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git
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git/builtin/log.c

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C
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/*
* Builtin "git log" and related commands (show, whatchanged)
*
* (C) Copyright 2006 Linus Torvalds
* 2006 Junio Hamano
*/
#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
#include "config.h"
#include "refs.h"
#include "object-store.h"
#include "color.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"
#include "tag.h"
#include "reflog-walk.h"
#include "patch-ids.h"
#include "run-command.h"
#include "shortlog.h"
#include "remote.h"
#include "string-list.h"
#include "parse-options.h"
#include "line-log.h"
#include "branch.h"
#include "streaming.h"
#include "version.h"
#include "mailmap.h"
#include "gpg-interface.h"
#include "progress.h"
#include "commit-slab.h"
#include "repository.h"
#include "commit-reach.h"
#include "interdiff.h"
#include "range-diff.h"
#define MAIL_DEFAULT_WRAP 72
#define COVER_FROM_AUTO_MAX_SUBJECT_LEN 100
/* Set a default date-time format for git log ("log.date" config variable) */
static const char *default_date_mode = NULL;
static int default_abbrev_commit;
static int default_show_root = 1;
static int default_follow;
static int default_show_signature;
static int default_encode_email_headers = 1;
static int decoration_style;
static int decoration_given;
static int use_mailmap_config = 1;
static const char *fmt_patch_subject_prefix = "PATCH";
static const char *fmt_pretty;
static const char * const builtin_log_usage[] = {
N_("git log [<options>] [<revision-range>] [[--] <path>...]"),
N_("git show [<options>] <object>..."),
NULL
};
struct line_opt_callback_data {
struct rev_info *rev;
const char *prefix;
struct string_list args;
};
static int session_is_interactive(void)
{
return isatty(1) || pager_in_use();
}
static int auto_decoration_style(void)
{
return session_is_interactive() ? DECORATE_SHORT_REFS : 0;
}
static int parse_decoration_style(const char *value)
{
switch (git_parse_maybe_bool(value)) {
case 1:
return DECORATE_SHORT_REFS;
case 0:
return 0;
default:
break;
}
if (!strcmp(value, "full"))
return DECORATE_FULL_REFS;
else if (!strcmp(value, "short"))
return DECORATE_SHORT_REFS;
else if (!strcmp(value, "auto"))
return auto_decoration_style();
/*
* Please update _git_log() in git-completion.bash when you
* add new decoration styles.
*/
return -1;
}
static int decorate_callback(const struct option *opt, const char *arg, int unset)
{
if (unset)
decoration_style = 0;
else if (arg)
decoration_style = parse_decoration_style(arg);
else
decoration_style = DECORATE_SHORT_REFS;
if (decoration_style < 0)
die(_("invalid --decorate option: %s"), arg);
decoration_given = 1;
return 0;
}
static int log_line_range_callback(const struct option *option, const char *arg, int unset)
{
struct line_opt_callback_data *data = option->value;
BUG_ON_OPT_NEG(unset);
if (!arg)
return -1;
data->rev->line_level_traverse = 1;
string_list_append(&data->args, arg);
return 0;
}
static void init_log_defaults(void)
{
init_grep_defaults(the_repository);
init_diff_ui_defaults();
decoration_style = auto_decoration_style();
}
static void cmd_log_init_defaults(struct rev_info *rev)
{
if (fmt_pretty)
get_commit_format(fmt_pretty, rev);
if (default_follow)
rev->diffopt.flags.default_follow_renames = 1;
rev->verbose_header = 1;
rev->diffopt.flags.recursive = 1;
rev->diffopt.stat_width = -1; /* use full terminal width */
rev->diffopt.stat_graph_width = -1; /* respect statGraphWidth config */
rev->abbrev_commit = default_abbrev_commit;
rev->show_root_diff = default_show_root;
rev->subject_prefix = fmt_patch_subject_prefix;
rev->show_signature = default_show_signature;
rev->encode_email_headers = default_encode_email_headers;
rev->diffopt.flags.allow_textconv = 1;
if (default_date_mode)
parse_date_format(default_date_mode, &rev->date_mode);
}
static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
struct rev_info *rev, struct setup_revision_opt *opt)
{
struct userformat_want w;
int quiet = 0, source = 0, mailmap;
static struct line_opt_callback_data line_cb = {NULL, NULL, STRING_LIST_INIT_DUP};
static struct string_list decorate_refs_exclude = STRING_LIST_INIT_NODUP;
static struct string_list decorate_refs_exclude_config = STRING_LIST_INIT_NODUP;
static struct string_list decorate_refs_include = STRING_LIST_INIT_NODUP;
struct decoration_filter decoration_filter = {&decorate_refs_include,
&decorate_refs_exclude,
&decorate_refs_exclude_config};
static struct revision_sources revision_sources;
const struct option builtin_log_options[] = {
OPT__QUIET(&quiet, N_("suppress diff output")),
OPT_BOOL(0, "source", &source, N_("show source")),
OPT_BOOL(0, "use-mailmap", &mailmap, N_("Use mail map file")),
OPT_ALIAS(0, "mailmap", "use-mailmap"),
OPT_STRING_LIST(0, "decorate-refs", &decorate_refs_include,
N_("pattern"), N_("only decorate refs that match <pattern>")),
OPT_STRING_LIST(0, "decorate-refs-exclude", &decorate_refs_exclude,
N_("pattern"), N_("do not decorate refs that match <pattern>")),
OPT_CALLBACK_F(0, "decorate", NULL, NULL, N_("decorate options"),
PARSE_OPT_OPTARG, decorate_callback),
OPT_CALLBACK('L', NULL, &line_cb, "n,m:file",
N_("Process line range n,m in file, counting from 1"),
log_line_range_callback),
OPT_END()
};
line_cb.rev = rev;
line_cb.prefix = prefix;
mailmap = use_mailmap_config;
argc = parse_options(argc, argv, prefix,
builtin_log_options, builtin_log_usage,
PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN |
PARSE_OPT_KEEP_DASHDASH);
if (quiet)
rev->diffopt.output_format |= DIFF_FORMAT_NO_OUTPUT;
argc = setup_revisions(argc, argv, rev, opt);
/* Any arguments at this point are not recognized */
if (argc > 1)
die(_("unrecognized argument: %s"), argv[1]);
memset(&w, 0, sizeof(w));
userformat_find_requirements(NULL, &w);
if (!rev->show_notes_given && (!rev->pretty_given || w.notes))
rev->show_notes = 1;
if (rev->show_notes)
load_display_notes(&rev->notes_opt);
if ((rev->diffopt.pickaxe_opts & DIFF_PICKAXE_KINDS_MASK) ||
rev->diffopt.filter || rev->diffopt.flags.follow_renames)
rev->always_show_header = 0;
if (source || w.source) {
init_revision_sources(&revision_sources);
rev->sources = &revision_sources;
}
if (mailmap) {
rev->mailmap = xcalloc(1, sizeof(struct string_list));
read_mailmap(rev->mailmap, NULL);
}
if (rev->pretty_given && rev->commit_format == CMIT_FMT_RAW) {
/*
* "log --pretty=raw" is special; ignore UI oriented
* configuration variables such as decoration.
*/
if (!decoration_given)
decoration_style = 0;
if (!rev->abbrev_commit_given)
rev->abbrev_commit = 0;
}
if (decoration_style) {
const struct string_list *config_exclude =
repo_config_get_value_multi(the_repository,
"log.excludeDecoration");
if (config_exclude) {
struct string_list_item *item;
for_each_string_list_item(item, config_exclude)
string_list_append(&decorate_refs_exclude_config,
item->string);
}
rev->show_decorations = 1;
load_ref_decorations(&decoration_filter, decoration_style);
}
if (rev->line_level_traverse)
line_log_init(rev, line_cb.prefix, &line_cb.args);
setup_pager();
}
static void cmd_log_init(int argc, const char **argv, const char *prefix,
struct rev_info *rev, struct setup_revision_opt *opt)
{
cmd_log_init_defaults(rev);
cmd_log_init_finish(argc, argv, prefix, rev, opt);
}
/*
* This gives a rough estimate for how many commits we
* will print out in the list.
*/
static int estimate_commit_count(struct commit_list *list)
{
int n = 0;
while (list) {
struct commit *commit = list->item;
unsigned int flags = commit->object.flags;
list = list->next;
if (!(flags & (TREESAME | UNINTERESTING)))
n++;
}
return n;
}
static void show_early_header(struct rev_info *rev, const char *stage, int nr)
{
if (rev->shown_one) {
rev->shown_one = 0;
if (rev->commit_format != CMIT_FMT_ONELINE)
putchar(rev->diffopt.line_termination);
}
fprintf(rev->diffopt.file, _("Final output: %d %s\n"), nr, stage);
}
static struct itimerval early_output_timer;
static void log_show_early(struct rev_info *revs, struct commit_list *list)
{
int i = revs->early_output, close_file = revs->diffopt.close_file;
int show_header = 1;
revs->diffopt.close_file = 0;
sort_in_topological_order(&list, revs->sort_order);
while (list && i) {
struct commit *commit = list->item;
switch (simplify_commit(revs, commit)) {
case commit_show:
if (show_header) {
int n = estimate_commit_count(list);
show_early_header(revs, "incomplete", n);
show_header = 0;
}
log_tree_commit(revs, commit);
i--;
break;
case commit_ignore:
break;
case commit_error:
if (close_file)
fclose(revs->diffopt.file);
return;
}
list = list->next;
}
/* Did we already get enough commits for the early output? */
if (!i) {
if (close_file)
fclose(revs->diffopt.file);
return;
}
/*
* ..if no, then repeat it twice a second until we
* do.
*
* NOTE! We don't use "it_interval", because if the
* reader isn't listening, we want our output to be
* throttled by the writing, and not have the timer
* trigger every second even if we're blocked on a
* reader!
*/
early_output_timer.it_value.tv_sec = 0;
early_output_timer.it_value.tv_usec = 500000;
setitimer(ITIMER_REAL, &early_output_timer, NULL);
}
static void early_output(int signal)
{
show_early_output = log_show_early;
}
static void setup_early_output(void)
{
struct sigaction sa;
/*
* Set up the signal handler, minimally intrusively:
* we only set a single volatile integer word (not
* using sigatomic_t - trying to avoid unnecessary
* system dependencies and headers), and using
* SA_RESTART.
*/
memset(&sa, 0, sizeof(sa));
sa.sa_handler = early_output;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sigaction(SIGALRM, &sa, NULL);
/*
* If we can get the whole output in less than a
* tenth of a second, don't even bother doing the
* early-output thing..
*
* This is a one-time-only trigger.
*/
early_output_timer.it_value.tv_sec = 0;
early_output_timer.it_value.tv_usec = 100000;
setitimer(ITIMER_REAL, &early_output_timer, NULL);
}
static void finish_early_output(struct rev_info *rev)
{
int n = estimate_commit_count(rev->commits);
signal(SIGALRM, SIG_IGN);
show_early_header(rev, "done", n);
}
static int cmd_log_walk(struct rev_info *rev)
{
struct commit *commit;
int saved_nrl = 0;
int saved_dcctc = 0, close_file = rev->diffopt.close_file;
if (rev->early_output)
setup_early_output();
if (prepare_revision_walk(rev))
die(_("revision walk setup failed"));
if (rev->early_output)
finish_early_output(rev);
/*
* For --check and --exit-code, the exit code is based on CHECK_FAILED
* and HAS_CHANGES being accumulated in rev->diffopt, so be careful to
* retain that state information if replacing rev->diffopt in this loop
*/
rev->diffopt.close_file = 0;
while ((commit = get_revision(rev)) != NULL) {
if (!log_tree_commit(rev, commit) && rev->max_count >= 0)
/*
* We decremented max_count in get_revision,
* but we didn't actually show the commit.
*/
rev->max_count++;
if (!rev->reflog_info) {
/*
* We may show a given commit multiple times when
* walking the reflogs.
*/
free_commit_buffer(the_repository->parsed_objects,
commit);
free_commit_list(commit->parents);
commit->parents = NULL;
}
if (saved_nrl < rev->diffopt.needed_rename_limit)
saved_nrl = rev->diffopt.needed_rename_limit;
if (rev->diffopt.degraded_cc_to_c)
saved_dcctc = 1;
}
rev->diffopt.degraded_cc_to_c = saved_dcctc;
rev->diffopt.needed_rename_limit = saved_nrl;
if (close_file)
fclose(rev->diffopt.file);
if (rev->diffopt.output_format & DIFF_FORMAT_CHECKDIFF &&
rev->diffopt.flags.check_failed) {
return 02;
}
return diff_result_code(&rev->diffopt, 0);
}
static int git_log_config(const char *var, const char *value, void *cb)
{
const char *slot_name;
if (!strcmp(var, "format.pretty"))
return git_config_string(&fmt_pretty, var, value);
if (!strcmp(var, "format.subjectprefix"))
return git_config_string(&fmt_patch_subject_prefix, var, value);
if (!strcmp(var, "format.encodeemailheaders")) {
default_encode_email_headers = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.abbrevcommit")) {
default_abbrev_commit = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.date"))
return git_config_string(&default_date_mode, var, value);
if (!strcmp(var, "log.decorate")) {
decoration_style = parse_decoration_style(value);
if (decoration_style < 0)
decoration_style = 0; /* maybe warn? */
return 0;
}
if (!strcmp(var, "log.showroot")) {
default_show_root = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.follow")) {
default_follow = git_config_bool(var, value);
return 0;
}
if (skip_prefix(var, "color.decorate.", &slot_name))
return parse_decorate_color_config(var, slot_name, value);
if (!strcmp(var, "log.mailmap")) {
use_mailmap_config = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.showsignature")) {
default_show_signature = git_config_bool(var, value);
return 0;
}
if (grep_config(var, value, cb) < 0)
return -1;
if (git_gpg_config(var, value, cb) < 0)
return -1;
return git_diff_ui_config(var, value, cb);
}
int cmd_whatchanged(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
struct setup_revision_opt opt;
init_log_defaults();
git_config(git_log_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
rev.diff = 1;
rev.simplify_history = 0;
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
opt.revarg_opt = REVARG_COMMITTISH;
cmd_log_init(argc, argv, prefix, &rev, &opt);
if (!rev.diffopt.output_format)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
return cmd_log_walk(&rev);
}
static void show_tagger(const char *buf, struct rev_info *rev)
{
struct strbuf out = STRBUF_INIT;
struct pretty_print_context pp = {0};
pp.fmt = rev->commit_format;
pp.date_mode = rev->date_mode;
pp_user_info(&pp, "Tagger", &out, buf, get_log_output_encoding());
fprintf(rev->diffopt.file, "%s", out.buf);
strbuf_release(&out);
}
static int show_blob_object(const struct object_id *oid, struct rev_info *rev, const char *obj_name)
{
struct object_id oidc;
struct object_context obj_context;
char *buf;
unsigned long size;
fflush(rev->diffopt.file);
if (!rev->diffopt.flags.textconv_set_via_cmdline ||
!rev->diffopt.flags.allow_textconv)
return stream_blob_to_fd(1, oid, NULL, 0);
if (get_oid_with_context(the_repository, obj_name,
GET_OID_RECORD_PATH,
&oidc, &obj_context))
die(_("not a valid object name %s"), obj_name);
if (!obj_context.path ||
!textconv_object(the_repository, obj_context.path,
obj_context.mode, &oidc, 1, &buf, &size)) {
free(obj_context.path);
return stream_blob_to_fd(1, oid, NULL, 0);
}
if (!buf)
die(_("git show %s: bad file"), obj_name);
write_or_die(1, buf, size);
free(obj_context.path);
return 0;
}
static int show_tag_object(const struct object_id *oid, struct rev_info *rev)
{
unsigned long size;
enum object_type type;
char *buf = read_object_file(oid, &type, &size);
int offset = 0;
if (!buf)
return error(_("could not read object %s"), oid_to_hex(oid));
assert(type == OBJ_TAG);
while (offset < size && buf[offset] != '\n') {
int new_offset = offset + 1;
const char *ident;
while (new_offset < size && buf[new_offset++] != '\n')
; /* do nothing */
if (skip_prefix(buf + offset, "tagger ", &ident))
show_tagger(ident, rev);
offset = new_offset;
}
if (offset < size)
fwrite(buf + offset, size - offset, 1, rev->diffopt.file);
free(buf);
return 0;
}
static int show_tree_object(const struct object_id *oid,
struct strbuf *base,
const char *pathname, unsigned mode, int stage, void *context)
{
FILE *file = context;
fprintf(file, "%s%s\n", pathname, S_ISDIR(mode) ? "/" : "");
return 0;
}
static void show_setup_revisions_tweak(struct rev_info *rev,
struct setup_revision_opt *opt)
{
if (rev->ignore_merges < 0) {
/* There was no "-m" variant on the command line */
rev->ignore_merges = 0;
if (!rev->first_parent_only && !rev->combine_merges) {
/* No "--first-parent", "-c", or "--cc" */
rev->combine_merges = 1;
rev->dense_combined_merges = 1;
}
}
if (!rev->diffopt.output_format)
rev->diffopt.output_format = DIFF_FORMAT_PATCH;
}
int cmd_show(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
struct object_array_entry *objects;
struct setup_revision_opt opt;
struct pathspec match_all;
int i, count, ret = 0;
init_log_defaults();
git_config(git_log_config, NULL);
memset(&match_all, 0, sizeof(match_all));
repo_init_revisions(the_repository, &rev, prefix);
rev.diff = 1;
rev.always_show_header = 1;
rev.no_walk = REVISION_WALK_NO_WALK_SORTED;
rev.diffopt.stat_width = -1; /* Scale to real terminal size */
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
opt.tweak = show_setup_revisions_tweak;
cmd_log_init(argc, argv, prefix, &rev, &opt);
if (!rev.no_walk)
return cmd_log_walk(&rev);
count = rev.pending.nr;
objects = rev.pending.objects;
for (i = 0; i < count && !ret; i++) {
struct object *o = objects[i].item;
const char *name = objects[i].name;
switch (o->type) {
case OBJ_BLOB:
ret = show_blob_object(&o->oid, &rev, name);
break;
case OBJ_TAG: {
struct tag *t = (struct tag *)o;
struct object_id *oid = get_tagged_oid(t);
if (rev.shown_one)
putchar('\n');
fprintf(rev.diffopt.file, "%stag %s%s\n",
diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
t->tag,
diff_get_color_opt(&rev.diffopt, DIFF_RESET));
ret = show_tag_object(&o->oid, &rev);
rev.shown_one = 1;
if (ret)
break;
o = parse_object(the_repository, oid);
if (!o)
ret = error(_("could not read object %s"),
oid_to_hex(oid));
objects[i].item = o;
i--;
break;
}
case OBJ_TREE:
if (rev.shown_one)
putchar('\n');
fprintf(rev.diffopt.file, "%stree %s%s\n\n",
diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
name,
diff_get_color_opt(&rev.diffopt, DIFF_RESET));
read_tree_recursive(the_repository, (struct tree *)o, "",
0, 0, &match_all, show_tree_object,
rev.diffopt.file);
rev.shown_one = 1;
break;
case OBJ_COMMIT:
rev.pending.nr = rev.pending.alloc = 0;
rev.pending.objects = NULL;
add_object_array(o, name, &rev.pending);
ret = cmd_log_walk(&rev);
break;
default:
ret = error(_("unknown type: %d"), o->type);
}
}
free(objects);
return ret;
}
/*
* This is equivalent to "git log -g --abbrev-commit --pretty=oneline"
*/
int cmd_log_reflog(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
struct setup_revision_opt opt;
init_log_defaults();
git_config(git_log_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
init_reflog_walk(&rev.reflog_info);
rev.verbose_header = 1;
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
cmd_log_init_defaults(&rev);
rev.abbrev_commit = 1;
rev.commit_format = CMIT_FMT_ONELINE;
rev.use_terminator = 1;
rev.always_show_header = 1;
cmd_log_init_finish(argc, argv, prefix, &rev, &opt);
return cmd_log_walk(&rev);
}
static void log_setup_revisions_tweak(struct rev_info *rev,
struct setup_revision_opt *opt)
{
if (rev->diffopt.flags.default_follow_renames &&
rev->prune_data.nr == 1)
rev->diffopt.flags.follow_renames = 1;
/* Turn --cc/-c into -p --cc/-c when -p was not given */
if (!rev->diffopt.output_format && rev->combine_merges)
rev->diffopt.output_format = DIFF_FORMAT_PATCH;
if (rev->first_parent_only && rev->ignore_merges < 0)
rev->ignore_merges = 0;
}
int cmd_log(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
struct setup_revision_opt opt;
init_log_defaults();
git_config(git_log_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
rev.always_show_header = 1;
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
opt.revarg_opt = REVARG_COMMITTISH;
opt.tweak = log_setup_revisions_tweak;
cmd_log_init(argc, argv, prefix, &rev, &opt);
return cmd_log_walk(&rev);
}
/* format-patch */
static const char *fmt_patch_suffix = ".patch";
static int numbered = 0;
static int auto_number = 1;
static char *default_attach = NULL;
static struct string_list extra_hdr = STRING_LIST_INIT_NODUP;
static struct string_list extra_to = STRING_LIST_INIT_NODUP;
static struct string_list extra_cc = STRING_LIST_INIT_NODUP;
static void add_header(const char *value)
{
struct string_list_item *item;
int len = strlen(value);
while (len && value[len - 1] == '\n')
len--;
if (!strncasecmp(value, "to: ", 4)) {
item = string_list_append(&extra_to, value + 4);
len -= 4;
} else if (!strncasecmp(value, "cc: ", 4)) {
item = string_list_append(&extra_cc, value + 4);
len -= 4;
} else {
item = string_list_append(&extra_hdr, value);
}
item->string[len] = '\0';
}
enum cover_setting {
COVER_UNSET,
COVER_OFF,
COVER_ON,
COVER_AUTO
};
enum thread_level {
THREAD_UNSET,
THREAD_SHALLOW,
THREAD_DEEP
};
enum cover_from_description {
COVER_FROM_NONE,
COVER_FROM_MESSAGE,
COVER_FROM_SUBJECT,
COVER_FROM_AUTO
};
static enum thread_level thread;
static int do_signoff;
static int base_auto;
static char *from;
static const char *signature = git_version_string;
static const char *signature_file;
static enum cover_setting config_cover_letter;
static const char *config_output_directory;
static enum cover_from_description cover_from_description_mode = COVER_FROM_MESSAGE;
static int show_notes;
static struct display_notes_opt notes_opt;
static enum cover_from_description parse_cover_from_description(const char *arg)
{
if (!arg || !strcmp(arg, "default"))
return COVER_FROM_MESSAGE;
else if (!strcmp(arg, "none"))
return COVER_FROM_NONE;
else if (!strcmp(arg, "message"))
return COVER_FROM_MESSAGE;
else if (!strcmp(arg, "subject"))
return COVER_FROM_SUBJECT;
else if (!strcmp(arg, "auto"))
return COVER_FROM_AUTO;
else
die(_("%s: invalid cover from description mode"), arg);
}
static int git_format_config(const char *var, const char *value, void *cb)
{
if (!strcmp(var, "format.headers")) {
if (!value)
die(_("format.headers without value"));
add_header(value);
return 0;
}
if (!strcmp(var, "format.suffix"))
return git_config_string(&fmt_patch_suffix, var, value);
if (!strcmp(var, "format.to")) {
if (!value)
return config_error_nonbool(var);
string_list_append(&extra_to, value);
return 0;
}
if (!strcmp(var, "format.cc")) {
if (!value)
return config_error_nonbool(var);
string_list_append(&extra_cc, value);
return 0;
}
if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff") ||
!strcmp(var, "color.ui") || !strcmp(var, "diff.submodule")) {
return 0;
}
if (!strcmp(var, "format.numbered")) {
if (value && !strcasecmp(value, "auto")) {
auto_number = 1;
return 0;
}
numbered = git_config_bool(var, value);
auto_number = auto_number && numbered;
return 0;
}
if (!strcmp(var, "format.attach")) {
if (value && *value)
default_attach = xstrdup(value);
else
default_attach = xstrdup(git_version_string);
return 0;
}
if (!strcmp(var, "format.thread")) {
if (value && !strcasecmp(value, "deep")) {
thread = THREAD_DEEP;
return 0;
}
if (value && !strcasecmp(value, "shallow")) {
thread = THREAD_SHALLOW;
return 0;
}
thread = git_config_bool(var, value) ? THREAD_SHALLOW : THREAD_UNSET;
return 0;
}
if (!strcmp(var, "format.signoff")) {
do_signoff = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "format.signature"))
return git_config_string(&signature, var, value);
if (!strcmp(var, "format.signaturefile"))
return git_config_pathname(&signature_file, var, value);
if (!strcmp(var, "format.coverletter")) {
if (value && !strcasecmp(value, "auto")) {
config_cover_letter = COVER_AUTO;
return 0;
}
config_cover_letter = git_config_bool(var, value) ? COVER_ON : COVER_OFF;
return 0;
}
if (!strcmp(var, "format.outputdirectory"))
return git_config_string(&config_output_directory, var, value);
if (!strcmp(var, "format.useautobase")) {
base_auto = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "format.from")) {
int b = git_parse_maybe_bool(value);
free(from);
if (b < 0)
from = xstrdup(value);
else if (b)
from = xstrdup(git_committer_info(IDENT_NO_DATE));
else
from = NULL;
return 0;
}
if (!strcmp(var, "format.notes")) {
int b = git_parse_maybe_bool(value);
if (b < 0)
enable_ref_display_notes(&notes_opt, &show_notes, value);
else if (b)
enable_default_display_notes(&notes_opt, &show_notes);
else
disable_display_notes(&notes_opt, &show_notes);
return 0;
}
if (!strcmp(var, "format.coverfromdescription")) {
cover_from_description_mode = parse_cover_from_description(value);
return 0;
}
return git_log_config(var, value, cb);
}
static const char *output_directory = NULL;
static int outdir_offset;
static int open_next_file(struct commit *commit, const char *subject,
struct rev_info *rev, int quiet)
{
struct strbuf filename = STRBUF_INIT;
int suffix_len = strlen(rev->patch_suffix) + 1;
if (output_directory) {
strbuf_addstr(&filename, output_directory);
if (filename.len >=
PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) {
strbuf_release(&filename);
return error(_("name of output directory is too long"));
}
strbuf_complete(&filename, '/');
}
if (rev->numbered_files)
strbuf_addf(&filename, "%d", rev->nr);
else if (commit)
fmt_output_commit(&filename, commit, rev);
else
fmt_output_subject(&filename, subject, rev);
if (!quiet)
printf("%s\n", filename.buf + outdir_offset);
if ((rev->diffopt.file = fopen(filename.buf, "w")) == NULL) {
error_errno(_("cannot open patch file %s"), filename.buf);
strbuf_release(&filename);
return -1;
}
strbuf_release(&filename);
return 0;
}
static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
{
struct rev_info check_rev;
struct commit *commit, *c1, *c2;
struct object *o1, *o2;
unsigned flags1, flags2;
if (rev->pending.nr != 2)
die(_("need exactly one range"));
o1 = rev->pending.objects[0].item;
o2 = rev->pending.objects[1].item;
flags1 = o1->flags;
flags2 = o2->flags;
c1 = lookup_commit_reference(the_repository, &o1->oid);
c2 = lookup_commit_reference(the_repository, &o2->oid);
if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING))
die(_("not a range"));
init_patch_ids(the_repository, ids);
/* given a range a..b get all patch ids for b..a */
repo_init_revisions(the_repository, &check_rev, rev->prefix);
check_rev.max_parents = 1;
o1->flags ^= UNINTERESTING;
o2->flags ^= UNINTERESTING;
add_pending_object(&check_rev, o1, "o1");
add_pending_object(&check_rev, o2, "o2");
if (prepare_revision_walk(&check_rev))
die(_("revision walk setup failed"));
while ((commit = get_revision(&check_rev)) != NULL) {
add_commit_patch_id(commit, ids);
}
/* reset for next revision walk */
clear_commit_marks(c1, SEEN | UNINTERESTING | SHOWN | ADDED);
clear_commit_marks(c2, SEEN | UNINTERESTING | SHOWN | ADDED);
o1->flags = flags1;
o2->flags = flags2;
}
static void gen_message_id(struct rev_info *info, char *base)
{
struct strbuf buf = STRBUF_INIT;
strbuf_addf(&buf, "%s.%"PRItime".git.%s", base,
(timestamp_t) time(NULL),
git_committer_info(IDENT_NO_NAME|IDENT_NO_DATE|IDENT_STRICT));
info->message_id = strbuf_detach(&buf, NULL);
}
static void print_signature(FILE *file)
{
if (!signature || !*signature)
return;
fprintf(file, "-- \n%s", signature);
if (signature[strlen(signature)-1] != '\n')
putc('\n', file);
putc('\n', file);
}
static char *find_branch_name(struct rev_info *rev)
{
int i, positive = -1;
struct object_id branch_oid;
const struct object_id *tip_oid;
const char *ref, *v;
char *full_ref, *branch = NULL;
for (i = 0; i < rev->cmdline.nr; i++) {
if (rev->cmdline.rev[i].flags & UNINTERESTING)
continue;
if (positive < 0)
positive = i;
else
return NULL;
}
if (positive < 0)
return NULL;
ref = rev->cmdline.rev[positive].name;
tip_oid = &rev->cmdline.rev[positive].item->oid;
if (dwim_ref(ref, strlen(ref), &branch_oid, &full_ref) &&
skip_prefix(full_ref, "refs/heads/", &v) &&
oideq(tip_oid, &branch_oid))
branch = xstrdup(v);
free(full_ref);
return branch;
}
static void show_diffstat(struct rev_info *rev,
struct commit *origin, struct commit *head)
{
struct diff_options opts;
memcpy(&opts, &rev->diffopt, sizeof(opts));
opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
diff_setup_done(&opts);
diff_tree_oid(get_commit_tree_oid(origin),
get_commit_tree_oid(head),
"", &opts);
diffcore_std(&opts);
diff_flush(&opts);
fprintf(rev->diffopt.file, "\n");
}
static void prepare_cover_text(struct pretty_print_context *pp,
const char *branch_name,
struct strbuf *sb,
const char *encoding,
int need_8bit_cte)
{
const char *subject = "*** SUBJECT HERE ***";
const char *body = "*** BLURB HERE ***";
struct strbuf description_sb = STRBUF_INIT;
struct strbuf subject_sb = STRBUF_INIT;
if (cover_from_description_mode == COVER_FROM_NONE)
goto do_pp;
if (branch_name && *branch_name)
read_branch_desc(&description_sb, branch_name);
if (!description_sb.len)
goto do_pp;
if (cover_from_description_mode == COVER_FROM_SUBJECT ||
cover_from_description_mode == COVER_FROM_AUTO)
body = format_subject(&subject_sb, description_sb.buf, " ");
if (cover_from_description_mode == COVER_FROM_MESSAGE ||
(cover_from_description_mode == COVER_FROM_AUTO &&
subject_sb.len > COVER_FROM_AUTO_MAX_SUBJECT_LEN))
body = description_sb.buf;
else
subject = subject_sb.buf;
do_pp:
pp_title_line(pp, &subject, sb, encoding, need_8bit_cte);
pp_remainder(pp, &body, sb, 0);
strbuf_release(&description_sb);
strbuf_release(&subject_sb);
}
static int get_notes_refs(struct string_list_item *item, void *arg)
{
strvec_pushf(arg, "--notes=%s", item->string);
return 0;
}
static void get_notes_args(struct strvec *arg, struct rev_info *rev)
{
if (!rev->show_notes) {
strvec_push(arg, "--no-notes");
} else if (rev->notes_opt.use_default_notes > 0 ||
(rev->notes_opt.use_default_notes == -1 &&
!rev->notes_opt.extra_notes_refs.nr)) {
strvec_push(arg, "--notes");
} else {
for_each_string_list(&rev->notes_opt.extra_notes_refs, get_notes_refs, arg);
}
}
static void make_cover_letter(struct rev_info *rev, int use_stdout,
struct commit *origin,
int nr, struct commit **list,
const char *branch_name,
int quiet)
{
const char *committer;
struct shortlog log;
struct strbuf sb = STRBUF_INIT;
int i;
const char *encoding = "UTF-8";
int need_8bit_cte = 0;
struct pretty_print_context pp = {0};
struct commit *head = list[0];
if (!cmit_fmt_is_mail(rev->commit_format))
die(_("cover letter needs email format"));
committer = git_committer_info(0);
if (!use_stdout &&
open_next_file(NULL, rev->numbered_files ? NULL : "cover-letter", rev, quiet))
die(_("failed to create cover-letter file"));
log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte, 0);
for (i = 0; !need_8bit_cte && i < nr; i++) {
const char *buf = get_commit_buffer(list[i], NULL);
if (has_non_ascii(buf))
need_8bit_cte = 1;
unuse_commit_buffer(list[i], buf);
}
if (!branch_name)
branch_name = find_branch_name(rev);
pp.fmt = CMIT_FMT_EMAIL;
pp.date_mode.type = DATE_RFC2822;
pp.rev = rev;
pp.print_email_subject = 1;
pp_user_info(&pp, NULL, &sb, committer, encoding);
prepare_cover_text(&pp, branch_name, &sb, encoding, need_8bit_cte);
fprintf(rev->diffopt.file, "%s\n", sb.buf);
strbuf_release(&sb);
shortlog_init(&log);
log.wrap_lines = 1;
log.wrap = MAIL_DEFAULT_WRAP;
log.in1 = 2;
log.in2 = 4;
log.file = rev->diffopt.file;
for (i = 0; i < nr; i++)
shortlog_add_commit(&log, list[i]);
shortlog_output(&log);
/* We can only do diffstat with a unique reference point */
if (origin)
show_diffstat(rev, origin, head);
if (rev->idiff_oid1) {
fprintf_ln(rev->diffopt.file, "%s", rev->idiff_title);
show_interdiff(rev, 0);
}
if (rev->rdiff1) {
/*
* Pass minimum required diff-options to range-diff; others
* can be added later if deemed desirable.
*/
struct diff_options opts;
struct strvec other_arg = STRVEC_INIT;
diff_setup(&opts);
opts.file = rev->diffopt.file;
opts.use_color = rev->diffopt.use_color;
diff_setup_done(&opts);
fprintf_ln(rev->diffopt.file, "%s", rev->rdiff_title);
get_notes_args(&other_arg, rev);
show_range_diff(rev->rdiff1, rev->rdiff2,
rev->creation_factor, 1, &opts, &other_arg);
strvec_clear(&other_arg);
}
}
static const char *clean_message_id(const char *msg_id)
{
char ch;
const char *a, *z, *m;
m = msg_id;
while ((ch = *m) && (isspace(ch) || (ch == '<')))
m++;
a = m;
z = NULL;
while ((ch = *m)) {
if (!isspace(ch) && (ch != '>'))
z = m;
m++;
}
if (!z)
die(_("insane in-reply-to: %s"), msg_id);
if (++z == m)
return a;
return xmemdupz(a, z - a);
}
static const char *set_outdir(const char *prefix, const char *output_directory)
{
if (output_directory && is_absolute_path(output_directory))
return output_directory;
if (!prefix || !*prefix) {
if (output_directory)
return output_directory;
/* The user did not explicitly ask for "./" */
outdir_offset = 2;
return "./";
}
outdir_offset = strlen(prefix);
if (!output_directory)
return prefix;
return prefix_filename(prefix, output_directory);
}
static const char * const builtin_format_patch_usage[] = {
N_("git format-patch [<options>] [<since> | <revision-range>]"),
NULL
};
static int keep_subject = 0;
static int keep_callback(const struct option *opt, const char *arg, int unset)
{
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
((struct rev_info *)opt->value)->total = -1;
keep_subject = 1;
return 0;
}
static int subject_prefix = 0;
static int subject_prefix_callback(const struct option *opt, const char *arg,
int unset)
{
BUG_ON_OPT_NEG(unset);
subject_prefix = 1;
((struct rev_info *)opt->value)->subject_prefix = arg;
return 0;
}
static int rfc_callback(const struct option *opt, const char *arg, int unset)
{
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
return subject_prefix_callback(opt, "RFC PATCH", unset);
}
static int numbered_cmdline_opt = 0;
static int numbered_callback(const struct option *opt, const char *arg,
int unset)
{
BUG_ON_OPT_ARG(arg);
*(int *)opt->value = numbered_cmdline_opt = unset ? 0 : 1;
if (unset)
auto_number = 0;
return 0;
}
static int no_numbered_callback(const struct option *opt, const char *arg,
int unset)
{
BUG_ON_OPT_NEG(unset);
return numbered_callback(opt, arg, 1);
}
static int output_directory_callback(const struct option *opt, const char *arg,
int unset)
{
const char **dir = (const char **)opt->value;
BUG_ON_OPT_NEG(unset);
if (*dir)
die(_("two output directories?"));
*dir = arg;
return 0;
}
static int thread_callback(const struct option *opt, const char *arg, int unset)
{
enum thread_level *thread = (enum thread_level *)opt->value;
if (unset)
*thread = THREAD_UNSET;
else if (!arg || !strcmp(arg, "shallow"))
*thread = THREAD_SHALLOW;
else if (!strcmp(arg, "deep"))
*thread = THREAD_DEEP;
/*
* Please update _git_formatpatch() in git-completion.bash
* when you add new options.
*/
else
return 1;
return 0;
}
static int attach_callback(const struct option *opt, const char *arg, int unset)
{
struct rev_info *rev = (struct rev_info *)opt->value;
if (unset)
rev->mime_boundary = NULL;
else if (arg)
rev->mime_boundary = arg;
else
rev->mime_boundary = git_version_string;
rev->no_inline = unset ? 0 : 1;
return 0;
}
static int inline_callback(const struct option *opt, const char *arg, int unset)
{
struct rev_info *rev = (struct rev_info *)opt->value;
if (unset)
rev->mime_boundary = NULL;
else if (arg)
rev->mime_boundary = arg;
else
rev->mime_boundary = git_version_string;
rev->no_inline = 0;
return 0;
}
static int header_callback(const struct option *opt, const char *arg, int unset)
{
if (unset) {
string_list_clear(&extra_hdr, 0);
string_list_clear(&extra_to, 0);
string_list_clear(&extra_cc, 0);
} else {
add_header(arg);
}
return 0;
}
static int to_callback(const struct option *opt, const char *arg, int unset)
{
if (unset)
string_list_clear(&extra_to, 0);
else
string_list_append(&extra_to, arg);
return 0;
}
static int cc_callback(const struct option *opt, const char *arg, int unset)
{
if (unset)
string_list_clear(&extra_cc, 0);
else
string_list_append(&extra_cc, arg);
return 0;
}
static int from_callback(const struct option *opt, const char *arg, int unset)
{
char **from = opt->value;
free(*from);
if (unset)
*from = NULL;
else if (arg)
*from = xstrdup(arg);
else
*from = xstrdup(git_committer_info(IDENT_NO_DATE));
return 0;
}
struct base_tree_info {
struct object_id base_commit;
int nr_patch_id, alloc_patch_id;
struct object_id *patch_id;
};
static struct commit *get_base_commit(const char *base_commit,
struct commit **list,
int total)
{
struct commit *base = NULL;
struct commit **rev;
int i = 0, rev_nr = 0;
if (base_commit && strcmp(base_commit, "auto")) {
base = lookup_commit_reference_by_name(base_commit);
if (!base)
die(_("unknown commit %s"), base_commit);
} else if ((base_commit && !strcmp(base_commit, "auto"))) {
struct branch *curr_branch = branch_get(NULL);
const char *upstream = branch_get_upstream(curr_branch, NULL);
if (upstream) {
struct commit_list *base_list;
struct commit *commit;
struct object_id oid;
if (get_oid(upstream, &oid))
die(_("failed to resolve '%s' as a valid ref"), upstream);
commit = lookup_commit_or_die(&oid, "upstream base");
base_list = get_merge_bases_many(commit, total, list);
/* There should be one and only one merge base. */
if (!base_list || base_list->next)
die(_("could not find exact merge base"));
base = base_list->item;
free_commit_list(base_list);
} else {
die(_("failed to get upstream, if you want to record base commit automatically,\n"
"please use git branch --set-upstream-to to track a remote branch.\n"
"Or you could specify base commit by --base=<base-commit-id> manually"));
}
}
ALLOC_ARRAY(rev, total);
for (i = 0; i < total; i++)
rev[i] = list[i];
rev_nr = total;
/*
* Get merge base through pair-wise computations
* and store it in rev[0].
*/
while (rev_nr > 1) {
for (i = 0; i < rev_nr / 2; i++) {
struct commit_list *merge_base;
merge_base = get_merge_bases(rev[2 * i], rev[2 * i + 1]);
if (!merge_base || merge_base->next)
die(_("failed to find exact merge base"));
rev[i] = merge_base->item;
}
if (rev_nr % 2)
rev[i] = rev[2 * i];
rev_nr = DIV_ROUND_UP(rev_nr, 2);
}
if (!in_merge_bases(base, rev[0]))
die(_("base commit should be the ancestor of revision list"));
for (i = 0; i < total; i++) {
if (base == list[i])
die(_("base commit shouldn't be in revision list"));
}
free(rev);
return base;
}
define_commit_slab(commit_base, int);
static void prepare_bases(struct base_tree_info *bases,
struct commit *base,
struct commit **list,
int total)
{
struct commit *commit;
struct rev_info revs;
struct diff_options diffopt;
struct commit_base commit_base;
int i;
if (!base)
return;
init_commit_base(&commit_base);
repo_diff_setup(the_repository, &diffopt);
diffopt.flags.recursive = 1;
diff_setup_done(&diffopt);
oidcpy(&bases->base_commit, &base->object.oid);
repo_init_revisions(the_repository, &revs, NULL);
revs.max_parents = 1;
revs.topo_order = 1;
for (i = 0; i < total; i++) {
list[i]->object.flags &= ~UNINTERESTING;
add_pending_object(&revs, &list[i]->object, "rev_list");
*commit_base_at(&commit_base, list[i]) = 1;
}
base->object.flags |= UNINTERESTING;
add_pending_object(&revs, &base->object, "base");
if (prepare_revision_walk(&revs))
die(_("revision walk setup failed"));
/*
* Traverse the commits list, get prerequisite patch ids
* and stuff them in bases structure.
*/
while ((commit = get_revision(&revs)) != NULL) {
struct object_id oid;
struct object_id *patch_id;
if (*commit_base_at(&commit_base, commit))
continue;
if (commit_patch_id(commit, &diffopt, &oid, 0, 1))
die(_("cannot get patch id"));
ALLOC_GROW(bases->patch_id, bases->nr_patch_id + 1, bases->alloc_patch_id);
patch_id = bases->patch_id + bases->nr_patch_id;
oidcpy(patch_id, &oid);
bases->nr_patch_id++;
}
clear_commit_base(&commit_base);
}
static void print_bases(struct base_tree_info *bases, FILE *file)
{
int i;
/* Only do this once, either for the cover or for the first one */
if (is_null_oid(&bases->base_commit))
return;
/* Show the base commit */
fprintf(file, "\nbase-commit: %s\n", oid_to_hex(&bases->base_commit));
/* Show the prerequisite patches */
for (i = bases->nr_patch_id - 1; i >= 0; i--)
fprintf(file, "prerequisite-patch-id: %s\n", oid_to_hex(&bases->patch_id[i]));
free(bases->patch_id);
bases->nr_patch_id = 0;
bases->alloc_patch_id = 0;
oidclr(&bases->base_commit);
}
static const char *diff_title(struct strbuf *sb, int reroll_count,
const char *generic, const char *rerolled)
{
if (reroll_count <= 0)
strbuf_addstr(sb, generic);
else /* RFC may be v0, so allow -v1 to diff against v0 */
strbuf_addf(sb, rerolled, reroll_count - 1);
return sb->buf;
}
static void infer_range_diff_ranges(struct strbuf *r1,
struct strbuf *r2,
const char *prev,
struct commit *origin,
struct commit *head)
{
const char *head_oid = oid_to_hex(&head->object.oid);
if (!strstr(prev, "..")) {
strbuf_addf(r1, "%s..%s", head_oid, prev);
strbuf_addf(r2, "%s..%s", prev, head_oid);
} else if (!origin) {
die(_("failed to infer range-diff ranges"));
} else {
strbuf_addstr(r1, prev);
strbuf_addf(r2, "%s..%s",
oid_to_hex(&origin->object.oid), head_oid);
}
}
int cmd_format_patch(int argc, const char **argv, const char *prefix)
{
struct commit *commit;
struct commit **list = NULL;
struct rev_info rev;
struct setup_revision_opt s_r_opt;
int nr = 0, total, i;
int use_stdout = 0;
int start_number = -1;
int just_numbers = 0;
int ignore_if_in_upstream = 0;
int cover_letter = -1;
int boundary_count = 0;
int no_binary_diff = 0;
int zero_commit = 0;
struct commit *origin = NULL;
const char *in_reply_to = NULL;
struct patch_ids ids;
struct strbuf buf = STRBUF_INIT;
int use_patch_format = 0;
int quiet = 0;
int reroll_count = -1;
char *cover_from_description_arg = NULL;
char *branch_name = NULL;
char *base_commit = NULL;
struct base_tree_info bases;
int show_progress = 0;
struct progress *progress = NULL;
struct oid_array idiff_prev = OID_ARRAY_INIT;
struct strbuf idiff_title = STRBUF_INIT;
const char *rdiff_prev = NULL;
struct strbuf rdiff1 = STRBUF_INIT;
struct strbuf rdiff2 = STRBUF_INIT;
struct strbuf rdiff_title = STRBUF_INIT;
int creation_factor = -1;
const struct option builtin_format_patch_options[] = {
OPT_CALLBACK_F('n', "numbered", &numbered, NULL,
N_("use [PATCH n/m] even with a single patch"),
PARSE_OPT_NOARG, numbered_callback),
OPT_CALLBACK_F('N', "no-numbered", &numbered, NULL,
N_("use [PATCH] even with multiple patches"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, no_numbered_callback),
OPT_BOOL('s', "signoff", &do_signoff, N_("add Signed-off-by:")),
OPT_BOOL(0, "stdout", &use_stdout,
N_("print patches to standard out")),
OPT_BOOL(0, "cover-letter", &cover_letter,
N_("generate a cover letter")),
OPT_BOOL(0, "numbered-files", &just_numbers,
N_("use simple number sequence for output file names")),
OPT_STRING(0, "suffix", &fmt_patch_suffix, N_("sfx"),
N_("use <sfx> instead of '.patch'")),
OPT_INTEGER(0, "start-number", &start_number,
N_("start numbering patches at <n> instead of 1")),
OPT_INTEGER('v', "reroll-count", &reroll_count,
N_("mark the series as Nth re-roll")),
OPT_CALLBACK_F(0, "rfc", &rev, NULL,
N_("Use [RFC PATCH] instead of [PATCH]"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, rfc_callback),
OPT_STRING(0, "cover-from-description", &cover_from_description_arg,
N_("cover-from-description-mode"),
N_("generate parts of a cover letter based on a branch's description")),
OPT_CALLBACK_F(0, "subject-prefix", &rev, N_("prefix"),
N_("Use [<prefix>] instead of [PATCH]"),
PARSE_OPT_NONEG, subject_prefix_callback),
OPT_CALLBACK_F('o', "output-directory", &output_directory,
N_("dir"), N_("store resulting files in <dir>"),
PARSE_OPT_NONEG, output_directory_callback),
OPT_CALLBACK_F('k', "keep-subject", &rev, NULL,
N_("don't strip/add [PATCH]"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, keep_callback),
OPT_BOOL(0, "no-binary", &no_binary_diff,
N_("don't output binary diffs")),
OPT_BOOL(0, "zero-commit", &zero_commit,
N_("output all-zero hash in From header")),
OPT_BOOL(0, "ignore-if-in-upstream", &ignore_if_in_upstream,
N_("don't include a patch matching a commit upstream")),
OPT_SET_INT_F('p', "no-stat", &use_patch_format,
N_("show patch format instead of default (patch + stat)"),
1, PARSE_OPT_NONEG),
OPT_GROUP(N_("Messaging")),
OPT_CALLBACK(0, "add-header", NULL, N_("header"),
N_("add email header"), header_callback),
OPT_CALLBACK(0, "to", NULL, N_("email"), N_("add To: header"), to_callback),
OPT_CALLBACK(0, "cc", NULL, N_("email"), N_("add Cc: header"), cc_callback),
OPT_CALLBACK_F(0, "from", &from, N_("ident"),
N_("set From address to <ident> (or committer ident if absent)"),
PARSE_OPT_OPTARG, from_callback),
OPT_STRING(0, "in-reply-to", &in_reply_to, N_("message-id"),
N_("make first mail a reply to <message-id>")),
OPT_CALLBACK_F(0, "attach", &rev, N_("boundary"),
N_("attach the patch"), PARSE_OPT_OPTARG,
attach_callback),
OPT_CALLBACK_F(0, "inline", &rev, N_("boundary"),
N_("inline the patch"),
PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
inline_callback),
OPT_CALLBACK_F(0, "thread", &thread, N_("style"),
N_("enable message threading, styles: shallow, deep"),
PARSE_OPT_OPTARG, thread_callback),
OPT_STRING(0, "signature", &signature, N_("signature"),
N_("add a signature")),
OPT_STRING(0, "base", &base_commit, N_("base-commit"),
N_("add prerequisite tree info to the patch series")),
OPT_FILENAME(0, "signature-file", &signature_file,
N_("add a signature from a file")),
OPT__QUIET(&quiet, N_("don't print the patch filenames")),
OPT_BOOL(0, "progress", &show_progress,
N_("show progress while generating patches")),
OPT_CALLBACK(0, "interdiff", &idiff_prev, N_("rev"),
N_("show changes against <rev> in cover letter or single patch"),
parse_opt_object_name),
OPT_STRING(0, "range-diff", &rdiff_prev, N_("refspec"),
N_("show changes against <refspec> in cover letter or single patch")),
OPT_INTEGER(0, "creation-factor", &creation_factor,
N_("percentage by which creation is weighted")),
OPT_END()
};
extra_hdr.strdup_strings = 1;
extra_to.strdup_strings = 1;
extra_cc.strdup_strings = 1;
init_log_defaults();
init_display_notes(&notes_opt);
git_config(git_format_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
rev.show_notes = show_notes;
memcpy(&rev.notes_opt, &notes_opt, sizeof(notes_opt));
rev.commit_format = CMIT_FMT_EMAIL;
rev.encode_email_headers = default_encode_email_headers;
rev.expand_tabs_in_log_default = 0;
rev.verbose_header = 1;
rev.diff = 1;
rev.max_parents = 1;
rev.diffopt.flags.recursive = 1;
rev.subject_prefix = fmt_patch_subject_prefix;
memset(&s_r_opt, 0, sizeof(s_r_opt));
s_r_opt.def = "HEAD";
s_r_opt.revarg_opt = REVARG_COMMITTISH;
if (base_auto)
base_commit = "auto";
if (default_attach) {
rev.mime_boundary = default_attach;
rev.no_inline = 1;
}
/*
* Parse the arguments before setup_revisions(), or something
* like "git format-patch -o a123 HEAD^.." may fail; a123 is
* possibly a valid SHA1.
*/
argc = parse_options(argc, argv, prefix, builtin_format_patch_options,
builtin_format_patch_usage,
PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN |
PARSE_OPT_KEEP_DASHDASH);
if (cover_from_description_arg)
cover_from_description_mode = parse_cover_from_description(cover_from_description_arg);
if (0 < reroll_count) {
struct strbuf sprefix = STRBUF_INIT;
strbuf_addf(&sprefix, "%s v%d",
rev.subject_prefix, reroll_count);
rev.reroll_count = reroll_count;
rev.subject_prefix = strbuf_detach(&sprefix, NULL);
}
for (i = 0; i < extra_hdr.nr; i++) {
strbuf_addstr(&buf, extra_hdr.items[i].string);
strbuf_addch(&buf, '\n');
}
if (extra_to.nr)
strbuf_addstr(&buf, "To: ");
for (i = 0; i < extra_to.nr; i++) {
if (i)
strbuf_addstr(&buf, " ");
strbuf_addstr(&buf, extra_to.items[i].string);
if (i + 1 < extra_to.nr)
strbuf_addch(&buf, ',');
strbuf_addch(&buf, '\n');
}
if (extra_cc.nr)
strbuf_addstr(&buf, "Cc: ");
for (i = 0; i < extra_cc.nr; i++) {
if (i)
strbuf_addstr(&buf, " ");
strbuf_addstr(&buf, extra_cc.items[i].string);
if (i + 1 < extra_cc.nr)
strbuf_addch(&buf, ',');
strbuf_addch(&buf, '\n');
}
rev.extra_headers = strbuf_detach(&buf, NULL);
if (from) {
if (split_ident_line(&rev.from_ident, from, strlen(from)))
die(_("invalid ident line: %s"), from);
}
if (start_number < 0)
start_number = 1;
/*
* If numbered is set solely due to format.numbered in config,
* and it would conflict with --keep-subject (-k) from the
* command line, reset "numbered".
*/
if (numbered && keep_subject && !numbered_cmdline_opt)
numbered = 0;
if (numbered && keep_subject)
die(_("-n and -k are mutually exclusive"));
if (keep_subject && subject_prefix)
die(_("--subject-prefix/--rfc and -k are mutually exclusive"));
rev.preserve_subject = keep_subject;
argc = setup_revisions(argc, argv, &rev, &s_r_opt);
if (argc > 1)
die(_("unrecognized argument: %s"), argv[1]);
if (rev.diffopt.output_format & DIFF_FORMAT_NAME)
die(_("--name-only does not make sense"));
if (rev.diffopt.output_format & DIFF_FORMAT_NAME_STATUS)
die(_("--name-status does not make sense"));
if (rev.diffopt.output_format & DIFF_FORMAT_CHECKDIFF)
die(_("--check does not make sense"));
if (!use_patch_format &&
(!rev.diffopt.output_format ||
rev.diffopt.output_format == DIFF_FORMAT_PATCH))
rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY;
if (!rev.diffopt.stat_width)
rev.diffopt.stat_width = MAIL_DEFAULT_WRAP;
/* Always generate a patch */
rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
rev.zero_commit = zero_commit;
if (!rev.diffopt.flags.text && !no_binary_diff)
rev.diffopt.flags.binary = 1;
if (rev.show_notes)
load_display_notes(&rev.notes_opt);
if (!output_directory && !use_stdout)
output_directory = config_output_directory;
if (!use_stdout)
output_directory = set_outdir(prefix, output_directory);
else
setup_pager();
if (output_directory) {
int saved;
if (rev.diffopt.use_color != GIT_COLOR_ALWAYS)
rev.diffopt.use_color = GIT_COLOR_NEVER;
if (use_stdout)
die(_("standard output, or directory, which one?"));
/*
* We consider <outdir> as 'outside of gitdir', therefore avoid
* applying adjust_shared_perm in s-c-l-d.
*/
saved = get_shared_repository();
set_shared_repository(0);
switch (safe_create_leading_directories_const(output_directory)) {
case SCLD_OK:
case SCLD_EXISTS:
break;
default:
die(_("could not create leading directories "
"of '%s'"), output_directory);
}
set_shared_repository(saved);
if (mkdir(output_directory, 0777) < 0 && errno != EEXIST)
die_errno(_("could not create directory '%s'"),
output_directory);
}
if (rev.pending.nr == 1) {
int check_head = 0;
if (rev.max_count < 0 && !rev.show_root_diff) {
/*
* This is traditional behaviour of "git format-patch
* origin" that prepares what the origin side still
* does not have.
*/
rev.pending.objects[0].item->flags |= UNINTERESTING;
add_head_to_pending(&rev);
check_head = 1;
}
/*
* Otherwise, it is "format-patch -22 HEAD", and/or
* "format-patch --root HEAD". The user wants
* get_revision() to do the usual traversal.
*/
if (!strcmp(rev.pending.objects[0].name, "HEAD"))
check_head = 1;
if (check_head) {
const char *ref, *v;
ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
NULL, NULL);
if (ref && skip_prefix(ref, "refs/heads/", &v))
branch_name = xstrdup(v);
else
branch_name = xstrdup(""); /* no branch */
}
}
/*
* We cannot move this anywhere earlier because we do want to
* know if --root was given explicitly from the command line.
*/
rev.show_root_diff = 1;
if (ignore_if_in_upstream) {
/* Don't say anything if head and upstream are the same. */
if (rev.pending.nr == 2) {
struct object_array_entry *o = rev.pending.objects;
if (oideq(&o[0].item->oid, &o[1].item->oid))
goto done;
}
get_patch_ids(&rev, &ids);
}
if (prepare_revision_walk(&rev))
die(_("revision walk setup failed"));
rev.boundary = 1;
while ((commit = get_revision(&rev)) != NULL) {
if (commit->object.flags & BOUNDARY) {
boundary_count++;
origin = (boundary_count == 1) ? commit : NULL;
continue;
}
if (ignore_if_in_upstream && has_commit_patch_id(commit, &ids))
continue;
nr++;
REALLOC_ARRAY(list, nr);
list[nr - 1] = commit;
}
if (nr == 0)
/* nothing to do */
goto done;
total = nr;
if (cover_letter == -1) {
if (config_cover_letter == COVER_AUTO)
cover_letter = (total > 1);
else
cover_letter = (config_cover_letter == COVER_ON);
}
if (!keep_subject && auto_number && (total > 1 || cover_letter))
numbered = 1;
if (numbered)
rev.total = total + start_number - 1;
if (idiff_prev.nr) {
if (!cover_letter && total != 1)
die(_("--interdiff requires --cover-letter or single patch"));
rev.idiff_oid1 = &idiff_prev.oid[idiff_prev.nr - 1];
rev.idiff_oid2 = get_commit_tree_oid(list[0]);
rev.idiff_title = diff_title(&idiff_title, reroll_count,
_("Interdiff:"),
_("Interdiff against v%d:"));
}
if (creation_factor < 0)
creation_factor = RANGE_DIFF_CREATION_FACTOR_DEFAULT;
else if (!rdiff_prev)
die(_("--creation-factor requires --range-diff"));
if (rdiff_prev) {
if (!cover_letter && total != 1)
die(_("--range-diff requires --cover-letter or single patch"));
infer_range_diff_ranges(&rdiff1, &rdiff2, rdiff_prev,
origin, list[0]);
rev.rdiff1 = rdiff1.buf;
rev.rdiff2 = rdiff2.buf;
rev.creation_factor = creation_factor;
rev.rdiff_title = diff_title(&rdiff_title, reroll_count,
_("Range-diff:"),
_("Range-diff against v%d:"));
}
if (!signature) {
; /* --no-signature inhibits all signatures */
} else if (signature && signature != git_version_string) {
; /* non-default signature already set */
} else if (signature_file) {
struct strbuf buf = STRBUF_INIT;
if (strbuf_read_file(&buf, signature_file, 128) < 0)
die_errno(_("unable to read signature file '%s'"), signature_file);
signature = strbuf_detach(&buf, NULL);
}
memset(&bases, 0, sizeof(bases));
if (base_commit) {
struct commit *base = get_base_commit(base_commit, list, nr);
reset_revision_walk();
clear_object_flags(UNINTERESTING);
prepare_bases(&bases, base, list, nr);
}
if (in_reply_to || thread || cover_letter)
rev.ref_message_ids = xcalloc(1, sizeof(struct string_list));
if (in_reply_to) {
const char *msgid = clean_message_id(in_reply_to);
string_list_append(rev.ref_message_ids, msgid);
}
rev.numbered_files = just_numbers;
rev.patch_suffix = fmt_patch_suffix;
if (cover_letter) {
if (thread)
gen_message_id(&rev, "cover");
make_cover_letter(&rev, use_stdout,
origin, nr, list, branch_name, quiet);
print_bases(&bases, rev.diffopt.file);
print_signature(rev.diffopt.file);
total++;
start_number--;
/* interdiff/range-diff in cover-letter; omit from patches */
rev.idiff_oid1 = NULL;
rev.rdiff1 = NULL;
}
rev.add_signoff = do_signoff;
if (show_progress)
progress = start_delayed_progress(_("Generating patches"), total);
while (0 <= --nr) {
int shown;
display_progress(progress, total - nr);
commit = list[nr];
rev.nr = total - nr + (start_number - 1);
/* Make the second and subsequent mails replies to the first */
if (thread) {
/* Have we already had a message ID? */
if (rev.message_id) {
/*
* For deep threading: make every mail
* a reply to the previous one, no
* matter what other options are set.
*
* For shallow threading:
*
* Without --cover-letter and
* --in-reply-to, make every mail a
* reply to the one before.
*
* With --in-reply-to but no
* --cover-letter, make every mail a
* reply to the <reply-to>.
*
* With --cover-letter, make every
* mail but the cover letter a reply
* to the cover letter. The cover
* letter is a reply to the
* --in-reply-to, if specified.
*/
if (thread == THREAD_SHALLOW
&& rev.ref_message_ids->nr > 0
&& (!cover_letter || rev.nr > 1))
free(rev.message_id);
else
string_list_append(rev.ref_message_ids,
rev.message_id);
}
gen_message_id(&rev, oid_to_hex(&commit->object.oid));
}
if (!use_stdout &&
open_next_file(rev.numbered_files ? NULL : commit, NULL, &rev, quiet))
die(_("failed to create output files"));
shown = log_tree_commit(&rev, commit);
free_commit_buffer(the_repository->parsed_objects,
commit);
/* We put one extra blank line between formatted
* patches and this flag is used by log-tree code
* to see if it needs to emit a LF before showing
* the log; when using one file per patch, we do
* not want the extra blank line.
*/
if (!use_stdout)
rev.shown_one = 0;
if (shown) {
print_bases(&bases, rev.diffopt.file);
if (rev.mime_boundary)
fprintf(rev.diffopt.file, "\n--%s%s--\n\n\n",
mime_boundary_leader,
rev.mime_boundary);
else
print_signature(rev.diffopt.file);
}
if (!use_stdout)
fclose(rev.diffopt.file);
}
stop_progress(&progress);
free(list);
free(branch_name);
string_list_clear(&extra_to, 0);
string_list_clear(&extra_cc, 0);
string_list_clear(&extra_hdr, 0);
if (ignore_if_in_upstream)
free_patch_ids(&ids);
done:
oid_array_clear(&idiff_prev);
strbuf_release(&idiff_title);
strbuf_release(&rdiff1);
strbuf_release(&rdiff2);
strbuf_release(&rdiff_title);
return 0;
}
static int add_pending_commit(const char *arg, struct rev_info *revs, int flags)
{
struct object_id oid;
if (get_oid(arg, &oid) == 0) {
struct commit *commit = lookup_commit_reference(the_repository,
&oid);
if (commit) {
commit->object.flags |= flags;
add_pending_object(revs, &commit->object, arg);
return 0;
}
}
return -1;
}
static const char * const cherry_usage[] = {
N_("git cherry [-v] [<upstream> [<head> [<limit>]]]"),
NULL
};
static void print_commit(char sign, struct commit *commit, int verbose,
int abbrev, FILE *file)
{
if (!verbose) {
fprintf(file, "%c %s\n", sign,
find_unique_abbrev(&commit->object.oid, abbrev));
} else {
struct strbuf buf = STRBUF_INIT;
pp_commit_easy(CMIT_FMT_ONELINE, commit, &buf);
fprintf(file, "%c %s %s\n", sign,
find_unique_abbrev(&commit->object.oid, abbrev),
buf.buf);
strbuf_release(&buf);
}
}
int cmd_cherry(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
struct patch_ids ids;
struct commit *commit;
struct commit_list *list = NULL;
struct branch *current_branch;
const char *upstream;
const char *head = "HEAD";
const char *limit = NULL;
int verbose = 0, abbrev = 0;
struct option options[] = {
OPT__ABBREV(&abbrev),
OPT__VERBOSE(&verbose, N_("be verbose")),
OPT_END()
};
argc = parse_options(argc, argv, prefix, options, cherry_usage, 0);
switch (argc) {
case 3:
limit = argv[2];
/* FALLTHROUGH */
case 2:
head = argv[1];
/* FALLTHROUGH */
case 1:
upstream = argv[0];
break;
default:
current_branch = branch_get(NULL);
upstream = branch_get_upstream(current_branch, NULL);
if (!upstream) {
fprintf(stderr, _("Could not find a tracked"
" remote branch, please"
" specify <upstream> manually.\n"));
usage_with_options(cherry_usage, options);
}
}
repo_init_revisions(the_repository, &revs, prefix);
revs.max_parents = 1;
if (add_pending_commit(head, &revs, 0))
die(_("unknown commit %s"), head);
if (add_pending_commit(upstream, &revs, UNINTERESTING))
die(_("unknown commit %s"), upstream);
/* Don't say anything if head and upstream are the same. */
if (revs.pending.nr == 2) {
struct object_array_entry *o = revs.pending.objects;
if (oideq(&o[0].item->oid, &o[1].item->oid))
return 0;
}
get_patch_ids(&revs, &ids);
if (limit && add_pending_commit(limit, &revs, UNINTERESTING))
die(_("unknown commit %s"), limit);
/* reverse the list of commits */
if (prepare_revision_walk(&revs))
die(_("revision walk setup failed"));
while ((commit = get_revision(&revs)) != NULL) {
commit_list_insert(commit, &list);
}
while (list) {
char sign = '+';
commit = list->item;
if (has_commit_patch_id(commit, &ids))
sign = '-';
print_commit(sign, commit, verbose, abbrev, revs.diffopt.file);
list = list->next;
}
free_patch_ids(&ids);
return 0;
}
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