| /* |
| * 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" |
| |
| 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 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")), |
| { OPTION_CALLBACK, 'C', NULL, &opt, N_("score"), N_("Find line copies within and across files"), PARSE_OPT_OPTARG, blame_copy_callback }, |
| { OPTION_CALLBACK, '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; |
| } |