4 files changed, 101 insertions, 10 deletions
diff --git a/bin/archive b/bin/archive
index 4d4c37a..d79d411 100755
--- a/bin/archive
+++ b/bin/archive
@@ -10,7 +10,9 @@ BASEDIR="$DIRNAME/.."
 #ARCHIVE="$BASEDIR/archive"
 ARCHIVE="archive"
 ASSETS="build"
-REVISION="`git describe --tags 2> /dev/null || git log -1 --format=oneline | cut -d ' ' -f 1`"
+#REVISION="`git describe --tags 2> /dev/null || git log -1 --format=oneline | cut -d ' ' -f 1`"
+METADATA=".metadata"
+LATEST="$METADATA/latest.txt"
 
 # Determine the revision file
 if [ -e "$ASSETS/revision" ]; then
@@ -39,24 +41,24 @@ if [ ! -e "$REVFILE" ]; then
   echo "# $BASENAME: skipping: revision file not found"
   exit
 else
-  OLD_REVISION="`cat $REVFILE`"
+  REVISION="`cat $REVFILE`"
 fi
 
 # Check for non-null revision
-if [ -z "$OLD_REVISION" ]; then
+if [ -z "$REVISION" ]; then
   echo "# $BASENAME: skipping: old revision is null"
   exit
 fi
 
-# Check if it's a tag
-if git tag | grep -q "^${OLD_REVISION}"; then
+# Check if the revision is a tag
+if git tag | grep -q "^${REVISION}$"; then
   # Check if archive does not exists
-  if [ ! -d "$ARCHIVE/$OLD_REVISION" ]; then
-    echo "# $BASENAME: archiving $OLD_REVISION..."
-    cp -alf $ASSETS $ARCHIVE/$OLD_REVISION
+  if [ ! -d "$ARCHIVE/$REVISION" ]; then
+    echo "# $BASENAME: archiving $REVISION..."
+    cp -alf $ASSETS $ARCHIVE/$REVISION
   else
-    echo "# $BASENAME: revision $OLD_REVISION already archived"
+    echo "# $BASENAME: revision $REVISION already archived"
   fi
 else
-  echo "# $BASENAME: not archiving: revision $OLD_REVISION is not a tag"
+  echo "# $BASENAME: not archiving: revision $REVISION is not a tag"
 fi
diff --git a/bin/assemble b/bin/assemble
index 04ae785..4c9d81c 100755
--- a/bin/assemble
+++ b/bin/assemble
@@ -32,3 +32,13 @@ fi
 if [ -e "$NOTEBOOK" ]; then
   mv $NOTEBOOK $BUILD/notes
 fi
+
+# Move Atom feed
+if [ -e "atom.xml" ]; then
+  mv atom.xml $BUILD
+fi
+
+# Move RSS feed
+if [ -e "rss.xml" ]; then
+  mv rss.xml $BUILD
+fi
diff --git a/bin/compile-book b/bin/compile-book
index e68a36d..a068fe7 100755
--- a/bin/compile-book
+++ b/bin/compile-book
@@ -12,6 +12,8 @@ OUTPUT="${1:-book}"
 REVISION="$2"
 DATE="$3"
 LANG="`grep lang _common.yml _book.yml _notes.yml 2> /dev/null | tail -1 | cut -d : -f 3 | sed -e 's/"//g' -e 's/ //g'`"
+METADATA=".metadata"
+LATEST="$METADATA/latest.txt"
 
 # Set the language
 if [ -z "$LANG" ]; then
@@ -32,6 +34,9 @@ rm -f $OUTPUT.md $OUTPUT.Rmd
 cat _book.yml   >> $OUTPUT.md ; echo "" >> $OUTPUT.md
 cat _common.yml >> $OUTPUT.md ; echo "" >> $OUTPUT.md
 
+# Build changelog
+$DIRNAME/compile-changelog
+
 # Bibliography
 $BASEDIR/bin/biblio-yml  > _biblio.yml
 cat _biblio.yml         >> $OUTPUT.md
@@ -74,3 +79,10 @@ fi
 
 # Symlink as a Bookdown source
 ln -sf $OUTPUT.md $OUTPUT.Rmd
+
+# Check if the revision is a tag
+if git tag | grep -q "^${REVISION}$"; then
+  # Save info on the latest tagged release
+  mkdir -p $METADATA
+  echo $REVISION > $LATEST
+fi
diff --git a/bin/compile-changelog b/bin/compile-changelog
new file mode 100755
index 0000000..862df31
--- /dev/null
+++ b/bin/compile-changelog
@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+#
+# Feed compiler
+# Based on https://recursewithless.net/projects/pandoc-feeds.html
+#
+
+# Parameters
+BASENAME="`basename $0 | sed -e 's/\(.\)/\U\1/'`"
+DIRNAME="`dirname $0`"
+BASEDIR="$DIRNAME/.."
+CHANGES="_changelog.yml"
+CHANGELOG="content/notes/00-changelog/changelog.md"
+BOOK="_book.yml"
+COMMON="_common.yml"
+META=".metadata/feed.yml"
+RSS_TMPL="$BASEDIR/templates/rss.xml"
+ATOM_TMPL="$BASEDIR/templates/atom.xml"
+CHANGELOG_TMPL="$BASEDIR/templates/changelog.md"
+CHANGES_TMPL="$BASEDIR/templates/_changelog.yml"
+URL="snippets/url.txt"
+CONTACT="snippets/contact.txt"
+
+# Ensure the changes file exists
+if [ ! -e "$CHANGES" ]; then
+  # Create sample $CHANGES file
+  cp $CHANGES_TMPL $CHANGES
+fi
+
+# Create .metadata/feed.yaml with the needed metadata
+mkdir -p "`dirname $META`"
+echo '---' > $META
+echo "url: $(cat $URL)"       >> $META
+echo "email: $(cat $CONTACT)" >> $META
+
+# Generate the Atom feed
+pandoc -M updated="$(LC_ALL=C date --iso-8601='seconds')" \
+    --metadata-file=$META                                 \
+    --metadata-file=$CHANGES                              \
+    --metadata-file=$BOOK                                 \
+    --metadata-file=$COMMON                               \
+    --template=$ATOM_TMPL                                 \
+    -t plain \
+    -o atom.xml < /dev/null
+
+# Generate the RSS feed
+pandoc -M updated="$(LC_ALL=C date '+%d %b %Y %T %z')" \
+    --metadata-file=$META                              \
+    --metadata-file=$CHANGES                           \
+    --metadata-file=$BOOK                              \
+    --metadata-file=$COMMON                            \
+    --template=$RSS_TMPL                               \
+    -t plain \
+    -o rss.xml < /dev/null
+
+# Generate changelog.md
+mkdir -p "`dirname $CHANGELOG`"
+pandoc                          \
+    --metadata-file=$META       \
+    --metadata-file=$CHANGES    \
+    --metadata-file=$BOOK       \
+    --metadata-file=$COMMON     \
+    --template=$CHANGELOG_TMPL  \
+    -t markdown \
+    -o $CHANGELOG < /dev/null
+
+# Fix list formatting in the Markdown output
+sed -i -e 's/-   /* /' $CHANGELOG