git/builtin/for-each-ref.c
Junio C Hamano 39fe402d67 Merge branch 'tb/refs-exclusion-and-packed-refs'
Enumerating refs in the packed-refs file, while excluding refs that
match certain patterns, has been optimized.

* tb/refs-exclusion-and-packed-refs:
  ls-refs.c: avoid enumerating hidden refs where possible
  upload-pack.c: avoid enumerating hidden refs where possible
  builtin/receive-pack.c: avoid enumerating hidden references
  refs.h: implement `hidden_refs_to_excludes()`
  refs.h: let `for_each_namespaced_ref()` take excluded patterns
  revision.h: store hidden refs in a `strvec`
  refs/packed-backend.c: add trace2 counters for jump list
  refs/packed-backend.c: implement jump lists to avoid excluded pattern(s)
  refs/packed-backend.c: refactor `find_reference_location()`
  refs: plumb `exclude_patterns` argument throughout
  builtin/for-each-ref.c: add `--exclude` option
  ref-filter.c: parameterize match functions over patterns
  ref-filter: add `ref_filter_clear()`
  ref-filter: clear reachable list pointers after freeing
  ref-filter.h: provide `REF_FILTER_INIT`
  refs.c: rename `ref_filter`
2023-07-21 13:47:26 -07:00

128 lines
4.1 KiB
C

#include "builtin.h"
#include "config.h"
#include "gettext.h"
#include "refs.h"
#include "object.h"
#include "parse-options.h"
#include "ref-filter.h"
#include "strbuf.h"
#include "strvec.h"
#include "commit-reach.h"
static char const * const for_each_ref_usage[] = {
N_("git for-each-ref [<options>] [<pattern>]"),
N_("git for-each-ref [--points-at <object>]"),
N_("git for-each-ref [--merged [<commit>]] [--no-merged [<commit>]]"),
N_("git for-each-ref [--contains [<commit>]] [--no-contains [<commit>]]"),
NULL
};
int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
{
int i;
struct ref_sorting *sorting;
struct string_list sorting_options = STRING_LIST_INIT_DUP;
int maxcount = 0, icase = 0, omit_empty = 0;
struct ref_array array;
struct ref_filter filter = REF_FILTER_INIT;
struct ref_format format = REF_FORMAT_INIT;
struct strbuf output = STRBUF_INIT;
struct strbuf err = STRBUF_INIT;
int from_stdin = 0;
struct strvec vec = STRVEC_INIT;
struct option opts[] = {
OPT_BIT('s', "shell", &format.quote_style,
N_("quote placeholders suitably for shells"), QUOTE_SHELL),
OPT_BIT('p', "perl", &format.quote_style,
N_("quote placeholders suitably for perl"), QUOTE_PERL),
OPT_BIT(0 , "python", &format.quote_style,
N_("quote placeholders suitably for python"), QUOTE_PYTHON),
OPT_BIT(0 , "tcl", &format.quote_style,
N_("quote placeholders suitably for Tcl"), QUOTE_TCL),
OPT_BOOL(0, "omit-empty", &omit_empty,
N_("do not output a newline after empty formatted refs")),
OPT_GROUP(""),
OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")),
OPT_STRING( 0 , "format", &format.format, N_("format"), N_("format to use for the output")),
OPT__COLOR(&format.use_color, N_("respect format colors")),
OPT_REF_FILTER_EXCLUDE(&filter),
OPT_REF_SORT(&sorting_options),
OPT_CALLBACK(0, "points-at", &filter.points_at,
N_("object"), N_("print only refs which points at the given object"),
parse_opt_object_name),
OPT_MERGED(&filter, N_("print only refs that are merged")),
OPT_NO_MERGED(&filter, N_("print only refs that are not merged")),
OPT_CONTAINS(&filter.with_commit, N_("print only refs which contain the commit")),
OPT_NO_CONTAINS(&filter.no_commit, N_("print only refs which don't contain the commit")),
OPT_BOOL(0, "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
OPT_BOOL(0, "stdin", &from_stdin, N_("read reference patterns from stdin")),
OPT_END(),
};
memset(&array, 0, sizeof(array));
format.format = "%(objectname) %(objecttype)\t%(refname)";
git_config(git_default_config, NULL);
parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0);
if (maxcount < 0) {
error("invalid --count argument: `%d'", maxcount);
usage_with_options(for_each_ref_usage, opts);
}
if (HAS_MULTI_BITS(format.quote_style)) {
error("more than one quoting style?");
usage_with_options(for_each_ref_usage, opts);
}
if (verify_ref_format(&format))
usage_with_options(for_each_ref_usage, opts);
sorting = ref_sorting_options(&sorting_options);
ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
filter.ignore_case = icase;
if (from_stdin) {
struct strbuf line = STRBUF_INIT;
if (argv[0])
die(_("unknown arguments supplied with --stdin"));
while (strbuf_getline(&line, stdin) != EOF)
strvec_push(&vec, line.buf);
strbuf_release(&line);
/* vec.v is NULL-terminated, just like 'argv'. */
filter.name_patterns = vec.v;
} else {
filter.name_patterns = argv;
}
filter.match_as_path = 1;
filter_refs(&array, &filter, FILTER_REFS_ALL);
filter_ahead_behind(the_repository, &format, &array);
ref_array_sort(sorting, &array);
if (!maxcount || array.nr < maxcount)
maxcount = array.nr;
for (i = 0; i < maxcount; i++) {
strbuf_reset(&err);
strbuf_reset(&output);
if (format_ref_array_item(array.items[i], &format, &output, &err))
die("%s", err.buf);
fwrite(output.buf, 1, output.len, stdout);
if (output.len || !omit_empty)
putchar('\n');
}
strbuf_release(&err);
strbuf_release(&output);
ref_array_clear(&array);
ref_filter_clear(&filter);
ref_sorting_release(sorting);
strvec_clear(&vec);
return 0;
}