download patch

commit 7bd7918ae997bf4e310897ec4dd401fd62898563
Author: tri <tri@thac.loan>
Date:   Tue Sep 30 17:16:14 2025 +0700

    implement getLatestCommit & accept repo arg

diff --git a/src/git.zig b/src/git.zig
index 24ecc88..e2bc7e7 100644
--- a/src/git.zig
+++ b/src/git.zig
@@ -63,6 +63,34 @@ pub fn getCommits(arena: mem.Allocator, dir: fs.Dir) ![]Commit {
     return commits.items;
 }
 
+pub fn getLatestCommit(arena: mem.Allocator, dir: fs.Dir) !?Commit {
+    const proc = try std.process.Child.run(.{
+        .allocator = arena,
+        .cwd_dir = dir,
+        .argv = &.{
+            "git",
+            "show",
+            "--summary",
+            "--pretty=format:%H\n%ai\n%s\n%ae\n%an",
+        },
+        .max_output_bytes = 4096,
+    });
+    const commit_text = proc.stdout;
+
+    if (commit_text.len == 0) {
+        return null;
+    }
+
+    var fields_iter = std.mem.splitSequence(u8, commit_text, "\n");
+    return Commit{
+        .hash = fields_iter.next().?,
+        .time = fields_iter.next().?,
+        .subject = fields_iter.next().?,
+        .author_email = fields_iter.next().?,
+        .author_name = fields_iter.next().?,
+    };
+}
+
 /// If found, return the exact readme filename.
 pub fn findReadme(arena: mem.Allocator, dir: fs.Dir) !?[]const u8 {
     var proc = try std.process.Child.run(.{
diff --git a/src/main.zig b/src/main.zig
index 969bec1..228bb7e 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -10,18 +10,31 @@ const markdown = @import("markdown.zig");
 const web_path = "_";
 const assets_path = web_path ++ "/_khoe-hang";
 
+const Mode = union(enum) {
+    all: void,
+    single_repo: []const u8,
+};
+
 pub fn main() !u8 {
-    if (std.os.argv.len != 3) {
-        println("Usage: khoe <dir> <site-url>", .{});
+    if (std.os.argv.len != 3 and std.os.argv.len != 4) {
+        println("Usage: khoe <dir> <site-url> [repo-name]", .{});
         println(
             \\For example:
             \\    khoe /srv/git/repos https://khoe.thac.loan
-            \\
+            \\    khoe /srv/git/repos https://khoe.thac.loan khoe.git
+            \\When repo-name is present, only the homepage and that repo are
+            \\regenerated.
         , .{});
         return 1;
     }
 
     const site_url = std.os.argv[2];
+    const mode: Mode =
+        if (std.os.argv.len == 3)
+            .all
+        else
+            .{ .single_repo = std.os.argv[3] };
+    _ = mode; // TODO
 
     var dba_impl: std.heap.DebugAllocator(.{}) = .init;
     defer _ = dba_impl.deinit();