Restore errormessage CI coverage

.github/workflows/cgo.yml

@@ -1371,6 +1371,45 @@ jobs:
     - name: Run custom linters
       run: make golint-custom LINTER_FLAGS="-errstringmatch -panicinlibrarycode -manualmutexunlock -osexitinlibrary -rawloginlib -logfatallibrary -regexpcompileinfunction -fprintlnsprintf -strconvparseignorederror -jsonmarshalignoredeerror -uncheckedtypeassertion -fmterrorfnoverbs -tolowerequalfold -httpnoctx -timeafterleak -errortypeassertion -execcommandwithoutcontext -sprintfint -stringsindexcontains -stringscountcontains -bytesbufferstring -ioutildeprecated -mapclearloop -mapdeletecheck -sprintfbool -appendoneelement -timenowsub -stringsjoinone -writebytestring -lenstringsplit -stringreplaceminusone -osgetenvlibrary -ossetenvlibrary -stringsindexhasprefix -contextcancelnotdeferred -ctxbackground -wgdonenotdeferred -goroutinemissingrecover -trimleftright -walkfuncerrshadow -uncheckedflushreturn -bytescomparestring -nilctxpassed -stringbytesroundtrip -fileclosenotdeferred -timesleepnocontext -sprintferrorsnew -globwalkignorederror -appendbytestring -sortslice -deferinloop -regexpdynamicpattern -test=false"
 
+    - name: Determine errormessage lint scope
+      id: errormessage-scope
+      env:
+        EVENT_NAME: ${{ github.event_name }}
+        BASE_REF: origin/${{ github.base_ref }}
+        BEFORE_SHA: ${{ github.event.before }}
+      run: |
+        set -euo pipefail
+        files=""
+        if [ "$EVENT_NAME" = "pull_request" ]; then
+          if git rev-parse --verify "$BASE_REF" >/dev/null 2>&1; then
+            files=$(git diff --name-only "$BASE_REF...HEAD" -- '*.go' | tr '\n' ',' | sed 's/,$//')
+          else
+            echo "Base ref $BASE_REF not found, falling back to all Go files"
+            files=$(git ls-files '*.go' | tr '\n' ',' | sed 's/,$//')
+          fi
+        elif [ "$EVENT_NAME" = "push" ] && [ -n "$BEFORE_SHA" ] && [ "$BEFORE_SHA" != "0000000000000000000000000000000000000000" ]; then
+          if git rev-parse --verify "$BEFORE_SHA^{commit}" >/dev/null 2>&1; then
+            # Push events compare the before and after commit trees directly;
+            # PR events use base...HEAD above to match GitHub's pull request diff.
+            files=$(git diff --name-only "$BEFORE_SHA" HEAD -- '*.go' | tr '\n' ',' | sed 's/,$//')
+          else
+            echo "Before SHA $BEFORE_SHA not found, skipping push diff"
+          fi
+        fi
+
+        echo "files=$files" >> "$GITHUB_OUTPUT"
+        if [ -n "$files" ]; then
+          echo "linting files: $files"
+        else
+          echo "No changed Go files to lint"
+        fi
+
+    - name: Run errormessage linter on changed files
+      if: steps.errormessage-scope.outputs.files != ''
+      env:
+        CHANGED_GO_FILES: ${{ steps.errormessage-scope.outputs.files }}
+      run: /tmp/gh-aw-linters -errormessage -errormessage.changed-files="$CHANGED_GO_FILES" ./...
+
     - name: Run custom linters (wasm)
       run: GOOS=js GOARCH=wasm make golint-custom LINTER_FLAGS="-errstringmatch -panicinlibrarycode -manualmutexunlock -osexitinlibrary -rawloginlib -logfatallibrary -regexpcompileinfunction -fprintlnsprintf -strconvparseignorederror -jsonmarshalignoredeerror -uncheckedtypeassertion -fmterrorfnoverbs -tolowerequalfold -httpnoctx -timeafterleak -errortypeassertion -execcommandwithoutcontext -sprintfint -stringsindexcontains -stringscountcontains -bytesbufferstring -ioutildeprecated -mapclearloop -mapdeletecheck -sprintfbool -appendoneelement -timenowsub -stringsjoinone -writebytestring -lenstringsplit -stringreplaceminusone -osgetenvlibrary -ossetenvlibrary -stringsindexhasprefix -ctxbackground -wgdonenotdeferred -goroutinemissingrecover -trimleftright -walkfuncerrshadow -uncheckedflushreturn -bytescomparestring -nilctxpassed -stringbytesroundtrip -fileclosenotdeferred -timesleepnocontext -sprintferrorsnew -globwalkignorederror -appendbytestring -sortslice -deferinloop -regexpdynamicpattern -test=false" LINTER_PACKAGES="./pkg/console ./pkg/parser ./pkg/styles ./pkg/tty ./pkg/workflow"
 

.github/workflows/error-message-lint.yml

@@ -55,7 +55,7 @@ jobs:
         if: steps.changed.outputs.files != ''
         env:
           CHANGED_GO_FILES: ${{ steps.changed.outputs.files }}
-        run: /tmp/gh-aw-linters -errormessage.changed-files="$CHANGED_GO_FILES" ./...
+        run: /tmp/gh-aw-linters -errormessage -errormessage.changed-files="$CHANGED_GO_FILES" ./...
 
       - name: Check for bare fmt.Println/Printf in pkg/cli
         run: |