Update CI changelog checking script to ignore unstable components (#1342)

With this update to the script it should not be necessary to push a
changelog fragment nor set the label whenever a change to `unstable-*`
components is made.

Author: jasagredo

scripts/ci/check-changelogs.sh

@@ -5,6 +5,14 @@
 # - BASE_REF: what to compare this branch against
 
 packages=(ouroboros-consensus ouroboros-consensus-diffusion ouroboros-consensus-protocol ouroboros-consensus-cardano sop-extras strict-sop-core)
+tracked_libs=(ouroboros-consensus/src/ouroboros-consensus
+              ouroboros-consensus-diffusion/src/ouroboros-consensus-diffusion
+              ouroboros-consensus-protocol/src/ouroboros-consensus-protocol
+              ouroboros-consensus-cardano/src/shelley
+              ouroboros-consensus-cardano/src/byron
+              ouroboros-consensus-cardano/src/ouroboros-consensus-cardano
+              sop-extras
+              strict-sop-core)
 
 ok=1
 
@@ -24,20 +32,34 @@ if [ "${NO_CHANGELOG_LABEL}" = "true" ] || [ "${RELEASE_LABEL}" = "true" ]; then
     echo "Label set: No new changelog fragments expected"
 else
     echo "Checking for new changelog fragments:"
-    for p in "${packages[@]}"; do
+    for p in "${tracked_libs[@]}"; do
         printf "\t- %s\n" "$p"
-        if ! git diff --quiet --name-only "origin/${BASE_REF}" -- "$p/***.hs"|| ! git diff --quiet --name-only "origin/${BASE_REF}" -- "$p/***.cabal"; then
+        if ! git diff --quiet --name-only "origin/${BASE_REF}" -- "$p/***.hs"; then
             if ! git diff --quiet --name-only --diff-filter=A "origin/${BASE_REF}" -- "$p/changelog.d" ; then
                 printf "\t\tNew fragments found. OK.\n"
                 git diff --name-only --diff-filter=A "origin/${BASE_REF}" -- "$p/changelog.d" | sed 's/^/\t\t- /g'
             else
                 printf "\t\tNo new fragments found, but code changed. Please push a fragment or add the \"no changelog\" label to the PR. The diff follows:\n"
                 git --no-pager -c color.diff=always diff "origin/${BASE_REF}" -- "$p/***.hs" | sed 's/^/diff> /g'
+                ok=0
+            fi
+        else
+            printf "\t\tNo haskell code changes\n"
+        fi
+    done
+    for p in "${packages[@]}"; do
+        printf "\t- %s\n" "$p"
+        if ! git diff --quiet --name-only "origin/${BASE_REF}" -- "$p/***.cabal"; then
+            if ! git diff --quiet --name-only --diff-filter=A "origin/${BASE_REF}" -- "$p/changelog.d" ; then
+                printf "\t\tNew fragments found. OK.\n"
+                git diff --name-only --diff-filter=A "origin/${BASE_REF}" -- "$p/changelog.d" | sed 's/^/\t\t- /g'
+            else
+                printf "\t\tNo new fragments found, but code changed. Please push a fragment or add the \"no changelog\" label to the PR. The diff follows:\n"
                 git --no-pager -c color.diff=always diff "origin/${BASE_REF}" -- "$p/***.cabal" | sed 's/^/diff> /g'
                 ok=0
             fi
         else
-            printf "\t\tNo haskell/cabal code changes\n"
+            printf "\t\tNo cabal code changes\n"
         fi
     done
 fi