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authorVincent Ambo <mail@tazj.in>2021-04-02T13·35+0200
committertazjin <mail@tazj.in>2021-04-02T13·44+0000
commit4450003bd7385a29a28f83f3f7a3d2f57615e9ff (patch)
treeaa81e6697ab67ea610e852f98b855176fe68a180
parent817cd6f166af88b73ff7b80e7e70a0689951f731 (diff)
feat(tazjin/blog): Add distinction between published & updated times r/2402
Fixes a long-standing todo by adding an additional field for the time
at which a post was updated, and handling this in both site
generation (to note the update date after the publish date) and in
Atom feed generation (by populating both the updated and published
fields).

Change-Id: If80db43459b2a0c77eea4dde7255651b5d6cd64b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2766
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
-rw-r--r--users/tazjin/atom-feed/default.nix4
-rw-r--r--users/tazjin/blog/default.nix3
-rw-r--r--users/tazjin/blog/fragments.nix5
-rw-r--r--users/tazjin/homepage/feed.nix2
4 files changed, 13 insertions, 1 deletions
diff --git a/users/tazjin/atom-feed/default.nix b/users/tazjin/atom-feed/default.nix
index cd189b8675..fe5e4b997c 100644
--- a/users/tazjin/atom-feed/default.nix
+++ b/users/tazjin/atom-feed/default.nix
@@ -111,6 +111,10 @@ let
       ${elem "title" e.title}
       ${elem "id" e.id}
       ${elem "updated" (renderEpoch e.updated)}
+      ${if e ? published
+        then elem "published" (renderEpoch e.published)
+        else ""
+      }
       ${if e ? content
         then ''<content type="html">${escape e.content}</content>''
         else ""
diff --git a/users/tazjin/blog/default.nix b/users/tazjin/blog/default.nix
index 2232be2736..a5254b5496 100644
--- a/users/tazjin/blog/default.nix
+++ b/users/tazjin/blog/default.nix
@@ -15,6 +15,9 @@ let
     title = string;
     date = int;
 
+    # Optional time at which this post was last updated.
+    updated = option int;
+
     # Path to the Markdown file containing the post content.
     content = path;
 
diff --git a/users/tazjin/blog/fragments.nix b/users/tazjin/blog/fragments.nix
index 78a64afa39..98028fad70 100644
--- a/users/tazjin/blog/fragments.nix
+++ b/users/tazjin/blog/fragments.nix
@@ -74,6 +74,11 @@ let
     echo '<article><h2 class="inline">${escape post.title}</h2>' >> $out
     echo '<aside class="date">' >> $out
     date --date="@${toString post.date}" '+%Y-%m-%d' >> $out
+    ${
+      if post ? updated
+      then ''date --date="@${toString post.updated}" '+ (updated %Y-%m-%d)' >> $out''
+      else ""
+    }
     echo '</aside>' >> $out
 
     ${
diff --git a/users/tazjin/homepage/feed.nix b/users/tazjin/homepage/feed.nix
index 5e1fa15da6..3c0cc06f10 100644
--- a/users/tazjin/homepage/feed.nix
+++ b/users/tazjin/homepage/feed.nix
@@ -14,7 +14,7 @@ let
     title = post.title;
     content = readFile (renderMarkdown post.content);
     published = post.date;
-    updated = post.date; # TODO(tazjin): this should be distinct from published
+    updated = post.updated or post.date;
 
     links = singleton {
       rel = "alternate";