ac3f5a3468
Change the tag, branch & for-each-ref commands to have a --no-contains option in addition to their longstanding --contains options. This allows for finding the last-good rollout tag given a known-bad <commit>. Given a hypothetically bad commitcf5c7253e0, the git version to revert to can be found with this hacky two-liner: (git tag -l 'v[0-9]*'; git tag -l --containscf5c7253e0'v[0-9]*') | sort | uniq -c | grep -E '^ *1 ' | awk '{print $2}' | tail -n 10 With this new --no-contains option the same can be achieved with: git tag -l --no-containscf5c7253e0'v[0-9]*' | sort | tail -n 10 As the filtering machinery is shared between the tag, branch & for-each-ref commands, implement this for those commands too. A practical use for this with "branch" is e.g. finding branches which were branched off between v2.8.0 and v2.10.0: git branch --contains v2.8.0 --no-contains v2.10.0 The "describe" command also has a --contains option, but its semantics are unrelated to what tag/branch/for-each-ref use --contains for. A --no-contains option for "describe" wouldn't make any sense, other than being exactly equivalent to not supplying --contains at all, which would be confusing at best. Add a --without option to "tag" as an alias for --no-contains, for consistency with --with and --contains. The --with option is undocumented, and possibly the only user of it is Junio (<xmqqefy71iej.fsf@gitster.mtv.corp.google.com>). But it's trivial to support, so let's do that. The additions to the the test suite are inverse copies of the corresponding --contains tests. With this change --no-contains for tag, branch & for-each-ref is just as well tested as the existing --contains option. In addition to those tests, add a test for "tag" which asserts that --no-contains won't find tree/blob tags, which is slightly unintuitive, but consistent with how --contains works & is documented. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
#include "builtin.h"
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#include "cache.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 | --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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const char *format = "%(objectname) %(objecttype)\t%(refname)";
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struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
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int maxcount = 0, quote_style = 0, icase = 0;
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struct ref_array array;
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struct ref_filter filter;
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struct option opts[] = {
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OPT_BIT('s', "shell", "e_style,
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N_("quote placeholders suitably for shells"), QUOTE_SHELL),
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OPT_BIT('p', "perl", "e_style,
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N_("quote placeholders suitably for perl"), QUOTE_PERL),
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OPT_BIT(0 , "python", "e_style,
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N_("quote placeholders suitably for python"), QUOTE_PYTHON),
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OPT_BIT(0 , "tcl", "e_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, N_("format"), N_("format to use for the output")),
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OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"),
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N_("field name to sort on"), &parse_opt_ref_sorting),
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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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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(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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if (!sorting)
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sorting = ref_default_sorting();
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sorting->ignore_case = icase;
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filter.ignore_case = icase;
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/* for warn_ambiguous_refs */
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git_config(git_default_config, NULL);
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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 | FILTER_REFS_INCLUDE_BROKEN);
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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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show_ref_array_item(array.items[i], format, quote_style);
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ref_array_clear(&array);
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return 0;
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}
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