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log.c
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2134 lines (1879 loc) · 57.1 KB
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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
/* 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 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->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_include = STRING_LIST_INIT_NODUP;
struct decoration_filter decoration_filter = {&decorate_refs_include,
&decorate_refs_exclude};
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_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>")),
{ OPTION_CALLBACK, 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)
init_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) {
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, "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) {
/* There was no "-m" 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;
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, &t->tagged->oid);
if (!o)
ret = error(_("could not read object %s"),
oid_to_hex(&t->tagged->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;
/* Turn -m on when --cc/-c was given */
if (rev->combine_merges)
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';
}
#define THREAD_SHALLOW 1
#define THREAD_DEEP 2
static int 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 int config_cover_letter;
static const char *config_output_directory;
enum {
COVER_UNSET,
COVER_OFF,
COVER_ON,
COVER_AUTO
};
static int git_format_config(const char *var, const char *value, void *cb)
{
struct rev_info *rev = 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;
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")) {
struct strbuf buf = STRBUF_INIT;
int b = git_parse_maybe_bool(value);
if (!b)
return 0;
rev->show_notes = 1;
if (b < 0) {
strbuf_addstr(&buf, value);
expand_notes_ref(&buf);
string_list_append(&rev->notes_opt.extra_notes_refs,
strbuf_detach(&buf, NULL));
} else {
rev->notes_opt.use_default_notes = 1;
}
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 void add_branch_description(struct strbuf *buf, const char *branch_name)
{
struct strbuf desc = STRBUF_INIT;
if (!branch_name || !*branch_name)
return;