f66d1423f5
Using the show_usage_and_exit_if_asked() helper we introduced earlier, fix callers of usage() that want to show the help text when explicitly asked by the end-user. The help text now goes to the standard output stream for them. These are the bog standard "if we got only '-h', then that is a request for help" callers. Their if (argc == 2 && !strcmp(argv[1], "-h")) usage(message); are simply replaced with show_usage_and_exit_if_asked(argc, argv, message); With this, the built-ins tested by t0012 all send their help text to their standard output stream, so the check in t0012 that was half tightened earlier is now fully tightened to insist on standard error stream being empty. Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
132 lines
2.9 KiB
C
132 lines
2.9 KiB
C
#define USE_THE_REPOSITORY_VARIABLE
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#define DISABLE_SIGN_COMPARE_WARNINGS
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#include "builtin.h"
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#include "hex.h"
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#include "read-cache-ll.h"
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#include "run-command.h"
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#include "sparse-index.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_repository->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_repository->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_repository->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_repository->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_repository->index);
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for (i = 0; i < the_repository->index->cache_nr; i++) {
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const struct cache_entry *ce = the_repository->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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static const char usage_string[] =
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"git merge-index [-o] [-q] <merge-program> (-a | [--] [<filename>...])";
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int cmd_merge_index(int argc,
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const char **argv,
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const char *prefix UNUSED,
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struct repository *repo UNUSED)
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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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show_usage_if_asked(argc, argv, usage_string);
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if (argc < 3)
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usage(usage_string);
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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_repository->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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