Add capacity to get yearly grouping for microposts.

Adds a parameter called YearlyMicroposts which is used to either:
   - output the usual list of microposts if the parameter is not set or set to
     false;
   - output a list of micropost titles grouped by year (just like the posts list
     is) if the parameter is set and true.
The default behavior is not changed and the setting needs not be defined thus
not complicating the default installation.

5 files changed, 45 insertions, 28 deletions

diff --git a/layouts/_default/list.html b/layouts/_default/list.html
index 20ca950..2e128cf 100644
--- a/layouts/_default/list.html
+++ b/layouts/_default/list.html
@@ -1,9 +1,7 @@
 {{ partial "site_header.html" . }}
 {{ partial "page_header.html" . }}
 
-  <main class="content">
-    {{ partial "preview_list.html" . }}
-  </main>
+{{ partial "default_list.html" . }}
 
 {{ partial "page_footer.html" . }}
 {{ partial "site_footer.html" . }}
diff --git a/layouts/partials/default_list.html b/layouts/partials/default_list.html
new file mode 100644
index 0000000..142274c
--- /dev/null
+++ b/layouts/partials/default_list.html
@@ -0,0 +1,3 @@
+<main class="content">
+   {{ partial "preview_list.html" . }}
+</main>
diff --git a/layouts/partials/yearly_grouping.html b/layouts/partials/yearly_grouping.html
new file mode 100644
index 0000000..0cccf9e
--- /dev/null
+++ b/layouts/partials/yearly_grouping.html
@@ -0,0 +1,25 @@
+<main class="content">
+  <article class="post-groups">
+    <div class="post-group">
+    {{ range .Data.Pages.GroupByDate "2006" }}
+      <div class="post-group-item">
+        <h3>{{ .Key }}</h3>
+        <ul>
+          {{ range .Pages }}
+            <li>
+              {{ if (not (isset .Params "externalurl")) }}
+                <a rel="full-article" href="{{ .Permalink }}">{{ .Title }}</a>
+                on <time datetime="{{ .Date }}" pubdate="">{{ .Date.Format "January 2" }}</time>
+              {{ else }}
+                <a rel="remote-article" href="{{ .Params.externalurl }}">{{ .Title }} →</a>
+                on
+                <a href="{{ .Permalink }}"> <time datetime="{{ .Date }}" pubdate="">{{ .Date.Format "January 2" }}</time> </a>
+              {{ end }}
+            </li>
+          {{ end }}
+        </ul>
+      </div>
+    {{ end }}
+    </div>
+  </article>
+</main>
diff --git a/layouts/section/microposts.html b/layouts/section/microposts.html
new file mode 100644
index 0000000..c825505
--- /dev/null
+++ b/layouts/section/microposts.html
@@ -0,0 +1,15 @@
+{{ partial "site_header.html" . }}
+{{ partial "page_header.html" . }}
+
+{{ if isset .Site.Params "yearlymicroposts" | and ( .Site.Params.yearlymicroposts ) }}
+
+{{ partial "yearly_grouping.html" . }}
+
+{{ else }}
+
+{{ partial "default_list.html" . }}
+
+{{ end }}
+
+{{ partial "page_footer.html" . }}
+{{ partial "site_footer.html" . }}
\ No newline at end of file
diff --git a/layouts/section/posts.html b/layouts/section/posts.html
index aca6cfa..24510ab 100644
--- a/layouts/section/posts.html
+++ b/layouts/section/posts.html
@@ -1,31 +1,7 @@
 {{ partial "site_header.html" . }}
 {{ partial "page_header.html" . }}
 
-  <main class="content">
-    <article class="post-groups">
-      <div class="post-group">
-      {{ range .Data.Pages.GroupByDate "2006" }}
-        <div class="post-group-item">
-          <h3>{{ .Key }}</h3>
-          <ul>
-            {{ range .Pages }}
-              <li>
-                {{ if (not (isset .Params "externalurl")) }}
-                  <a rel="full-article" href="{{ .Permalink }}">{{ .Title }}</a>
-                  on <time datetime="{{ .Date }}" pubdate="">{{ .Date.Format "January 2" }}</time>
-                {{ else }}
-                  <a rel="remote-article" href="{{ .Params.externalurl }}">{{ .Title }} →</a>
-                  on
-                  <a href="{{ .Permalink }}"><time datetime="{{ .Date }}" pubdate="">{{ .Date.Format "January 2" }}</time></a>
-                {{ end }}
-              </li>
-            {{ end }}
-          </ul>
-        </div>
-      {{ end }}
-      </div>
-    </article>
-  </main>
+{{ partial "yearly_grouping.html" . }}
 
 {{ partial "page_footer.html" . }}
 {{ partial "site_footer.html" . }}