| /* ui-blame.c: functions for blame output |
| * |
| * Copyright (C) 2006-2017 cgit Development Team <cgit@lists.zx2c4.com> |
| * |
| * 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 "argv-array.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(struct blame_scoreboard *sb, |
| struct blame_entry *ent) |
| { |
| struct blame_origin *suspect = ent->suspect; |
| struct object_id *oid = &suspect->commit->object.oid; |
| const char *numberfmt = "<a id='n%1$d' href='#n%1$d'>%1$d</a>\n"; |
| const char *cp, *cpend; |
| |
| char *detail = emit_suspect_detail(suspect); |
| |
| html("<tr><td class='sha1 lines'>"); |
| cgit_commit_link(find_unique_abbrev(oid->hash, DEFAULT_ABBREV), detail, |
| NULL, ctx.qry.head, oid_to_hex(oid), suspect->path); |
| html("</td>\n"); |
| |
| free(detail); |
| |
| if (ctx.cfg.enable_tree_linenumbers) { |
| unsigned long lineno = ent->lno; |
| html("<td class='linenumbers'><pre>"); |
| while (lineno < ent->lno + ent->num_lines) |
| htmlf(numberfmt, ++lineno); |
| html("</pre></td>\n"); |
| } |
| |
| cp = blame_nth_line(sb, ent->lno); |
| cpend = blame_nth_line(sb, ent->lno + ent->num_lines); |
| |
| html("<td class='lines'><pre><code>"); |
| html_ntxt(cp, cpend - cp); |
| html("</code></pre></td></tr>\n"); |
| } |
| |
| struct walk_tree_context { |
| char *curr_rev; |
| int match_baselen; |
| int state; |
| }; |
| |
| static void print_object(const unsigned char *sha1, const char *path, |
| const char *basename, const char *rev) |
| { |
| enum object_type type; |
| unsigned long size; |
| struct argv_array rev_argv = ARGV_ARRAY_INIT; |
| struct rev_info revs; |
| struct blame_scoreboard sb; |
| struct blame_origin *o; |
| struct blame_entry *ent = NULL; |
| |
| type = sha1_object_info(sha1, &size); |
| if (type == OBJ_BAD) { |
| cgit_print_error_page(404, "Not found", "Bad object name: %s", |
| sha1_to_hex(sha1)); |
| return; |
| } |
| |
| argv_array_push(&rev_argv, "blame"); |
| argv_array_push(&rev_argv, rev); |
| init_revisions(&revs, NULL); |
| DIFF_OPT_SET(&revs.diffopt, ALLOW_TEXTCONV); |
| setup_revisions(rev_argv.argc, rev_argv.argv, &revs, NULL); |
| init_scoreboard(&sb); |
| sb.revs = &revs; |
| setup_scoreboard(&sb, path, &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 (", sha1_to_hex(sha1)); |
| 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("<div class='error'>blob size (%ldKB)" |
| " exceeds display size limit (%dKB).</div>", |
| size / 1024, ctx.cfg.max_blob_size); |
| return; |
| } |
| |
| html("<table class='blame blob'>"); |
| for (ent = sb.ent; ent; ) { |
| struct blame_entry *e = ent->next; |
| emit_blame_entry(&sb, ent); |
| free(ent); |
| ent = e; |
| } |
| html("</table>\n"); |
| free((void *)sb.final_buf); |
| |
| cgit_print_layout_end(); |
| } |
| |
| static int walk_tree(const unsigned char *sha1, struct strbuf *base, |
| const char *pathname, unsigned mode, int stage, |
| 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(sha1, 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.sha1; |
| 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(&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_recursive(commit->tree, "", 0, 0, &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); |
| } |