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98e7ab6d42
The for-each-ref family of commands invoke parsers immediately when
it sees each --sort=<atom> option, and die before even seeing the
other options on the command line when the <atom> is unrecognised.
Instead, accumulate them in a string list, and have them parsed into
a ref_sorting structure after the command line parsing is done. As
a consequence, "git branch --sort=bogus -h" used to fail to give the
brief help, which arguably may have been a feature, now does so,
which is more consistent with how other options work.
The patch is smaller than the actual extent of the "damage" to the
codebase, thanks to the fact that the original code consistently
used OPT_REF_SORT() macro to handle command line options. We only
needed to replace the variable used for the list, and implementation
of the callback function used in the macro.
The old rule was for the users of the API to:
- Declare ref_sorting and ref_sorting_tail variables;
- OPT_REF_SORT() macro will instantiate ref_sorting instance (which
may barf and die) and append it to the tail;
- Append to the tail each ref_sorting read from the configuration
by parsing in the config callback (which may barf and die);
- See if ref_sorting is null and use ref_sorting_default() instead.
Now the rule is not all that different but is simpler:
- Declare ref_sorting_options string list.
- OPT_REF_SORT() macro will append it to the string list;
- Append to the string list the sort key read from the
configuration;
- call ref_sorting_options() to turn the string list to ref_sorting
structure (which also deals with the default value).
As side effects, this change also cleans up a few issues:
- 95be717c (parse_opt_ref_sorting: always use with NONEG flag,
2019-03-20) muses that "git for-each-ref --no-sort" should simply
clear the sort keys accumulated so far; it now does.
- The implementation detail of "struct ref_sorting" and the helper
function parse_ref_sorting() can now be private to the ref-filter
API implementation.
- If you set branch.sort to a bogus value, the any "git branch"
invocation, not only the listing mode, would abort with the
original code; now it doesn't
Signed-off-by: Junio C Hamano <gitster@pobox.com>
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "config.h"
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#include "refs.h"
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#include "object.h"
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#include "parse-options.h"
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#include "ref-filter.h"
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static char const * const for_each_ref_usage[] = {
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N_("git for-each-ref [<options>] [<pattern>]"),
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N_("git for-each-ref [--points-at <object>]"),
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N_("git for-each-ref [--merged [<commit>]] [--no-merged [<commit>]]"),
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N_("git for-each-ref [--contains [<commit>]] [--no-contains [<commit>]]"),
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NULL
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};
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int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
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{
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int i;
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struct ref_sorting *sorting;
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struct string_list sorting_options = STRING_LIST_INIT_DUP;
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int maxcount = 0, icase = 0;
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struct ref_array array;
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struct ref_filter filter;
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struct ref_format format = REF_FORMAT_INIT;
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struct strbuf output = STRBUF_INIT;
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struct strbuf err = STRBUF_INIT;
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struct option opts[] = {
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OPT_BIT('s', "shell", &format.quote_style,
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N_("quote placeholders suitably for shells"), QUOTE_SHELL),
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OPT_BIT('p', "perl", &format.quote_style,
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N_("quote placeholders suitably for perl"), QUOTE_PERL),
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OPT_BIT(0 , "python", &format.quote_style,
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N_("quote placeholders suitably for python"), QUOTE_PYTHON),
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OPT_BIT(0 , "tcl", &format.quote_style,
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N_("quote placeholders suitably for Tcl"), QUOTE_TCL),
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OPT_GROUP(""),
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OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")),
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OPT_STRING( 0 , "format", &format.format, N_("format"), N_("format to use for the output")),
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OPT__COLOR(&format.use_color, N_("respect format colors")),
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OPT_REF_SORT(&sorting_options),
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OPT_CALLBACK(0, "points-at", &filter.points_at,
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N_("object"), N_("print only refs which points at the given object"),
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parse_opt_object_name),
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OPT_MERGED(&filter, N_("print only refs that are merged")),
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OPT_NO_MERGED(&filter, N_("print only refs that are not merged")),
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OPT_CONTAINS(&filter.with_commit, N_("print only refs which contain the commit")),
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OPT_NO_CONTAINS(&filter.no_commit, N_("print only refs which don't contain the commit")),
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OPT_BOOL(0, "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
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OPT_END(),
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};
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memset(&array, 0, sizeof(array));
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memset(&filter, 0, sizeof(filter));
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format.format = "%(objectname) %(objecttype)\t%(refname)";
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git_config(git_default_config, NULL);
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parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0);
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if (maxcount < 0) {
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error("invalid --count argument: `%d'", maxcount);
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usage_with_options(for_each_ref_usage, opts);
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}
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if (HAS_MULTI_BITS(format.quote_style)) {
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error("more than one quoting style?");
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usage_with_options(for_each_ref_usage, opts);
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}
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if (verify_ref_format(&format))
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usage_with_options(for_each_ref_usage, opts);
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sorting = ref_sorting_options(&sorting_options);
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ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
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filter.ignore_case = icase;
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filter.name_patterns = argv;
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filter.match_as_path = 1;
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filter_refs(&array, &filter, FILTER_REFS_ALL);
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ref_array_sort(sorting, &array);
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if (!maxcount || array.nr < maxcount)
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maxcount = array.nr;
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for (i = 0; i < maxcount; i++) {
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strbuf_reset(&err);
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strbuf_reset(&output);
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if (format_ref_array_item(array.items[i], &format, &output, &err))
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die("%s", err.buf);
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fwrite(output.buf, 1, output.len, stdout);
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putchar('\n');
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}
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strbuf_release(&err);
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strbuf_release(&output);
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ref_array_clear(&array);
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free_commit_list(filter.with_commit);
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free_commit_list(filter.no_commit);
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ref_sorting_release(sorting);
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return 0;
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}
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