mirror of
https://github.com/git/git.git
synced 2024-11-23 18:05:29 +08:00
41771fa435
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
120 lines
2.6 KiB
C
120 lines
2.6 KiB
C
#define USE_THE_INDEX_VARIABLE
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#include "builtin.h"
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#include "hex.h"
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#include "run-command.h"
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static const char *pgm;
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static int one_shot, quiet;
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static int err;
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static int merge_entry(int pos, const char *path)
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{
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int found;
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const char *arguments[] = { pgm, "", "", "", path, "", "", "", NULL };
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char hexbuf[4][GIT_MAX_HEXSZ + 1];
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char ownbuf[4][60];
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struct child_process cmd = CHILD_PROCESS_INIT;
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if (pos >= the_index.cache_nr)
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die("git merge-index: %s not in the cache", path);
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found = 0;
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do {
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const struct cache_entry *ce = the_index.cache[pos];
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int stage = ce_stage(ce);
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if (strcmp(ce->name, path))
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break;
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found++;
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oid_to_hex_r(hexbuf[stage], &ce->oid);
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xsnprintf(ownbuf[stage], sizeof(ownbuf[stage]), "%o", ce->ce_mode);
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arguments[stage] = hexbuf[stage];
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arguments[stage + 4] = ownbuf[stage];
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} while (++pos < the_index.cache_nr);
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if (!found)
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die("git merge-index: %s not in the cache", path);
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strvec_pushv(&cmd.args, arguments);
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if (run_command(&cmd)) {
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if (one_shot)
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err++;
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else {
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if (!quiet)
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die("merge program failed");
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exit(1);
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}
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}
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return found;
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}
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static void merge_one_path(const char *path)
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{
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int pos = index_name_pos(&the_index, path, strlen(path));
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/*
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* If it already exists in the cache as stage0, it's
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* already merged and there is nothing to do.
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*/
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if (pos < 0)
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merge_entry(-pos-1, path);
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}
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static void merge_all(void)
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{
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int i;
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/* TODO: audit for interaction with sparse-index. */
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ensure_full_index(&the_index);
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for (i = 0; i < the_index.cache_nr; i++) {
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const struct cache_entry *ce = the_index.cache[i];
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if (!ce_stage(ce))
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continue;
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i += merge_entry(i, ce->name)-1;
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}
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}
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int cmd_merge_index(int argc, const char **argv, const char *prefix)
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{
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int i, force_file = 0;
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/* Without this we cannot rely on waitpid() to tell
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* what happened to our children.
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*/
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signal(SIGCHLD, SIG_DFL);
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if (argc < 3)
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usage("git merge-index [-o] [-q] <merge-program> (-a | [--] [<filename>...])");
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repo_read_index(the_repository);
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/* TODO: audit for interaction with sparse-index. */
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ensure_full_index(&the_index);
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i = 1;
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if (!strcmp(argv[i], "-o")) {
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one_shot = 1;
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i++;
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}
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if (!strcmp(argv[i], "-q")) {
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quiet = 1;
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i++;
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}
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pgm = argv[i++];
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for (; i < argc; i++) {
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const char *arg = argv[i];
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if (!force_file && *arg == '-') {
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if (!strcmp(arg, "--")) {
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force_file = 1;
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continue;
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}
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if (!strcmp(arg, "-a")) {
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merge_all();
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continue;
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}
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die("git merge-index: unknown option %s", arg);
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}
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merge_one_path(arg);
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}
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if (err && !quiet)
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die("merge program failed");
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return err;
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}
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