static char *logmsg_reencode(const struct commit *commit,
const char *output_encoding)
{
static const char *utf8 = "UTF-8";
const char *use_encoding;
char *encoding;
char *out;
if (!*output_encoding)
return NULL;
encoding = get_header(commit, "encoding");
use_encoding = encoding ? encoding : utf8;
if (!strcmp(use_encoding, output_encoding))
if (encoding) /* we'll strip encoding header later */
out = xstrdup(commit->buffer);
else
return NULL; /* nothing to do */
else
out = reencode_string(commit->buffer,
output_encoding, use_encoding);
if (out)
out = replace_encoding_header(out, output_encoding);
free(encoding);
return out;
}
void format_note(struct notes_tree *t, const unsigned char *object_sha1,
struct strbuf *sb, const char *output_encoding, int flags)
{
static const char utf8[] = "utf-8";
const unsigned char *sha1;
char *msg, *msg_p;
unsigned long linelen, msglen;
enum object_type type;
if (!t)
t = &default_notes_tree;
if (!t->initialized)
init_notes(t, NULL, NULL, 0);
sha1 = get_note(t, object_sha1);
if (!sha1)
return;
if (!(msg = read_sha1_file(sha1, &type, &msglen)) || !msglen ||
type != OBJ_BLOB) {
free(msg);
return;
}
if (output_encoding && *output_encoding &&
strcmp(utf8, output_encoding)) {
char *reencoded = reencode_string(msg, output_encoding, utf8);
if (reencoded) {
free(msg);
msg = reencoded;
msglen = strlen(msg);
}
}
/* we will end the annotation by a newline anyway */
if (msglen && msg[msglen - 1] == '\n')
msglen--;
if (flags & NOTES_SHOW_HEADER)
strbuf_addstr(sb, "\nNotes:\n");
for (msg_p = msg; msg_p < msg + msglen; msg_p += linelen + 1) {
linelen = strchrnul(msg_p, '\n') - msg_p;
if (flags & NOTES_INDENT)
strbuf_addstr(sb, " ");
strbuf_add(sb, msg_p, linelen);
strbuf_addch(sb, '\n');
}
free(msg);
}
static int get_message(const char *raw_message, struct commit_message *out)
{
const char *encoding;
const char *p, *abbrev, *eol;
char *q;
int abbrev_len, oneline_len;
if (!raw_message)
return -1;
encoding = get_encoding(raw_message);
if (!encoding)
encoding = "UTF-8";
if (!git_commit_encoding)
git_commit_encoding = "UTF-8";
out->reencoded_message = NULL;
out->message = raw_message;
if (strcmp(encoding, git_commit_encoding))
out->reencoded_message = reencode_string(raw_message,
git_commit_encoding, encoding);
if (out->reencoded_message)
out->message = out->reencoded_message;
abbrev = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV);
abbrev_len = strlen(abbrev);
/* Find beginning and end of commit subject. */
p = out->message;
while (*p && (*p != '\n' || p[1] != '\n'))
p++;
if (*p) {
p += 2;
for (eol = p + 1; *eol && *eol != '\n'; eol++)
; /* do nothing */
} else
eol = p;
oneline_len = eol - p;
out->parent_label = xmalloc(strlen("parent of ") + abbrev_len +
strlen("... ") + oneline_len + 1);
q = out->parent_label;
q = mempcpy(q, "parent of ", strlen("parent of "));
out->label = q;
q = mempcpy(q, abbrev, abbrev_len);
q = mempcpy(q, "... ", strlen("... "));
out->subject = q;
q = mempcpy(q, p, oneline_len);
*q = '\0';
return 0;
}
const char *reencode(char **txt, const char *src_enc, const char *dst_enc)
{
char *tmp;
if (!txt || !*txt || !src_enc || !dst_enc)
return *txt;
tmp = reencode_string(*txt, src_enc, dst_enc);
if (tmp) {
free(*txt);
*txt = tmp;
}
return *txt;
}
static void convert_to_utf8(struct strbuf *line, const char *charset)
{
char *out;
if (!charset || !*charset) {
charset = guess_charset(line, metainfo_charset);
if (!charset)
return;
}
if (!strcasecmp(metainfo_charset, charset))
return;
out = reencode_string(line->buf, metainfo_charset, charset);
if (!out)
die("cannot convert from %s to %s",
charset, metainfo_charset);
strbuf_attach(line, out, strlen(out), strlen(out));
}
static void convert_to_utf8(char *line, unsigned linesize, const char *charset)
{
char *out;
if (!charset || !*charset) {
charset = guess_charset(line, metainfo_charset);
if (!charset)
return;
}
if (!strcmp(metainfo_charset, charset))
return;
out = reencode_string(line, metainfo_charset, charset);
if (!out)
die("cannot convert from %s to %s\n",
charset, metainfo_charset);
strlcpy(line, out, linesize);
free(out);
}
static int convert_to_utf8(struct mailinfo *mi,
struct strbuf *line, const char *charset)
{
char *out;
if (!mi->metainfo_charset || !charset || !*charset)
return 0;
if (same_encoding(mi->metainfo_charset, charset))
return 0;
out = reencode_string(line->buf, mi->metainfo_charset, charset);
if (!out) {
mi->input_error = -1;
return error("cannot convert from %s to %s",
charset, mi->metainfo_charset);
}
strbuf_attach(line, out, strlen(out), strlen(out));
return 0;
}
static int get_message(const char *raw_message, struct commit_message *out)
{
const char *encoding;
const char *abbrev, *subject;
int abbrev_len, subject_len;
char *q;
if (!raw_message)
return -1;
encoding = get_encoding(raw_message);
if (!encoding)
encoding = "UTF-8";
if (!git_commit_encoding)
git_commit_encoding = "UTF-8";
out->reencoded_message = NULL;
out->message = raw_message;
if (strcmp(encoding, git_commit_encoding))
out->reencoded_message = reencode_string(raw_message,
git_commit_encoding, encoding);
if (out->reencoded_message)
out->message = out->reencoded_message;
else
out->message = raw_message;
abbrev = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV);
abbrev_len = strlen(abbrev);
subject_len = find_commit_subject(out->message, &subject);
out->parent_label = xmalloc(strlen("parent of ") + abbrev_len +
strlen("... ") + subject_len + 1);
q = out->parent_label;
q = mempcpy(q, "parent of ", strlen("parent of "));
out->label = q;
q = mempcpy(q, abbrev, abbrev_len);
q = mempcpy(q, "... ", strlen("... "));
out->subject = q;
q = mempcpy(q, subject, subject_len);
*q = '\0';
return 0;
}
static const char *reencode(char **txt, const char *src_enc, const char *dst_enc)
{
char *tmp;
if (!txt)
return NULL;
if (!*txt || !src_enc || !dst_enc)
return *txt;
/* no encoding needed if src_enc equals dst_enc */
if (!strcasecmp(src_enc, dst_enc))
return *txt;
tmp = reencode_string(*txt, dst_enc, src_enc);
if (tmp) {
free(*txt);
*txt = tmp;
}
return *txt;
}
/*
* Fill the given strbuf with the notes associated with the given object.
*
* If the given notes_tree structure is not initialized, it will be auto-
* initialized to the default value (see documentation for init_notes() above).
* If the given notes_tree is NULL, the internal/default notes_tree will be
* used instead.
*
* (raw != 0) gives the %N userformat; otherwise, the note message is given
* for human consumption.
*/
static void format_note(struct notes_tree *t, const struct object_id *object_oid,
struct strbuf *sb, const char *output_encoding, int raw)
{
static const char utf8[] = "utf-8";
const struct object_id *oid;
char *msg, *msg_p;
unsigned long linelen, msglen;
enum object_type type;
if (!t)
t = &default_notes_tree;
if (!t->initialized)
init_notes(t, NULL, NULL, 0);
oid = get_note(t, object_oid);
if (!oid)
return;
if (!(msg = read_object_file(oid, &type, &msglen)) || type != OBJ_BLOB) {
free(msg);
return;
}
if (output_encoding && *output_encoding &&
!is_encoding_utf8(output_encoding)) {
char *reencoded = reencode_string(msg, output_encoding, utf8);
if (reencoded) {
free(msg);
msg = reencoded;
msglen = strlen(msg);
}
}
/* we will end the annotation by a newline anyway */
if (msglen && msg[msglen - 1] == '\n')
msglen--;
if (!raw) {
const char *ref = t->ref;
if (!ref || !strcmp(ref, GIT_NOTES_DEFAULT_REF)) {
strbuf_addstr(sb, "\nNotes:\n");
} else {
if (starts_with(ref, "refs/"))
ref += 5;
if (starts_with(ref, "notes/"))
ref += 6;
strbuf_addf(sb, "\nNotes (%s):\n", ref);
}
}
for (msg_p = msg; msg_p < msg + msglen; msg_p += linelen + 1) {
linelen = strchrnul(msg_p, '\n') - msg_p;
if (!raw)
strbuf_addstr(sb, " ");
strbuf_add(sb, msg_p, linelen);
strbuf_addch(sb, '\n');
}
free(msg);
}
const char *logmsg_reencode(const struct commit *commit,
char **commit_encoding,
const char *output_encoding)
{
static const char *utf8 = "UTF-8";
const char *use_encoding;
char *encoding;
const char *msg = get_commit_buffer(commit, NULL);
char *out;
if (!output_encoding || !*output_encoding) {
if (commit_encoding)
*commit_encoding =
get_header(commit, msg, "encoding");
return msg;
}
encoding = get_header(commit, msg, "encoding");
if (commit_encoding)
*commit_encoding = encoding;
use_encoding = encoding ? encoding : utf8;
if (same_encoding(use_encoding, output_encoding)) {
/*
* No encoding work to be done. If we have no encoding header
* at all, then there's nothing to do, and we can return the
* message verbatim (whether newly allocated or not).
*/
if (!encoding)
return msg;
/*
* Otherwise, we still want to munge the encoding header in the
* result, which will be done by modifying the buffer. If we
* are using a fresh copy, we can reuse it. But if we are using
* the cached copy from get_commit_buffer, we need to duplicate it
* to avoid munging the cached copy.
*/
if (msg == get_cached_commit_buffer(commit, NULL))
out = xstrdup(msg);
else
out = (char *)msg;
}
else {
/*
* There's actual encoding work to do. Do the reencoding, which
* still leaves the header to be replaced in the next step. At
* this point, we are done with msg. If we allocated a fresh
* copy, we can free it.
*/
out = reencode_string(msg, output_encoding, use_encoding);
if (out)
unuse_commit_buffer(commit, msg);
}
/*
* This replacement actually consumes the buffer we hand it, so we do
* not have to worry about freeing the old "out" here.
*/
if (out)
out = replace_encoding_header(out, output_encoding);
if (!commit_encoding)
free(encoding);
/*
* If the re-encoding failed, out might be NULL here; in that
* case we just return the commit message verbatim.
*/
return out ? out : msg;
}
static void handle_commit(struct commit *commit, struct rev_info *rev)
{
int saved_output_format = rev->diffopt.output_format;
const char *commit_buffer;
const char *author, *author_end, *committer, *committer_end;
const char *encoding, *message;
char *reencoded = NULL;
struct commit_list *p;
const char *refname;
int i;
rev->diffopt.output_format = DIFF_FORMAT_CALLBACK;
parse_commit_or_die(commit);
commit_buffer = get_commit_buffer(commit, NULL);
author = strstr(commit_buffer, "\nauthor ");
if (!author)
die ("Could not find author in commit %s",
sha1_to_hex(commit->object.sha1));
author++;
author_end = strchrnul(author, '\n');
committer = strstr(author_end, "\ncommitter ");
if (!committer)
die ("Could not find committer in commit %s",
sha1_to_hex(commit->object.sha1));
committer++;
committer_end = strchrnul(committer, '\n');
message = strstr(committer_end, "\n\n");
encoding = find_encoding(committer_end, message);
if (message)
message += 2;
if (commit->parents &&
get_object_mark(&commit->parents->item->object) != 0 &&
!full_tree) {
parse_commit_or_die(commit->parents->item);
diff_tree_sha1(commit->parents->item->tree->object.sha1,
commit->tree->object.sha1, "", &rev->diffopt);
}
else
diff_root_tree_sha1(commit->tree->object.sha1,
"", &rev->diffopt);
/* Export the referenced blobs, and remember the marks. */
for (i = 0; i < diff_queued_diff.nr; i++)
if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode))
export_blob(diff_queued_diff.queue[i]->two->sha1);
refname = commit->util;
if (anonymize) {
refname = anonymize_refname(refname);
anonymize_ident_line(&committer, &committer_end);
anonymize_ident_line(&author, &author_end);
}
mark_next_object(&commit->object);
if (anonymize)
reencoded = anonymize_commit_message(message);
else if (!is_encoding_utf8(encoding))
reencoded = reencode_string(message, "UTF-8", encoding);
if (!commit->parents)
printf("reset %s\n", refname);
printf("commit %s\nmark :%"PRIu32"\n%.*s\n%.*s\ndata %u\n%s",
refname, last_idnum,
(int)(author_end - author), author,
(int)(committer_end - committer), committer,
(unsigned)(reencoded
? strlen(reencoded) : message
? strlen(message) : 0),
reencoded ? reencoded : message ? message : "");
free(reencoded);
unuse_commit_buffer(commit, commit_buffer);
for (i = 0, p = commit->parents; p; p = p->next) {
int mark = get_object_mark(&p->item->object);
if (!mark)
continue;
if (i == 0)
printf("from :%d\n", mark);
else
printf("merge :%d\n", mark);
i++;
}
if (full_tree)
printf("deleteall\n");
log_tree_diff_flush(rev);
rev->diffopt.output_format = saved_output_format;
printf("\n");
show_progress();
}
static int parse_and_validate_options(int argc, const char *argv[],
const char * const usage[])
{
int f = 0;
argc = parse_options(argc, argv, builtin_commit_options, usage, 0);
if (logfile || message.len || use_message)
use_editor = 0;
if (edit_flag)
use_editor = 1;
if (!use_editor)
setenv("GIT_EDITOR", ":", 1);
if (get_sha1("HEAD", head_sha1))
initial_commit = 1;
if (!get_sha1("MERGE_HEAD", merge_head_sha1))
in_merge = 1;
/* Sanity check options */
if (amend && initial_commit)
die("You have nothing to amend.");
if (amend && in_merge)
die("You are in the middle of a merge -- cannot amend.");
if (use_message)
f++;
if (edit_message)
f++;
if (logfile)
f++;
if (f > 1)
die("Only one of -c/-C/-F can be used.");
if (message.len && f > 0)
die("Option -m cannot be combined with -c/-C/-F.");
if (edit_message)
use_message = edit_message;
if (amend && !use_message)
use_message = "HEAD";
if (use_message) {
unsigned char sha1[20];
static char utf8[] = "UTF-8";
const char *out_enc;
char *enc, *end;
struct commit *commit;
if (get_sha1(use_message, sha1))
die("could not lookup commit %s", use_message);
commit = lookup_commit_reference(sha1);
if (!commit || parse_commit(commit))
die("could not parse commit %s", use_message);
enc = strstr(commit->buffer, "\nencoding");
if (enc) {
end = strchr(enc + 10, '\n');
enc = xstrndup(enc + 10, end - (enc + 10));
} else {
enc = utf8;
}
out_enc = git_commit_encoding ? git_commit_encoding : utf8;
if (strcmp(out_enc, enc))
use_message_buffer =
reencode_string(commit->buffer, out_enc, enc);
/*
* If we failed to reencode the buffer, just copy it
* byte for byte so the user can try to fix it up.
* This also handles the case where input and output
* encodings are identical.
*/
if (use_message_buffer == NULL)
use_message_buffer = xstrdup(commit->buffer);
if (enc != utf8)
free(enc);
}
if (!!also + !!only + !!all + !!interactive > 1)
die("Only one of --include/--only/--all/--interactive can be used.");
if (argc == 0 && (also || (only && !amend)))
die("No paths with --include/--only does not make sense.");
if (argc == 0 && only && amend)
only_include_assumed = "Clever... amending the last one with dirty index.";
if (argc > 0 && !also && !only)
only_include_assumed = "Explicit paths specified without -i nor -o; assuming --only paths...";
if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE;
else if (!strcmp(cleanup_arg, "verbatim"))
cleanup_mode = CLEANUP_NONE;
else if (!strcmp(cleanup_arg, "whitespace"))
cleanup_mode = CLEANUP_SPACE;
else if (!strcmp(cleanup_arg, "strip"))
cleanup_mode = CLEANUP_ALL;
else
die("Invalid cleanup mode %s", cleanup_arg);
if (all && argc > 0)
die("Paths with -a does not make sense.");
else if (interactive && argc > 0)
die("Paths with --interactive does not make sense.");
return argc;
}
static int revert_or_cherry_pick(int argc, const char **argv)
{
unsigned char head[20];
struct commit *base, *next, *parent;
int i;
char *oneline, *reencoded_message = NULL;
const char *message, *encoding;
const char *defmsg = xstrdup(git_path("MERGE_MSG"));
git_config(git_default_config);
me = action == REVERT ? "revert" : "cherry-pick";
setenv(GIT_REFLOG_ACTION, me, 0);
parse_args(argc, argv);
/* this is copied from the shell script, but it's never triggered... */
if (action == REVERT && !no_replay)
die("revert is incompatible with replay");
if (no_commit) {
/*
* We do not intend to commit immediately. We just want to
* merge the differences in, so let's compute the tree
* that represents the "current" state for merge-recursive
* to work on.
*/
if (write_cache_as_tree(head, 0, NULL))
die ("Your index file is unmerged.");
} else {
if (get_sha1("HEAD", head))
die ("You do not have a valid HEAD");
if (read_cache() < 0)
die("could not read the index");
if (index_is_dirty())
die ("Dirty index: cannot %s", me);
discard_cache();
}
if (!commit->parents)
die ("Cannot %s a root commit", me);
if (commit->parents->next) {
/* Reverting or cherry-picking a merge commit */
int cnt;
struct commit_list *p;
if (!mainline)
die("Commit %s is a merge but no -m option was given.",
sha1_to_hex(commit->object.sha1));
for (cnt = 1, p = commit->parents;
cnt != mainline && p;
cnt++)
p = p->next;
if (cnt != mainline || !p)
die("Commit %s does not have parent %d",
sha1_to_hex(commit->object.sha1), mainline);
parent = p->item;
} else if (0 < mainline)
die("Mainline was specified but commit %s is not a merge.",
sha1_to_hex(commit->object.sha1));
else
parent = commit->parents->item;
if (!(message = commit->buffer))
die ("Cannot get commit message for %s",
sha1_to_hex(commit->object.sha1));
/*
* "commit" is an existing commit. We would want to apply
* the difference it introduces since its first parent "prev"
* on top of the current HEAD if we are cherry-pick. Or the
* reverse of it if we are revert.
*/
msg_fd = hold_lock_file_for_update(&msg_file, defmsg, 1);
encoding = get_encoding(message);
if (!encoding)
encoding = "utf-8";
if (!git_commit_encoding)
git_commit_encoding = "utf-8";
if ((reencoded_message = reencode_string(message,
git_commit_encoding, encoding)))
message = reencoded_message;
oneline = get_oneline(message);
if (action == REVERT) {
char *oneline_body = strchr(oneline, ' ');
base = commit;
next = parent;
add_to_msg("Revert \"");
add_to_msg(oneline_body + 1);
add_to_msg("\"\n\nThis reverts commit ");
add_to_msg(sha1_to_hex(commit->object.sha1));
add_to_msg(".\n");
} else {
base = parent;
next = commit;
set_author_ident_env(message);
add_message_to_msg(message);
if (no_replay) {
add_to_msg("(cherry picked from commit ");
add_to_msg(sha1_to_hex(commit->object.sha1));
add_to_msg(")\n");
}
}
if (merge_recursive(sha1_to_hex(base->object.sha1),
sha1_to_hex(head), "HEAD",
sha1_to_hex(next->object.sha1), oneline) ||
write_cache_as_tree(head, 0, NULL)) {
add_to_msg("\nConflicts:\n\n");
read_cache();
for (i = 0; i < active_nr;) {
struct cache_entry *ce = active_cache[i++];
if (ce_stage(ce)) {
add_to_msg("\t");
add_to_msg(ce->name);
add_to_msg("\n");
while (i < active_nr && !strcmp(ce->name,
active_cache[i]->name))
i++;
}
}
if (commit_lock_file(&msg_file) < 0)
die ("Error wrapping up %s", defmsg);
fprintf(stderr, "Automatic %s failed.%s\n",
me, help_msg(commit->object.sha1));
exit(1);
}
if (commit_lock_file(&msg_file) < 0)
die ("Error wrapping up %s", defmsg);
fprintf(stderr, "Finished one %s.\n", me);
/*
*
* If we are cherry-pick, and if the merge did not result in
* hand-editing, we will hit this commit and inherit the original
* author date and name.
* If we are revert, or if our cherry-pick results in a hand merge,
* we had better say that the current user is responsible for that.
*/
if (!no_commit) {
/* 6 is max possible length of our args array including NULL */
const char *args[6];
int i = 0;
args[i++] = "commit";
args[i++] = "-n";
if (signoff)
args[i++] = "-s";
if (!edit) {
args[i++] = "-F";
args[i++] = defmsg;
}
args[i] = NULL;
return execv_git_cmd(args);
}
free(reencoded_message);
return 0;
}
