fix stdexec cleanup CI failures

Signed-off-by: guptapratykshh <pratykshgupta9999@gmail.com>

Author: guptapratykshh

.circleci/config.yml

@@ -636,13 +636,17 @@ jobs:
           when: always
           command: |
               ulimit -c unlimited
+              target_regex="$(
+                grep -v -e ^# -e ^$ /hpx/source/.circleci/tests.unit2.algorithms \
+                  | paste -sd'|' -
+              )"
+              regex="^(${target_regex})$"
               ctest \
                 --timeout 180 \
                 -T test \
                 --no-compress-output \
                 --output-on-failure \
-                --tests-regex \
-                  `grep -v -e ^# -e ^$ /hpx/source/.circleci/tests.unit2.algorithms | sed ':b;N;$!bb;s/\n/|/g'`
+                --tests-regex "${regex}"
       - run:
           <<: *convert_xml
       - run:

.github/actions/collect-artifacts/action.yml

@@ -20,27 +20,71 @@ runs:
   using: "composite"
   steps:
     - name: Convert XML
-      if: always() 
+      if: always()
       shell: bash
       run: |
         cd build
-        mkdir -p ${{ inputs.job-name }}
-        xsltproc \
-          ../.github/ci-scripts/conv.xsl Testing/$(head -n 1 < Testing/TAG)/Test.xml \
-          > ${{ inputs.job-name }}/Test.xml
-    
+        mkdir -p "${{ inputs.job-name }}"
+
+        test_xml=""
+        conversion_failed=false
+        if [[ -r Testing/TAG ]]; then
+          test_xml="Testing/$(head -n 1 < Testing/TAG)/Test.xml"
+        elif [[ -r Testing/Test.xml ]]; then
+          test_xml="Testing/Test.xml"
+        fi
+
+        if [[ -n "${test_xml}" && -r "${test_xml}" ]]; then
+          if ! xsltproc \
+            ../.github/ci-scripts/conv.xsl "${test_xml}" \
+            > "${{ inputs.job-name }}/Test.xml"; then
+            conversion_failed=true
+            rm -f "${{ inputs.job-name }}/Test.xml"
+            cp "${test_xml}" "${{ inputs.job-name }}/CTest-Test.xml"
+          fi
+        fi
+
+        if [[ ! -f "${{ inputs.job-name }}/Test.xml" ]]; then
+          if [[ "${conversion_failed}" == "true" ]]; then
+            printf '%s\n' \
+              '<testsuites>' \
+              '  <testsuite name="ctest-artifacts" tests="1" failures="0"'\
+              ' errors="1" skipped="0">' \
+              '    <testcase classname="collect-artifacts"'\
+              ' name="ctest-xml-conversion">' \
+              '      <error message="Failed to convert CTest XML with xsltproc"/>' \
+              '    </testcase>' \
+              '  </testsuite>' \
+              '</testsuites>' \
+              > "${{ inputs.job-name }}/Test.xml"
+          else
+            printf '%s\n' \
+              '<testsuites>' \
+              '  <testsuite name="ctest" tests="0" failures="0"'\
+              ' errors="0" skipped="0"/>' \
+              '</testsuites>' \
+              > "${{ inputs.job-name }}/Test.xml"
+          fi
+        fi
+
     - name: Move core dumps
       if: failure() && inputs.collect-failure-artifacts == 'true'
       shell: bash
       run: |
         cd build
-        mkdir -p ${{ inputs.job-name }}
-        cp core.* ${{ inputs.job-name }} || true
-    
+        mkdir -p "${{ inputs.job-name }}"
+        shopt -s nullglob
+        core_files=(core.*)
+        if (( ${#core_files[@]} != 0 )); then
+          cp "${core_files[@]}" "${{ inputs.job-name }}"
+        fi
+
     - name: Move debug logs
       if: failure() && inputs.collect-failure-artifacts == 'true'
       shell: bash
       run: |
         cd build
-        mkdir -p ${{ inputs.job-name }}
-        cp debug-log.txt ${{ inputs.job-name }} || true
+        mkdir -p "${{ inputs.job-name }}"
+        if [[ -f debug-log.txt ]]; then
+          cp debug-log.txt "${{ inputs.job-name }}"
+        fi