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commit-tree.c
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160 lines (133 loc) · 3.8 KB
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/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#define USE_THE_REPOSITORY_VARIABLE
#include "builtin.h"
#include "config.h"
#include "environment.h"
#include "gettext.h"
#include "hex.h"
#include "object-name.h"
#include "odb.h"
#include "commit.h"
#include "parse-options.h"
static const char * const commit_tree_usage[] = {
N_("git commit-tree <tree> [(-p <parent>)...]"),
N_("git commit-tree [(-p <parent>)...] [-S[<keyid>]] [(-m <message>)...]\n"
" [(-F <file>)...] <tree>"),
NULL
};
static const char *sign_commit;
static void new_parent(struct commit *parent, struct commit_list **parents_p)
{
struct object_id *oid = &parent->object.oid;
struct commit_list *parents;
for (parents = *parents_p; parents; parents = parents->next) {
if (parents->item == parent) {
error(_("duplicate parent %s ignored"), oid_to_hex(oid));
return;
}
parents_p = &parents->next;
}
commit_list_insert(parent, parents_p);
}
static int parse_parent_arg_callback(const struct option *opt,
const char *arg, int unset)
{
struct object_id oid;
struct commit_list **parents = opt->value;
BUG_ON_OPT_NEG_NOARG(unset, arg);
if (repo_get_oid_commit(the_repository, arg, &oid))
die(_("not a valid object name %s"), arg);
odb_assert_oid_type(the_repository->objects, &oid, OBJ_COMMIT);
new_parent(lookup_commit(the_repository, &oid), parents);
return 0;
}
static int parse_message_arg_callback(const struct option *opt,
const char *arg, int unset)
{
struct strbuf *buf = opt->value;
BUG_ON_OPT_NEG_NOARG(unset, arg);
if (buf->len)
strbuf_addch(buf, '\n');
strbuf_addstr(buf, arg);
strbuf_complete_line(buf);
return 0;
}
static int parse_file_arg_callback(const struct option *opt,
const char *arg, int unset)
{
int fd;
struct strbuf *buf = opt->value;
BUG_ON_OPT_NEG_NOARG(unset, arg);
if (buf->len)
strbuf_addch(buf, '\n');
if (!strcmp(arg, "-"))
fd = 0;
else {
fd = xopen(arg, O_RDONLY);
}
if (strbuf_read(buf, fd, 0) < 0)
die_errno(_("git commit-tree: failed to read '%s'"), arg);
if (fd && close(fd))
die_errno(_("git commit-tree: failed to close '%s'"), arg);
return 0;
}
int cmd_commit_tree(int argc,
const char **argv,
const char *prefix,
struct repository *repo UNUSED)
{
static struct strbuf buffer = STRBUF_INIT;
struct commit_list *parents = NULL;
struct object_id tree_oid;
struct object_id commit_oid;
struct option options[] = {
OPT_CALLBACK_F('p', NULL, &parents, N_("parent"),
N_("id of a parent commit object"), PARSE_OPT_NONEG,
parse_parent_arg_callback),
OPT_CALLBACK_F('m', NULL, &buffer, N_("message"),
N_("commit message"), PARSE_OPT_NONEG,
parse_message_arg_callback),
OPT_CALLBACK_F('F', NULL, &buffer, N_("file"),
N_("read commit log message from file"), PARSE_OPT_NONEG,
parse_file_arg_callback),
{
.type = OPTION_STRING,
.short_name = 'S',
.long_name = "gpg-sign",
.value = &sign_commit,
.argh = N_("key-id"),
.help = N_("GPG sign commit"),
.flags = PARSE_OPT_OPTARG,
.defval = (intptr_t) "",
},
OPT_END()
};
int ret;
repo_config(the_repository, git_default_config, NULL);
show_usage_with_options_if_asked(argc, argv,
commit_tree_usage, options);
argc = parse_options(argc, argv, prefix, options, commit_tree_usage, 0);
if (argc != 1)
die(_("must give exactly one tree"));
if (repo_get_oid_tree(the_repository, argv[0], &tree_oid))
die(_("not a valid object name %s"), argv[0]);
if (!buffer.len) {
if (strbuf_read(&buffer, 0, 0) < 0)
die_errno(_("git commit-tree: failed to read"));
}
if (commit_tree(buffer.buf, buffer.len, &tree_oid, parents, &commit_oid,
NULL, sign_commit)) {
ret = 1;
goto out;
}
printf("%s\n", oid_to_hex(&commit_oid));
ret = 0;
out:
commit_list_free(parents);
strbuf_release(&buffer);
return ret;
}