parent->next->item = remoteheads->item;
parent->next->next = NULL;
prepare_to_commit(remoteheads);
- if (commit_tree(&merge_msg, result_tree, parent, result_commit, NULL,
- sign_commit))
+ if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parent,
+ result_commit, NULL, sign_commit))
die(_("failed to write commit object"));
finish(head, remoteheads, result_commit, "In-index merge");
drop_save();
commit_list_insert(head, &parents);
strbuf_addch(&merge_msg, '\n');
prepare_to_commit(remoteheads);
- if (commit_tree(&merge_msg, result_tree, parents, result_commit,
- NULL, sign_commit))
+ if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parents,
+ result_commit, NULL, sign_commit))
die(_("failed to write commit object"));
strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy);
finish(head, remoteheads, result_commit, buf.buf);
printf(_("Commit %s has a good GPG signature by %s\n"),
hex, signature_check.signer);
- free(signature_check.gpg_output);
- free(signature_check.gpg_status);
- free(signature_check.signer);
- free(signature_check.key);
+ signature_check_clear(&signature_check);
}
}
int save_commit_buffer = 1;
const char *commit_type = "commit";
-static int commit_count;
static struct commit *check_commit(struct object *obj,
const unsigned char *sha1,
struct object *obj = lookup_object(sha1);
if (!obj) {
struct commit *c = alloc_commit_node();
- c->index = commit_count++;
return create_object(sha1, OBJ_COMMIT, c);
}
if (!obj->type)
return 0;
}
+struct commit_buffer {
+ void *buffer;
+ unsigned long size;
+};
+define_commit_slab(buffer_slab, struct commit_buffer);
+static struct buffer_slab buffer_slab = COMMIT_SLAB_INIT(1, buffer_slab);
+
+void set_commit_buffer(struct commit *commit, void *buffer, unsigned long size)
+{
+ struct commit_buffer *v = buffer_slab_at(&buffer_slab, commit);
+ v->buffer = buffer;
+ v->size = size;
+}
+
+const void *get_cached_commit_buffer(const struct commit *commit, unsigned long *sizep)
+{
+ struct commit_buffer *v = buffer_slab_at(&buffer_slab, commit);
+ if (sizep)
+ *sizep = v->size;
+ return v->buffer;
+}
+
+const void *get_commit_buffer(const struct commit *commit, unsigned long *sizep)
+{
+ const void *ret = get_cached_commit_buffer(commit, sizep);
+ if (!ret) {
+ enum object_type type;
+ unsigned long size;
+ ret = read_sha1_file(commit->object.sha1, &type, &size);
+ if (!ret)
+ die("cannot read commit object %s",
+ sha1_to_hex(commit->object.sha1));
+ if (type != OBJ_COMMIT)
+ die("expected commit for %s, got %s",
+ sha1_to_hex(commit->object.sha1), typename(type));
+ if (sizep)
+ *sizep = size;
+ }
+ return ret;
+}
+
+void unuse_commit_buffer(const struct commit *commit, const void *buffer)
+{
+ struct commit_buffer *v = buffer_slab_at(&buffer_slab, commit);
+ if (v->buffer != buffer)
+ free((void *)buffer);
+}
+
+void free_commit_buffer(struct commit *commit)
+{
+ struct commit_buffer *v = buffer_slab_at(&buffer_slab, commit);
+ free(v->buffer);
+ v->buffer = NULL;
+ v->size = 0;
+}
+
+const void *detach_commit_buffer(struct commit *commit, unsigned long *sizep)
+{
+ struct commit_buffer *v = buffer_slab_at(&buffer_slab, commit);
+ void *ret;
+
+ ret = v->buffer;
+ if (sizep)
+ *sizep = v->size;
+
+ v->buffer = NULL;
+ v->size = 0;
+ return ret;
+}
+
int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size)
{
const char *tail = buffer;
}
ret = parse_commit_buffer(item, buffer, size);
if (save_commit_buffer && !ret) {
- item->buffer = buffer;
+ set_commit_buffer(item, buffer, size);
return 0;
}
free(buffer);
struct commit *commit)
{
const char *buf, *line_end, *ident_line;
- char *buffer = NULL;
+ const char *buffer = get_commit_buffer(commit, NULL);
struct ident_split ident;
char *date_end;
unsigned long date;
- if (!commit->buffer) {
- unsigned long size;
- enum object_type type;
- buffer = read_sha1_file(commit->object.sha1, &type, &size);
- if (!buffer)
- return;
- }
-
- for (buf = commit->buffer ? commit->buffer : buffer;
- buf;
- buf = line_end + 1) {
+ for (buf = buffer; buf; buf = line_end + 1) {
line_end = strchrnul(buf, '\n');
- ident_line = skip_prefix(buf, "author ");
- if (!ident_line) {
+ if (!skip_prefix(buf, "author ", &ident_line)) {
if (!line_end[0] || line_end[1] == '\n')
return; /* end of header */
continue;
*(author_date_slab_at(author_date, commit)) = date;
fail_exit:
- free(buffer);
+ unuse_commit_buffer(commit, buffer);
}
static int compare_commits_by_author_date(const void *a_, const void *b_,
p->item->object.flags |= STALE;
num_head++;
}
- array = xcalloc(sizeof(*array), num_head);
+ array = xcalloc(num_head, sizeof(*array));
for (p = heads, i = 0; p; p = p->next) {
if (p->item->object.flags & STALE) {
array[i++] = p->item;
return 0;
}
-int parse_signed_commit(const unsigned char *sha1,
+int parse_signed_commit(const struct commit *commit,
struct strbuf *payload, struct strbuf *signature)
{
+
unsigned long size;
- enum object_type type;
- char *buffer = read_sha1_file(sha1, &type, &size);
+ const char *buffer = get_commit_buffer(commit, &size);
int in_signature, saw_signature = -1;
- char *line, *tail;
-
- if (!buffer || type != OBJ_COMMIT)
- goto cleanup;
+ const char *line, *tail;
line = buffer;
tail = buffer + size;
saw_signature = 0;
while (line < tail) {
const char *sig = NULL;
- char *next = memchr(line, '\n', tail - line);
+ const char *next = memchr(line, '\n', tail - line);
next = next ? next + 1 : tail;
if (in_signature && line[0] == ' ')
}
line = next;
}
- cleanup:
- free(buffer);
+ unuse_commit_buffer(commit, buffer);
return saw_signature;
}
for (i = 0; i < ARRAY_SIZE(sigcheck_gpg_status); i++) {
const char *found, *next;
- found = skip_prefix(buf, sigcheck_gpg_status[i].check + 1);
- if (!found) {
+ if (!skip_prefix(buf, sigcheck_gpg_status[i].check + 1, &found)) {
found = strstr(buf, sigcheck_gpg_status[i].check);
if (!found)
continue;
sigc->result = 'N';
- if (parse_signed_commit(commit->object.sha1,
- &payload, &signature) <= 0)
+ if (parse_signed_commit(commit, &payload, &signature) <= 0)
goto out;
status = verify_signed_buffer(payload.buf, payload.len,
signature.buf, signature.len,
&gpg_output, &gpg_status);
if (status && !gpg_output.len)
goto out;
+ sigc->payload = strbuf_detach(&payload, NULL);
sigc->gpg_output = strbuf_detach(&gpg_output, NULL);
sigc->gpg_status = strbuf_detach(&gpg_status, NULL);
parse_gpg_output(sigc);
{
struct commit_extra_header *extra = NULL;
unsigned long size;
- enum object_type type;
- char *buffer = read_sha1_file(commit->object.sha1, &type, &size);
- if (buffer && type == OBJ_COMMIT)
- extra = read_commit_extra_header_lines(buffer, size, exclude);
- free(buffer);
+ const char *buffer = get_commit_buffer(commit, &size);
+ extra = read_commit_extra_header_lines(buffer, size, exclude);
+ unuse_commit_buffer(commit, buffer);
return extra;
}
}
}
-int commit_tree(const struct strbuf *msg, const unsigned char *tree,
+int commit_tree(const char *msg, size_t msg_len,
+ const unsigned char *tree,
struct commit_list *parents, unsigned char *ret,
const char *author, const char *sign_commit)
{
int result;
append_merge_tag_headers(parents, &tail);
- result = commit_tree_extended(msg, tree, parents, ret,
+ result = commit_tree_extended(msg, msg_len, tree, parents, ret,
author, sign_commit, extra);
free_commit_extra_headers(extra);
return result;
"You may want to amend it after fixing the message, or set the config\n"
"variable i18n.commitencoding to the encoding your project uses.\n";
-int commit_tree_extended(const struct strbuf *msg, const unsigned char *tree,
+int commit_tree_extended(const char *msg, size_t msg_len,
+ const unsigned char *tree,
struct commit_list *parents, unsigned char *ret,
const char *author, const char *sign_commit,
struct commit_extra_header *extra)
assert_sha1_type(tree, OBJ_TREE);
- if (memchr(msg->buf, '\0', msg->len))
+ if (memchr(msg, '\0', msg_len))
return error("a NUL byte in commit log message not allowed.");
/* Not having i18n.commitencoding is the same as having utf-8 */
strbuf_addch(&buffer, '\n');
/* And add the comment */
- strbuf_addbuf(&buffer, msg);
+ strbuf_add(&buffer, msg, msg_len);
/* And check the encoding */
if (encoding_is_utf8 && !verify_utf8(&buffer))
static struct startup_info git_startup_info;
static int use_pager = -1;
+static char orig_cwd[PATH_MAX];
+static const char *env_names[] = {
+ GIT_DIR_ENVIRONMENT,
+ GIT_WORK_TREE_ENVIRONMENT,
+ GIT_IMPLICIT_WORK_TREE_ENVIRONMENT,
+ GIT_PREFIX_ENVIRONMENT
+};
+static char *orig_env[4];
+static int saved_environment;
+
+static void save_env(void)
+{
+ int i;
+ if (saved_environment)
+ return;
+ saved_environment = 1;
+ if (!getcwd(orig_cwd, sizeof(orig_cwd)))
+ die_errno("cannot getcwd");
+ for (i = 0; i < ARRAY_SIZE(env_names); i++) {
+ orig_env[i] = getenv(env_names[i]);
+ if (orig_env[i])
+ orig_env[i] = xstrdup(orig_env[i]);
+ }
+}
+
+static void restore_env(void)
+{
+ int i;
+ if (*orig_cwd && chdir(orig_cwd))
+ die_errno("could not move to %s", orig_cwd);
+ for (i = 0; i < ARRAY_SIZE(env_names); i++) {
+ if (orig_env[i])
+ setenv(env_names[i], orig_env[i], 1);
+ else
+ unsetenv(env_names[i]);
+ }
+}
static void commit_pager_choice(void) {
switch (use_pager) {
/*
* Check remaining flags.
*/
- if (starts_with(cmd, "--exec-path")) {
- cmd += 11;
+ if (skip_prefix(cmd, "--exec-path", &cmd)) {
if (*cmd == '=')
git_set_argv_exec_path(cmd + 1);
else {
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--git-dir=")) {
- setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1);
+ } else if (skip_prefix(cmd, "--git-dir=", &cmd)) {
+ setenv(GIT_DIR_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--namespace")) {
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--namespace=")) {
- setenv(GIT_NAMESPACE_ENVIRONMENT, cmd + 12, 1);
+ } else if (skip_prefix(cmd, "--namespace=", &cmd)) {
+ setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--work-tree")) {
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--work-tree=")) {
- setenv(GIT_WORK_TREE_ENVIRONMENT, cmd + 12, 1);
+ } else if (skip_prefix(cmd, "--work-tree=", &cmd)) {
+ setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--bare")) {
* RUN_SETUP for reading from the configuration file.
*/
#define NEED_WORK_TREE (1<<3)
+#define NO_SETUP (1<<4)
struct cmd_struct {
const char *cmd;
{ "cherry", cmd_cherry, RUN_SETUP },
{ "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE },
{ "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE },
- { "clone", cmd_clone },
+ { "clone", cmd_clone, NO_SETUP },
{ "column", cmd_column, RUN_SETUP_GENTLY },
{ "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE },
{ "commit-tree", cmd_commit_tree, RUN_SETUP },
{ "hash-object", cmd_hash_object },
{ "help", cmd_help },
{ "index-pack", cmd_index_pack, RUN_SETUP_GENTLY },
- { "init", cmd_init_db },
- { "init-db", cmd_init_db },
+ { "init", cmd_init_db, NO_SETUP },
+ { "init-db", cmd_init_db, NO_SETUP },
{ "log", cmd_log, RUN_SETUP },
{ "ls-files", cmd_ls_files, RUN_SETUP },
{ "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY },
{ "upload-archive", cmd_upload_archive },
{ "upload-archive--writer", cmd_upload_archive_writer },
{ "var", cmd_var, RUN_SETUP_GENTLY },
+ { "verify-commit", cmd_verify_commit, RUN_SETUP },
{ "verify-pack", cmd_verify_pack },
{ "verify-tag", cmd_verify_tag, RUN_SETUP },
{ "version", cmd_version },
struct cmd_struct *p = commands+i;
if (strcmp(p->cmd, cmd))
continue;
+ if (saved_environment && (p->option & NO_SETUP)) {
+ restore_env();
+ break;
+ }
exit(run_builtin(p, argc, argv));
}
}
* of overriding "git log" with "git show" by having
* alias.log = show
*/
- if (done_alias || !handle_alias(argcp, argv))
+ if (done_alias)
+ break;
+ save_env();
+ if (!handle_alias(argcp, argv))
break;
done_alias = 1;
}
* So we just directly call the builtin handler, and die if
* that one cannot handle it.
*/
- if (starts_with(cmd, "git-")) {
- cmd += 4;
+ if (skip_prefix(cmd, "git-", &cmd)) {
argv[0] = cmd;
handle_builtin(argc, argv);
die("cannot handle %s as a builtin", cmd);
argc--;
handle_options(&argv, &argc, NULL);
if (argc > 0) {
- if (starts_with(argv[0], "--"))
- argv[0] += 2;
+ /* translate --help and --version into commands */
+ skip_prefix(argv[0], "--", &argv[0]);
} else {
/* The user didn't specify a command; give them help */
commit_pager_choice();
const char *fmt;
int i;
- if (!starts_with(var, "pretty."))
+ if (!skip_prefix(var, "pretty.", &name))
return 0;
- name = var + strlen("pretty.");
for (i = 0; i < builtin_formats_len; i++) {
if (!strcmp(commit_formats[i].name, name))
return 0;
enum rfc2047_type {
RFC2047_SUBJECT,
- RFC2047_ADDRESS,
+ RFC2047_ADDRESS
};
static int is_rfc2047_special(char ch, enum rfc2047_type type)
return strbuf_detach(&tmp, NULL);
}
-char *logmsg_reencode(const struct commit *commit,
- char **commit_encoding,
- const char *output_encoding)
+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;
- char *msg = commit->buffer;
+ const char *msg = get_commit_buffer(commit, NULL);
char *out;
- if (!msg) {
- enum object_type type;
- unsigned long size;
-
- msg = read_sha1_file(commit->object.sha1, &type, &size);
- if (!msg)
- die("Cannot read commit object %s",
- sha1_to_hex(commit->object.sha1));
- if (type != OBJ_COMMIT)
- die("Expected commit for '%s', got %s",
- sha1_to_hex(commit->object.sha1), typename(type));
- }
-
if (!output_encoding || !*output_encoding) {
if (commit_encoding)
*commit_encoding =
* 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 commit->buffer, we need to duplicate it
- * to avoid munging commit->buffer.
+ * the cached copy from get_commit_buffer, we need to duplicate it
+ * to avoid munging the cached copy.
*/
- out = msg;
- if (out == commit->buffer)
- out = xstrdup(out);
+ if (msg == get_cached_commit_buffer(commit, NULL))
+ out = xstrdup(msg);
+ else
+ out = (char *)msg;
}
else {
/*
* copy, we can free it.
*/
out = reencode_string(msg, output_encoding, use_encoding);
- if (out && msg != commit->buffer)
- free(msg);
+ if (out)
+ unuse_commit_buffer(commit, msg);
}
/*
return out ? out : msg;
}
-void logmsg_free(char *msg, const struct commit *commit)
-{
- if (msg != commit->buffer)
- free(msg);
-}
-
static int mailmap_name(const char **email, size_t *email_len,
const char **name, size_t *name_len)
{
struct signature_check signature_check;
enum flush_type flush_type;
enum trunc_type truncate;
- char *message;
+ const char *message;
char *commit_encoding;
size_t width, indent1, indent2;
int auto_color;
if (c->signature_check.key)
strbuf_addstr(sb, c->signature_check.key);
break;
+ default:
+ return 0;
}
return 2;
}
context.commit = commit;
context.pretty_ctx = pretty_ctx;
context.wrap_start = sb->len;
+ /*
+ * convert a commit message to UTF-8 first
+ * as far as 'format_commit_item' assumes it in UTF-8
+ */
context.message = logmsg_reencode(commit,
&context.commit_encoding,
- output_enc);
+ utf8);
strbuf_expand(sb, format, format_commit_item, &context);
rewrap_message_tail(sb, &context, 0, 0, 0);
+ /* then convert a commit message to an actual output encoding */
if (output_enc) {
if (same_encoding(utf8, output_enc))
output_enc = NULL;
}
free(context.commit_encoding);
- logmsg_free(context.message, commit);
- signature_check_clear(&context.signature_check);
+ unuse_commit_buffer(commit, context.message);
- free(context.signature_check.gpg_output);
- free(context.signature_check.signer);
}
static void pp_header(struct pretty_print_context *pp,
unsigned long beginning_of_body;
int indent = 4;
const char *msg;
- char *reencoded;
+ const char *reencoded;
const char *encoding;
int need_8bit_cte = pp->need_8bit_cte;
if (pp->fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
strbuf_addch(sb, '\n');
- logmsg_free(reencoded, commit);
+ unuse_commit_buffer(commit, reencoded);
}
void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
test_tick && git rebase -f HEAD^^ && git tag sixth-signed HEAD^ &&
git tag seventh-signed
+
+ echo 8 >file && test_tick && git commit -a -m eighth -SB7227189 &&
+ git tag eighth-signed-alt
'
- test_expect_success GPG 'show signatures' '
+ test_expect_success GPG 'verify and show signatures' '
(
- for commit in initial second merge fourth-signed fifth-signed sixth-signed master
+ for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
do
+ git verify-commit $commit &&
git show --pretty=short --show-signature $commit >actual &&
grep "Good signature from" actual &&
- ! grep "BAD signature from" actual || exit 1
- echo $commit OK
+ ! grep "BAD signature from" actual &&
+ echo $commit OK || exit 1
done
) &&
(
for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
do
+ test_must_fail git verify-commit $commit &&
git show --pretty=short --show-signature $commit >actual &&
! grep "Good signature from" actual &&
- ! grep "BAD signature from" actual || exit 1
- echo $commit OK
+ ! grep "BAD signature from" actual &&
+ echo $commit OK || exit 1
+ done
+ ) &&
+ (
+ for commit in eighth-signed-alt
+ do
+ git show --pretty=short --show-signature $commit >actual &&
+ grep "Good signature from" actual &&
+ ! grep "BAD signature from" actual &&
+ grep "not certified" actual &&
+ echo $commit OK || exit 1
done
)
'
+ test_expect_success GPG 'show signed commit with signature' '
+ git show -s initial >commit &&
+ git show -s --show-signature initial >show &&
+ git verify-commit -v initial >verify.1 2>verify.2 &&
+ git cat-file commit initial >cat &&
+ grep -v "gpg: " show >show.commit &&
+ grep "gpg: " show >show.gpg &&
+ grep -v "^ " cat | grep -v "^gpgsig " >cat.commit &&
+ test_cmp show.commit commit &&
+ test_cmp show.gpg verify.2 &&
+ test_cmp cat.commit verify.1
+ '
+
test_expect_success GPG 'detect fudged signature' '
- git cat-file commit master >raw &&
+ git cat-file commit seventh-signed >raw &&
sed -e "s/seventh/7th forged/" raw >forged1 &&
git hash-object -w -t commit forged1 >forged1.commit &&
+ ! git verify-commit $(cat forged1.commit) &&
git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
grep "BAD signature from" actual1 &&
! grep "Good signature from" actual1
'
test_expect_success GPG 'detect fudged signature with NUL' '
- git cat-file commit master >raw &&
+ git cat-file commit seventh-signed >raw &&
cat raw >forged2 &&
echo Qwik | tr "Q" "\000" >>forged2 &&
git hash-object -w -t commit forged2 >forged2.commit &&
+ ! git verify-commit $(cat forged2.commit) &&
git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
grep "BAD signature from" actual2 &&
! grep "Good signature from" actual2
test_expect_success GPG 'amending already signed commit' '
git checkout fourth-signed^0 &&
git commit --amend -S --no-edit &&
+ git verify-commit HEAD &&
git show -s --show-signature HEAD >actual &&
grep "Good signature from" actual &&
! grep "BAD signature from" actual
'
+test_expect_success GPG 'show good signature with custom format' '
+ cat >expect <<-\EOF &&
+ G
+ 13B6F51ECDDE430D
+ C O Mitter <committer@example.com>
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" sixth-signed >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success GPG 'show bad signature with custom format' '
+ cat >expect <<-\EOF &&
+ B
+ 13B6F51ECDDE430D
+ C O Mitter <committer@example.com>
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" $(cat forged1.commit) >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success GPG 'show unknown signature with custom format' '
+ cat >expect <<-\EOF &&
+ U
+ 61092E85B7227189
+ Eris Discordia <discord@example.net>
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" eighth-signed-alt >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success GPG 'show lack of signature with custom format' '
+ cat >expect <<-\EOF &&
+ N
+
+
+ EOF
+ git log -1 --format="%G?%n%GK%n%GS" seventh-unsigned >actual &&
+ test_cmp expect actual
+'
+
test_done