╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 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🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭0979dd00..╮ 0979dd00.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (660) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
.. embed/ event/ test/ ui/ command.zig diff3.zig event.zig find.zig fork.zig lib.zig main.zig main_wasm.zig markdown.zig patch.zig progress.zig push.zig search.zig search_commit.zig search_thread.zig serve.zig serve_common.zig serve_http.zig serve_ssh.zig serve_ssh_protocol.zig test.zig testnet.zig try.zig ╭─────────────────────────────────╮ │ui.zig │ ╰─────────────────────────────────╯ web.zig
1721 route.repo_files.path = Array(repo_route_max_len).from(dir) orelse return null; 1722 } 1723 return route; 1724 } 1725 if (std.mem.eql(u8, tab, commits_seg)) { 1726 params.scanPairs(&segments) catch return null; 1727 if (params.values.get(.merge)) |oid| { 1728 if (!params.only(&.{.merge}) or segments.next() != null) return null; 1729 return repoCommitsMergeRoute(pair, oid); 1730 } 1731 if (!params.only(&.{ .branch, .tag, .object, .base, .search, .from })) return null; 1732 const base_oid = params.values.get(.base) orelse ""; 1733 const search = params.values.get(.search) orelse ""; 1734 const from = params.values.get(.from) orelse ""; 1735 const ref = (params.ref() catch return null) orelse { 1736 if (search.len != 0 or from.len != 0 or segments.rest().len != 0) return null; 1737 return repoCommitsRoute(pair, null, "", base_oid); 1738 }; 1739 // the index covers branch and tag tips, so only they can be 1740 // searched or paged by commit; an object roots the list itself 1741 if ((search.len != 0 or from.len != 0) and ref.kind == .object) return null; 1742 var route = if (std.mem.eql(u8, segments.rest(), message_seg)) 1743 repoCommitMessageRoute(pair, ref.kind, ref.value, base_oid) orelse return null 1744 else if (segments.rest().len == 0) 1745 repoCommitsRoute(pair, ref.kind, ref.value, base_oid) orelse return null 1746 else 1747 return null; 1748 if (search.len != 0) route.repo_commits.search = Array(search_route_max_len).from(search) orelse return null; 1749 if (from.len != 0) route.repo_commits.from = Array(ref_route_max_len).from(from) orelse return null; 1750 return route; 1751 } 1752 if (std.mem.eql(u8, tab, "diff")) { 1753 params.scanPairs(&segments) catch return null; 1754 if (params.values.get(.patchrev)) |id| { 1755 if (!params.only(&.{ .start, .patchrev })) return null; 1756 return repoPatchRevDiffRoute(pair, id, params.start() orelse return null, pathValue(segments.rest()) orelse return null); 1757 } 1758 if (!params.only(&.{ .start, .branch, .tag, .object, .base })) return null; 1759 const base_oid = params.values.get(.base) orelse return null; 1760 const start = params.start() orelse return null; 1761 const ref = params.ref() catch return null; 1762 const file = pathValue(segments.rest()) orelse return null; 1763 return repoDiffRoute(pair, if (ref) |r| r.kind else null, if (ref) |r| r.value else "", start, file, base_oid); 1764 } 1765 return null; // unknown sub-path 1766 } 1767 1768 pub fn eql(a: RoutablePage, b: RoutablePage) bool { 1769 if (std.meta.activeTag(a) != std.meta.activeTag(b)) return false; 1770 return switch (a) { 1771 .home_users => |a_u| a_u.start == b.home_users.start and std.mem.eql(u8, a_u.search.slice(), b.home_users.search.slice()), 1772 .user_repos => |a_u| std.mem.eql(u8, a_u.name.slice(), b.user_repos.name.slice()) and a_u.start == b.user_repos.start and std.mem.eql(u8, a_u.search.slice(), b.user_repos.search.slice()), 1773 .user_forks => |a_u| std.mem.eql(u8, a_u.name.slice(), b.user_forks.name.slice()) and a_u.start == b.user_forks.start, 1774 .user_repo_new => |a_name| std.mem.eql(u8, a_name.slice(), b.user_repo_new.slice()), 1775 .user_user_new => |a_name| std.mem.eql(u8, a_name.slice(), b.user_user_new.slice()), 1776 .user_user => |a_name| std.mem.eql(u8, a_name.slice(), b.user_user.slice()), 1777 .repo_files => |a_f| std.mem.eql(u8, a_f.name.slice(), b.repo_files.name.slice()) and 1778 a_f.ref_kind == b.repo_files.ref_kind and 1779 std.mem.eql(u8, a_f.ref_value.slice(), b.repo_files.ref_value.slice()) and 1780 std.mem.eql(u8, a_f.patchrev_id.slice(), b.repo_files.patchrev_id.slice()) and 1781 std.mem.eql(u8, a_f.find.slice(), b.repo_files.find.slice()) and 1782 std.mem.eql(u8, a_f.path.slice(), b.repo_files.path.slice()) and 1783 a_f.line == b.repo_files.line, 1784 .repo_commits => |a_c| std.mem.eql(u8, a_c.name.slice(), b.repo_commits.name.slice()) and 1785 a_c.ref_or_oid == b.repo_commits.ref_or_oid and 1786 std.mem.eql(u8, a_c.value.slice(), b.repo_commits.value.slice()) and 1787 std.mem.eql(u8, a_c.base_oid.slice(), b.repo_commits.base_oid.slice()) and 1788 std.mem.eql(u8, a_c.search.slice(), b.repo_commits.search.slice()) and 1789 std.mem.eql(u8, a_c.from.slice(), b.repo_commits.from.slice()) and 1790 std.mem.eql(u8, a_c.merge.slice(), b.repo_commits.merge.slice()) and 1791 a_c.message == b.repo_commits.message, 1792 .repo_diff => |a_d| std.mem.eql(u8, a_d.name.slice(), b.repo_diff.name.slice()) and 1793 a_d.ref_or_oid == b.repo_diff.ref_or_oid and 1794 std.mem.eql(u8, a_d.value.slice(), b.repo_diff.value.slice()) and 1795 std.mem.eql(u8, a_d.base_oid.slice(), b.repo_diff.base_oid.slice()) and 1796 std.mem.eql(u8, a_d.patchrev_id.slice(), b.repo_diff.patchrev_id.slice()) and 1797 a_d.start == b.repo_diff.start and std.mem.eql(u8, a_d.path.slice(), b.repo_diff.path.slice()), 1798 .repo_refs => |a_r| std.mem.eql(u8, a_r.name.slice(), b.repo_refs.name.slice()) and a_r.kind == b.repo_refs.kind and std.mem.eql(u8, a_r.from.slice(), b.repo_refs.from.slice()) and std.mem.eql(u8, a_r.search.slice(), b.repo_refs.search.slice()), 1799 .repo_issues => |a_i| std.mem.eql(u8, a_i.name.slice(), b.repo_issues.name.slice()) and 1800 std.mem.eql(u8, a_i.label.slice(), b.repo_issues.label.slice()) and 1801 std.mem.eql(u8, a_i.search.slice(), b.repo_issues.search.slice()) and 1802 std.mem.eql(u8, a_i.selected.slice(), b.repo_issues.selected.slice()) and 1803 std.mem.eql(u8, a_i.theirs.slice(), b.repo_issues.theirs.slice()) and 1804 a_i.view == b.repo_issues.view and 1805 a_i.comments_start == b.repo_issues.comments_start and 1806 std.mem.eql(u8, a_i.comment.slice(), b.repo_issues.comment.slice()), 1807 .repo_discussions => |a_t| std.mem.eql(u8, a_t.name.slice(), b.repo_discussions.name.slice()) and 1808 std.mem.eql(u8, a_t.label.slice(), b.repo_discussions.label.slice()) and 1809 std.mem.eql(u8, a_t.search.slice(), b.repo_discussions.search.slice()) and 1810 std.mem.eql(u8, a_t.selected.slice(), b.repo_discussions.selected.slice()) and 1811 a_t.view == b.repo_discussions.view and 1812 a_t.comments_start == b.repo_discussions.comments_start and 1813 std.mem.eql(u8, a_t.comment.slice(), b.repo_discussions.comment.slice()), 1814 .repo_patches => |a_p| std.mem.eql(u8, a_p.name.slice(), b.repo_patches.name.slice()) and 1815 std.mem.eql(u8, a_p.label.slice(), b.repo_patches.label.slice()) and 1816 std.mem.eql(u8, a_p.search.slice(), b.repo_patches.search.slice()) and 1817 std.mem.eql(u8, a_p.selected.slice(), b.repo_patches.selected.slice()) and 1818 std.mem.eql(u8, a_p.theirs.slice(), b.repo_patches.theirs.slice()) and 1819 a_p.view == b.repo_patches.view and 1820 a_p.comments_start == b.repo_patches.comments_start and 1821 std.mem.eql(u8, a_p.comment.slice(), b.repo_patches.comment.slice()), 1822 .repo_undo => |a_u| std.mem.eql(u8, a_u.name.slice(), b.repo_undo.name.slice()) and 1823 a_u.index == b.repo_undo.index and 1824 a_u.clear == b.repo_undo.clear, 1825 .repo_events => |a_e| std.mem.eql(u8, a_e.name.slice(), b.repo_events.name.slice()) and 1826 a_e.view == b.repo_events.view and 1827 a_e.moment == b.repo_events.moment and 1828 a_e.kind == b.repo_events.kind and 1829 std.mem.eql(u8, a_e.selected.slice(), b.repo_events.selected.slice()), 1830 .repo_repo_new => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_repo_new.slice()), 1831 .repo_user_new => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_user_new.slice()), 1832 .repo_settings => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_settings.slice()), 1833 .repo_roles => |a_r| std.mem.eql(u8, a_r.name.slice(), b.repo_roles.name.slice()) and 1834 a_r.start == b.repo_roles.start and 1835 std.mem.eql(u8, a_r.user.slice(), b.repo_roles.user.slice()), 1836 .repo_user => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_user.slice()), 1837 .fork_patch => |a_f| std.mem.eql(u8, a_f.name.slice(), b.fork_patch.name.slice()) and std.mem.eql(u8, a_f.id.slice(), b.fork_patch.id.slice()), 1838 .fork_diff => |a_d| std.mem.eql(u8, a_d.fork.name.slice(), b.fork_diff.fork.name.slice()) and 1839 std.mem.eql(u8, a_d.fork.id.slice(), b.fork_diff.fork.id.slice()) and 1840 std.mem.eql(u8, a_d.oid.slice(), b.fork_diff.oid.slice()) and 1841 std.mem.eql(u8, a_d.base_oid.slice(), b.fork_diff.base_oid.slice()) and 1842 a_d.start == b.fork_diff.start and std.mem.eql(u8, a_d.path.slice(), b.fork_diff.path.slice()), 1843 .fork_files => |a_f| std.mem.eql(u8, a_f.fork.name.slice(), b.fork_files.fork.name.slice()) and 1844 std.mem.eql(u8, a_f.fork.id.slice(), b.fork_files.fork.id.slice()) and 1845 std.mem.eql(u8, a_f.oid.slice(), b.fork_files.oid.slice()) and 1846 std.mem.eql(u8, a_f.find.slice(), b.fork_files.find.slice()) and 1847 std.mem.eql(u8, a_f.path.slice(), b.fork_files.path.slice()) and 1848 a_f.line == b.fork_files.line, 1849 .fork_commits => |a_c| std.mem.eql(u8, a_c.fork.name.slice(), b.fork_commits.fork.name.slice()) and 1850 std.mem.eql(u8, a_c.fork.id.slice(), b.fork_commits.fork.id.slice()) and 1851 std.mem.eql(u8, a_c.oid.slice(), b.fork_commits.oid.slice()) and 1852 a_c.message == b.fork_commits.message, 1853 .fork_repo_new => |a_f| std.mem.eql(u8, a_f.name.slice(), b.fork_repo_new.name.slice()) and std.mem.eql(u8, a_f.id.slice(), b.fork_repo_new.id.slice()), 1854 .fork_user_new => |a_f| std.mem.eql(u8, a_f.name.slice(), b.fork_user_new.name.slice()) and std.mem.eql(u8, a_f.id.slice(), b.fork_user_new.id.slice()), 1855 .fork_user => |a_f| std.mem.eql(u8, a_f.name.slice(), b.fork_user.name.slice()) and std.mem.eql(u8, a_f.id.slice(), b.fork_user.id.slice()), 1856 else => true, 1857 }; 1858 } 1859 1860 // true when following a link from `b` to `a` (both repo routes) should reload 1861 // rather than stay in page 1862 pub fn repoPageChanged(a: RoutablePage, b: RoutablePage) bool { 1863 if (a.parent() != .repo or b.parent() != .repo) return false; 1864 if (std.meta.activeTag(a) == .repo_refs and std.meta.activeTag(b) == .repo_refs and 1865 a.repo_refs.from.len == 0 and b.repo_refs.from.len == 0) 1866 return !std.mem.eql(u8, a.repo_refs.name.slice(), b.repo_refs.name.slice()); 1867 return !a.eql(b); 1868 } 1869 1870 pub fn forkPageChanged(a: RoutablePage, b: RoutablePage) bool { 1871 return a.parent() == .fork and b.parent() == .fork and !a.eql(b); 1872 } 1873 1874 // true when `a` and `b` are the same user paginated to a different repos 1875 // window or search. switching between a user's tabs is in-page, so only a 1876 // changed `start` or search on the same list navigates. 1877 pub fn userPageChanged(a: RoutablePage, b: RoutablePage) bool { 1878 return switch (a) { 1879 .user_repos => |aa| switch (b) { 1880 .user_repos => |bb| std.mem.eql(u8, aa.name.slice(), bb.name.slice()) and !a.eql(b), 1881 else => false, 1882 }, 1883 .user_forks => |aa| switch (b) { 1884 .user_forks => |bb| std.mem.eql(u8, aa.name.slice(), bb.name.slice()) and aa.start != bb.start, 1885 else => false, 1886 }, 1887 else => false, 1888 }; 1889 } 1890 1891 // true when `a` and `b` are the same home list tab paginated to a different 1892 // window or search. switching tabs is in-page, so only a changed `start` or 1893 // search on the same tab navigates. 1894 pub fn homePageChanged(a: RoutablePage, b: RoutablePage) bool { 1895 return switch (a) { 1896 .home_users => switch (b) { 1897 .home_users => !a.eql(b), 1898 else => false, 1899 }, 1900 else => false, 1901 }; 1902 } 1903 }; 1904 1905 // a `RefOrOid` resolved against an on-disk repo to the commit oid it points at 1906 fn isUnreserved(c: u8) bool { 1907 return std.ascii.isAlphanumeric(c) or c == '-' or c == '.' or c == '_' or c == '~'; 1908 } 1909 1910 // percent-encode a ref name for use as a single url path segment. 1911 pub fn urlEncodeRef(aa: std.mem.Allocator, raw: []const u8) ![]const u8 { 1912 var out: std.Io.Writer.Allocating = .init(aa); 1913 try std.Uri.Component.percentEncode(&out.writer, raw, isUnreserved); 1914 return out.written(); 1915 } 1916 1917 // a resolved ref/oid for a repo opened with `repo_kind`/`repo_opts` 1918 pub fn ResolvedRefOrOid(comptime repo_kind: rp.RepoKind, comptime repo_opts: rp.RepoOpts(repo_kind)) type { 1919 return struct { 1920 pub const hex_len = hash.hexLen(repo_opts.hash); 1921 1922 // the concrete ref/oid (a null request resolves to the default branch) 1923 ref_or_oid: RoutablePage.RefOrOid, 1924 // its branch/tag name or oid, url-encoded (ref names may contain '/', so 1925 // the route layer — which splits on '/' — stores them encoded). duped 1926 // into `aa`. 1927 value: []const u8, 1928 // the commit oid it points at 1929 oid: [hex_len]u8, 1930 1931 const Self = @This(); 1932 1933 // resolve a requested ref/oid (null = the repo's default branch) to a 1934 // concrete ref/oid plus the commit oid it points at. `requested_value` is 1935 // the url-encoded form (as it appears in the route). null when it doesn't 1936 // resolve (an unknown branch/tag, or a malformed/unknown oid). 1937 pub fn init( 1938 repo: *rp.Repo(repo_kind, repo_opts), 1939 io: std.Io, 1940 aa: std.mem.Allocator, 1941 requested_ref_or_oid: ?RoutablePage.RefOrOid, 1942 requested_value: []const u8, 1943 ) !?Self { 1944 var ref_or_oid: RoutablePage.RefOrOid = requested_ref_or_oid orelse .branch; 1945 // the decoded ref name / oid to look up. a named ref arrives url-encoded. 1946 var value: []const u8 = if (requested_ref_or_oid == null) 1947 requested_value 1948 else 1949 std.Uri.percentDecodeInPlace(try aa.dupe(u8, requested_value)); 1950 // no ref named: fall back to HEAD's branch (or its oid when detached). 1951 var head_buf: [rf.MAX_REF_CONTENT_SIZE]u8 = undefined; 1952 if (requested_ref_or_oid == null) { 1953 if (repo.head(io, &head_buf)) |head| switch (head) { 1954 .ref => |r| { 1955 ref_or_oid = .branch; 1956 value = r.name; 1957 }, 1958 .oid => |o| { 1959 ref_or_oid = .object; 1960 value = o; 1961 }, 1962 } else |_| {} 1963 } 1964 1965 var oid: [hex_len]u8 = undefined; 1966 switch (ref_or_oid) { 1967 .object => { 1968 if (value.len != hex_len) return null; 1969 @memcpy(&oid, value); 1970 }, 1971 .branch, .tag => { 1972 const ref_kind: rf.RefKind = if (ref_or_oid == .branch) .head else .tag; 1973 oid = (repo.readRef(io, .{ .kind = ref_kind, .name = value }) catch null) orelse return null; 1974 }, 1975 } 1976 // store url-encoded so the route layer can hold the value verbatim. 1977 return .{ .ref_or_oid = ref_or_oid, .value = try urlEncodeRef(aa, value), .oid = oid }; 1978 } 1979 }; 1980 } 1981 1982 // who a repo page is built for, which picks the actions it shows 1983 pub const Viewer = struct { 1984 role: evt.Repo.Role, 1985 email: []const u8, 1986 1987 // the session's viewer of a repo it holds `role` in, or null when logged 1988 // out. local mode owns everything. 1989 pub fn init(session: *Session, arena: *std.heap.ArenaAllocator, role: evt.Repo.Role) !?Viewer { 1990 if (session.data.host_kind == .local) return .{ .role = .owner, .email = "" }; 1991 const user_id = session.userId() orelse return null; 1992 const moment = session.haxy_moment orelse unreachable; 1993 const user = (try activeUser(moment, arena, user_id)) orelse return null; 1994 return .{ .role = role, .email = user.event.email }; 1995 } 1996 }; 1997 1998 // a repo a page shows, and what its viewer may do there 1999 pub const RepoHandle = struct { 2000 location: RoutablePage.RepoLocation, 2001 viewer: ?Viewer = null, 2002 2003 pub fn dupe(self: RepoHandle, allocator: std.mem.Allocator) !RepoHandle { 2004 var copy = self; 2005 copy.location = try self.location.dupe(allocator); 2006 return copy; 2007 } 2008 2009 // pushing, and seeing the events and undo tabs. local mode is always owner. 2010 pub fn canWrite(self: RepoHandle) bool { 2011 const viewer = self.viewer orelse return false; 2012 return viewer.role.atLeast(.write); 2013 } 2014 2015 pub fn canUndo(self: RepoHandle) bool { 2016 const viewer = self.viewer orelse return false; 2017 return viewer.role == .owner; 2018 } 2019 }; 2020 2021 // where a repo page reads its on-disk repo from 2022 pub const RepoSource = struct { 2023 path: []const u8, 2024 repo_kind: rp.RepoKind, 2025 // the user's global git config, so local mode picks up their identity and 2026 // their signing and ssh settings. null on the server paths, which must not 2027 // read whoever runs the server. 2028 global_config_path: ?[]const u8 = null, 2029 2030 pub fn localInitOpts(self: RepoSource) rp.InitOpts { 2031 return .{ .path = self.path, .global_config_path = self.global_config_path }; 2032 } 2033 2034 pub fn hasBranch(self: RepoSource, io: std.Io, allocator: std.mem.Allocator, branch: []const u8) !bool { 2035 if (!xit.ref.validateName(branch)) return false; 2036 return switch (self.repo_kind) { 2037 inline else => |repo_kind| blk: { 2038 var any_repo = try rp.AnyRepo(repo_kind, .{}).open(io, allocator, self.localInitOpts()); 2039 defer any_repo.deinit(io, allocator); 2040 break :blk switch (any_repo) { 2041 inline else => |*repo| (try repo.readRef(io, .{ .kind = .head, .name = branch })) != null, 2042 }; 2043 }, 2044 }; 2045 } 2046 2047 // whether the actor may change the event `id` names 2048 pub fn canModify( 2049 self: RepoSource, 2050 io: std.Io, 2051 allocator: std.mem.Allocator, 2052 actor: Actor, 2053 kind: evt.EventKind, 2054 id: *const [evt.event_id_size]u8, 2055 ) !bool { 2056 // a role that may change an event with no author needs no read 2057 if (actor.role.canModify(actor.author.email, null)) return true; 2058 2059 var arena = std.heap.ArenaAllocator.init(allocator); 2060 defer arena.deinit(); 2061 return switch (self.repo_kind) { 2062 inline else => |repo_kind| blk: { 2063 var any_repo = try rp.AnyRepo(repo_kind, .{}).open(io, allocator, self.localInitOpts()); 2064 defer any_repo.deinit(io, allocator); 2065 break :blk switch (any_repo) { 2066 inline else => |*repo| actor.role.canModify(actor.author.email, try evt.readAuthorEmail(repo_kind, repo.self_repo_opts, io, allocator, &arena, repo, kind, id)), 2067 }; 2068 }, 2069 }; 2070 } 2071 }; 2072 2073 // who a write acts as and the role they hold in its repo 2074 pub const Actor = struct { 2075 author: evt.CommitAuthor, 2076 // local mode has no accounts, so it has no user id 2077 user_id: ?[evt.event_id_size]u8 = null, 2078 role: evt.Repo.Role, 2079 // the repo owner's id, which local mode lacks 2080 repo_user_id: ?[evt.event_id_size]u8 = null, 2081 }; 2082 2083 pub const Authorization = union(enum) { 2084 actor: Actor, 2085 login_required, 2086 repo_not_found, 2087 forbidden, 2088 }; 2089 2090 // the account `user_id` names, or null once it has been removed. a user id is 2091 // checked here wherever one enters, so the role lookups can trust theirs. 2092 pub fn activeUser( 2093 moment: evt.AdminDB.HashMap(.read_only), 2094 arena: *std.heap.ArenaAllocator, 2095 user_id: [evt.event_id_size]u8, 2096 ) !?evt.User.Record { 2097 const user = (try evt.User.readById(evt.AdminDB, evt.admin_repo_opts.hash, moment, arena, &user_id)) orelse return null; 2098 return if (user.removed) null else user; 2099 } 2100 2101 // what the typed assignee resolves to 2102 pub const AssigneeLookup = union(enum) { 2103 email: []const u8, 2104 failure: Session.FormFeedback.AssignmentFailure, 2105 }; 2106 2107 // the email `text` assigns: itself when it holds an @, else the email of the 2108 // user it names. a null moment is local mode, which has no users to look up. 2109 pub fn assigneeEmail(moment_maybe: ?evt.AdminDB.HashMap(.read_only), arena: *std.heap.ArenaAllocator, text: []const u8) !AssigneeLookup { 2110 const trimmed = std.mem.trim(u8, text, " \t\r\n"); 2111 if (std.mem.indexOfScalar(u8, trimmed, '@') != null) return .{ .email = trimmed }; 2112 const moment = moment_maybe orelse return .{ .failure = .not_an_email }; 2113 const user_id = (try evt.User.readIdByName(evt.AdminDB, evt.admin_repo_opts.hash, moment, trimmed)) orelse return .{ .failure = .not_found }; 2114 const user = (try activeUser(moment, arena, user_id)) orelse return .{ .failure = .not_found }; 2115 return .{ .email = user.event.email }; 2116 } 2117 2118 // whether the user may write to the repo `identity` names with at least 2119 // `min_role`, and to the `thread_kind` tab when there is one 2120 pub fn authorizeUser( 2121 io: std.Io, 2122 moment: evt.AdminDB.HashMap(.read_only), 2123 arena: *std.heap.ArenaAllocator, 2124 users_dir: []const u8, 2125 user_id: [evt.event_id_size]u8, 2126 identity: []const u8, 2127 min_role: evt.Repo.Role, 2128 thread_kind: ?evt.EventKind, 2129 ) !Authorization { 2130 const user = (try activeUser(moment, arena, user_id)) orelse return .login_required; 2131 2132 const owner_repo = evt.parseOwnerRepoPath(identity) orelse return .repo_not_found; 2133 const repo = (try evt.readRepoByOwnerAndName(io, arena.child_allocator, arena, moment, users_dir, owner_repo.owner, owner_repo.name, user_id)) orelse return .repo_not_found; 2134 // a repo the user can't read doesn't exist to them 2135 const role = repo.role orelse return .repo_not_found; 2136 if (!role.atLeast(min_role)) return .forbidden; 2137 if (thread_kind) |kind| { 2138 // a tab that is off doesn't exist 2139 const tab_role = repo.repo.event.threadRole(kind) orelse return .repo_not_found; 2140 if (!role.atLeast(tab_role)) return .forbidden; 2141 } 2142 return .{ .actor = .{ 2143 .author = .{ .name = user.event.name, .email = user.event.email }, 2144 .user_id = user_id, 2145 .role = role, 2146 .repo_user_id = repo.repo.event.user_id[0..evt.event_id_size].*, 2147 } }; 2148 } 2149 2150 // events created in local mode have no account behind them, so the commit 2151 // author comes from the repo's config, which the global config feeds into. 2152 pub const local_author_fallback = evt.CommitAuthor{ .name = "haxy", .email = "user@haxy" }; 2153 2154 pub fn localAuthor( 2155 src: RepoSource, 2156 io: std.Io, 2157 allocator: std.mem.Allocator, 2158 arena: *std.heap.ArenaAllocator, 2159 ) !evt.CommitAuthor { 2160 switch (src.repo_kind) { 2161 inline else => |repo_kind| { 2162 var any_repo = rp.AnyRepo(repo_kind, .{}).open(io, allocator, src.localInitOpts()) catch return local_author_fallback; 2163 defer any_repo.deinit(io, allocator); 2164 2165 switch (any_repo) { 2166 inline else => |*repo| { 2167 var config = try repo.listConfig(io, allocator); 2168 defer config.deinit(); 2169 2170 const user = config.sections.get("user") orelse return local_author_fallback; 2171 const name = user.get("name") orelse return local_author_fallback; 2172 const email = user.get("email") orelse return local_author_fallback; 2173 return .{ 2174 .name = try arena.allocator().dupe(u8, name), 2175 .email = try arena.allocator().dupe(u8, email), 2176 }; 2177 }, 2178 } 2179 }, 2180 } 2181 } 2182 2183 // per-connection mutable state. each SSH session / web session / local TUI 2184 // run gets its own. 2185 pub const Session = struct { 2186 data: Data = .{}, 2187 // session-lifetime allocations: login/user_id, persisted prefs, queued 2188 // actions. lives as long as the connection. 2189 arena: *std.heap.ArenaAllocator, 2190 // current page's allocations: page data and the page-scoped strings widgets 2191 // build (form actions, links). owned by Nav, swapped on each navigation, so 2192 // it doesn't accumulate over a long-lived session. on the web/wasm paths, 2193 // where a render is one-shot, this points at the same arena as `arena`. 2194 page_arena: *std.heap.ArenaAllocator, 2195 haxy_moment: ?evt.AdminDB.HashMap(.read_only) = null, // db cursor (null on the wasm side) 2196 // filesystem io and the path to <server>/repos, for opening on-disk repos 2197 // during page construction. both null on wasm, which has no filesystem and 2198 // rebuilds pages from the serialized snapshot rather than from disk. 2199 io: ?std.Io = null, 2200 admin_repo: ?*rp.Repo(.xit, evt.admin_repo_opts) = null, 2201 users_dir: ?[]const u8 = null, 2202 // the single on-disk repo this session views, when running in local mode 2203 // (haxy invoked with no arguments inside a repo). null on the server paths, 2204 // which resolve repos from the admin db instead. 2205 local: ?RepoSource = null, 2206 // focus id -> the live TextInput, refreshed each frame by the views that own 2207 // inputs. web/wasm form handling looks widgets up here by focus id. 2208 text_inputs: std.AutoHashMapUnmanaged(usize, *wgt.TextInput) = .empty, 2209 back: enum { unavailable, available, requested } = .unavailable, 2210 refresh_requested: bool = false, // set by input (ctrl+r) 2211 // a requested forward navigation. set this (via navigate) to move to a new 2212 // page; Nav.sync builds it and then copies it into current_page, clearing 2213 // this back to null. setting current_page directly only updates the url and 2214 // does not navigate. 2215 next_page: ?RoutablePage = null, 2216 is_terminal: bool = false, // true on remote SSH and local TUI 2217 color: bool = true, // false when NO_COLOR is set, which also hides the art 2218 // the terminal's reported default background, which the art blends toward 2219 terminal_background: ?Grid.Color.Rgb = null, 2220 // port the web UI is served on, for the TUI/SSH footer's "http://localhost:<port>..." 2221 // url. null on the web itself (no footer there). 2222 web_port: ?u16 = null, 2223 // a host operation requested by a widget 2224 host_request: ?HostRequest = null, 2225 quit_requested: bool = false, 2226 2227 pub const HostRequest = union(enum) { 2228 show_copyable_text: []const u8, 2229 sync_events, 2230 undo: RoutablePage.RepoUndoRoute, 2231 }; 2232 2233 pub const FormFeedback = union(enum) { 2234 pub const LoginFailure = enum { unknown_user, wrong_password }; 2235 pub const ThreadFailure = enum { required_title }; 2236 pub const PatchFailure = enum { 2237 required_title, 2238 invalid_target_branch, 2239 invalid_source_branch, 2240 same_branch, 2241 unrelated_branches, 2242 2243 pub fn fromError(err: anyerror) ?PatchFailure { 2244 return switch (err) { 2245 error.InvalidTargetBranch => .invalid_target_branch, 2246 error.InvalidSourceBranch => .invalid_source_branch, 2247 error.SameBranch => .same_branch, 2248 error.UnrelatedBranches => .unrelated_branches, 2249 else => null, 2250 }; 2251 } 2252 }; 2253 2254 pub const RepoFailure = enum { 2255 required_name, 2256 invalid_name, 2257 name_taken, 2258 2259 pub fn fromError(err: anyerror) ?RepoFailure { 2260 return switch (err) { 2261 error.NameEmpty => .required_name, 2262 error.NameTooLong, error.InvalidName => .invalid_name, 2263 error.NameTaken => .name_taken, 2264 else => null, 2265 }; 2266 } 2267 }; 2268 2269 pub const RolesFailure = enum { not_found, already_added }; 2270 2271 pub const AssignmentFailure = enum { not_found, not_an_email, already_assigned }; 2272 2273 pub const UserFailure = enum { 2274 required_name, 2275 invalid_name, 2276 name_taken, 2277 required_email, 2278 email_taken, 2279 required_password, 2280 password_mismatch, 2281 wrong_password, 2282 2283 pub fn fromError(err: anyerror) ?UserFailure { 2284 return switch (err) { 2285 error.NameEmpty => .required_name, 2286 error.NameTooShort, error.NameTooLong, error.InvalidName => .invalid_name, 2287 error.NameTaken => .name_taken, 2288 error.EmailEmpty => .required_email, 2289 error.EmailTaken => .email_taken, 2290 error.PasswordEmpty => .required_password, 2291 error.PasswordMismatch => .password_mismatch, 2292 error.WrongPassword => .wrong_password, 2293 else => null, 2294 }; 2295 } 2296 }; 2297 2298 login: struct { 2299 failure: LoginFailure, 2300 username: []const u8, 2301 }, 2302 user: struct { 2303 failure: UserFailure, 2304 // passwords are never retained 2305 fields: struct { 2306 name: []const u8, 2307 email: []const u8, 2308 }, 2309 }, 2310 user_settings: struct { 2311 failure: UserFailure, 2312 // passwords are never retained 2313 fields: struct { email: []const u8 }, 2314 }, 2315 repo: struct { 2316 failure: RepoFailure, 2317 fields: struct { 2318 name: []const u8, 2319 description: []const u8, 2320 hash: hash.HashKind, 2321 access: evt.Repo.Access, 2322 }, 2323 }, 2324 repo_settings: struct { 2325 failure: RepoFailure, 2326 fields: struct { 2327 name: []const u8, 2328 description: []const u8, 2329 access: evt.Repo.Access, 2330 discuss_role: ?evt.Repo.Role, 2331 issue_role: ?evt.Repo.Role, 2332 patch_role: ?evt.Repo.Role, 2333 }, 2334 }, 2335 repo_roles: struct { 2336 failure: RolesFailure, 2337 name: []const u8, 2338 }, 2339 assignment: struct { 2340 failure: AssignmentFailure, 2341 text: []const u8, 2342 }, 2343 issue: struct { 2344 failure: ThreadFailure, 2345 fields: ?struct { 2346 title: []const u8, 2347 labels: []const u8, 2348 description: []const u8, 2349 } = null, 2350 }, 2351 patch: struct { 2352 failure: PatchFailure, 2353 fields: ?struct { 2354 title: []const u8, 2355 labels: []const u8, 2356 description: []const u8, 2357 target_branch: []const u8, 2358 source_branch: []const u8 = "", 2359 source_kind: Repo.Patches.Source.Kind = .fork, 2360 } = null, 2361 }, 2362 discussion: struct { 2363 failure: ThreadFailure, 2364 fields: ?struct { 2365 title: []const u8, 2366 labels: []const u8, 2367 description: []const u8, 2368 } = null, 2369 }, 2370 }; 2371 2372 const Self = @This(); 2373 2374 // serializable data sent down to web client 2375 pub const Data = struct { 2376 user_id: ?[]const u8 = null, 2377 // the logged-in user's name and email, for the views that show them 2378 user_name: ?[]const u8 = null, 2379 user_email: ?[]const u8 = null, 2380 // a failed form retained long enough to render it for correction 2381 form_feedback: ?FormFeedback = null, 2382 // a transient local event-sync error 2383 sync_failure: ?[]const u8 = null, 2384 // a failed terminal undo retained on the current tab 2385 undo_failure: ?[]const u8 = null, 2386 current_page: RoutablePage = .default, 2387 // the selected ANSI art. the server serializes one image for WASM so 2388 // the browser does not need the whole build-generated collection. 2389 ansi_art: []const u8 = "", 2390 // the bound git-service ports. absent in local mode, where remote urls 2391 // are not shown. 2392 git_http_port: ?u16 = null, 2393 git_ssh_port: ?u16 = null, 2394 git_ssh_prefix: []const u8 = "", 2395 // whether this session views a local repo or the server. unlike `local` 2396 // (the host-side filesystem source) this travels in the snapshot, so 2397 // the wasm side also parses elided link urls and hides the multi-user 2398 // chrome. 2399 host_kind: evt.HostKind = .server, 2400 }; 2401 2402 pub fn init( 2403 arena: *std.heap.ArenaAllocator, 2404 repo: *rp.Repo(.xit, evt.admin_repo_opts), 2405 data: Data, 2406 ) !Self { 2407 var session = Self{ 2408 .data = data, 2409 .arena = arena, 2410 // until a host swaps in a page-scoped arena (Nav does this), page 2411 // allocations land in the session arena. on the web path that's the 2412 // intended behavior, since the whole arena is per-request. 2413 .page_arena = arena, 2414 .admin_repo = repo, 2415 .haxy_moment = try evt.currentMoment(evt.admin_repo_opts, repo), 2416 }; 2417 try session.loadUser(); 2418 return session; 2419 } 2420 2421 // load the logged-in user's name and persisted preferences from the db 2422 pub fn loadUser(self: *Self) !void { 2423 const user_id = self.userId() orelse return; 2424 const moment = self.haxy_moment orelse return; 2425 const user = (try activeUser(moment, self.arena, user_id)) orelse return self.logOut(); 2426 self.data.user_name = user.event.name; 2427 self.data.user_email = user.event.email; 2428 } 2429 2430 // forget the logged-in user, on a logout or once their account is removed 2431 pub fn logOut(self: *Self) void { 2432 self.data.user_id = null; 2433 self.data.user_name = null; 2434 self.data.user_email = null; 2435 } 2436 2437 pub fn userId(self: *const Self) ?[evt.event_id_size]u8 { 2438 const bytes = self.data.user_id orelse return null; 2439 if (bytes.len != evt.event_id_size) return null; 2440 var id: [evt.event_id_size]u8 = undefined; 2441 @memcpy(&id, bytes); 2442 return id; 2443 } 2444 2445 pub fn formFeedback(self: *const Self, comptime tag: std.meta.Tag(FormFeedback)) ?@FieldType(FormFeedback, @tagName(tag)) { 2446 const feedback = self.data.form_feedback orelse return null; 2447 if (std.meta.activeTag(feedback) != tag) return null; 2448 return @field(feedback, @tagName(tag)); 2449 } 2450 2451 pub fn clearFormFeedback(self: *Self) void { 2452 self.data.form_feedback = null; 2453 } 2454 2455 // the actor for a write to the repo `identity` names, or null when the 2456 // session may not write there with at least `min_role` or in the 2457 // `thread_kind` tab. local mode always writes. 2458 pub fn authorize(self: *Self, identity: []const u8, min_role: evt.Repo.Role, thread_kind: ?evt.EventKind) !?Actor { 2459 if (self.data.host_kind == .local) { 2460 const author = blk: { 2461 const src = self.local orelse break :blk local_author_fallback; 2462 const io = self.io orelse break :blk local_author_fallback; 2463 break :blk try localAuthor(src, io, self.page_arena.child_allocator, self.page_arena); 2464 }; 2465 return .{ .author = author, .role = .owner }; 2466 } 2467 const user_id = self.userId() orelse return null; 2468 // the session's moment predates this input, so read the roles afresh 2469 const admin_repo = self.admin_repo orelse return null; 2470 const io = self.io orelse return null; 2471 const users_dir = self.users_dir orelse return null; 2472 const moment = try evt.currentMoment(evt.admin_repo_opts, admin_repo); 2473 return switch (try authorizeUser(io, moment, self.page_arena, users_dir, user_id, identity, min_role, thread_kind)) { 2474 .actor => |actor| actor, 2475 .login_required, .repo_not_found, .forbidden => null, 2476 }; 2477 } 2478 2479 // where this session's event writes go. a server session always has a users dir 2480 pub fn eventHost(self: *const Self) evt.Host { 2481 return switch (self.data.host_kind) { 2482 .local => .local, 2483 .server => .{ .server = .{ .users_dir = self.users_dir orelse unreachable } }, 2484 }; 2485 } 2486 2487 // reload the moment from the admin repo and log out a removed user 2488 pub fn reloadMoment(self: *Self, allocator: std.mem.Allocator, repo: *rp.Repo(.xit, evt.admin_repo_opts)) !void { 2489 const moment = try evt.currentMoment(evt.admin_repo_opts, repo); 2490 self.haxy_moment = moment; 2491 2492 const user_id = self.userId() orelse return; 2493 var arena = std.heap.ArenaAllocator.init(allocator); 2494 defer arena.deinit(); 2495 if (try activeUser(moment, &arena, user_id) == null) self.logOut(); 2496 } 2497 2498 // request a forward navigation to `route`; the host consumes next_page 2499 // (Nav.sync on the terminal, the wasm tick on the web). 2500 pub fn navigate(self: *Session, route: RoutablePage) !void { 2501 self.clearFormFeedback(); 2502 self.next_page = route; 2503 } 2504 }; 2505 2506 pub fn run(io: std.Io, allocator: std.mem.Allocator, session: *Session, repo_maybe: ?*rp.Repo(.xit, evt.admin_repo_opts)) !void { 2507 var nav = try Nav.init(allocator, session); 2508 defer nav.deinit(allocator); 2509 2510 var terminal = try term.Terminal.init(io, allocator); 2511 terminal.render_state.no_color = !session.color; 2512 var terminal_live = true; 2513 defer if (terminal_live) terminal.deinit(io); 2514 2515 // set term as active so it will be properly cooked 2516 // when a panic/segfault happens 2517 term.setActive(&terminal); 2518 defer term.setActive(null); 2519 2520 try terminal.queryBackground(); 2521 2522 while (!terminal.shouldQuit()) { 2523 const grid_changed = try terminal.render(&nav.root); 2524 2525 // process any inputs. 2526 // 2527 // if the grid didn't change, then first do a blocking 2528 // read, so the thread will sleep until further input. 2529 // after that, all remaining reads are non-blocking so 2530 // we can process the rest of the queued inputs. 2531 // 2532 // if the grid *did* change, then only do non-blocking 2533 // reads. we do not want to sleep the thread because 2534 // there may be an animation that requires more looping. 2535 var blocking = !grid_changed; 2536 while (try terminal.readKey(io, blocking)) |key| { 2537 blocking = false; 2538 try inputKey(allocator, &nav.root, key, session); 2539 } 2540 2541 if (session.host_request) |request| { 2542 session.host_request = null; 2543 switch (request) { 2544 .show_copyable_text => |copyable_text| { 2545 term.setActive(null); 2546 terminal.deinit(io); 2547 terminal_live = false; 2548 showCopyableText(io, copyable_text) catch |show_err| { 2549 terminal = try term.Terminal.init(io, allocator); 2550 terminal_live = true; 2551 term.setActive(&terminal); 2552 return show_err; 2553 }; 2554 terminal = try term.Terminal.init(io, allocator); 2555 terminal.render_state.no_color = !session.color; 2556 terminal_live = true; 2557 term.setActive(&terminal); 2558 }, 2559 .undo => |target| Repo.Undo.handleRequest(allocator, session, target), 2560 .sync_events => { 2561 try nav.root.build(allocator, .{ 2562 .min_size = .{ .width = null, .height = null }, 2563 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 2564 }, nav.root.getFocus()); 2565 _ = try terminal.render(&nav.root); 2566 try Repo.Events.performSync(allocator, session); 2567 }, 2568 } 2569 } 2570 2571 // reload so the next navigation builds its page from the current moment 2572 if (repo_maybe) |repo| try session.reloadMoment(allocator, repo); 2573 2574 // reconcile navigation: forward to a new page, or back on escape. 2575 // the terminal background can change at any time, so recheck it on each page 2576 if (try nav.sync(allocator, session)) try terminal.queryBackground(); 2577 2578 // the quit button (on the quit tab) asks the host to tear down. 2579 if (session.quit_requested) terminal.requestQuit(); 2580 2581 try nav.root.build(allocator, .{ 2582 .min_size = .{ .width = null, .height = null }, 2583 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 2584 }, nav.root.getFocus()); 2585 } 2586 } 2587 2588 fn showCopyableText(io: std.Io, copyable_text: []const u8) !void { 2589 const tty: ?std.Io.File = if (builtin.target.os.tag == .windows) 2590 null 2591 else 2592 try std.Io.Dir.cwd().openFile(io, "/dev/tty", .{ .mode = .read_write }); 2593 defer if (tty) |file| file.close(io); 2594 2595 const input = if (tty) |file| file else std.Io.File.stdin(); 2596 const output = if (tty) |file| file else std.Io.File.stdout(); 2597 2598 var write_buf: [1024]u8 = undefined; 2599 var writer = output.writer(io, &write_buf); 2600 try writer.interface.print("\x1b[2J\x1b[Hcopy the following text and then press enter to go back:\r\n\r\n{s}\r\n", .{copyable_text}); 2601 try writer.interface.flush(); 2602 2603 var read_buf: [1]u8 = undefined; 2604 var reader = input.reader(io, &read_buf); 2605 while (true) { 2606 const byte = try reader.interface.takeByte(); 2607 if (byte == '\r' or byte == '\n') return; 2608 } 2609 } 2610 2611 pub fn inputKey(allocator: std.mem.Allocator, root: *Widget, key: Key, session: *Session) !void { 2612 const root_focus = root.getFocus(); 2613 const focused_before = root_focus.grandchild_id; 2614 var activate_in_page_link = false; 2615 switch (key) { 2616 // request a navigation pop; the host's Nav.sync goes back a page, or 2617 // quits when there's no history left. 2618 .escape => { 2619 session.back = .requested; 2620 return; 2621 }, 2622 .ctrl => |letter| switch (letter) { 2623 'r' => { 2624 session.refresh_requested = true; 2625 return; 2626 }, 2627 else => try root.input(allocator, key, root_focus), 2628 }, 2629 .enter => { 2630 if (root_focus.grandchild_id) |gid| { 2631 // follow a cross-page link 2632 if (crossPageLink(root_focus, gid, session.data)) |route| { 2633 return session.navigate(route); 2634 } 2635 if (rawLink(root_focus, gid)) |url| return requestRawLink(session, url); 2636 } 2637 activate_in_page_link = true; 2638 try root.input(allocator, key, root_focus); 2639 }, 2640 .mouse => |mouse| { 2641 if (mouse.action == .press and mouse.action.press == .left) { 2642 if (cellPageLink(root, mouse.x, mouse.y, session.data)) |route| return session.navigate(route); 2643 if (root_focus.hitTest(mouse.x, mouse.y)) |hit| { 2644 const focus_id = hit.id; 2645 if (hit.kind == .background) { 2646 root_focus.setFocus(focus_id); 2647 return; 2648 } 2649 if (widget.isBackButton((root_focus.children.get(focus_id) orelse return).focus)) { 2650 if (session.back == .available) session.back = .requested; 2651 return; 2652 } 2653 // follow a cross-page link 2654 if (crossPageLink(root_focus, focus_id, session.data)) |route| { 2655 return session.navigate(route); 2656 } 2657 if (currentPageLink(root_focus, focus_id, session.data)) return; 2658 if (rawLink(root_focus, focus_id)) |url| { 2659 if (!mouse.ctrl) try requestRawLink(session, url); 2660 return; 2661 } 2662 root_focus.setFocus(focus_id); 2663 activate_in_page_link = true; 2664 } 2665 // forward the press into the widget tree so buttons (and any 2666 // future click-aware widgets) can react. widgets that don't 2667 // care about presses ignore it. 2668 try root.input(allocator, key, root_focus); 2669 } else { 2670 try root.input(allocator, key, root_focus); 2671 } 2672 }, 2673 .event => |event| switch (event) { 2674 .background => |rgb| session.terminal_background = rgb, 2675 .resize => try root.input(allocator, key, root_focus), 2676 }, 2677 else => try root.input(allocator, key, root_focus), 2678 } 2679 2680 const focused_after = root_focus.grandchild_id; 2681 if (!activate_in_page_link and focused_before == focused_after) return; 2682 const focus_id = focused_after orelse return; 2683 if (inPageLink(root_focus, focus_id, session.data)) |route| session.data.current_page = route; 2684 } 2685 2686 // a link to bytes the server serves directly rather than to a page route, so 2687 // it never resolves to a RoutablePage 2688 pub const raw_link_prefix = "ax:"; 2689 2690 // a route already loaded into the current page; focusing it changes the url 2691 // without rebuilding the page 2692 pub const in_page_link_prefix = "ai:"; 2693 2694 // an in-page tab's base route, or the exact current route when it is selected 2695 pub fn inPageTabLink(session: *Session, route: RoutablePage, selected: bool) ![]const u8 { 2696 const target = if (selected) session.data.current_page else route; 2697 return session.page_arena.allocator().print("{s}{s}", .{ in_page_link_prefix, try target.toUrl(session.page_arena) }); 2698 } 2699 2700 // a button the web renderer covers with a file picker that posts the chosen 2701 // file to the url after the prefix 2702 pub const file_input_prefix = "file:"; 2703 2704 // a submit button that overrides its enclosing form's action 2705 pub const submit_action_prefix = "submit:"; 2706 2707 // one option of a radio field, as `radio:<name>=<value>` 2708 pub const radio_prefix = "radio:"; 2709 2710 // the url an `ax:` link points at, or null for anything else. a host that 2711 // suppresses the anchor's own navigation needs this to follow the link. 2712 pub fn rawLink(root_focus: *Focus, focus_id: usize) ?[]const u8 { 2713 const child = root_focus.children.get(focus_id) orelse return null; 2714 const custom = switch (child.focus.kind) { 2715 .custom => |c| c, 2716 else => return null, 2717 }; 2718 if (!std.mem.startsWith(u8, custom, raw_link_prefix)) return null; 2719 return custom[raw_link_prefix.len..]; 2720 } 2721 2722 fn requestRawLink(session: *Session, url: []const u8) !void { 2723 session.host_request = .{ .show_copyable_text = try terminalWebUrl(session.page_arena.allocator(), session, url) }; 2724 } 2725 2726 pub fn terminalWebUrl(allocator: std.mem.Allocator, session: *const Session, path: []const u8) ![]const u8 { 2727 // an absolute url is already complete 2728 if (!std.mem.startsWith(u8, path, "/")) return path; 2729 return if (session.web_port) |port| 2730 try allocator.print("http://localhost:{d}{s}", .{ port, path }) 2731 else 2732 path; 2733 } 2734 2735 // if the focus target at focus_id is an `a:` link that should navigate (a 2736 // different parent page, or a different files directory within the repo page), 2737 // return its route; otherwise null. lets a host turn a click / enter on such a 2738 // link into a navigation rather than a focus change. 2739 pub fn crossPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 2740 const current = data.current_page; 2741 const route = pageLink(root_focus, focus_id, data, "a:") orelse return null; 2742 // a link to a different parent page always navigates; within a page, a 2743 // files-directory / commits-page / list-window change navigates while tab 2744 // links stay in-page. 2745 if (route.parent() != current.parent() or RoutablePage.repoPageChanged(route, current) or RoutablePage.forkPageChanged(route, current) or RoutablePage.homePageChanged(route, current) or RoutablePage.userPageChanged(route, current)) return route; 2746 return null; 2747 } 2748 2749 // the page the clicked cell links to, from a link inside a text box's content 2750 fn cellPageLink(root: *Widget, x: usize, y: usize, data: Session.Data) ?RoutablePage { 2751 const grid = root.getGrid() orelse return null; 2752 const cell = grid.cell(x, y) catch return null; 2753 const link = cell.link orelse return null; 2754 if (link.len == 0 or link[0] != '/') return null; 2755 return if (data.host_kind == .local) RoutablePage.fromUrlLocal(link) else RoutablePage.fromUrl(link); 2756 } 2757 2758 // whether the `a:` focus target links to the page already shown, which a click 2759 // leaves alone rather than focusing 2760 pub fn currentPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) bool { 2761 const route = pageLink(root_focus, focus_id, data, "a:") orelse return false; 2762 return route.eql(data.current_page); 2763 } 2764 2765 // the route carried by an `ai:` focus target, or null for any other target 2766 pub fn inPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 2767 return pageLink(root_focus, focus_id, data, in_page_link_prefix); 2768 } 2769 2770 fn pageLink(root_focus: *Focus, focus_id: usize, data: Session.Data, prefix: []const u8) ?RoutablePage { 2771 const child = root_focus.children.get(focus_id) orelse return null; 2772 const custom = switch (child.focus.kind) { 2773 .custom => |c| c, 2774 else => return null, 2775 }; 2776 if (!std.mem.startsWith(u8, custom, prefix)) return null; 2777 const path = custom[prefix.len..]; 2778 // local sessions build (and parse) links with the repo identity elided 2779 return if (data.host_kind == .local) RoutablePage.fromUrlLocal(path) else RoutablePage.fromUrl(path); 2780 } 2781 2782 // a display author, resolved against the admin db at read time 2783 pub const Author = union(enum) { 2784 unknown, 2785 email: []const u8, // an email no user matches 2786 user_name: []const u8, 2787 2788 // the commit author line's email, resolved like initFromEmail 2789 pub fn init( 2790 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 2791 arena: *std.heap.ArenaAllocator, 2792 author_line: []const u8, 2793 ) !Author { 2794 return initFromEmail(haxy_moment, arena, evt.authorEmail(author_line)); 2795 } 2796 2797 // from a record's stored author email: it resolves to the user currently 2798 // holding it, else stays the email. the result is allocated in `arena`, 2799 // so the email may borrow transient memory. 2800 pub fn initFromEmail( 2801 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 2802 arena: *std.heap.ArenaAllocator, 2803 author_email: ?[]const u8, 2804 ) !Author { 2805 const email = author_email orelse return .unknown; 2806 if (haxy_moment) |moment| { 2807 if (try evt.User.readByEmail(evt.AdminDB, evt.admin_repo_opts.hash, moment, arena, email)) |user| { 2808 return .{ .user_name = user.name }; 2809 } 2810 } 2811 return .{ .email = try arena.allocator().dupe(u8, email) }; 2812 } 2813 }; 2814 2815 // the "a:" link to user `name`'s page. 2816 pub fn userLink(page_arena: *std.heap.ArenaAllocator, name: []const u8) ![]const u8 { 2817 const parsed = RoutablePage.Array(evt.User.name_max_len).from(name) orelse return error.RouteTooLong; 2818 const url = try (RoutablePage{ .user_repos = .{ .name = parsed } }).toUrl(page_arena); 2819 return page_arena.allocator().print("a:{s}", .{url}); 2820 } 2821 2822 // a focusable " author " box showing `author`, linking to their user page 2823 // when it is a known user 2824 pub fn authorBox(allocator: std.mem.Allocator, page_arena: *std.heap.ArenaAllocator, author: Author) !wgt.TextBox { 2825 const text = switch (author) { 2826 .unknown => "", 2827 .email, .user_name => |t| t, 2828 }; 2829 var tb = try wgt.TextBox.init(allocator, text, .{ .border = .single, .round_corners = true, .wrap_kind = .none, .top_label = .{ .text = " author " } }); 2830 errdefer tb.deinit(allocator); 2831 tb.getFocus().mode = .all; 2832 switch (author) { 2833 .user_name => |name| tb.getFocus().kind = .{ .custom = try userLink(page_arena, name) }, 2834 else => {}, 2835 } 2836 return tb; 2837 } 2838 2839 // native-TUI navigation 2840 pub const Nav = struct { 2841 root: Widget, 2842 // backs the current page (its Page data and the page-scoped strings its 2843 // widgets build). owned here, swapped on each navigation. session.page_arena 2844 // tracks whichever of these is current so widgets allocate into it. 2845 arena: *std.heap.ArenaAllocator, 2846 // the login the current root was built for 2847 user_id: ?[evt.event_id_size]u8, 2848 history: std.ArrayList(Entry), 2849 2850 // each retained page keeps its own arena, freed when the page leaves the 2851 // stack (popped on back, evicted at cap, or on deinit). this is what keeps a 2852 // long-lived session from accumulating every page it ever visited. 2853 const Entry = struct { root: Widget, route: RoutablePage, arena: *std.heap.ArenaAllocator, user_id: ?[evt.event_id_size]u8 }; 2854 2855 // cap on retained back-history so the chain can't grow memory without bound 2856 const max_history: usize = 16; 2857 2858 pub fn init(allocator: std.mem.Allocator, session: *Session) !Nav { 2859 session.back = .unavailable; 2860 const arena = try allocator.create(std.heap.ArenaAllocator); 2861 arena.* = std.heap.ArenaAllocator.init(allocator); 2862 errdefer { 2863 arena.deinit(); 2864 allocator.destroy(arena); 2865 } 2866 2867 return .{ 2868 .root = try initCurrentRoot(allocator, arena, session), 2869 .arena = arena, 2870 .user_id = session.userId(), 2871 .history = .empty, 2872 }; 2873 } 2874 2875 pub fn deinit(self: *Nav, allocator: std.mem.Allocator) void { 2876 self.root.deinit(allocator); 2877 freeArena(allocator, self.arena); 2878 for (self.history.items) |*entry| { 2879 entry.root.deinit(allocator); 2880 freeArena(allocator, entry.arena); 2881 } 2882 self.history.deinit(allocator); 2883 } 2884 2885 // rebuild the current page in place from a current moment 2886 fn rebuild(self: *Nav, allocator: std.mem.Allocator, session: *Session) !void { 2887 if (session.haxy_moment == null and session.local == null) return; 2888 const arena = try allocator.create(std.heap.ArenaAllocator); 2889 arena.* = std.heap.ArenaAllocator.init(allocator); 2890 errdefer freeArena(allocator, arena); 2891 2892 const new_root = try initCurrentRoot(allocator, arena, session); 2893 2894 self.root.deinit(allocator); 2895 freeArena(allocator, self.arena); 2896 self.root = new_root; 2897 self.arena = arena; 2898 self.user_id = session.userId(); 2899 } 2900 2901 // build the current page's root in `arena`, or the not-found page's when 2902 // the route names nothing 2903 fn initCurrentRoot(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator, session: *Session) !Widget { 2904 session.page_arena = arena; 2905 const page = try arena.allocator().create(Page); 2906 page.* = Page.init(arena, session, session.data.current_page) catch |err| switch (err) { 2907 error.NotFound => blk: { 2908 session.data.current_page = .not_found; 2909 break :blk .not_found; 2910 }, 2911 else => |e| return e, 2912 }; 2913 return initRoot(allocator, page, session); 2914 } 2915 2916 fn freeArena(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator) void { 2917 arena.deinit(); 2918 allocator.destroy(arena); 2919 } 2920 2921 // reconcile the displayed root with the session's navigation state. a 2922 // forward nav (current_page moved to a different parent page) pushes the 2923 // current root and builds the new page in a fresh arena; a back request 2924 // frees the current page and restores the previous one. when escape is 2925 // pressed with no history left we switch to the quit tab instead of quitting. 2926 // returns whether the root was replaced. 2927 pub fn sync(self: *Nav, allocator: std.mem.Allocator, session: *Session) !bool { 2928 // refresh: rebuild the current page in place from a current moment 2929 if (session.refresh_requested) { 2930 session.refresh_requested = false; 2931 try self.rebuild(allocator, session); 2932 return true; 2933 } 2934 2935 if (session.back == .requested) { 2936 if (self.history.pop()) |entry| { 2937 session.back = if (self.history.items.len == 0) .unavailable else .available; 2938 self.root.deinit(allocator); 2939 freeArena(allocator, self.arena); 2940 self.root = entry.root; 2941 self.arena = entry.arena; 2942 self.user_id = entry.user_id; 2943 session.page_arena = entry.arena; 2944 session.data.current_page = entry.route; 2945 // a page built under another login is rebuilt rather than restored 2946 if (!std.meta.eql(entry.user_id, session.userId())) { 2947 try self.rebuild(allocator, session); 2948 return true; 2949 } 2950 chooseAnsiArtForNavigation(session); 2951 return true; 2952 } 2953 session.back = .unavailable; 2954 // nothing to go back to; switch to the quit confirmation 2955 const root_focus = self.root.getFocus(); 2956 var iter = root_focus.children.iterator(); 2957 while (iter.next()) |entry| { 2958 switch (entry.value_ptr.focus.kind) { 2959 .custom => |custom| if (std.mem.eql(u8, custom, Quit.tab_kind)) { 2960 root_focus.setFocus(entry.key_ptr.*); 2961 // a Stack only builds its selected child, so the quit 2962 // button isn't in the focus tree until a build runs with 2963 // the quit tab selected. build once, then send a 2964 // synthetic arrow_down to drop focus from the tab onto 2965 // the button so it's ready to confirm. 2966 try self.root.build(allocator, .{ 2967 .min_size = .{ .width = null, .height = 40 }, 2968 .max_size = .{ .width = 80, .height = null }, 2969 }, root_focus); 2970 try self.root.input(allocator, .arrow_down, root_focus); 2971 break; 2972 }, 2973 else => {}, 2974 } 2975 } 2976 return false; 2977 } 2978 2979 // forward navigation: navigate() set next_page to the page to move to (a 2980 // cross-page link or tab change crossing pages) 2981 if (session.next_page) |route| { 2982 session.next_page = null; 2983 if (session.haxy_moment == null and session.local == null) return false; 2984 const previous_route = session.data.current_page; 2985 // the page we navigated to becomes the current page 2986 session.data.current_page = route; 2987 session.back = .available; 2988 2989 const arena = try allocator.create(std.heap.ArenaAllocator); 2990 arena.* = std.heap.ArenaAllocator.init(allocator); 2991 errdefer freeArena(allocator, arena); 2992 2993 const new_root = try initCurrentRoot(allocator, arena, session); 2994 2995 try self.history.append(allocator, .{ .root = self.root, .route = previous_route, .arena = self.arena, .user_id = self.user_id }); 2996 // drop the oldest entry (freeing its widget tree and arena) once over cap 2997 if (self.history.items.len > max_history) { 2998 var oldest = self.history.orderedRemove(0); 2999 oldest.root.deinit(allocator); 3000 freeArena(allocator, oldest.arena); 3001 } 3002 self.root = new_root; 3003 self.arena = arena; 3004 self.user_id = session.userId(); 3005 return true; 3006 } 3007 return false; 3008 } 3009 }; 3010 3011 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 3012 const page_widget: Widget = switch (page.*) { 3013 .home => |*p| .{ .home = try .init(allocator, p, session) }, 3014 .user => |*p| .{ .user = try .init(allocator, p, session) }, 3015 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 3016 .fork => |*p| .{ .fork = try .init(allocator, p, session) }, 3017 .not_found => .{ .not_found = try .init(allocator, session) }, 3018 }; 3019 3020 chooseAnsiArtForNavigation(session); 3021 3022 // on the TUI/SSH, the page sits above a one-row footer showing its web 3023 // url, when there's a web UI to point at 3024 var root = if (session.is_terminal) blk: { 3025 var box = try wgt.Box(Widget).init(allocator, .{ .border = null, .direction = .vert }); 3026 errdefer box.deinit(allocator); 3027 const bg_id = bg_blk: { 3028 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 3029 errdefer background.deinit(allocator); 3030 const id = background.getFocus().id; 3031 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 3032 break :bg_blk id; 3033 }; 3034 if (session.web_port != null) { 3035 var footer = try widget.Footer.init(allocator, session); 3036 errdefer footer.deinit(allocator); 3037 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 3038 } 3039 box.getFocus().child_id = bg_id; 3040 break :blk Widget{ .box = box }; 3041 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 3042 errdefer root.deinit(allocator); 3043 3044 // input-owning views build their TextInputs in init, so reset their 3045 // registrations here 3046 session.text_inputs.clearRetainingCapacity(); 3047 3048 try root.build(allocator, .{ 3049 .min_size = .{ .width = null, .height = 40 }, 3050 .max_size = .{ .width = 100, .height = null }, 3051 }, root.getFocus()); 3052 3053 return root; 3054 } 3055 3056 // native and server-side sessions choose from the embedded collection. WASM 3057 // keeps the art serialized by the server instead. 3058 fn chooseAnsiArtForNavigation(session: *Session) void { 3059 if (comptime ansi_art.art.len == 0) return; 3060 if (session.data.current_page == .not_found) { 3061 session.data.ansi_art = ansi_art.not_found; 3062 return; 3063 } 3064 const io = session.io orelse return; 3065 var random: usize = undefined; 3066 io.random(std.mem.asBytes(&random)); 3067 session.data.ansi_art = ansi_art.art[random % ansi_art.art.len]; 3068 } 3069