The grep_init() function used the odd pattern of initializing the
passed-in "struct grep_opt" with a statically defined "grep_defaults"
struct, which would be modified in-place when we invoked
grep_config().
So we effectively (b) initialized config, (a) then defaults, (c)
followed by user options. Usually those are ordered as "a", "b" and
"c" instead.
As the comments being removed here show the previous behavior needed
to be carefully explained as we'd potentially share the populated
configuration among different instances of grep_init(). In practice we
didn't do that, but now that it can't be a concern anymore let's
remove those comments.
See 6ba9bb76e02 (grep: copy struct in one fell swoop, 2020-11-29) and
7687a0541e0 (grep: move the configuration parsing logic to grep.[ch],
2012-10-09) for the commits that added the comments.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
builtin/grep.c | 4 ++--
builtin/log.c | 13 +++++++++++--
grep.c | 39 +++------------------------------------
grep.h | 21 +++++++++++++++++++++
4 files changed, 37 insertions(+), 40 deletions(-)
diff --git a/builtin/grep.c b/builtin/grep.c
index 960c7aac123..7f95f44e948 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -288,7 +288,7 @@ static int wait_all(void)
static int grep_cmd_config(const char *var, const char *value, void *cb)
{
int st = grep_config(var, value, cb);
- if (git_color_default_config(var, value, cb) < 0)
+ if (git_color_default_config(var, value, NULL) < 0)
st = -1;
if (!strcmp(var, "grep.threads")) {
@@ -969,8 +969,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
OPT_END()
};
- git_config(grep_cmd_config, NULL);
grep_init(&opt, the_repository);
+ git_config(grep_cmd_config, &opt);
opt.caller_priv = &opt_cmd;
/*
diff --git a/builtin/log.c b/builtin/log.c
index f75d87e8d7f..bfddacdfa6c 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -505,8 +505,6 @@ static int git_log_config(const char *var, const char *value, void *cb)
return 0;
}
- if (grep_config(var, value, cb) < 0)
- return -1;
if (git_gpg_config(var, value, cb) < 0)
return -1;
return git_diff_ui_config(var, value, cb);
@@ -521,6 +519,8 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix)
git_config(git_log_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
+ git_config(grep_config, &rev.grep_filter);
+
rev.diff = 1;
rev.simplify_history = 0;
memset(&opt, 0, sizeof(opt));
@@ -635,6 +635,8 @@ int cmd_show(int argc, const char **argv, const char *prefix)
memset(&match_all, 0, sizeof(match_all));
repo_init_revisions(the_repository, &rev, prefix);
+ git_config(grep_config, &rev.grep_filter);
+
rev.diff = 1;
rev.always_show_header = 1;
rev.no_walk = 1;
@@ -718,6 +720,8 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix)
repo_init_revisions(the_repository, &rev, prefix);
init_reflog_walk(&rev.reflog_info);
+ git_config(grep_config, &rev.grep_filter);
+
rev.verbose_header = 1;
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
@@ -751,6 +755,8 @@ int cmd_log(int argc, const char **argv, const char *prefix)
git_config(git_log_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
+ git_config(grep_config, &rev.grep_filter);
+
rev.always_show_header = 1;
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
@@ -1833,10 +1839,13 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
extra_hdr.strdup_strings = 1;
extra_to.strdup_strings = 1;
extra_cc.strdup_strings = 1;
+
init_log_defaults();
init_display_notes(¬es_opt);
git_config(git_format_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
+ git_config(grep_config, &rev.grep_filter);
+
rev.show_notes = show_notes;
memcpy(&rev.notes_opt, ¬es_opt, sizeof(notes_opt));
rev.commit_format = CMIT_FMT_EMAIL;
diff --git a/grep.c b/grep.c
index c9065254aeb..fb3f63c63ef 100644
--- a/grep.c
+++ b/grep.c
@@ -19,27 +19,6 @@ static void std_output(struct grep_opt *opt, const void *buf, size_t size)
fwrite(buf, size, 1, stdout);
}
-static struct grep_opt grep_defaults = {
- .relative = 1,
- .pathname = 1,
- .max_depth = -1,
- .pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED,
- .colors = {
- [GREP_COLOR_CONTEXT] = "",
- [GREP_COLOR_FILENAME] = "",
- [GREP_COLOR_FUNCTION] = "",
- [GREP_COLOR_LINENO] = "",
- [GREP_COLOR_COLUMNNO] = "",
- [GREP_COLOR_MATCH_CONTEXT] = GIT_COLOR_BOLD_RED,
- [GREP_COLOR_MATCH_SELECTED] = GIT_COLOR_BOLD_RED,
- [GREP_COLOR_SELECTED] = "",
- [GREP_COLOR_SEP] = GIT_COLOR_CYAN,
- },
- .only_matching = 0,
- .color = -1,
- .output = std_output,
-};
-
static const char *color_grep_slots[] = {
[GREP_COLOR_CONTEXT] = "context",
[GREP_COLOR_FILENAME] = "filename",
@@ -75,20 +54,12 @@ define_list_config_array_extra(color_grep_slots, {"match"});
*/
int grep_config(const char *var, const char *value, void *cb)
{
- struct grep_opt *opt = &grep_defaults;
+ struct grep_opt *opt = cb;
const char *slot;
if (userdiff_config(var, value) < 0)
return -1;
- /*
- * The instance of grep_opt that we set up here is copied by
- * grep_init() to be used by each individual invocation.
- * When populating a new field of this structure here, be
- * sure to think about ownership -- e.g., you might need to
- * override the shallow copy in grep_init() with a deep copy.
- */
-
if (!strcmp(var, "grep.extendedregexp")) {
opt->extended_regexp_option = git_config_bool(var, value);
return 0;
@@ -134,14 +105,10 @@ int grep_config(const char *var, const char *value, void *cb)
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, struct repository *repo)
{
- *opt = grep_defaults;
+ struct grep_opt blank = GREP_OPT_INIT;
+ memcpy(opt, &blank, sizeof(*opt));
opt->repo = repo;
opt->pattern_tail = &opt->pattern_list;
diff --git a/grep.h b/grep.h
index 6b923d8599c..30a7dfd3294 100644
--- a/grep.h
+++ b/grep.h
@@ -178,6 +178,27 @@ struct grep_opt {
void *output_priv;
};
+#define GREP_OPT_INIT { \
+ .relative = 1, \
+ .pathname = 1, \
+ .max_depth = -1, \
+ .pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED, \
+ .colors = { \
+ [GREP_COLOR_CONTEXT] = "", \
+ [GREP_COLOR_FILENAME] = "", \
+ [GREP_COLOR_FUNCTION] = "", \
+ [GREP_COLOR_LINENO] = "", \
+ [GREP_COLOR_COLUMNNO] = "", \
+ [GREP_COLOR_MATCH_CONTEXT] = GIT_COLOR_BOLD_RED, \
+ [GREP_COLOR_MATCH_SELECTED] = GIT_COLOR_BOLD_RED, \
+ [GREP_COLOR_SELECTED] = "", \
+ [GREP_COLOR_SEP] = GIT_COLOR_CYAN, \
+ }, \
+ .only_matching = 0, \
+ .color = -1, \
+ .output = std_output, \
+}
+
int grep_config(const char *var, const char *value, void *);
void grep_init(struct grep_opt *, struct repository *repo);
void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
--
2.34.0.rc1.741.gab7bfd97031
