MISC: mknews.sh: for release tags, copy news section from NEWS.md

Signed-off-by: Tim Janik <[email protected]>

misc/mknews.sh

@@ -23,18 +23,30 @@ fetch_news_version() # fetch_news_version {1|2}
 }
 
 # Produce assets/NEWS.md
-CURRENT_VERSION=$("${ABSPATHSCRIPT%/*}"/version.sh | (read v h d && echo $v))
-NEWS_TAG="v$(fetch_news_version 1)"
 
-echo "## Anklang $CURRENT_VERSION"
-echo
-echo 'Development version - may contain bugs or compatibility issues.'
-echo
-echo '``````````````````````````````````````````````````````````````````````````````````````'
-git log --pretty='%s    # %cd %an %h%n%w(0,4,4)%b' \
-    --reverse \
-    --first-parent --date=short "$NEWS_TAG..HEAD" |
-  sed -e '/^\s*Signed-off-by:.*<.*@.*>/d' |
-  sed '/^\s*$/{ N; /^\s*\n\s*$/D }'
-echo '``````````````````````````````````````````````````````````````````````````````````````'
-echo
+# When generating news for release tags...
+if RELEASETAG=$(git describe --match='v[0-9]*.[0-9]*.[0-9]*' --exact-match 2>/dev/null) ; then
+  # Copy release version news section from NEWS.md
+  SEDSEC1="
+    0,/^##?\s/n;		# Read ahead until first heading
+    /^##?\s/Q;			# Quit processing before printing second heading
+  "
+  sed -re "$SEDSEC1" < NEWS.md |
+    sed -z 's/\n\+$/\n/'	# Strip newlines at EOF
+else
+  # Generate pre-release news from git history
+  CURRENT_VERSION=$("${ABSPATHSCRIPT%/*}"/version.sh | (read v h d && echo $v))
+  NEWS_TAG="v$(fetch_news_version 1)"
+  echo "## Anklang $CURRENT_VERSION"
+  echo
+  echo 'Development version - may contain bugs or compatibility issues.'
+  echo
+  echo '``````````````````````````````````````````````````````````````````````````````````````'
+  git log --pretty='%s    # %cd %an %h%n%w(0,4,4)%b' \
+      --reverse \
+      --first-parent --date=short "$NEWS_TAG..HEAD" |
+    sed -e '/^\s*Signed-off-by:.*<.*@.*>/d' |
+    sed '/^\s*$/{ N; /^\s*\n\s*$/D }'
+  echo '``````````````````````````````````````````````````````````````````````````````````````'
+  echo
+fi