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log.c
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2627 lines (2321 loc) · 71.8 KB
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/*
* Builtin "git log" and related commands (show, whatchanged)
*
* (C) Copyright 2006 Linus Torvalds
* 2006 Junio Hamano
*/
#define USE_THE_REPOSITORY_VARIABLE
#include "builtin.h"
#include "abspath.h"
#include "config.h"
#include "environment.h"
#include "gettext.h"
#include "hex.h"
#include "refs.h"
#include "object-name.h"
#include "odb.h"
#include "odb/streaming.h"
#include "pager.h"
#include "color.h"
#include "commit.h"
#include "diff.h"
#include "diff-merges.h"
#include "revision.h"
#include "log-tree.h"
#include "oid-array.h"
#include "tag.h"
#include "reflog-walk.h"
#include "patch-ids.h"
#include "path.h"
#include "shortlog.h"
#include "remote.h"
#include "string-list.h"
#include "parse-options.h"
#include "line-log.h"
#include "branch.h"
#include "version.h"
#include "mailmap.h"
#include "progress.h"
#include "commit-slab.h"
#include "advice.h"
#include "commit-reach.h"
#include "range-diff.h"
#include "tmp-objdir.h"
#include "tree.h"
#include "write-or-die.h"
#define MAIL_DEFAULT_WRAP 72
#define COVER_FROM_AUTO_MAX_SUBJECT_LEN 100
#define FORMAT_PATCH_NAME_MAX_DEFAULT 64
static unsigned int force_in_body_from;
static int stdout_mboxrd;
static int format_no_prefix;
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;
}
struct log_config {
int default_abbrev_commit;
int default_show_root;
int default_follow;
int default_show_signature;
int default_encode_email_headers;
int decoration_style;
int decoration_given;
int use_mailmap_config;
char *fmt_patch_subject_prefix;
int fmt_patch_name_max;
char *fmt_pretty;
char *default_date_mode;
#ifndef WITH_BREAKING_CHANGES
/*
* Note: git_log_config() does not touch this member and that
* is very deliberate. This member is only to be used to
* resurrect whatchanged that is deprecated.
*/
int i_still_use_this;
#endif
};
static void log_config_init(struct log_config *cfg)
{
memset(cfg, 0, sizeof(*cfg));
cfg->default_show_root = 1;
cfg->default_encode_email_headers = 1;
cfg->use_mailmap_config = 1;
cfg->fmt_patch_subject_prefix = xstrdup("PATCH");
cfg->fmt_patch_name_max = FORMAT_PATCH_NAME_MAX_DEFAULT;
cfg->decoration_style = auto_decoration_style();
}
static void log_config_release(struct log_config *cfg)
{
free(cfg->default_date_mode);
free(cfg->fmt_pretty);
free(cfg->fmt_patch_subject_prefix);
}
static int use_default_decoration_filter = 1;
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;
static int clear_decorations_callback(const struct option *opt UNUSED,
const char *arg, int unset)
{
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
string_list_clear(&decorate_refs_include, 0);
string_list_clear(&decorate_refs_exclude, 0);
use_default_decoration_filter = 0;
return 0;
}
static int decorate_callback(const struct option *opt, const char *arg,
int unset)
{
struct log_config *cfg = opt->value;
if (unset)
cfg->decoration_style = 0;
else if (arg)
cfg->decoration_style = parse_decoration_style(arg);
else
cfg->decoration_style = DECORATE_SHORT_REFS;
if (cfg->decoration_style < 0)
die(_("invalid --decorate option: %s"), arg);
cfg->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 cmd_log_init_defaults(struct rev_info *rev,
struct log_config *cfg)
{
if (cfg->fmt_pretty)
get_commit_format(cfg->fmt_pretty, rev);
if (cfg->default_follow)
rev->diffopt.flags.default_follow_renames = 1;
rev->verbose_header = 1;
init_diffstat_widths(&rev->diffopt);
rev->diffopt.flags.recursive = 1;
rev->diffopt.flags.allow_textconv = 1;
rev->abbrev_commit = cfg->default_abbrev_commit;
rev->show_root_diff = cfg->default_show_root;
rev->subject_prefix = cfg->fmt_patch_subject_prefix;
rev->patch_name_max = cfg->fmt_patch_name_max;
rev->show_signature = cfg->default_show_signature;
rev->encode_email_headers = cfg->default_encode_email_headers;
if (cfg->default_date_mode)
parse_date_format(cfg->default_date_mode, &rev->date_mode);
}
static void set_default_decoration_filter(struct decoration_filter *decoration_filter)
{
char *value = NULL;
struct string_list *include = decoration_filter->include_ref_pattern;
const struct string_list *config_exclude;
if (!repo_config_get_string_multi(the_repository, "log.excludeDecoration",
&config_exclude)) {
struct string_list_item *item;
for_each_string_list_item(item, config_exclude)
string_list_append(decoration_filter->exclude_ref_config_pattern,
item->string);
}
/*
* By default, decorate_all is disabled. Enable it if
* log.initialDecorationSet=all. Don't ever disable it by config,
* since the command-line takes precedent.
*/
if (use_default_decoration_filter &&
!repo_config_get_string(the_repository, "log.initialdecorationset", &value) &&
!strcmp("all", value))
use_default_decoration_filter = 0;
free(value);
if (!use_default_decoration_filter ||
decoration_filter->exclude_ref_pattern->nr ||
decoration_filter->include_ref_pattern->nr ||
decoration_filter->exclude_ref_config_pattern->nr)
return;
/*
* No command-line or config options were given, so
* populate with sensible defaults.
*/
for (size_t i = 0; i < ARRAY_SIZE(ref_namespace); i++) {
if (!ref_namespace[i].decoration)
continue;
string_list_append(include, ref_namespace[i].ref);
}
}
static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
struct rev_info *rev, struct setup_revision_opt *opt,
struct log_config *cfg)
{
struct userformat_want w;
int quiet = 0, source = 0, mailmap;
static struct line_opt_callback_data line_cb = {NULL, NULL, STRING_LIST_INIT_DUP};
struct decoration_filter decoration_filter = {
.exclude_ref_pattern = &decorate_refs_exclude,
.include_ref_pattern = &decorate_refs_include,
.exclude_ref_config_pattern = &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")),
#ifndef WITH_BREAKING_CHANGES
OPT_HIDDEN_BOOL(0, "i-still-use-this", &cfg->i_still_use_this,
"<use this deprecated command>"),
#endif
OPT_ALIAS(0, "mailmap", "use-mailmap"),
OPT_CALLBACK_F(0, "clear-decorations", NULL, NULL,
N_("clear all previously-defined decoration filters"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
clear_decorations_callback),
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", cfg, NULL, N_("decorate options"),
PARSE_OPT_OPTARG, decorate_callback),
OPT_CALLBACK('L', NULL, &line_cb, "range:file",
N_("trace the evolution of line range <start>,<end> or function :<funcname> in <file>"),
log_line_range_callback),
OPT_END()
};
line_cb.rev = rev;
line_cb.prefix = prefix;
mailmap = cfg->use_mailmap_config;
argc = parse_options(argc, argv, prefix,
builtin_log_options, builtin_log_usage,
PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN_OPT |
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]);
if (rev->line_level_traverse && rev->prune_data.nr)
die(_("-L<range>:<file> cannot be used with pathspec"));
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 = xmalloc(sizeof(struct string_list));
string_list_init_nodup(rev->mailmap);
read_mailmap(the_repository, rev->mailmap);
}
if (rev->pretty_given && rev->commit_format == CMIT_FMT_RAW) {
/*
* "log --pretty=raw" is special; ignore UI oriented
* configuration variables such as decoration.
*/
if (!cfg->decoration_given)
cfg->decoration_style = 0;
if (!rev->abbrev_commit_given)
rev->abbrev_commit = 0;
}
if (rev->commit_format == CMIT_FMT_USERFORMAT) {
if (!w.decorate) {
/*
* Disable decoration loading if the format will not
* show them anyway.
*/
cfg->decoration_style = 0;
} else if (!cfg->decoration_style) {
/*
* If we are going to show them, make sure we do load
* them here, but taking care not to override a
* specific style set by config or --decorate.
*/
cfg->decoration_style = DECORATE_SHORT_REFS;
}
}
if (cfg->decoration_style || rev->simplify_by_decoration) {
set_default_decoration_filter(&decoration_filter);
if (cfg->decoration_style)
rev->show_decorations = 1;
load_ref_decorations(&decoration_filter, cfg->decoration_style);
}
if (rev->line_level_traverse)
line_log_init(rev, line_cb.prefix, &line_cb.args);
setup_pager(the_repository);
}
static void cmd_log_init(int argc, const char **argv, const char *prefix,
struct rev_info *rev, struct setup_revision_opt *opt,
struct log_config *cfg)
{
cmd_log_init_defaults(rev, cfg);
cmd_log_init_finish(argc, argv, prefix, rev, opt, cfg);
}
static int cmd_log_walk_no_free(struct rev_info *rev)
{
struct commit *commit;
int saved_nrl = 0;
int saved_dcctc = 0;
int result;
if (prepare_revision_walk(rev))
die(_("revision walk setup failed"));
/*
* 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
*/
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 && !rev->remerge_diff) {
/*
* We may show a given commit multiple times when
* walking the reflogs. Therefore we still need it.
*
* Likewise, we potentially still need the parents
* of * already shown commits to determine merge
* bases when showing remerge diffs.
*/
free_commit_buffer(the_repository->parsed_objects,
commit);
commit_list_free(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;
result = diff_result_code(rev);
if (rev->diffopt.output_format & DIFF_FORMAT_CHECKDIFF &&
rev->diffopt.flags.check_failed) {
result = 02;
}
return result;
}
static int cmd_log_walk(struct rev_info *rev)
{
int retval;
rev->diffopt.no_free = 1;
retval = cmd_log_walk_no_free(rev);
rev->diffopt.no_free = 0;
diff_free(&rev->diffopt);
return retval;
}
static int git_log_config(const char *var, const char *value,
const struct config_context *ctx, void *cb)
{
struct log_config *cfg = cb;
const char *slot_name;
if (!strcmp(var, "format.pretty")) {
FREE_AND_NULL(cfg->fmt_pretty);
return git_config_string(&cfg->fmt_pretty, var, value);
}
if (!strcmp(var, "format.subjectprefix")) {
FREE_AND_NULL(cfg->fmt_patch_subject_prefix);
return git_config_string(&cfg->fmt_patch_subject_prefix, var, value);
}
if (!strcmp(var, "format.filenamemaxlength")) {
cfg->fmt_patch_name_max = git_config_int(var, value, ctx->kvi);
return 0;
}
if (!strcmp(var, "format.encodeemailheaders")) {
cfg->default_encode_email_headers = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.abbrevcommit")) {
cfg->default_abbrev_commit = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.date")) {
FREE_AND_NULL(cfg->default_date_mode);
return git_config_string(&cfg->default_date_mode, var, value);
}
if (!strcmp(var, "log.decorate")) {
cfg->decoration_style = parse_decoration_style(value);
if (cfg->decoration_style < 0)
cfg->decoration_style = 0; /* maybe warn? */
return 0;
}
if (!strcmp(var, "log.diffmerges")) {
if (!value)
return config_error_nonbool(var);
return diff_merges_config(value);
}
if (!strcmp(var, "log.showroot")) {
cfg->default_show_root = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.follow")) {
cfg->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")) {
cfg->use_mailmap_config = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "log.showsignature")) {
cfg->default_show_signature = git_config_bool(var, value);
return 0;
}
return git_diff_ui_config(var, value, ctx, cb);
}
#ifndef WITH_BREAKING_CHANGES
int cmd_whatchanged(int argc,
const char **argv,
const char *prefix,
struct repository *repo UNUSED)
{
struct log_config cfg;
struct rev_info rev;
struct setup_revision_opt opt;
int ret;
log_config_init(&cfg);
init_diff_ui_defaults();
repo_config(the_repository, git_log_config, &cfg);
repo_init_revisions(the_repository, &rev, prefix);
repo_config(the_repository, grep_config, &rev.grep_filter);
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, &cfg);
if (!cfg.i_still_use_this)
you_still_use_that("git whatchanged",
_("\n"
"hint: You can replace 'git whatchanged <opts>' with:\n"
"hint:\tgit log <opts> --raw --no-merges\n"
"hint: Or make an alias:\n"
"hint:\tgit config set --global alias.whatchanged 'log --raw --no-merges'\n"
"\n"));
if (!rev.diffopt.output_format)
rev.diffopt.output_format = DIFF_FORMAT_RAW;
ret = cmd_log_walk(&rev);
release_revisions(&rev);
log_config_release(&cfg);
return ret;
}
#endif
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 = {0};
char *buf;
unsigned long size;
fflush(rev->diffopt.file);
if (!rev->diffopt.flags.textconv_set_via_cmdline ||
!rev->diffopt.flags.allow_textconv)
return odb_stream_blob_to_fd(the_repository->objects, 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)) {
object_context_release(&obj_context);
return odb_stream_blob_to_fd(the_repository->objects, 1, oid, NULL, 0);
}
if (!buf)
die(_("git show %s: bad file"), obj_name);
write_or_die(1, buf, size);
object_context_release(&obj_context);
free(buf);
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 = odb_read_object(the_repository->objects, oid, &type, &size);
unsigned long 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') {
unsigned long 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 UNUSED,
struct strbuf *base UNUSED,
const char *pathname, unsigned mode,
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)
{
if (rev->first_parent_only)
diff_merges_default_to_first_parent(rev);
else
diff_merges_default_to_dense_combined(rev);
if (!rev->diffopt.output_format)
rev->diffopt.output_format = DIFF_FORMAT_PATCH;
}
int cmd_show(int argc,
const char **argv,
const char *prefix,
struct repository *repo UNUSED)
{
struct log_config cfg;
struct rev_info rev;
unsigned int i;
struct setup_revision_opt opt;
struct pathspec match_all;
int ret = 0;
log_config_init(&cfg);
init_diff_ui_defaults();
repo_config(the_repository, git_log_config, &cfg);
if (the_repository->gitdir) {
prepare_repo_settings(the_repository);
the_repository->settings.command_requires_full_index = 0;
}
memset(&match_all, 0, sizeof(match_all));
repo_init_revisions(the_repository, &rev, prefix);
repo_config(the_repository, grep_config, &rev.grep_filter);
rev.diff = 1;
rev.always_show_header = 1;
rev.no_walk = 1;
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, &cfg);
if (!rev.no_walk) {
ret = cmd_log_walk(&rev);
release_revisions(&rev);
log_config_release(&cfg);
return ret;
}
rev.diffopt.no_free = 1;
for (i = 0; i < rev.pending.nr && !ret; i++) {
struct object *o = rev.pending.objects[i].item;
const char *name = rev.pending.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));
rev.pending.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(the_repository, (struct tree *)o,
&match_all, show_tree_object,
rev.diffopt.file);
rev.shown_one = 1;
break;
case OBJ_COMMIT:
{
struct object_array old;
struct object_array blank = OBJECT_ARRAY_INIT;
memcpy(&old, &rev.pending, sizeof(old));
memcpy(&rev.pending, &blank, sizeof(rev.pending));
add_object_array(o, name, &rev.pending);
ret = cmd_log_walk_no_free(&rev);
/*
* No need for
* object_array_clear(&pending). It was
* cleared already in prepare_revision_walk()
*/
memcpy(&rev.pending, &old, sizeof(rev.pending));
break;
}
default:
ret = error(_("unknown type: %d"), o->type);
}
}
rev.diffopt.no_free = 0;
diff_free(&rev.diffopt);
release_revisions(&rev);
log_config_release(&cfg);
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 repository *repo UNUSED)
{
struct log_config cfg;
struct rev_info rev;
struct setup_revision_opt opt;
int ret;
log_config_init(&cfg);
init_diff_ui_defaults();
repo_config(the_repository, git_log_config, &cfg);
repo_init_revisions(the_repository, &rev, prefix);
init_reflog_walk(&rev.reflog_info);
repo_config(the_repository, grep_config, &rev.grep_filter);
rev.verbose_header = 1;
memset(&opt, 0, sizeof(opt));
opt.def = "HEAD";
cmd_log_init_defaults(&rev, &cfg);
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, &cfg);
ret = cmd_log_walk(&rev);
release_revisions(&rev);
log_config_release(&cfg);
return ret;
}
static void log_setup_revisions_tweak(struct rev_info *rev)
{
if (rev->diffopt.flags.default_follow_renames &&
diff_check_follow_pathspec(&rev->prune_data, 0))
rev->diffopt.flags.follow_renames = 1;
if (rev->first_parent_only)
diff_merges_default_to_first_parent(rev);
}
int cmd_log(int argc,
const char **argv,
const char *prefix,
struct repository *repo UNUSED)
{
struct log_config cfg;
struct rev_info rev;
struct setup_revision_opt opt;
int ret;
log_config_init(&cfg);
init_diff_ui_defaults();
repo_config(the_repository, git_log_config, &cfg);
repo_init_revisions(the_repository, &rev, prefix);
repo_config(the_repository, grep_config, &rev.grep_filter);
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, &cfg);
ret = cmd_log_walk(&rev);
release_revisions(&rev);
log_config_release(&cfg);
return ret;
}
/* format-patch */
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
};
enum auto_base_setting {
AUTO_BASE_NEVER,
AUTO_BASE_ALWAYS,
AUTO_BASE_WHEN_ABLE
};
struct format_config {
struct log_config log;
enum thread_level thread;
int do_signoff;
enum auto_base_setting auto_base;
char *base_commit;
char *from;
char *signature;
char *signature_file;
enum cover_setting config_cover_letter;
char *config_output_directory;
enum cover_from_description cover_from_description_mode;
int show_notes;
struct display_notes_opt notes_opt;
int numbered_cmdline_opt;
int numbered;
int auto_number;
char *default_attach;
struct string_list extra_hdr;
struct string_list extra_to;
struct string_list extra_cc;
int keep_subject;
int subject_prefix;
struct strbuf sprefix;
char *fmt_patch_suffix;
};
static void format_config_init(struct format_config *cfg)
{
memset(cfg, 0, sizeof(*cfg));
log_config_init(&cfg->log);
cfg->cover_from_description_mode = COVER_FROM_MESSAGE;
cfg->auto_number = 1;
string_list_init_dup(&cfg->extra_hdr);
string_list_init_dup(&cfg->extra_to);
string_list_init_dup(&cfg->extra_cc);
strbuf_init(&cfg->sprefix, 0);
cfg->fmt_patch_suffix = xstrdup(".patch");
}
static void format_config_release(struct format_config *cfg)
{
log_config_release(&cfg->log);
free(cfg->base_commit);
free(cfg->from);
free(cfg->signature);
free(cfg->signature_file);
free(cfg->config_output_directory);
free(cfg->default_attach);
string_list_clear(&cfg->extra_hdr, 0);
string_list_clear(&cfg->extra_to, 0);
string_list_clear(&cfg->extra_cc, 0);
strbuf_release(&cfg->sprefix);
free(cfg->fmt_patch_suffix);
}
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 void add_header(struct format_config *cfg, 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(&cfg->extra_to, value + 4);
len -= 4;
} else if (!strncasecmp(value, "cc: ", 4)) {
item = string_list_append(&cfg->extra_cc, value + 4);
len -= 4;
} else {
item = string_list_append(&cfg->extra_hdr, value);
}
item->string[len] = '\0';
}
static int git_format_config(const char *var, const char *value,
const struct config_context *ctx, void *cb)
{
struct format_config *cfg = cb;
if (!strcmp(var, "format.headers")) {
if (!value)
die(_("format.headers without value"));
add_header(cfg, value);
return 0;
}
if (!strcmp(var, "format.suffix")) {
FREE_AND_NULL(cfg->fmt_patch_suffix);
return git_config_string(&cfg->fmt_patch_suffix, var, value);
}
if (!strcmp(var, "format.to")) {
if (!value)
return config_error_nonbool(var);
string_list_append(&cfg->extra_to, value);
return 0;
}
if (!strcmp(var, "format.cc")) {
if (!value)
return config_error_nonbool(var);
string_list_append(&cfg->extra_cc, value);
return 0;
}
if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff") ||
!strcmp(var, "color.ui") || !strcmp(var, "diff.submodule")) {
return 0;