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-rw-r--r--builtin/commit-tree.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c
new file mode 100644
index 0000000..cc8d584
--- /dev/null
+++ b/builtin/commit-tree.c
@@ -0,0 +1,151 @@
+/*
+ * GIT - The information manager from hell
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ */
+#include "cache.h"
+#include "config.h"
+#include "object-store.h"
+#include "repository.h"
+#include "commit.h"
+#include "tree.h"
+#include "builtin.h"
+#include "utf8.h"
+#include "gpg-interface.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 commit_tree_config(const char *var, const char *value, void *cb)
+{
+ int status = git_gpg_config(var, value, NULL);
+ if (status)
+ return status;
+ return git_default_config(var, value, cb);
+}
+
+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 (get_oid_commit(arg, &oid))
+ die(_("not a valid object name %s"), arg);
+
+ assert_oid_type(&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)
+{
+ 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),
+ { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key-id"),
+ N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
+ OPT_END()
+ };
+
+ git_config(commit_tree_config, NULL);
+
+ if (argc < 2 || !strcmp(argv[1], "-h"))
+ usage_with_options(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 (get_oid_tree(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)) {
+ strbuf_release(&buffer);
+ return 1;
+ }
+
+ printf("%s\n", oid_to_hex(&commit_oid));
+ strbuf_release(&buffer);
+ return 0;
+}