From fa17cbf6b3486c74305eec5c93f799a4263b7317 Mon Sep 17 00:00:00 2001 From: Robert Günzler Date: Fri, 3 Oct 2025 17:38:27 +0200 Subject: retain source file mtime when rendering with pandoc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Robert Günzler --- src/exe.zig | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'src/exe.zig') diff --git a/src/exe.zig b/src/exe.zig index bfe7370..2af8b66 100644 --- a/src/exe.zig +++ b/src/exe.zig @@ -24,6 +24,16 @@ pub fn run_pandoc(ctx: *Context) !void { .{page}, ); + // get mtime of the source document + const mtime = try fs.get_mtime(ctx.allocator(), source_path); + const mtime_str = try fs.format_mtime(ctx.allocator(), mtime, "%s"); + defer ctx.allocator().free(mtime_str); + + // make pandoc runs reproducable + var env_map = std.process.EnvMap.init(ctx.allocator()); + defer env_map.deinit(); + try env_map.put("SOURCE_DATE_EPOCH", mtime_str); + try capture_stdout(ctx, &.{ Context.params.PANDOC, "--from", @@ -36,13 +46,13 @@ pub fn run_pandoc(ctx: *Context) !void { "--strip-comments", "--output=-", source_path, - }, f.writer().any()); + }, &env_map, f.writer().any()); } log.info("Processed {d} markdown files.", .{ctx.markdown.items.len}); } -pub fn capture_stdout(ctx: *Context, argv: []const []const u8, buf: std.io.AnyWriter) !void { +pub fn capture_stdout(ctx: *Context, argv: []const []const u8, env_map: ?*std.process.EnvMap, buf: std.io.AnyWriter) !void { const command = try std.mem.join(ctx.allocator(), " ", argv); defer ctx.allocator().free(command); const label = try std.fmt.allocPrint(ctx.allocator(), "running {s}", .{command}); @@ -54,6 +64,7 @@ pub fn capture_stdout(ctx: *Context, argv: []const []const u8, buf: std.io.AnyWr var p = std.process.Child.init(argv, std.heap.page_allocator); p.stdout_behavior = .Pipe; p.progress_node = ctx.progress_nodes.getLast(); + p.env_map = env_map; try p.spawn(); -- cgit 1.4.1