + opt->color = def->color; + opt->extended_regexp_option = def->extended_regexp_option; + opt->pattern_type_option = def->pattern_type_option; + opt->linenum = def->linenum; + opt->max_depth = def->max_depth; + opt->pathname = def->pathname; + opt->regflags = def->regflags; + opt->relative = def->relative; + + strcpy(opt->color_context, def->color_context); + strcpy(opt->color_filename, def->color_filename); + strcpy(opt->color_function, def->color_function); + strcpy(opt->color_lineno, def->color_lineno); + strcpy(opt->color_match, def->color_match); + strcpy(opt->color_selected, def->color_selected); + strcpy(opt->color_sep, def->color_sep); +} static struct grep_pat *create_grep_pat(const char *pat, size_t patlen, const char *origin, int no, -- cgit v1.3 From c5c31d3381d11903c01d51aff4437fe9f76d0268 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 3 Oct 2012 14:47:48 -0700 Subject: grep: move pattern-type bits support to top-level grep.[ch] Switching between -E/-G/-P/-F correctly needs a lot more than just flipping opt->regflags bit these days, and we have a nice helper function buried in builtin/grep.c for the sole use of "git grep". Extract it so that "log --grep" family can also use it. Signed-off-by: Junio C Hamano --- builtin/grep.c | 40 +--------------------------------------- grep.c | 42 ++++++++++++++++++++++++++++++++++++++++++ grep.h | 2 ++ 3 files changed, 45 insertions(+), 39 deletions(-) (limited to 'grep.c') diff --git a/builtin/grep.c b/builtin/grep.c index b63a9f8368..c296e6f99e 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -261,38 +261,6 @@ static int wait_all(void) } #endif -static void grep_pattern_type_options(const int pattern_type, struct grep_opt *opt) -{ - switch (pattern_type) { - case GREP_PATTERN_TYPE_UNSPECIFIED: - /* fall through */ - - case GREP_PATTERN_TYPE_BRE: - opt->fixed = 0; - opt->pcre = 0; - opt->regflags &= ~REG_EXTENDED; - break; - - case GREP_PATTERN_TYPE_ERE: - opt->fixed = 0; - opt->pcre = 0; - opt->regflags |= REG_EXTENDED; - break; - - case GREP_PATTERN_TYPE_FIXED: - opt->fixed = 1; - opt->pcre = 0; - opt->regflags &= ~REG_EXTENDED; - break; - - case GREP_PATTERN_TYPE_PCRE: - opt->fixed = 0; - opt->pcre = 1; - opt->regflags &= ~REG_EXTENDED; - break; - } -} - static int grep_cmd_config(const char *var, const char *value, void *cb) { int st = grep_config(var, value, cb); @@ -798,13 +766,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_STOP_AT_NON_OPTION | PARSE_OPT_NO_INTERNAL_HELP); - - if (pattern_type_arg != GREP_PATTERN_TYPE_UNSPECIFIED) - grep_pattern_type_options(pattern_type_arg, &opt); - else if (opt.pattern_type_option != GREP_PATTERN_TYPE_UNSPECIFIED) - grep_pattern_type_options(opt.pattern_type_option, &opt); - else if (opt.extended_regexp_option) - grep_pattern_type_options(GREP_PATTERN_TYPE_ERE, &opt); + grep_commit_pattern_type(pattern_type_arg, &opt); if (use_index && !startup_info->have_repository) /* die the same way as if we did it at the beginning */ diff --git a/grep.c b/grep.c index 621e6ec22e..279a55933c 100644 --- a/grep.c +++ b/grep.c @@ -137,6 +137,48 @@ void grep_init(struct grep_opt *opt, const char *prefix) strcpy(opt->color_sep, def->color_sep); } +void grep_commit_pattern_type(enum grep_pattern_type pattern_type, struct grep_opt *opt) +{ + if (pattern_type != GREP_PATTERN_TYPE_UNSPECIFIED) + grep_set_pattern_type_option(pattern_type, opt); + else if (opt->pattern_type_option != GREP_PATTERN_TYPE_UNSPECIFIED) + grep_set_pattern_type_option(opt->pattern_type_option, opt); + else if (opt->extended_regexp_option) + grep_set_pattern_type_option(GREP_PATTERN_TYPE_ERE, opt); +} + +void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, struct grep_opt *opt) +{ + switch (pattern_type) { + case GREP_PATTERN_TYPE_UNSPECIFIED: + /* fall through */ + + case GREP_PATTERN_TYPE_BRE: + opt->fixed = 0; + opt->pcre = 0; + opt->regflags &= ~REG_EXTENDED; + break; + + case GREP_PATTERN_TYPE_ERE: + opt->fixed = 0; + opt->pcre = 0; + opt->regflags |= REG_EXTENDED; + break; + + case GREP_PATTERN_TYPE_FIXED: + opt->fixed = 1; + opt->pcre = 0; + opt->regflags &= ~REG_EXTENDED; + break; + + case GREP_PATTERN_TYPE_PCRE: + opt->fixed = 0; + opt->pcre = 1; + opt->regflags &= ~REG_EXTENDED; + break; + } +} + static struct grep_pat *create_grep_pat(const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t, diff --git a/grep.h b/grep.h index 9aa1cc7e13..701c78459f 100644 --- a/grep.h +++ b/grep.h @@ -141,6 +141,8 @@ struct grep_opt { extern void init_grep_defaults(void); extern int grep_config(const char *var, const char *value, void *); extern void grep_init(struct grep_opt *, const char *prefix); +void grep_set_pattern_type_option(enum grep_pattern_type, struct grep_opt *opt); +void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt); extern void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t); extern void append_grep_pattern(struct grep_opt *opt, const char *pat, const char *origin, int no, enum grep_pat_token t); -- cgit v1.3 From 918d4e1c907983d26b0c4d82d7f7abff4dbec4e5 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Tue, 9 Oct 2012 16:40:03 -0700 Subject: revisions: initialize revs->grep_filter using grep_init() Instead of using the hand-rolled initialization sequence, use grep_init() to populate the necessary bits. This opens the door to allow the calling commands to optionally read grep.* configuration variables via git_config() if they want to. Signed-off-by: Junio C Hamano --- grep.c | 5 +++++ revision.c | 6 ++++-- 2 files changed, 9 insertions(+), 2 deletions(-) (limited to 'grep.c') diff --git a/grep.c b/grep.c index 279a55933c..a947a68a7f 100644 --- a/grep.c +++ b/grep.c @@ -16,6 +16,11 @@ static struct grep_opt grep_defaults; void init_grep_defaults(void) { struct grep_opt *opt = &grep_defaults; + static int run_once; + + if (run_once) + return; + run_once++; memset(opt, 0, sizeof(*opt)); opt->relative = 1; diff --git a/revision.c b/revision.c index a09e60bedb..a4a931426f 100644 --- a/revision.c +++ b/revision.c @@ -1048,9 +1048,9 @@ void init_revisions(struct rev_info *revs, const char *prefix) revs->commit_format = CMIT_FMT_DEFAULT; + init_grep_defaults(); + grep_init(&revs->grep_filter, prefix); revs->grep_filter.status_only = 1; - revs->grep_filter.pattern_tail = &(revs->grep_filter.pattern_list); - revs->grep_filter.header_tail = &(revs->grep_filter.header_list); revs->grep_filter.regflags = REG_NEWLINE; diff_setup(&revs->diffopt); @@ -1893,6 +1893,8 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s revs->diffopt.abbrev = revs->abbrev; diff_setup_done(&revs->diffopt); + grep_commit_pattern_type(GREP_PATTERN_TYPE_UNSPECIFIED, + &revs->grep_filter); compile_grep_patterns(&revs->grep_filter); if (revs->reverse && revs->reflog_info) -- cgit v1.3