refactor listing (index/feed) generation

both an index and a feed are instances of what i'm calling a "listing" of
pages. this should make it easier to also write tag pages and stuff like that
later on.

1 files changed, 34 insertions, 15 deletions

@@ -109,15 +109,15 @@ main() {
         mkdir -p "$TMPD" || exit 2
         # Build pages
         alias pagep=true
-        build *."$PAGE_RAW_EXT" || exit 2
+        genpage *."$PAGE_RAW_EXT" || exit 2
         alias pagep=false
         # Build index
         alias indexp=true
-        index *."$PAGE_RAW_EXT" || exit 2
+        genlist index_item "$INDEX_TEMPLATE" *."$PAGE_RAW_EXT" >"$OUTD/index.html" || exit 2
         alias indexp=false
         # Build feed
         alias feedp=true
-        feed *."$PAGE_RAW_EXT" || exit 2
+        genlist feed_item "$FEED_TEMPLATE" *."$PAGE_RAW_EXT" >"$OUTD/feed.xml" || exit 2
         alias feedp=false
         # Copy static files
         static * || exit 2
@@ -261,12 +261,12 @@ filters() { # filters < INPUT
 
 ### Site building
 
-build() { # build PAGE...
+genpage() { # genpage PAGE...
         ## Compile PAGE(s) into $OUTD for publication.
         # Outputs a file of the format $OUTD/<PAGE>/index.html.
         test -f "$PAGE_TEMPLATE" || return 1
         for FILE; do
-                log build "$FILE"
+                log genpage "$FILE"
                 outd="$OUTD/${FILE%.$PAGE_RAW_EXT}"
                 outf="$outd/index.html"
                 tmpf="$TMPD/$FILE.tmp"
@@ -276,14 +276,40 @@ build() { # build PAGE...
         done
 }
 
+genlist() { # genlist PERITEM_FUNC TEMPLATE_FILE PAGE...
+        peritem_func="$1"
+        template_file="$2"
+        shift 2 || return 2
+        test -f "$template_file" || return 1
+        for FILE; do
+                log genlist "$peritem_func/$template_file: $FILE"
+                LINK="$DOMAIN${DOMAIN:+/}${1%.PAGE_RAW_EXT}"
+        done | expand "$template_file"
+}
+
+index_item() { # index_item PAGE
+        ## Construct a single item in an index.html.
+        echo "<li><a href=\"$LINK\">$(meta title "$1")</a></li>"
+}
+
+feed_item() { # feed_item PAGE
+        ## Construct a single item in an RSS feed.
+        date="$(pubdate "$1")"
+        echo "<item>"
+        echo "<title>$(meta title "$1")</title>"
+        echo "<link>$LINK</link>"
+        echo "<guid>$LINK</guid>"
+        test -n "$date" && echo "<pubDate>$date</pubDate>"
+        echo "</item>"
+}
+
 index() { # index PAGE...
         ## Build a site index from all PAGE(s) passed to it.
         # Wraps each PAGE in a <li><a> structure.
         test -f "$INDEX_TEMPLATE" || return 1
         for FILE; do
                 log index "$FILE"
-                link="$DOMAIN${DOMAIN:+/}${FILE%.$PAGE_RAW_EXT}"
-                echo "<li><a href=\"$link\">$(meta title "$FILE")</a></li>"
+                index_item "$FILE"
         done | expand "$INDEX_TEMPLATE" >"$OUTD/index.html"
 }
 
@@ -292,14 +318,7 @@ feed() { # feed PAGE...
         test -f "$FEED_TEMPLATE" || return 1
         for FILE; do
                 log feed "$FILE"
-                link="$DOMAIN${DOMAIN:+/}${FILE%.$PAGE_RAW_EXT}"
-                date="$(meta pubdate "$FILE")"
-                echo "<item>"
-                echo "<title>$(meta title "$FILE")</title>"
-                echo "<link>$link</link>"
-                echo "<guid>$link</guid>"
-                test -n "$date" && echo "<pubDate>$date</pubDate>"
-                echo "</item>"
+                feed_item "$FILE"
         done | expand "$FEED_TEMPLATE" >"$OUTD/feed.xml"
 }