tools/create-changelog.sh: Add list of changed controls

We want to also mention the new/removed/renamed controls in the release
notes so that people can update their configs.

Author: t-b

tools/create-changelog.sh

@@ -33,3 +33,5 @@ fmt="(%h) %<(80,trunc)%s%w(0,0,10)%+b"
 old_tag=$(git describe --tags --abbrev=0 --match "Release_*")
 
 git --git-dir=$git_dir log --submodule=diff --no-merges --pretty="$fmt" $old_tag..HEAD > changelog.txt
+
+$top_level/tools/get-changed-controls.sh >> changelog.txt

tools/get-changed-controls.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+set -e
+# set -x
+
+old_tag=$(git describe --tags --abbrev=0 --match "Release_*")
+
+top_level=$(git rev-parse --show-toplevel)
+
+if [ -z "$top_level" ]
+then
+  echo "This is not a git repository"
+  exit 1
+fi
+
+for path in $(ls $top_level/Packages/MIES/*Macro.ipf)
+do
+  file=$(basename $path)
+
+  for revision in HEAD $old_tag
+  do
+    output=controls_${file}_${revision}
+    echo $output
+    git show $revision:Packages/MIES/$file | grep -i -P                                                                      \
+       "\b(Button|Checkbox|PopupMenu|ValDisplay|SetVariable|Chart|Slider|Tab|GroupBox|Titlebox|ListBox|CustomControl)\b.*" | \
+       cut -f 1 -d "," | cut -f 2 -d " " | sort | uniq > $output
+  done
+
+  diff --unified=0 controls_${file}_${old_tag} controls_${file}_HEAD > controls_${file}_diff || true
+
+  echo ""
+  echo "Changed controls for ${file}"
+  echo ""
+  cat controls_${file}_diff
+done