diff options
Diffstat (limited to 'third_party/git/builtin/blame.c')
| -rw-r--r-- | third_party/git/builtin/blame.c | 1204 |
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 = 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); - } - - cleanup_scoreboard(&sb); - return 0; -} |