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cff9711616
The multi-pack-index tracks objects in a collection of pack-files. Only one copy of each object is indexed, using the modified time of the pack-files to determine tie-breakers. It is possible to have a pack-file with no referenced objects because all objects have a duplicate in a newer pack-file. Introduce a new 'expire' subcommand to the multi-pack-index builtin. This subcommand will delete these unused pack-files and rewrite the multi-pack-index to no longer refer to those files. More details about the specifics will follow as the method is implemented. Add a test that verifies the 'expire' subcommand is correctly wired, but will still be valid when the verb is implemented. Specifically, create a set of packs that should all have referenced objects and should not be removed during an 'expire' operation. The packs are created carefully to ensure they have a specific order when sorted by size. This will be important in a later test. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "config.h"
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#include "parse-options.h"
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#include "midx.h"
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#include "trace2.h"
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static char const * const builtin_multi_pack_index_usage[] = {
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N_("git multi-pack-index [--object-dir=<dir>] (write|verify|expire)"),
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NULL
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};
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static struct opts_multi_pack_index {
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const char *object_dir;
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} opts;
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int cmd_multi_pack_index(int argc, const char **argv,
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const char *prefix)
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{
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static struct option builtin_multi_pack_index_options[] = {
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OPT_FILENAME(0, "object-dir", &opts.object_dir,
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N_("object directory containing set of packfile and pack-index pairs")),
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OPT_END(),
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};
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git_config(git_default_config, NULL);
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argc = parse_options(argc, argv, prefix,
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builtin_multi_pack_index_options,
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builtin_multi_pack_index_usage, 0);
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if (!opts.object_dir)
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opts.object_dir = get_object_directory();
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if (argc == 0)
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usage_with_options(builtin_multi_pack_index_usage,
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builtin_multi_pack_index_options);
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if (argc > 1) {
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die(_("too many arguments"));
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return 1;
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}
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trace2_cmd_mode(argv[0]);
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if (!strcmp(argv[0], "write"))
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return write_midx_file(opts.object_dir);
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if (!strcmp(argv[0], "verify"))
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return verify_midx_file(the_repository, opts.object_dir);
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if (!strcmp(argv[0], "expire"))
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return expire_midx_packs(the_repository, opts.object_dir);
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die(_("unrecognized verb: %s"), argv[0]);
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}
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