feat: set output HTML file mtime from "meta date" directive

Sponsored-by: author

1 files changed, 23 insertions, 0 deletions

diff --git a/riki.md b/riki.md
index 912dbac..dffd617 100644
--- a/riki.md
+++ b/riki.md
@@ -582,3 +582,26 @@ when I run riki build site output
 then file output/index.html has a very old modification time
 then file output/index.jpg has a very old modification time
 ~~~
+
+### Output files have source `meta date` modification times
+
+_Requirement: Files in the output directory have the time stamp
+specified in a `meta date` directive._
+
+Note that due to limitations in the Subplot `lib/files` library, our
+check for modification times is imprecise.
+
+~~~scenario
+given an installed riki
+given file site/index.mdwn from dated
+given file site/index.mdwn has modification time 2022-02-02 01:02:03
+when I run riki build site output
+then file output/index.html has a very old modification time
+~~~
+
+
+~~~{#dated .file .markdown}
+[[!meta date="1970-01-01 00:00:00"]]
+
+Hello.
+~~~