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![Denton Liu](/assets/img/avatar_default.png)
In the codebase, there are many options which use OPTION_CALLBACK in a plain ol' struct definition. However, we have the OPT_CALLBACK and OPT_CALLBACK_F macros which are meant to abstract these plain struct definitions away. These macros are useful as they semantically signal to developers that these are just normal callback option with nothing fancy happening. Replace plain struct definitions of OPTION_CALLBACK with OPT_CALLBACK or OPT_CALLBACK_F where applicable. The heavy lifting was done using the following (disgusting) shell script: #!/bin/sh do_replacement () { tr '\n' '\r' | sed -e 's/{\s*OPTION_CALLBACK,\s*\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\s*0,\(\s*[^[:space:]}]*\)\s*}/OPT_CALLBACK(\1,\2,\3,\4,\5,\6)/g' | sed -e 's/{\s*OPTION_CALLBACK,\s*\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\(\s*[^[:space:]}]*\)\s*}/OPT_CALLBACK_F(\1,\2,\3,\4,\5,\6,\7)/g' | tr '\r' '\n' } for f in $(git ls-files \*.c) do do_replacement <"$f" >"$f.tmp" mv "$f.tmp" "$f" done The result was manually inspected and then reformatted to match the style of the surrounding code. Finally, using `git grep OPTION_CALLBACK \*.c`, leftover results which were not handled by the script were manually transformed. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1169 lines
32 KiB
C
1169 lines
32 KiB
C
/*
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* Blame
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*
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* Copyright (c) 2006, 2014 by its authors
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* See COPYING for licensing conditions
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*/
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#include "cache.h"
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#include "config.h"
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#include "color.h"
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#include "builtin.h"
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#include "repository.h"
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#include "commit.h"
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#include "diff.h"
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#include "revision.h"
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#include "quote.h"
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#include "string-list.h"
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#include "mailmap.h"
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#include "parse-options.h"
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#include "prio-queue.h"
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#include "utf8.h"
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#include "userdiff.h"
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#include "line-range.h"
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#include "line-log.h"
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#include "dir.h"
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#include "progress.h"
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#include "object-store.h"
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#include "blame.h"
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#include "refs.h"
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static char blame_usage[] = N_("git blame [<options>] [<rev-opts>] [<rev>] [--] <file>");
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static const char *blame_opt_usage[] = {
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blame_usage,
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"",
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N_("<rev-opts> are documented in git-rev-list(1)"),
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NULL
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};
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static int longest_file;
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static int longest_author;
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static int max_orig_digits;
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static int max_digits;
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static int max_score_digits;
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static int show_root;
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static int reverse;
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static int blank_boundary;
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static int incremental;
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static int xdl_opts;
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static int abbrev = -1;
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static int no_whole_file_rename;
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static int show_progress;
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static char repeated_meta_color[COLOR_MAXLEN];
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static int coloring_mode;
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static struct string_list ignore_revs_file_list = STRING_LIST_INIT_NODUP;
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static int mark_unblamable_lines;
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static int mark_ignored_lines;
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static struct date_mode blame_date_mode = { DATE_ISO8601 };
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static size_t blame_date_width;
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static struct string_list mailmap = STRING_LIST_INIT_NODUP;
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#ifndef DEBUG_BLAME
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#define DEBUG_BLAME 0
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#endif
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static unsigned blame_move_score;
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static unsigned blame_copy_score;
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/* Remember to update object flag allocation in object.h */
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#define METAINFO_SHOWN (1u<<12)
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#define MORE_THAN_ONE_PATH (1u<<13)
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struct progress_info {
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struct progress *progress;
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int blamed_lines;
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};
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static const char *nth_line_cb(void *data, long lno)
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{
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return blame_nth_line((struct blame_scoreboard *)data, lno);
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}
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/*
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* Information on commits, used for output.
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*/
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struct commit_info {
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struct strbuf author;
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struct strbuf author_mail;
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timestamp_t author_time;
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struct strbuf author_tz;
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/* filled only when asked for details */
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struct strbuf committer;
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struct strbuf committer_mail;
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timestamp_t committer_time;
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struct strbuf committer_tz;
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struct strbuf summary;
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};
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/*
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* Parse author/committer line in the commit object buffer
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*/
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static void get_ac_line(const char *inbuf, const char *what,
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struct strbuf *name, struct strbuf *mail,
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timestamp_t *time, struct strbuf *tz)
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{
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struct ident_split ident;
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size_t len, maillen, namelen;
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char *tmp, *endp;
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const char *namebuf, *mailbuf;
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tmp = strstr(inbuf, what);
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if (!tmp)
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goto error_out;
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tmp += strlen(what);
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endp = strchr(tmp, '\n');
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if (!endp)
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len = strlen(tmp);
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else
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len = endp - tmp;
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if (split_ident_line(&ident, tmp, len)) {
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error_out:
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/* Ugh */
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tmp = "(unknown)";
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strbuf_addstr(name, tmp);
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strbuf_addstr(mail, tmp);
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strbuf_addstr(tz, tmp);
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*time = 0;
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return;
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}
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namelen = ident.name_end - ident.name_begin;
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namebuf = ident.name_begin;
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maillen = ident.mail_end - ident.mail_begin;
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mailbuf = ident.mail_begin;
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if (ident.date_begin && ident.date_end)
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*time = strtoul(ident.date_begin, NULL, 10);
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else
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*time = 0;
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if (ident.tz_begin && ident.tz_end)
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strbuf_add(tz, ident.tz_begin, ident.tz_end - ident.tz_begin);
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else
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strbuf_addstr(tz, "(unknown)");
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/*
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* Now, convert both name and e-mail using mailmap
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*/
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map_user(&mailmap, &mailbuf, &maillen,
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&namebuf, &namelen);
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strbuf_addf(mail, "<%.*s>", (int)maillen, mailbuf);
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strbuf_add(name, namebuf, namelen);
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}
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static void commit_info_init(struct commit_info *ci)
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{
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strbuf_init(&ci->author, 0);
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strbuf_init(&ci->author_mail, 0);
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strbuf_init(&ci->author_tz, 0);
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strbuf_init(&ci->committer, 0);
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strbuf_init(&ci->committer_mail, 0);
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strbuf_init(&ci->committer_tz, 0);
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strbuf_init(&ci->summary, 0);
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}
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static void commit_info_destroy(struct commit_info *ci)
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{
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strbuf_release(&ci->author);
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strbuf_release(&ci->author_mail);
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strbuf_release(&ci->author_tz);
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strbuf_release(&ci->committer);
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strbuf_release(&ci->committer_mail);
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strbuf_release(&ci->committer_tz);
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strbuf_release(&ci->summary);
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}
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static void get_commit_info(struct commit *commit,
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struct commit_info *ret,
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int detailed)
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{
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int len;
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const char *subject, *encoding;
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const char *message;
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commit_info_init(ret);
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encoding = get_log_output_encoding();
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message = logmsg_reencode(commit, NULL, encoding);
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get_ac_line(message, "\nauthor ",
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&ret->author, &ret->author_mail,
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&ret->author_time, &ret->author_tz);
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if (!detailed) {
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unuse_commit_buffer(commit, message);
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return;
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}
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get_ac_line(message, "\ncommitter ",
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&ret->committer, &ret->committer_mail,
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&ret->committer_time, &ret->committer_tz);
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len = find_commit_subject(message, &subject);
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if (len)
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strbuf_add(&ret->summary, subject, len);
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else
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strbuf_addf(&ret->summary, "(%s)", oid_to_hex(&commit->object.oid));
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unuse_commit_buffer(commit, message);
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}
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/*
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* Write out any suspect information which depends on the path. This must be
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* handled separately from emit_one_suspect_detail(), because a given commit
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* may have changes in multiple paths. So this needs to appear each time
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* we mention a new group.
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*
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* To allow LF and other nonportable characters in pathnames,
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* they are c-style quoted as needed.
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*/
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static void write_filename_info(struct blame_origin *suspect)
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{
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if (suspect->previous) {
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struct blame_origin *prev = suspect->previous;
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printf("previous %s ", oid_to_hex(&prev->commit->object.oid));
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write_name_quoted(prev->path, stdout, '\n');
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}
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printf("filename ");
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write_name_quoted(suspect->path, stdout, '\n');
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}
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/*
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* Porcelain/Incremental format wants to show a lot of details per
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* commit. Instead of repeating this every line, emit it only once,
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* the first time each commit appears in the output (unless the
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* user has specifically asked for us to repeat).
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*/
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static int emit_one_suspect_detail(struct blame_origin *suspect, int repeat)
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{
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struct commit_info ci;
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if (!repeat && (suspect->commit->object.flags & METAINFO_SHOWN))
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return 0;
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suspect->commit->object.flags |= METAINFO_SHOWN;
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get_commit_info(suspect->commit, &ci, 1);
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printf("author %s\n", ci.author.buf);
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printf("author-mail %s\n", ci.author_mail.buf);
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printf("author-time %"PRItime"\n", ci.author_time);
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printf("author-tz %s\n", ci.author_tz.buf);
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printf("committer %s\n", ci.committer.buf);
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printf("committer-mail %s\n", ci.committer_mail.buf);
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printf("committer-time %"PRItime"\n", ci.committer_time);
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printf("committer-tz %s\n", ci.committer_tz.buf);
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printf("summary %s\n", ci.summary.buf);
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if (suspect->commit->object.flags & UNINTERESTING)
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printf("boundary\n");
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commit_info_destroy(&ci);
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return 1;
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}
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/*
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* The blame_entry is found to be guilty for the range.
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* Show it in incremental output.
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*/
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static void found_guilty_entry(struct blame_entry *ent, void *data)
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{
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struct progress_info *pi = (struct progress_info *)data;
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if (incremental) {
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struct blame_origin *suspect = ent->suspect;
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printf("%s %d %d %d\n",
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oid_to_hex(&suspect->commit->object.oid),
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ent->s_lno + 1, ent->lno + 1, ent->num_lines);
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emit_one_suspect_detail(suspect, 0);
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write_filename_info(suspect);
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maybe_flush_or_die(stdout, "stdout");
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}
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pi->blamed_lines += ent->num_lines;
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display_progress(pi->progress, pi->blamed_lines);
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}
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static const char *format_time(timestamp_t time, const char *tz_str,
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int show_raw_time)
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{
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static struct strbuf time_buf = STRBUF_INIT;
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strbuf_reset(&time_buf);
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if (show_raw_time) {
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strbuf_addf(&time_buf, "%"PRItime" %s", time, tz_str);
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}
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else {
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const char *time_str;
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size_t time_width;
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int tz;
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tz = atoi(tz_str);
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time_str = show_date(time, tz, &blame_date_mode);
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strbuf_addstr(&time_buf, time_str);
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/*
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* Add space paddings to time_buf to display a fixed width
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* string, and use time_width for display width calibration.
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*/
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for (time_width = utf8_strwidth(time_str);
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time_width < blame_date_width;
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time_width++)
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strbuf_addch(&time_buf, ' ');
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}
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return time_buf.buf;
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}
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#define OUTPUT_ANNOTATE_COMPAT (1U<<0)
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#define OUTPUT_LONG_OBJECT_NAME (1U<<1)
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#define OUTPUT_RAW_TIMESTAMP (1U<<2)
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#define OUTPUT_PORCELAIN (1U<<3)
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#define OUTPUT_SHOW_NAME (1U<<4)
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#define OUTPUT_SHOW_NUMBER (1U<<5)
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#define OUTPUT_SHOW_SCORE (1U<<6)
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#define OUTPUT_NO_AUTHOR (1U<<7)
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#define OUTPUT_SHOW_EMAIL (1U<<8)
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#define OUTPUT_LINE_PORCELAIN (1U<<9)
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#define OUTPUT_COLOR_LINE (1U<<10)
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#define OUTPUT_SHOW_AGE_WITH_COLOR (1U<<11)
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static void emit_porcelain_details(struct blame_origin *suspect, int repeat)
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{
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if (emit_one_suspect_detail(suspect, repeat) ||
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(suspect->commit->object.flags & MORE_THAN_ONE_PATH))
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write_filename_info(suspect);
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}
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static void emit_porcelain(struct blame_scoreboard *sb, struct blame_entry *ent,
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int opt)
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{
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int repeat = opt & OUTPUT_LINE_PORCELAIN;
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int cnt;
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const char *cp;
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struct blame_origin *suspect = ent->suspect;
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char hex[GIT_MAX_HEXSZ + 1];
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oid_to_hex_r(hex, &suspect->commit->object.oid);
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printf("%s %d %d %d\n",
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hex,
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ent->s_lno + 1,
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ent->lno + 1,
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ent->num_lines);
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emit_porcelain_details(suspect, repeat);
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cp = blame_nth_line(sb, ent->lno);
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for (cnt = 0; cnt < ent->num_lines; cnt++) {
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char ch;
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if (cnt) {
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printf("%s %d %d\n", hex,
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ent->s_lno + 1 + cnt,
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ent->lno + 1 + cnt);
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if (repeat)
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emit_porcelain_details(suspect, 1);
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}
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putchar('\t');
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do {
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ch = *cp++;
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putchar(ch);
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} while (ch != '\n' &&
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cp < sb->final_buf + sb->final_buf_size);
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}
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if (sb->final_buf_size && cp[-1] != '\n')
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putchar('\n');
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}
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static struct color_field {
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timestamp_t hop;
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char col[COLOR_MAXLEN];
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} *colorfield;
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static int colorfield_nr, colorfield_alloc;
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static void parse_color_fields(const char *s)
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{
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struct string_list l = STRING_LIST_INIT_DUP;
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struct string_list_item *item;
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enum { EXPECT_DATE, EXPECT_COLOR } next = EXPECT_COLOR;
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colorfield_nr = 0;
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/* Ideally this would be stripped and split at the same time? */
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string_list_split(&l, s, ',', -1);
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ALLOC_GROW(colorfield, colorfield_nr + 1, colorfield_alloc);
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for_each_string_list_item(item, &l) {
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switch (next) {
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case EXPECT_DATE:
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colorfield[colorfield_nr].hop = approxidate(item->string);
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next = EXPECT_COLOR;
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colorfield_nr++;
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ALLOC_GROW(colorfield, colorfield_nr + 1, colorfield_alloc);
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break;
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case EXPECT_COLOR:
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if (color_parse(item->string, colorfield[colorfield_nr].col))
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die(_("expecting a color: %s"), item->string);
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next = EXPECT_DATE;
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break;
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}
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}
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if (next == EXPECT_COLOR)
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die(_("must end with a color"));
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colorfield[colorfield_nr].hop = TIME_MAX;
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string_list_clear(&l, 0);
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}
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static void setup_default_color_by_age(void)
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{
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parse_color_fields("blue,12 month ago,white,1 month ago,red");
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}
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|
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static void determine_line_heat(struct blame_entry *ent, const char **dest_color)
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{
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int i = 0;
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struct commit_info ci;
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get_commit_info(ent->suspect->commit, &ci, 1);
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|
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while (i < colorfield_nr && ci.author_time > colorfield[i].hop)
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i++;
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*dest_color = colorfield[i].col;
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}
|
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|
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static void emit_other(struct blame_scoreboard *sb, struct blame_entry *ent, int opt)
|
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{
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int cnt;
|
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const char *cp;
|
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struct blame_origin *suspect = ent->suspect;
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struct commit_info ci;
|
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char hex[GIT_MAX_HEXSZ + 1];
|
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int show_raw_time = !!(opt & OUTPUT_RAW_TIMESTAMP);
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const char *default_color = NULL, *color = NULL, *reset = NULL;
|
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|
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get_commit_info(suspect->commit, &ci, 1);
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oid_to_hex_r(hex, &suspect->commit->object.oid);
|
|
|
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cp = blame_nth_line(sb, ent->lno);
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|
|
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if (opt & OUTPUT_SHOW_AGE_WITH_COLOR) {
|
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determine_line_heat(ent, &default_color);
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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 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(&sb->ignore_list, i->string);
|
|
}
|
|
for_each_string_list_item(i, ignore_rev_list) {
|
|
if (get_oid_committish(i->string, &oid))
|
|
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_("Show blank SHA-1 for 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;
|
|
}
|
|
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);
|
|
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 = π
|
|
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);
|
|
}
|
|
return 0;
|
|
}
|