@@ -26,6 +26,8 @@
#include "object-store.h"
#include "packfile.h"
+static const char *grep_prefix;
+
static char const * const grep_usage[] = {
N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"),
NULL
@@ -315,11 +317,11 @@ static void grep_source_name(struct grep_opt *opt, const char *filename,
strbuf_reset(out);
if (opt->null_following_name) {
- if (opt->relative && opt->prefix_length) {
+ if (opt->relative && grep_prefix) {
struct strbuf rel_buf = STRBUF_INIT;
const char *rel_name =
relative_path(filename + tree_name_len,
- opt->prefix, &rel_buf);
+ grep_prefix, &rel_buf);
if (tree_name_len)
strbuf_add(out, filename, tree_name_len);
@@ -332,8 +334,8 @@ static void grep_source_name(struct grep_opt *opt, const char *filename,
return;
}
- if (opt->relative && opt->prefix_length)
- quote_path(filename + tree_name_len, opt->prefix, out, 0);
+ if (opt->relative && grep_prefix)
+ quote_path(filename + tree_name_len, grep_prefix, out, 0);
else
quote_c_style(filename + tree_name_len, out, NULL, 0);
@@ -962,9 +964,10 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
PARSE_OPT_NOCOMPLETE),
OPT_END()
};
+ grep_prefix = prefix;
git_config(grep_cmd_config, NULL);
- grep_init(&opt, the_repository, prefix);
+ grep_init(&opt, the_repository);
/*
* If there is no -- then the paths must exist in the working
@@ -150,7 +150,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
git_config(git_default_config, NULL);
ls_tree_prefix = prefix;
- if (prefix && *prefix)
+ if (prefix)
chomp_prefix = strlen(prefix);
argc = parse_options(argc, argv, prefix, ls_tree_options,
@@ -436,6 +436,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
} else {
prefix = NULL;
}
+ assert(!prefix || *prefix);
precompose_argv_prefix(argc, argv, NULL);
if (use_pager == -1 && run_setup &&
!(p->option & DELAY_PAGER_CONFIG))
@@ -139,13 +139,11 @@ int grep_config(const char *var, const char *value, void *cb)
* 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, const char *prefix)
+void grep_init(struct grep_opt *opt, struct repository *repo)
{
*opt = grep_defaults;
opt->repo = repo;
- opt->prefix = prefix;
- opt->prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
opt->pattern_tail = &opt->pattern_list;
opt->header_tail = &opt->header_list;
}
@@ -134,8 +134,6 @@ struct grep_opt {
*/
struct repository *repo;
- const char *prefix;
- int prefix_length;
int linenum;
int columnnum;
int invert;
@@ -182,7 +180,7 @@ struct grep_opt {
};
int grep_config(const char *var, const char *value, void *);
-void grep_init(struct grep_opt *, struct repository *repo, const char *prefix);
+void grep_init(struct grep_opt *, struct repository *repo);
void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);
@@ -1838,7 +1838,7 @@ void repo_init_revisions(struct repository *r,
revs->commit_format = CMIT_FMT_DEFAULT;
revs->expand_tabs_in_log_default = 8;
- grep_init(&revs->grep_filter, revs->repo, prefix);
+ grep_init(&revs->grep_filter, revs->repo);
revs->grep_filter.status_only = 1;
repo_diff_setup(revs->repo, &revs->diffopt);
Change code in "builtin/grep.c" and "builtin/ls-tree.c" to trust the "prefix" passed from "run_builtin()". The "prefix" we get from setup.c is either going to be NULL or a string of length >0, never "". So we can drop the "prefix && *prefix" checks added for "builtin/grep.c" in 0d042fecf2f (git-grep: show pathnames relative to the current directory, 2006-08-11), and for "builtin/ls-tree.c" in a69dd585fca (ls-tree: chomp leading directories when run from a subdirectory, 2005-12-23). As seen in code in revision.c that was added in cd676a51367 (diff --relative: output paths as relative to the current subdirectory, 2008-02-12) we already have existing code that does away with this assertion. This makes it easier to reason about a subsequent change to the "prefix_length" code in grep.c in a subsequent commit, and since we're going to the trouble of doing that let's leave behind an assert() to promise this to any future callers. For "builtin/grep.c" it would be painful to pass the "prefix" down the callchain of: cmd_grep -> grep_tree -> grep_submodule -> grep_cache -> grep_oid -> grep_source_name So for the code that needs it in grep_source_name() let's add a "grep_prefix" variable similar to the existing "ls_tree_prefix". While at it let's move the code in cmd_ls_tree() around so that we assign to the "ls_tree_prefix" right after declaring the variables, and stop assigning to "prefix". We only subsequently used that variable later in the function after clobbering it. Let's just use our own "grep_prefix" instead. Let's also add an assert() in git.c, so that we'll make this promise about the "prefix" to any current and future callers, as well as to any readers of the code. Code history: * The strlen() in "grep.c" hasn't been used since 493b7a08d80 (grep: accept relative paths outside current working directory, 2009-09-05). When that code was added in 0d042fecf2f (git-grep: show pathnames relative to the current directory, 2006-08-11) we used the length. But since 493b7a08d80 we haven't used it for anything except a boolean check that we could have done on the "prefix" member itself. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> --- builtin/grep.c | 13 ++++++++----- builtin/ls-tree.c | 2 +- git.c | 1 + grep.c | 4 +--- grep.h | 4 +--- revision.c | 2 +- 6 files changed, 13 insertions(+), 13 deletions(-)