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-rw-r--r--third_party/git/builtin/blame.c1204
1 files changed, 0 insertions, 1204 deletions
diff --git a/third_party/git/builtin/blame.c b/third_party/git/builtin/blame.c
deleted file mode 100644
index 7112be2afe16..000000000000
--- a/third_party/git/builtin/blame.c
+++ /dev/null
@@ -1,1204 +0,0 @@
-/*
- * Blame
- *
- * Copyright (c) 2006, 2014 by its authors
- * See COPYING for licensing conditions
- */
-
-#include "cache.h"
-#include "config.h"
-#include "color.h"
-#include "builtin.h"
-#include "repository.h"
-#include "commit.h"
-#include "diff.h"
-#include "revision.h"
-#include "quote.h"
-#include "string-list.h"
-#include "mailmap.h"
-#include "parse-options.h"
-#include "prio-queue.h"
-#include "utf8.h"
-#include "userdiff.h"
-#include "line-range.h"
-#include "line-log.h"
-#include "dir.h"
-#include "progress.h"
-#include "object-store.h"
-#include "blame.h"
-#include "refs.h"
-#include "tag.h"
-
-static char blame_usage[] = N_("git blame [<options>] [<rev-opts>] [<rev>] [--] <file>");
-
-static const char *blame_opt_usage[] = {
-	blame_usage,
-	"",
-	N_("<rev-opts> are documented in git-rev-list(1)"),
-	NULL
-};
-
-static int longest_file;
-static int longest_author;
-static int max_orig_digits;
-static int max_digits;
-static int max_score_digits;
-static int show_root;
-static int reverse;
-static int blank_boundary;
-static int incremental;
-static int xdl_opts;
-static int abbrev = -1;
-static int no_whole_file_rename;
-static int show_progress;
-static char repeated_meta_color[COLOR_MAXLEN];
-static int coloring_mode;
-static struct string_list ignore_revs_file_list = STRING_LIST_INIT_NODUP;
-static int mark_unblamable_lines;
-static int mark_ignored_lines;
-
-static struct date_mode blame_date_mode = { DATE_ISO8601 };
-static size_t blame_date_width;
-
-static struct string_list mailmap = STRING_LIST_INIT_NODUP;
-
-#ifndef DEBUG_BLAME
-#define DEBUG_BLAME 0
-#endif
-
-static unsigned blame_move_score;
-static unsigned blame_copy_score;
-
-/* Remember to update object flag allocation in object.h */
-#define METAINFO_SHOWN		(1u<<12)
-#define MORE_THAN_ONE_PATH	(1u<<13)
-
-struct progress_info {
-	struct progress *progress;
-	int blamed_lines;
-};
-
-static const char *nth_line_cb(void *data, long lno)
-{
-	return blame_nth_line((struct blame_scoreboard *)data, lno);
-}
-
-/*
- * Information on commits, used for output.
- */
-struct commit_info {
-	struct strbuf author;
-	struct strbuf author_mail;
-	timestamp_t author_time;
-	struct strbuf author_tz;
-
-	/* filled only when asked for details */
-	struct strbuf committer;
-	struct strbuf committer_mail;
-	timestamp_t committer_time;
-	struct strbuf committer_tz;
-
-	struct strbuf summary;
-};
-
-/*
- * Parse author/committer line in the commit object buffer
- */
-static void get_ac_line(const char *inbuf, const char *what,
-	struct strbuf *name, struct strbuf *mail,
-	timestamp_t *time, struct strbuf *tz)
-{
-	struct ident_split ident;
-	size_t len, maillen, namelen;
-	char *tmp, *endp;
-	const char *namebuf, *mailbuf;
-
-	tmp = strstr(inbuf, what);
-	if (!tmp)
-		goto error_out;
-	tmp += strlen(what);
-	endp = strchr(tmp, '\n');
-	if (!endp)
-		len = strlen(tmp);
-	else
-		len = endp - tmp;
-
-	if (split_ident_line(&ident, tmp, len)) {
-	error_out:
-		/* Ugh */
-		tmp = "(unknown)";
-		strbuf_addstr(name, tmp);
-		strbuf_addstr(mail, tmp);
-		strbuf_addstr(tz, tmp);
-		*time = 0;
-		return;
-	}
-
-	namelen = ident.name_end - ident.name_begin;
-	namebuf = ident.name_begin;
-
-	maillen = ident.mail_end - ident.mail_begin;
-	mailbuf = ident.mail_begin;
-
-	if (ident.date_begin && ident.date_end)
-		*time = strtoul(ident.date_begin, NULL, 10);
-	else
-		*time = 0;
-
-	if (ident.tz_begin && ident.tz_end)
-		strbuf_add(tz, ident.tz_begin, ident.tz_end - ident.tz_begin);
-	else
-		strbuf_addstr(tz, "(unknown)");
-
-	/*
-	 * Now, convert both name and e-mail using mailmap
-	 */
-	map_user(&mailmap, &mailbuf, &maillen,
-		 &namebuf, &namelen);
-
-	strbuf_addf(mail, "<%.*s>", (int)maillen, mailbuf);
-	strbuf_add(name, namebuf, namelen);
-}
-
-static void commit_info_init(struct commit_info *ci)
-{
-
-	strbuf_init(&ci->author, 0);
-	strbuf_init(&ci->author_mail, 0);
-	strbuf_init(&ci->author_tz, 0);
-	strbuf_init(&ci->committer, 0);
-	strbuf_init(&ci->committer_mail, 0);
-	strbuf_init(&ci->committer_tz, 0);
-	strbuf_init(&ci->summary, 0);
-}
-
-static void commit_info_destroy(struct commit_info *ci)
-{
-
-	strbuf_release(&ci->author);
-	strbuf_release(&ci->author_mail);
-	strbuf_release(&ci->author_tz);
-	strbuf_release(&ci->committer);
-	strbuf_release(&ci->committer_mail);
-	strbuf_release(&ci->committer_tz);
-	strbuf_release(&ci->summary);
-}
-
-static void get_commit_info(struct commit *commit,
-			    struct commit_info *ret,
-			    int detailed)
-{
-	int len;
-	const char *subject, *encoding;
-	const char *message;
-
-	commit_info_init(ret);
-
-	encoding = get_log_output_encoding();
-	message = logmsg_reencode(commit, NULL, encoding);
-	get_ac_line(message, "\nauthor ",
-		    &ret->author, &ret->author_mail,
-		    &ret->author_time, &ret->author_tz);
-
-	if (!detailed) {
-		unuse_commit_buffer(commit, message);
-		return;
-	}
-
-	get_ac_line(message, "\ncommitter ",
-		    &ret->committer, &ret->committer_mail,
-		    &ret->committer_time, &ret->committer_tz);
-
-	len = find_commit_subject(message, &subject);
-	if (len)
-		strbuf_add(&ret->summary, subject, len);
-	else
-		strbuf_addf(&ret->summary, "(%s)", oid_to_hex(&commit->object.oid));
-
-	unuse_commit_buffer(commit, message);
-}
-
-/*
- * Write out any suspect information which depends on the path. This must be
- * handled separately from emit_one_suspect_detail(), because a given commit
- * may have changes in multiple paths. So this needs to appear each time
- * we mention a new group.
- *
- * To allow LF and other nonportable characters in pathnames,
- * they are c-style quoted as needed.
- */
-static void write_filename_info(struct blame_origin *suspect)
-{
-	if (suspect->previous) {
-		struct blame_origin *prev = suspect->previous;
-		printf("previous %s ", oid_to_hex(&prev->commit->object.oid));
-		write_name_quoted(prev->path, stdout, '\n');
-	}
-	printf("filename ");
-	write_name_quoted(suspect->path, stdout, '\n');
-}
-
-/*
- * Porcelain/Incremental format wants to show a lot of details per
- * commit.  Instead of repeating this every line, emit it only once,
- * the first time each commit appears in the output (unless the
- * user has specifically asked for us to repeat).
- */
-static int emit_one_suspect_detail(struct blame_origin *suspect, int repeat)
-{
-	struct commit_info ci;
-
-	if (!repeat && (suspect->commit->object.flags & METAINFO_SHOWN))
-		return 0;
-
-	suspect->commit->object.flags |= METAINFO_SHOWN;
-	get_commit_info(suspect->commit, &ci, 1);
-	printf("author %s\n", ci.author.buf);
-	printf("author-mail %s\n", ci.author_mail.buf);
-	printf("author-time %"PRItime"\n", ci.author_time);
-	printf("author-tz %s\n", ci.author_tz.buf);
-	printf("committer %s\n", ci.committer.buf);
-	printf("committer-mail %s\n", ci.committer_mail.buf);
-	printf("committer-time %"PRItime"\n", ci.committer_time);
-	printf("committer-tz %s\n", ci.committer_tz.buf);
-	printf("summary %s\n", ci.summary.buf);
-	if (suspect->commit->object.flags & UNINTERESTING)
-		printf("boundary\n");
-
-	commit_info_destroy(&ci);
-
-	return 1;
-}
-
-/*
- * The blame_entry is found to be guilty for the range.
- * Show it in incremental output.
- */
-static void found_guilty_entry(struct blame_entry *ent, void *data)
-{
-	struct progress_info *pi = (struct progress_info *)data;
-
-	if (incremental) {
-		struct blame_origin *suspect = ent->suspect;
-
-		printf("%s %d %d %d\n",
-		       oid_to_hex(&suspect->commit->object.oid),
-		       ent->s_lno + 1, ent->lno + 1, ent->num_lines);
-		emit_one_suspect_detail(suspect, 0);
-		write_filename_info(suspect);
-		maybe_flush_or_die(stdout, "stdout");
-	}
-	pi->blamed_lines += ent->num_lines;
-	display_progress(pi->progress, pi->blamed_lines);
-}
-
-static const char *format_time(timestamp_t time, const char *tz_str,
-			       int show_raw_time)
-{
-	static struct strbuf time_buf = STRBUF_INIT;
-
-	strbuf_reset(&time_buf);
-	if (show_raw_time) {
-		strbuf_addf(&time_buf, "%"PRItime" %s", time, tz_str);
-	}
-	else {
-		const char *time_str;
-		size_t time_width;
-		int tz;
-		tz = atoi(tz_str);
-		time_str = show_date(time, tz, &blame_date_mode);
-		strbuf_addstr(&time_buf, time_str);
-		/*
-		 * Add space paddings to time_buf to display a fixed width
-		 * string, and use time_width for display width calibration.
-		 */
-		for (time_width = utf8_strwidth(time_str);
-		     time_width < blame_date_width;
-		     time_width++)
-			strbuf_addch(&time_buf, ' ');
-	}
-	return time_buf.buf;
-}
-
-#define OUTPUT_ANNOTATE_COMPAT      (1U<<0)
-#define OUTPUT_LONG_OBJECT_NAME     (1U<<1)
-#define OUTPUT_RAW_TIMESTAMP        (1U<<2)
-#define OUTPUT_PORCELAIN            (1U<<3)
-#define OUTPUT_SHOW_NAME            (1U<<4)
-#define OUTPUT_SHOW_NUMBER          (1U<<5)
-#define OUTPUT_SHOW_SCORE           (1U<<6)
-#define OUTPUT_NO_AUTHOR            (1U<<7)
-#define OUTPUT_SHOW_EMAIL           (1U<<8)
-#define OUTPUT_LINE_PORCELAIN       (1U<<9)
-#define OUTPUT_COLOR_LINE           (1U<<10)
-#define OUTPUT_SHOW_AGE_WITH_COLOR  (1U<<11)
-
-static void emit_porcelain_details(struct blame_origin *suspect, int repeat)
-{
-	if (emit_one_suspect_detail(suspect, repeat) ||
-	    (suspect->commit->object.flags & MORE_THAN_ONE_PATH))
-		write_filename_info(suspect);
-}
-
-static void emit_porcelain(struct blame_scoreboard *sb, struct blame_entry *ent,
-			   int opt)
-{
-	int repeat = opt & OUTPUT_LINE_PORCELAIN;
-	int cnt;
-	const char *cp;
-	struct blame_origin *suspect = ent->suspect;
-	char hex[GIT_MAX_HEXSZ + 1];
-
-	oid_to_hex_r(hex, &suspect->commit->object.oid);
-	printf("%s %d %d %d\n",
-	       hex,
-	       ent->s_lno + 1,
-	       ent->lno + 1,
-	       ent->num_lines);
-	emit_porcelain_details(suspect, repeat);
-
-	cp = blame_nth_line(sb, ent->lno);
-	for (cnt = 0; cnt < ent->num_lines; cnt++) {
-		char ch;
-		if (cnt) {
-			printf("%s %d %d\n", hex,
-			       ent->s_lno + 1 + cnt,
-			       ent->lno + 1 + cnt);
-			if (repeat)
-				emit_porcelain_details(suspect, 1);
-		}
-		putchar('\t');
-		do {
-			ch = *cp++;
-			putchar(ch);
-		} while (ch != '\n' &&
-			 cp < sb->final_buf + sb->final_buf_size);
-	}
-
-	if (sb->final_buf_size && cp[-1] != '\n')
-		putchar('\n');
-}
-
-static struct color_field {
-	timestamp_t hop;
-	char col[COLOR_MAXLEN];
-} *colorfield;
-static int colorfield_nr, colorfield_alloc;
-
-static void parse_color_fields(const char *s)
-{
-	struct string_list l = STRING_LIST_INIT_DUP;
-	struct string_list_item *item;
-	enum { EXPECT_DATE, EXPECT_COLOR } next = EXPECT_COLOR;
-
-	colorfield_nr = 0;
-
-	/* Ideally this would be stripped and split at the same time? */
-	string_list_split(&l, s, ',', -1);
-	ALLOC_GROW(colorfield, colorfield_nr + 1, colorfield_alloc);
-
-	for_each_string_list_item(item, &l) {
-		switch (next) {
-		case EXPECT_DATE:
-			colorfield[colorfield_nr].hop = approxidate(item->string);
-			next = EXPECT_COLOR;
-			colorfield_nr++;
-			ALLOC_GROW(colorfield, colorfield_nr + 1, colorfield_alloc);
-			break;
-		case EXPECT_COLOR:
-			if (color_parse(item->string, colorfield[colorfield_nr].col))
-				die(_("expecting a color: %s"), item->string);
-			next = EXPECT_DATE;
-			break;
-		}
-	}
-
-	if (next == EXPECT_COLOR)
-		die(_("must end with a color"));
-
-	colorfield[colorfield_nr].hop = TIME_MAX;
-	string_list_clear(&l, 0);
-}
-
-static void setup_default_color_by_age(void)
-{
-	parse_color_fields("blue,12 month ago,white,1 month ago,red");
-}
-
-static void determine_line_heat(struct blame_entry *ent, const char **dest_color)
-{
-	int i = 0;
-	struct commit_info ci;
-	get_commit_info(ent->suspect->commit, &ci, 1);
-
-	while (i < colorfield_nr && ci.author_time > colorfield[i].hop)
-		i++;
-
-	*dest_color = colorfield[i].col;
-}
-
-static void emit_other(struct blame_scoreboard *sb, struct blame_entry *ent, int opt)
-{
-	int cnt;
-	const char *cp;
-	struct blame_origin *suspect = ent->suspect;
-	struct commit_info ci;
-	char hex[GIT_MAX_HEXSZ + 1];
-	int show_raw_time = !!(opt & OUTPUT_RAW_TIMESTAMP);
-	const char *default_color = NULL, *color = NULL, *reset = NULL;
-
-	get_commit_info(suspect->commit, &ci, 1);
-	oid_to_hex_r(hex, &suspect->commit->object.oid);
-
-	cp = blame_nth_line(sb, ent->lno);
-
-	if (opt & OUTPUT_SHOW_AGE_WITH_COLOR) {
-		determine_line_heat(ent, &default_color);
-		color = default_color;
-		reset = GIT_COLOR_RESET;
-	}
-
-	for (cnt = 0; cnt < ent->num_lines; cnt++) {
-		char ch;
-		int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? the_hash_algo->hexsz : abbrev;
-
-		if (opt & OUTPUT_COLOR_LINE) {
-			if (cnt > 0) {
-				color = repeated_meta_color;
-				reset = GIT_COLOR_RESET;
-			} else  {
-				color = default_color ? default_color : NULL;
-				reset = default_color ? GIT_COLOR_RESET : NULL;
-			}
-		}
-		if (color)
-			fputs(color, stdout);
-
-		if (suspect->commit->object.flags & UNINTERESTING) {
-			if (blank_boundary)
-				memset(hex, ' ', length);
-			else if (!(opt & OUTPUT_ANNOTATE_COMPAT)) {
-				length--;
-				putchar('^');
-			}
-		}
-
-		if (mark_unblamable_lines && ent->unblamable) {
-			length--;
-			putchar('*');
-		}
-		if (mark_ignored_lines && ent->ignored) {
-			length--;
-			putchar('?');
-		}
-		printf("%.*s", length, hex);
-		if (opt & OUTPUT_ANNOTATE_COMPAT) {
-			const char *name;
-			if (opt & OUTPUT_SHOW_EMAIL)
-				name = ci.author_mail.buf;
-			else
-				name = ci.author.buf;
-			printf("\t(%10s\t%10s\t%d)", name,
-			       format_time(ci.author_time, ci.author_tz.buf,
-					   show_raw_time),
-			       ent->lno + 1 + cnt);
-		} else {
-			if (opt & OUTPUT_SHOW_SCORE)
-				printf(" %*d %02d",
-				       max_score_digits, ent->score,
-				       ent->suspect->refcnt);
-			if (opt & OUTPUT_SHOW_NAME)
-				printf(" %-*.*s", longest_file, longest_file,
-				       suspect->path);
-			if (opt & OUTPUT_SHOW_NUMBER)
-				printf(" %*d", max_orig_digits,
-				       ent->s_lno + 1 + cnt);
-
-			if (!(opt & OUTPUT_NO_AUTHOR)) {
-				const char *name;
-				int pad;
-				if (opt & OUTPUT_SHOW_EMAIL)
-					name = ci.author_mail.buf;
-				else
-					name = ci.author.buf;
-				pad = longest_author - utf8_strwidth(name);
-				printf(" (%s%*s %10s",
-				       name, pad, "",
-				       format_time(ci.author_time,
-						   ci.author_tz.buf,
-						   show_raw_time));
-			}
-			printf(" %*d) ",
-			       max_digits, ent->lno + 1 + cnt);
-		}
-		if (reset)
-			fputs(reset, stdout);
-		do {
-			ch = *cp++;
-			putchar(ch);
-		} while (ch != '\n' &&
-			 cp < sb->final_buf + sb->final_buf_size);
-	}
-
-	if (sb->final_buf_size && cp[-1] != '\n')
-		putchar('\n');
-
-	commit_info_destroy(&ci);
-}
-
-static void output(struct blame_scoreboard *sb, int option)
-{
-	struct blame_entry *ent;
-
-	if (option & OUTPUT_PORCELAIN) {
-		for (ent = sb->ent; ent; ent = ent->next) {
-			int count = 0;
-			struct blame_origin *suspect;
-			struct commit *commit = ent->suspect->commit;
-			if (commit->object.flags & MORE_THAN_ONE_PATH)
-				continue;
-			for (suspect = get_blame_suspects(commit); suspect; suspect = suspect->next) {
-				if (suspect->guilty && count++) {
-					commit->object.flags |= MORE_THAN_ONE_PATH;
-					break;
-				}
-			}
-		}
-	}
-
-	for (ent = sb->ent; ent; ent = ent->next) {
-		if (option & OUTPUT_PORCELAIN)
-			emit_porcelain(sb, ent, option);
-		else {
-			emit_other(sb, ent, option);
-		}
-	}
-}
-
-/*
- * Add phony grafts for use with -S; this is primarily to
- * support git's cvsserver that wants to give a linear history
- * to its clients.
- */
-static int read_ancestry(const char *graft_file)
-{
-	FILE *fp = fopen_or_warn(graft_file, "r");
-	struct strbuf buf = STRBUF_INIT;
-	if (!fp)
-		return -1;
-	while (!strbuf_getwholeline(&buf, fp, '\n')) {
-		/* The format is just "Commit Parent1 Parent2 ...\n" */
-		struct commit_graft *graft = read_graft_line(&buf);
-		if (graft)
-			register_commit_graft(the_repository, graft, 0);
-	}
-	fclose(fp);
-	strbuf_release(&buf);
-	return 0;
-}
-
-static int update_auto_abbrev(int auto_abbrev, struct blame_origin *suspect)
-{
-	const char *uniq = find_unique_abbrev(&suspect->commit->object.oid,
-					      auto_abbrev);
-	int len = strlen(uniq);
-	if (auto_abbrev < len)
-		return len;
-	return auto_abbrev;
-}
-
-/*
- * How many columns do we need to show line numbers, authors,
- * and filenames?
- */
-static void find_alignment(struct blame_scoreboard *sb, int *option)
-{
-	int longest_src_lines = 0;
-	int longest_dst_lines = 0;
-	unsigned largest_score = 0;
-	struct blame_entry *e;
-	int compute_auto_abbrev = (abbrev < 0);
-	int auto_abbrev = DEFAULT_ABBREV;
-
-	for (e = sb->ent; e; e = e->next) {
-		struct blame_origin *suspect = e->suspect;
-		int num;
-
-		if (compute_auto_abbrev)
-			auto_abbrev = update_auto_abbrev(auto_abbrev, suspect);
-		if (strcmp(suspect->path, sb->path))
-			*option |= OUTPUT_SHOW_NAME;
-		num = strlen(suspect->path);
-		if (longest_file < num)
-			longest_file = num;
-		if (!(suspect->commit->object.flags & METAINFO_SHOWN)) {
-			struct commit_info ci;
-			suspect->commit->object.flags |= METAINFO_SHOWN;
-			get_commit_info(suspect->commit, &ci, 1);
-			if (*option & OUTPUT_SHOW_EMAIL)
-				num = utf8_strwidth(ci.author_mail.buf);
-			else
-				num = utf8_strwidth(ci.author.buf);
-			if (longest_author < num)
-				longest_author = num;
-			commit_info_destroy(&ci);
-		}
-		num = e->s_lno + e->num_lines;
-		if (longest_src_lines < num)
-			longest_src_lines = num;
-		num = e->lno + e->num_lines;
-		if (longest_dst_lines < num)
-			longest_dst_lines = num;
-		if (largest_score < blame_entry_score(sb, e))
-			largest_score = blame_entry_score(sb, e);
-	}
-	max_orig_digits = decimal_width(longest_src_lines);
-	max_digits = decimal_width(longest_dst_lines);
-	max_score_digits = decimal_width(largest_score);
-
-	if (compute_auto_abbrev)
-		/* one more abbrev length is needed for the boundary commit */
-		abbrev = auto_abbrev + 1;
-}
-
-static void sanity_check_on_fail(struct blame_scoreboard *sb, int baa)
-{
-	int opt = OUTPUT_SHOW_SCORE | OUTPUT_SHOW_NUMBER | OUTPUT_SHOW_NAME;
-	find_alignment(sb, &opt);
-	output(sb, opt);
-	die("Baa %d!", baa);
-}
-
-static unsigned parse_score(const char *arg)
-{
-	char *end;
-	unsigned long score = strtoul(arg, &end, 10);
-	if (*end)
-		return 0;
-	return score;
-}
-
-static const char *add_prefix(const char *prefix, const char *path)
-{
-	return prefix_path(prefix, prefix ? strlen(prefix) : 0, path);
-}
-
-static int git_blame_config(const char *var, const char *value, void *cb)
-{
-	if (!strcmp(var, "blame.showroot")) {
-		show_root = git_config_bool(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "blame.blankboundary")) {
-		blank_boundary = git_config_bool(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "blame.showemail")) {
-		int *output_option = cb;
-		if (git_config_bool(var, value))
-			*output_option |= OUTPUT_SHOW_EMAIL;
-		else
-			*output_option &= ~OUTPUT_SHOW_EMAIL;
-		return 0;
-	}
-	if (!strcmp(var, "blame.date")) {
-		if (!value)
-			return config_error_nonbool(var);
-		parse_date_format(value, &blame_date_mode);
-		return 0;
-	}
-	if (!strcmp(var, "blame.ignorerevsfile")) {
-		const char *str;
-		int ret;
-
-		ret = git_config_pathname(&str, var, value);
-		if (ret)
-			return ret;
-		string_list_insert(&ignore_revs_file_list, str);
-		return 0;
-	}
-	if (!strcmp(var, "blame.markunblamablelines")) {
-		mark_unblamable_lines = git_config_bool(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "blame.markignoredlines")) {
-		mark_ignored_lines = git_config_bool(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "color.blame.repeatedlines")) {
-		if (color_parse_mem(value, strlen(value), repeated_meta_color))
-			warning(_("invalid color '%s' in color.blame.repeatedLines"),
-				value);
-		return 0;
-	}
-	if (!strcmp(var, "color.blame.highlightrecent")) {
-		parse_color_fields(value);
-		return 0;
-	}
-
-	if (!strcmp(var, "blame.coloring")) {
-		if (!strcmp(value, "repeatedLines")) {
-			coloring_mode |= OUTPUT_COLOR_LINE;
-		} else if (!strcmp(value, "highlightRecent")) {
-			coloring_mode |= OUTPUT_SHOW_AGE_WITH_COLOR;
-		} else if (!strcmp(value, "none")) {
-			coloring_mode &= ~(OUTPUT_COLOR_LINE |
-					    OUTPUT_SHOW_AGE_WITH_COLOR);
-		} else {
-			warning(_("invalid value for blame.coloring"));
-			return 0;
-		}
-	}
-
-	if (git_diff_heuristic_config(var, value, cb) < 0)
-		return -1;
-	if (userdiff_config(var, value) < 0)
-		return -1;
-
-	return git_default_config(var, value, cb);
-}
-
-static int blame_copy_callback(const struct option *option, const char *arg, int unset)
-{
-	int *opt = option->value;
-
-	BUG_ON_OPT_NEG(unset);
-
-	/*
-	 * -C enables copy from removed files;
-	 * -C -C enables copy from existing files, but only
-	 *       when blaming a new file;
-	 * -C -C -C enables copy from existing files for
-	 *          everybody
-	 */
-	if (*opt & PICKAXE_BLAME_COPY_HARDER)
-		*opt |= PICKAXE_BLAME_COPY_HARDEST;
-	if (*opt & PICKAXE_BLAME_COPY)
-		*opt |= PICKAXE_BLAME_COPY_HARDER;
-	*opt |= PICKAXE_BLAME_COPY | PICKAXE_BLAME_MOVE;
-
-	if (arg)
-		blame_copy_score = parse_score(arg);
-	return 0;
-}
-
-static int blame_move_callback(const struct option *option, const char *arg, int unset)
-{
-	int *opt = option->value;
-
-	BUG_ON_OPT_NEG(unset);
-
-	*opt |= PICKAXE_BLAME_MOVE;
-
-	if (arg)
-		blame_move_score = parse_score(arg);
-	return 0;
-}
-
-static int is_a_rev(const char *name)
-{
-	struct object_id oid;
-
-	if (get_oid(name, &oid))
-		return 0;
-	return OBJ_NONE < oid_object_info(the_repository, &oid, NULL);
-}
-
-static int peel_to_commit_oid(struct object_id *oid_ret, void *cbdata)
-{
-	struct repository *r = ((struct blame_scoreboard *)cbdata)->repo;
-	struct object_id oid;
-
-	oidcpy(&oid, oid_ret);
-	while (1) {
-		struct object *obj;
-		int kind = oid_object_info(r, &oid, NULL);
-		if (kind == OBJ_COMMIT) {
-			oidcpy(oid_ret, &oid);
-			return 0;
-		}
-		if (kind != OBJ_TAG)
-			return -1;
-		obj = deref_tag(r, parse_object(r, &oid), NULL, 0);
-		oidcpy(&oid, &obj->oid);
-	}
-}
-
-static void build_ignorelist(struct blame_scoreboard *sb,
-			     struct string_list *ignore_revs_file_list,
-			     struct string_list *ignore_rev_list)
-{
-	struct string_list_item *i;
-	struct object_id oid;
-
-	oidset_init(&sb->ignore_list, 0);
-	for_each_string_list_item(i, ignore_revs_file_list) {
-		if (!strcmp(i->string, ""))
-			oidset_clear(&sb->ignore_list);
-		else
-			oidset_parse_file_carefully(&sb->ignore_list, i->string,
-						    peel_to_commit_oid, sb);
-	}
-	for_each_string_list_item(i, ignore_rev_list) {
-		if (get_oid_committish(i->string, &oid) ||
-		    peel_to_commit_oid(&oid, sb))
-			die(_("cannot find revision %s to ignore"), i->string);
-		oidset_insert(&sb->ignore_list, &oid);
-	}
-}
-
-int cmd_blame(int argc, const char **argv, const char *prefix)
-{
-	struct rev_info revs;
-	const char *path;
-	struct blame_scoreboard sb;
-	struct blame_origin *o;
-	struct blame_entry *ent = NULL;
-	long dashdash_pos, lno;
-	struct progress_info pi = { NULL, 0 };
-
-	struct string_list range_list = STRING_LIST_INIT_NODUP;
-	struct string_list ignore_rev_list = STRING_LIST_INIT_NODUP;
-	int output_option = 0, opt = 0;
-	int show_stats = 0;
-	const char *revs_file = NULL;
-	const char *contents_from = NULL;
-	const struct option options[] = {
-		OPT_BOOL(0, "incremental", &incremental, N_("Show blame entries as we find them, incrementally")),
-		OPT_BOOL('b', NULL, &blank_boundary, N_("Do not show object names of boundary commits (Default: off)")),
-		OPT_BOOL(0, "root", &show_root, N_("Do not treat root commits as boundaries (Default: off)")),
-		OPT_BOOL(0, "show-stats", &show_stats, N_("Show work cost statistics")),
-		OPT_BOOL(0, "progress", &show_progress, N_("Force progress reporting")),
-		OPT_BIT(0, "score-debug", &output_option, N_("Show output score for blame entries"), OUTPUT_SHOW_SCORE),
-		OPT_BIT('f', "show-name", &output_option, N_("Show original filename (Default: auto)"), OUTPUT_SHOW_NAME),
-		OPT_BIT('n', "show-number", &output_option, N_("Show original linenumber (Default: off)"), OUTPUT_SHOW_NUMBER),
-		OPT_BIT('p', "porcelain", &output_option, N_("Show in a format designed for machine consumption"), OUTPUT_PORCELAIN),
-		OPT_BIT(0, "line-porcelain", &output_option, N_("Show porcelain format with per-line commit information"), OUTPUT_PORCELAIN|OUTPUT_LINE_PORCELAIN),
-		OPT_BIT('c', NULL, &output_option, N_("Use the same output mode as git-annotate (Default: off)"), OUTPUT_ANNOTATE_COMPAT),
-		OPT_BIT('t', NULL, &output_option, N_("Show raw timestamp (Default: off)"), OUTPUT_RAW_TIMESTAMP),
-		OPT_BIT('l', NULL, &output_option, N_("Show long commit SHA1 (Default: off)"), OUTPUT_LONG_OBJECT_NAME),
-		OPT_BIT('s', NULL, &output_option, N_("Suppress author name and timestamp (Default: off)"), OUTPUT_NO_AUTHOR),
-		OPT_BIT('e', "show-email", &output_option, N_("Show author email instead of name (Default: off)"), OUTPUT_SHOW_EMAIL),
-		OPT_BIT('w', NULL, &xdl_opts, N_("Ignore whitespace differences"), XDF_IGNORE_WHITESPACE),
-		OPT_STRING_LIST(0, "ignore-rev", &ignore_rev_list, N_("rev"), N_("Ignore <rev> when blaming")),
-		OPT_STRING_LIST(0, "ignore-revs-file", &ignore_revs_file_list, N_("file"), N_("Ignore revisions from <file>")),
-		OPT_BIT(0, "color-lines", &output_option, N_("color redundant metadata from previous line differently"), OUTPUT_COLOR_LINE),
-		OPT_BIT(0, "color-by-age", &output_option, N_("color lines by age"), OUTPUT_SHOW_AGE_WITH_COLOR),
-		OPT_BIT(0, "minimal", &xdl_opts, N_("Spend extra cycles to find better match"), XDF_NEED_MINIMAL),
-		OPT_STRING('S', NULL, &revs_file, N_("file"), N_("Use revisions from <file> instead of calling git-rev-list")),
-		OPT_STRING(0, "contents", &contents_from, N_("file"), N_("Use <file>'s contents as the final image")),
-		OPT_CALLBACK_F('C', NULL, &opt, N_("score"), N_("Find line copies within and across files"), PARSE_OPT_OPTARG, blame_copy_callback),
-		OPT_CALLBACK_F('M', NULL, &opt, N_("score"), N_("Find line movements within and across files"), PARSE_OPT_OPTARG, blame_move_callback),
-		OPT_STRING_LIST('L', NULL, &range_list, N_("n,m"), N_("Process only line range n,m, counting from 1")),
-		OPT__ABBREV(&abbrev),
-		OPT_END()
-	};
-
-	struct parse_opt_ctx_t ctx;
-	int cmd_is_annotate = !strcmp(argv[0], "annotate");
-	struct range_set ranges;
-	unsigned int range_i;
-	long anchor;
-	const int hexsz = the_hash_algo->hexsz;
-
-	setup_default_color_by_age();
-	git_config(git_blame_config, &output_option);
-	repo_init_revisions(the_repository, &revs, NULL);
-	revs.date_mode = blame_date_mode;
-	revs.diffopt.flags.allow_textconv = 1;
-	revs.diffopt.flags.follow_renames = 1;
-
-	save_commit_buffer = 0;
-	dashdash_pos = 0;
-	show_progress = -1;
-
-	parse_options_start(&ctx, argc, argv, prefix, options,
-			    PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);
-	for (;;) {
-		switch (parse_options_step(&ctx, options, blame_opt_usage)) {
-		case PARSE_OPT_HELP:
-		case PARSE_OPT_ERROR:
-			exit(129);
-		case PARSE_OPT_COMPLETE:
-			exit(0);
-		case PARSE_OPT_DONE:
-			if (ctx.argv[0])
-				dashdash_pos = ctx.cpidx;
-			goto parse_done;
-		}
-
-		if (!strcmp(ctx.argv[0], "--reverse")) {
-			ctx.argv[0] = "--children";
-			reverse = 1;
-		}
-		parse_revision_opt(&revs, &ctx, options, blame_opt_usage);
-	}
-parse_done:
-	no_whole_file_rename = !revs.diffopt.flags.follow_renames;
-	xdl_opts |= revs.diffopt.xdl_opts & XDF_INDENT_HEURISTIC;
-	revs.diffopt.flags.follow_renames = 0;
-	argc = parse_options_end(&ctx);
-
-	if (incremental || (output_option & OUTPUT_PORCELAIN)) {
-		if (show_progress > 0)
-			die(_("--progress can't be used with --incremental or porcelain formats"));
-		show_progress = 0;
-	} else if (show_progress < 0)
-		show_progress = isatty(2);
-
-	if (0 < abbrev && abbrev < hexsz)
-		/* one more abbrev length is needed for the boundary commit */
-		abbrev++;
-	else if (!abbrev)
-		abbrev = hexsz;
-
-	if (revs_file && read_ancestry(revs_file))
-		die_errno("reading graft file '%s' failed", revs_file);
-
-	if (cmd_is_annotate) {
-		output_option |= OUTPUT_ANNOTATE_COMPAT;
-		blame_date_mode.type = DATE_ISO8601;
-	} else {
-		blame_date_mode = revs.date_mode;
-	}
-
-	/* The maximum width used to show the dates */
-	switch (blame_date_mode.type) {
-	case DATE_RFC2822:
-		blame_date_width = sizeof("Thu, 19 Oct 2006 16:00:04 -0700");
-		break;
-	case DATE_ISO8601_STRICT:
-		blame_date_width = sizeof("2006-10-19T16:00:04-07:00");
-		break;
-	case DATE_ISO8601:
-		blame_date_width = sizeof("2006-10-19 16:00:04 -0700");
-		break;
-	case DATE_RAW:
-		blame_date_width = sizeof("1161298804 -0700");
-		break;
-	case DATE_UNIX:
-		blame_date_width = sizeof("1161298804");
-		break;
-	case DATE_SHORT:
-		blame_date_width = sizeof("2006-10-19");
-		break;
-	case DATE_RELATIVE:
-		/*
-		 * TRANSLATORS: This string is used to tell us the
-		 * maximum display width for a relative timestamp in
-		 * "git blame" output.  For C locale, "4 years, 11
-		 * months ago", which takes 22 places, is the longest
-		 * among various forms of relative timestamps, but
-		 * your language may need more or fewer display
-		 * columns.
-		 */
-		blame_date_width = utf8_strwidth(_("4 years, 11 months ago")) + 1; /* add the null */
-		break;
-	case DATE_HUMAN:
-		/* If the year is shown, no time is shown */
-		blame_date_width = sizeof("Thu Oct 19 16:00");
-		break;
-	case DATE_NORMAL:
-		blame_date_width = sizeof("Thu Oct 19 16:00:04 2006 -0700");
-		break;
-	case DATE_STRFTIME:
-		blame_date_width = strlen(show_date(0, 0, &blame_date_mode)) + 1; /* add the null */
-		break;
-	case DATE_DOTTIME:
-		blame_date_width = sizeof("2006-10-19T15·00-0700");
-		break;
-	}
-	blame_date_width -= 1; /* strip the null */
-
-	if (revs.diffopt.flags.find_copies_harder)
-		opt |= (PICKAXE_BLAME_COPY | PICKAXE_BLAME_MOVE |
-			PICKAXE_BLAME_COPY_HARDER);
-
-	/*
-	 * We have collected options unknown to us in argv[1..unk]
-	 * which are to be passed to revision machinery if we are
-	 * going to do the "bottom" processing.
-	 *
-	 * The remaining are:
-	 *
-	 * (1) if dashdash_pos != 0, it is either
-	 *     "blame [revisions] -- <path>" or
-	 *     "blame -- <path> <rev>"
-	 *
-	 * (2) otherwise, it is one of the two:
-	 *     "blame [revisions] <path>"
-	 *     "blame <path> <rev>"
-	 *
-	 * Note that we must strip out <path> from the arguments: we do not
-	 * want the path pruning but we may want "bottom" processing.
-	 */
-	if (dashdash_pos) {
-		switch (argc - dashdash_pos - 1) {
-		case 2: /* (1b) */
-			if (argc != 4)
-				usage_with_options(blame_opt_usage, options);
-			/* reorder for the new way: <rev> -- <path> */
-			argv[1] = argv[3];
-			argv[3] = argv[2];
-			argv[2] = "--";
-			/* FALLTHROUGH */
-		case 1: /* (1a) */
-			path = add_prefix(prefix, argv[--argc]);
-			argv[argc] = NULL;
-			break;
-		default:
-			usage_with_options(blame_opt_usage, options);
-		}
-	} else {
-		if (argc < 2)
-			usage_with_options(blame_opt_usage, options);
-		if (argc == 3 && is_a_rev(argv[argc - 1])) { /* (2b) */
-			path = add_prefix(prefix, argv[1]);
-			argv[1] = argv[2];
-		} else {	/* (2a) */
-			if (argc == 2 && is_a_rev(argv[1]) && !get_git_work_tree())
-				die("missing <path> to blame");
-			path = add_prefix(prefix, argv[argc - 1]);
-		}
-		argv[argc - 1] = "--";
-	}
-
-	revs.disable_stdin = 1;
-	setup_revisions(argc, argv, &revs, NULL);
-	if (!revs.pending.nr && is_bare_repository()) {
-		struct commit *head_commit;
-		struct object_id head_oid;
-
-		if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
-					&head_oid, NULL) ||
-		    !(head_commit = lookup_commit_reference_gently(revs.repo,
-							     &head_oid, 1)))
-			die("no such ref: HEAD");
-
-		add_pending_object(&revs, &head_commit->object, "HEAD");
-	}
-
-	init_scoreboard(&sb);
-	sb.revs = &revs;
-	sb.contents_from = contents_from;
-	sb.reverse = reverse;
-	sb.repo = the_repository;
-	build_ignorelist(&sb, &ignore_revs_file_list, &ignore_rev_list);
-	string_list_clear(&ignore_revs_file_list, 0);
-	string_list_clear(&ignore_rev_list, 0);
-	setup_scoreboard(&sb, path, &o);
-
-	/*
-	 * Changed-path Bloom filters are disabled when looking
-	 * for copies.
-	 */
-	if (!(opt & PICKAXE_BLAME_COPY))
-		setup_blame_bloom_data(&sb, path);
-
-	lno = sb.num_lines;
-
-	if (lno && !range_list.nr)
-		string_list_append(&range_list, "1");
-
-	anchor = 1;
-	range_set_init(&ranges, range_list.nr);
-	for (range_i = 0; range_i < range_list.nr; ++range_i) {
-		long bottom, top;
-		if (parse_range_arg(range_list.items[range_i].string,
-				    nth_line_cb, &sb, lno, anchor,
-				    &bottom, &top, sb.path,
-				    the_repository->index))
-			usage(blame_usage);
-		if ((!lno && (top || bottom)) || lno < bottom)
-			die(Q_("file %s has only %lu line",
-			       "file %s has only %lu lines",
-			       lno), path, lno);
-		if (bottom < 1)
-			bottom = 1;
-		if (top < 1 || lno < top)
-			top = lno;
-		bottom--;
-		range_set_append_unsafe(&ranges, bottom, top);
-		anchor = top + 1;
-	}
-	sort_and_merge_range_set(&ranges);
-
-	for (range_i = ranges.nr; range_i > 0; --range_i) {
-		const struct range *r = &ranges.ranges[range_i - 1];
-		ent = blame_entry_prepend(ent, r->start, r->end, o);
-	}
-
-	o->suspects = ent;
-	prio_queue_put(&sb.commits, o->commit);
-
-	blame_origin_decref(o);
-
-	range_set_release(&ranges);
-	string_list_clear(&range_list, 0);
-
-	sb.ent = NULL;
-	sb.path = path;
-
-	if (blame_move_score)
-		sb.move_score = blame_move_score;
-	if (blame_copy_score)
-		sb.copy_score = blame_copy_score;
-
-	sb.debug = DEBUG_BLAME;
-	sb.on_sanity_fail = &sanity_check_on_fail;
-
-	sb.show_root = show_root;
-	sb.xdl_opts = xdl_opts;
-	sb.no_whole_file_rename = no_whole_file_rename;
-
-	read_mailmap(&mailmap, NULL);
-
-	sb.found_guilty_entry = &found_guilty_entry;
-	sb.found_guilty_entry_data = &pi;
-	if (show_progress)
-		pi.progress = start_delayed_progress(_("Blaming lines"), sb.num_lines);
-
-	assign_blame(&sb, opt);
-
-	stop_progress(&pi.progress);
-
-	if (!incremental)
-		setup_pager();
-	else
-		return 0;
-
-	blame_sort_final(&sb);
-
-	blame_coalesce(&sb);
-
-	if (!(output_option & (OUTPUT_COLOR_LINE | OUTPUT_SHOW_AGE_WITH_COLOR)))
-		output_option |= coloring_mode;
-
-	if (!(output_option & OUTPUT_PORCELAIN)) {
-		find_alignment(&sb, &output_option);
-		if (!*repeated_meta_color &&
-		    (output_option & OUTPUT_COLOR_LINE))
-			xsnprintf(repeated_meta_color,
-				  sizeof(repeated_meta_color),
-				  "%s", GIT_COLOR_CYAN);
-	}
-	if (output_option & OUTPUT_ANNOTATE_COMPAT)
-		output_option &= ~(OUTPUT_COLOR_LINE | OUTPUT_SHOW_AGE_WITH_COLOR);
-
-	output(&sb, output_option);
-	free((void *)sb.final_buf);
-	for (ent = sb.ent; ent; ) {
-		struct blame_entry *e = ent->next;
-		free(ent);
-		ent = e;
-	}
-
-	if (show_stats) {
-		printf("num read blob: %d\n", sb.num_read_blob);
-		printf("num get patch: %d\n", sb.num_get_patch);
-		printf("num commits: %d\n", sb.num_commits);
-	}
-
-	cleanup_scoreboard(&sb);
-	return 0;
-}