#include "refs.h"
#include "parse-options.h"
#include "run-command.h"
+#include "tag.h"
static const char * const git_replace_usage[] = {
N_("git replace [-f] <object> <replacement>"),
};
enum replace_format {
- REPLACE_FORMAT_SHORT,
- REPLACE_FORMAT_MEDIUM,
- REPLACE_FORMAT_LONG
+ REPLACE_FORMAT_SHORT,
+ REPLACE_FORMAT_MEDIUM,
+ REPLACE_FORMAT_LONG
};
struct show_data {
}
/*
- * Write the contents of the object named by "sha1" to the file "filename",
- * pretty-printed for human editing based on its type.
+ * Write the contents of the object named by "sha1" to the file "filename".
+ * If "raw" is true, then the object's raw contents are printed according to
+ * "type". Otherwise, we pretty-print the contents for human editing.
*/
-static void export_object(const unsigned char *sha1, const char *filename)
+static void export_object(const unsigned char *sha1, enum object_type type,
+ int raw, const char *filename)
{
- const char *argv[] = { "--no-replace-objects", "cat-file", "-p", NULL, NULL };
- struct child_process cmd = { argv };
+ struct child_process cmd = { NULL };
int fd;
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
die_errno("unable to open %s for writing", filename);
- argv[3] = sha1_to_hex(sha1);
+ argv_array_push(&cmd.args, "--no-replace-objects");
+ argv_array_push(&cmd.args, "cat-file");
+ if (raw)
+ argv_array_push(&cmd.args, typename(type));
+ else
+ argv_array_push(&cmd.args, "-p");
+ argv_array_push(&cmd.args, sha1_to_hex(sha1));
cmd.git_cmd = 1;
cmd.out = fd;
if (run_command(&cmd))
die("cat-file reported failure");
-
- close(fd);
}
/*
* The sha1 of the written object is returned via sha1.
*/
static void import_object(unsigned char *sha1, enum object_type type,
- const char *filename)
+ int raw, const char *filename)
{
int fd;
if (fd < 0)
die_errno("unable to open %s for reading", filename);
- if (type == OBJ_TREE) {
+ if (!raw && type == OBJ_TREE) {
const char *argv[] = { "mktree", NULL };
struct child_process cmd = { argv };
struct strbuf result = STRBUF_INIT;
*/
}
-static int edit_and_replace(const char *object_ref, int force)
+static int edit_and_replace(const char *object_ref, int force, int raw)
{
char *tmpfile = git_pathdup("REPLACE_EDITOBJ");
enum object_type type;
check_ref_valid(old, prev, ref, sizeof(ref), force);
- export_object(old, tmpfile);
+ export_object(old, type, raw, tmpfile);
if (launch_editor(tmpfile, NULL, NULL) < 0)
die("editing object file failed");
- import_object(new, type, tmpfile);
+ import_object(new, type, raw, tmpfile);
free(tmpfile);
strbuf_release(&new_parents);
}
+struct check_mergetag_data {
+ int argc;
+ const char **argv;
+};
+
+static void check_one_mergetag(struct commit *commit,
+ struct commit_extra_header *extra,
+ void *data)
+{
+ struct check_mergetag_data *mergetag_data = (struct check_mergetag_data *)data;
+ const char *ref = mergetag_data->argv[0];
+ unsigned char tag_sha1[20];
+ struct tag *tag;
+ int i;
+
+ hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), tag_sha1);
+ tag = lookup_tag(tag_sha1);
+ if (!tag)
+ die(_("bad mergetag in commit '%s'"), ref);
+ if (parse_tag_buffer(tag, extra->value, extra->len))
+ die(_("malformed mergetag in commit '%s'"), ref);
+
+ /* iterate over new parents */
+ for (i = 1; i < mergetag_data->argc; i++) {
+ unsigned char sha1[20];
+ if (get_sha1(mergetag_data->argv[i], sha1) < 0)
+ die(_("Not a valid object name: '%s'"), mergetag_data->argv[i]);
+ if (!hashcmp(tag->tagged->sha1, sha1))
+ return; /* found */
+ }
+
+ die(_("original commit '%s' contains mergetag '%s' that is discarded; "
+ "use --edit instead of --graft"), ref, sha1_to_hex(tag_sha1));
+}
+
+static void check_mergetags(struct commit *commit, int argc, const char **argv)
+{
+ struct check_mergetag_data mergetag_data;
+
+ mergetag_data.argc = argc;
+ mergetag_data.argv = argv;
+ for_each_mergetag(check_one_mergetag, commit, &mergetag_data);
+}
+
static int create_graft(int argc, const char **argv, int force)
{
unsigned char old[20], new[20];
replace_parents(&buf, argc - 1, &argv[1]);
+ if (remove_signature(&buf)) {
+ warning(_("the original commit '%s' has a gpg signature."), old_ref);
+ warning(_("the signature will be removed in the replacement commit!"));
+ }
+
+ check_mergetags(commit, argc, argv);
+
if (write_sha1_file(buf.buf, buf.len, commit_type, new))
die(_("could not write replacement commit for: '%s'"), old_ref);
int cmd_replace(int argc, const char **argv, const char *prefix)
{
int force = 0;
+ int raw = 0;
const char *format = NULL;
enum {
MODE_UNSPECIFIED = 0,
OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT),
OPT_CMDMODE('g', "graft", &cmdmode, N_("change a commit's parents"), MODE_GRAFT),
OPT_BOOL('f', "force", &force, N_("replace the ref if it exists")),
+ OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")),
OPT_STRING(0, "format", &format, N_("format"), N_("use this format")),
OPT_END()
};
usage_msg_opt("-f only makes sense when writing a replacement",
git_replace_usage, options);
+ if (raw && cmdmode != MODE_EDIT)
+ usage_msg_opt("--raw only makes sense with --edit",
+ git_replace_usage, options);
+
switch (cmdmode) {
case MODE_DELETE:
if (argc < 1)
if (argc != 1)
usage_msg_opt("-e needs exactly one argument",
git_replace_usage, options);
- return edit_and_replace(argv[0], force);
+ return edit_and_replace(argv[0], force, raw);
case MODE_GRAFT:
if (argc < 1)