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1644c73c6d
The sequencer just learned new commands intended to recreate branch structure (similar in spirit to --preserve-merges, but with a substantially less-broken design). Let's allow the rebase--helper to generate todo lists making use of these commands, triggered by the new --rebase-merges option. For a commit topology like this (where the HEAD points to C): - A - B - C \ / D the generated todo list would look like this: # branch D pick 0123 A label branch-point pick 1234 D label D reset branch-point pick 2345 B merge -C 3456 D # C To keep things simple, we first only implement support for merge commits with exactly two parents, leaving support for octopus merges to a later patch series. All merge-rebasing todo lists start with a hard-coded `label onto` line. This makes it convenient to refer later on to the revision onto which everything is rebased, e.g. as starting point for branches other than the very first one. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
82 lines
3.0 KiB
C
82 lines
3.0 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 "sequencer.h"
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static const char * const builtin_rebase_helper_usage[] = {
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N_("git rebase--helper [<options>]"),
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NULL
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};
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int cmd_rebase__helper(int argc, const char **argv, const char *prefix)
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{
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struct replay_opts opts = REPLAY_OPTS_INIT;
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unsigned flags = 0, keep_empty = 0, rebase_merges = 0;
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int abbreviate_commands = 0;
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enum {
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CONTINUE = 1, ABORT, MAKE_SCRIPT, SHORTEN_OIDS, EXPAND_OIDS,
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CHECK_TODO_LIST, SKIP_UNNECESSARY_PICKS, REARRANGE_SQUASH,
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ADD_EXEC
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} command = 0;
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struct option options[] = {
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OPT_BOOL(0, "ff", &opts.allow_ff, N_("allow fast-forward")),
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OPT_BOOL(0, "keep-empty", &keep_empty, N_("keep empty commits")),
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OPT_BOOL(0, "allow-empty-message", &opts.allow_empty_message,
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N_("allow commits with empty messages")),
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OPT_BOOL(0, "rebase-merges", &rebase_merges, N_("rebase merge commits")),
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OPT_CMDMODE(0, "continue", &command, N_("continue rebase"),
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CONTINUE),
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OPT_CMDMODE(0, "abort", &command, N_("abort rebase"),
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ABORT),
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OPT_CMDMODE(0, "make-script", &command,
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N_("make rebase script"), MAKE_SCRIPT),
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OPT_CMDMODE(0, "shorten-ids", &command,
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N_("shorten commit ids in the todo list"), SHORTEN_OIDS),
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OPT_CMDMODE(0, "expand-ids", &command,
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N_("expand commit ids in the todo list"), EXPAND_OIDS),
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OPT_CMDMODE(0, "check-todo-list", &command,
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N_("check the todo list"), CHECK_TODO_LIST),
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OPT_CMDMODE(0, "skip-unnecessary-picks", &command,
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N_("skip unnecessary picks"), SKIP_UNNECESSARY_PICKS),
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OPT_CMDMODE(0, "rearrange-squash", &command,
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N_("rearrange fixup/squash lines"), REARRANGE_SQUASH),
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OPT_CMDMODE(0, "add-exec-commands", &command,
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N_("insert exec commands in todo list"), ADD_EXEC),
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OPT_END()
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};
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sequencer_init_config(&opts);
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git_config_get_bool("rebase.abbreviatecommands", &abbreviate_commands);
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opts.action = REPLAY_INTERACTIVE_REBASE;
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opts.allow_ff = 1;
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opts.allow_empty = 1;
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argc = parse_options(argc, argv, NULL, options,
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builtin_rebase_helper_usage, PARSE_OPT_KEEP_ARGV0);
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flags |= keep_empty ? TODO_LIST_KEEP_EMPTY : 0;
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flags |= abbreviate_commands ? TODO_LIST_ABBREVIATE_CMDS : 0;
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flags |= rebase_merges ? TODO_LIST_REBASE_MERGES : 0;
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flags |= command == SHORTEN_OIDS ? TODO_LIST_SHORTEN_IDS : 0;
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if (command == CONTINUE && argc == 1)
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return !!sequencer_continue(&opts);
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if (command == ABORT && argc == 1)
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return !!sequencer_remove_state(&opts);
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if (command == MAKE_SCRIPT && argc > 1)
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return !!sequencer_make_script(stdout, argc, argv, flags);
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if ((command == SHORTEN_OIDS || command == EXPAND_OIDS) && argc == 1)
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return !!transform_todos(flags);
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if (command == CHECK_TODO_LIST && argc == 1)
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return !!check_todo_list();
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if (command == SKIP_UNNECESSARY_PICKS && argc == 1)
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return !!skip_unnecessary_picks();
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if (command == REARRANGE_SQUASH && argc == 1)
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return !!rearrange_squash();
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if (command == ADD_EXEC && argc == 2)
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return !!sequencer_add_exec_commands(argv[1]);
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usage_with_options(builtin_rebase_helper_usage, options);
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}
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