/* ui-blame.c: functions for blame output * * Copyright (C) 2006-2017 cgit Development Team * * Licensed under GNU General Public License v2 * (see COPYING for full license text) */ #include "cgit.h" #include "ui-blame.h" #include "html.h" #include "ui-shared.h" #include "strvec.h" #include "blame.h" static char *emit_suspect_detail(struct blame_origin *suspect) { struct commitinfo *info; struct strbuf detail = STRBUF_INIT; info = cgit_parse_commit(suspect->commit); strbuf_addf(&detail, "author %s", info->author); if (!ctx.cfg.noplainemail) strbuf_addf(&detail, " %s", info->author_email); strbuf_addf(&detail, " %s\n", show_date(info->author_date, info->author_tz, cgit_date_mode(DATE_ISO8601))); strbuf_addf(&detail, "committer %s", info->committer); if (!ctx.cfg.noplainemail) strbuf_addf(&detail, " %s", info->committer_email); strbuf_addf(&detail, " %s\n\n", show_date(info->committer_date, info->committer_tz, cgit_date_mode(DATE_ISO8601))); strbuf_addstr(&detail, info->subject); cgit_free_commitinfo(info); return strbuf_detach(&detail, NULL); } static void emit_blame_entry_hash(struct blame_entry *ent) { struct blame_origin *suspect = ent->suspect; struct object_id *oid = &suspect->commit->object.oid; unsigned long line = 0; char *detail = emit_suspect_detail(suspect); html(""); cgit_commit_link(find_unique_abbrev(oid, DEFAULT_ABBREV), detail, NULL, ctx.qry.head, oid_to_hex(oid), suspect->path); html(""); free(detail); while (line++ < ent->num_lines) html("\n"); } static void emit_blame_entry_linenumber(struct blame_entry *ent) { const char *numberfmt = "%1$d\n"; unsigned long lineno = ent->lno; while (lineno < ent->lno + ent->num_lines) htmlf(numberfmt, ++lineno); } static void emit_blame_entry_line_background(struct blame_scoreboard *sb, struct blame_entry *ent) { unsigned long line; size_t len, maxlen = 2; const char* pos, *endpos; for (line = ent->lno; line < ent->lno + ent->num_lines; line++) { html("\n"); pos = blame_nth_line(sb, line); endpos = blame_nth_line(sb, line + 1); len = 0; while (pos < endpos) { len++; if (*pos++ == '\t') len = (len + 7) & ~7; } if (len > maxlen) maxlen = len; } for (len = 0; len < maxlen - 1; len++) html(" "); } struct walk_tree_context { char *curr_rev; int match_baselen; int state; }; static void print_object(const struct object_id *oid, const char *path, const char *basename, const char *rev) { enum object_type type; char *buf; unsigned long size; struct strvec rev_argv = STRVEC_INIT; struct rev_info revs; struct blame_scoreboard sb; struct blame_origin *o; struct blame_entry *ent = NULL; type = oid_object_info(the_repository, oid, &size); if (type == OBJ_BAD) { cgit_print_error_page(404, "Not found", "Bad object name: %s", oid_to_hex(oid)); return; } buf = read_object_file(oid, &type, &size); if (!buf) { cgit_print_error_page(500, "Internal server error", "Error reading object %s", oid_to_hex(oid)); return; } strvec_push(&rev_argv, "blame"); strvec_push(&rev_argv, rev); init_revisions(&revs, NULL); revs.diffopt.flags.allow_textconv = 1; setup_revisions(rev_argv.nr, rev_argv.v, &revs, NULL); init_scoreboard(&sb); sb.revs = &revs; sb.repo = the_repository; sb.path = path; setup_scoreboard(&sb, &o); o->suspects = blame_entry_prepend(NULL, 0, sb.num_lines, o); prio_queue_put(&sb.commits, o->commit); blame_origin_decref(o); sb.ent = NULL; sb.path = path; assign_blame(&sb, 0); blame_sort_final(&sb); blame_coalesce(&sb); cgit_set_title_from_path(path); cgit_print_layout_start(); htmlf("blob: %s (", oid_to_hex(oid)); cgit_plain_link("plain", NULL, NULL, ctx.qry.head, rev, path); html(") ("); cgit_tree_link("tree", NULL, NULL, ctx.qry.head, rev, path); html(")\n"); if (ctx.cfg.max_blob_size && size / 1024 > ctx.cfg.max_blob_size) { htmlf("
blob size (%ldKB)" " exceeds display size limit (%dKB).
", size / 1024, ctx.cfg.max_blob_size); goto cleanup; } html("\n\n"); /* Commit hashes */ html("\n"); /* Line numbers */ if (ctx.cfg.enable_tree_linenumbers) { html("\n"); } html("\n"); html("\n
"); for (ent = sb.ent; ent; ent = ent->next) { html("
");
		emit_blame_entry_hash(ent);
		html("
"); } html("
"); for (ent = sb.ent; ent; ent = ent->next) { html("
");
			emit_blame_entry_linenumber(ent);
			html("
"); } html("
"); /* Colored bars behind lines */ html("
"); for (ent = sb.ent; ent; ) { struct blame_entry *e = ent->next; html("
");
		emit_blame_entry_line_background(&sb, ent);
		html("
"); free(ent); ent = e; } html("
"); free((void *)sb.final_buf); /* Lines */ html("
");
	if (ctx.repo->source_filter) {
		char *filter_arg = xstrdup(basename);
		cgit_open_filter(ctx.repo->source_filter, filter_arg);
		html_raw(buf, size);
		cgit_close_filter(ctx.repo->source_filter);
		free(filter_arg);
	} else {
		html_txt(buf);
	}
	html("
"); html("
\n"); cgit_print_layout_end(); cleanup: free(buf); } static int walk_tree(const struct object_id *oid, struct strbuf *base, const char *pathname, unsigned mode, void *cbdata) { struct walk_tree_context *walk_tree_ctx = cbdata; if (base->len == walk_tree_ctx->match_baselen) { if (S_ISREG(mode)) { struct strbuf buffer = STRBUF_INIT; strbuf_addbuf(&buffer, base); strbuf_addstr(&buffer, pathname); print_object(oid, buffer.buf, pathname, walk_tree_ctx->curr_rev); strbuf_release(&buffer); walk_tree_ctx->state = 1; } else if (S_ISDIR(mode)) { walk_tree_ctx->state = 2; } } else if (base->len < INT_MAX && (int)base->len > walk_tree_ctx->match_baselen) { walk_tree_ctx->state = 2; } else if (S_ISDIR(mode)) { return READ_TREE_RECURSIVE; } return 0; } static int basedir_len(const char *path) { char *p = strrchr(path, '/'); if (p) return p - path + 1; return 0; } void cgit_print_blame(void) { const char *rev = ctx.qry.oid; struct object_id oid; struct commit *commit; struct pathspec_item path_items = { .match = ctx.qry.path, .len = ctx.qry.path ? strlen(ctx.qry.path) : 0 }; struct pathspec paths = { .nr = 1, .items = &path_items }; struct walk_tree_context walk_tree_ctx = { .state = 0 }; if (!rev) rev = ctx.qry.head; if (get_oid(rev, &oid)) { cgit_print_error_page(404, "Not found", "Invalid revision name: %s", rev); return; } commit = lookup_commit_reference(the_repository, &oid); if (!commit || parse_commit(commit)) { cgit_print_error_page(404, "Not found", "Invalid commit reference: %s", rev); return; } walk_tree_ctx.curr_rev = xstrdup(rev); walk_tree_ctx.match_baselen = (path_items.match) ? basedir_len(path_items.match) : -1; read_tree(the_repository, repo_get_commit_tree(the_repository, commit), &paths, walk_tree, &walk_tree_ctx); if (!walk_tree_ctx.state) cgit_print_error_page(404, "Not found", "Not found"); else if (walk_tree_ctx.state == 2) cgit_print_error_page(404, "No blame for folders", "Blame is not available for folders."); free(walk_tree_ctx.curr_rev); }