Handle case where /tmp directory is mounted with noexec

.github/workflows/test.yml

@@ -2,6 +2,13 @@ name: Test
 
 on: [ push ]
 
+env:
+  # This is required to support GLIB versions present in amazon linux 2. Can be removed once amazon linux 2 is 💀
+  # More info
+  #  - https://github.com/actions/checkout/issues/1809#issuecomment-2208202462
+  #  - https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/
+  ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
+
 jobs:
   test_python_installation:
     strategy:

README.md

@@ -59,4 +59,3 @@ will be used and hence will be very fast (4 to 5 seconds)
 ## Contributing
 
 Contributions are most welcome! See [CONTRIBUTING.md](./CONTRIBUTING.md)
-

action.yml

@@ -30,30 +30,33 @@ runs:
       shell: bash
       run: |
         exact_python_version="${{ steps.find-exact-python-version.outputs.exact_python_version }}"
-        echo "installation_directory=~/setup-python-amazon-linux/.python-versions/${exact_python_version}" >> $GITHUB_OUTPUT
+        echo "installation_directory=${HOME}/.setup-python-amazon-linux/.python-versions/${exact_python_version}" >> $GITHUB_OUTPUT
 
     - name: Cache
       id: cache-python
       uses: actions/cache@v3
       if: inputs.cache == 'true'
       with:
-        path: |
-          ${{ steps.set-installation-directory.outputs.installation_directory }}
+        path: ${{ steps.set-installation-directory.outputs.installation_directory }}
         key: python-${{ steps.find-exact-python-version.outputs.exact_python_version }}-${{ runner.arch }}
 
     - id: setup-python
       shell: bash
       if: inputs.cache == 'false' || (inputs.cache == 'true' && steps.cache-python.outputs.cache-hit != 'true')
       run: |
-        installation_directory=${{ steps.set-installation-directory.outputs.installation_directory }}
-        mkdir -p "${installation_directory}"
+        installation_directory="${{ steps.set-installation-directory.outputs.installation_directory }}"
         exact_python_version="${{ steps.find-exact-python-version.outputs.exact_python_version }}"
-        ${GITHUB_ACTION_PATH}/install-python.sh "${exact_python_version}" "${installation_directory}"
+
+        # Using a separate tmp directory instead of /tmp because in some OS images set a noexec option for the mount
+        # this is a better way compared to changing the mount options of /tmp
+        tmp_directory="${HOME}/.setup-python-amazon-linux/tmp"
+
+        ${GITHUB_ACTION_PATH}/install-python.sh "${exact_python_version}" "${installation_directory}" "${tmp_directory}"
 
     - name: Add python to PATH
       shell: bash
       run: |
-        installation_directory=${{ steps.set-installation-directory.outputs.installation_directory }}
+        installation_directory="${{ steps.set-installation-directory.outputs.installation_directory }}"
         echo "${installation_directory}/bin" >> "${GITHUB_PATH}"
 
         echo "The following python binaries are now available in the PATH"

install-python.sh

@@ -9,11 +9,16 @@ function set_aliases() {
 
 # Reference - https://realpython.com/installing-python/#how-to-build-python-from-source-code
 function setup_python() {
-  python_version="$1"
-  python_installation_dir="$2"
+  python_version="${1:?}"
+  python_installation_dir="${2:?}"
+  temp_dir="${3:?}"
 
   mkdir -p "${python_installation_dir}"
-  temp_dir=$(mktemp -d)
+  mkdir -p "${temp_dir}"
+  rm -rf "${python_installation_dir:?}/*"
+  rm -rf "${temp_dir:?}/*"
+
+  echo "Installing python from temporary directory ${temp_dir}"
   pushd "${temp_dir}" >/dev/null
     wget "https://www.python.org/ftp/python/${python_version}/Python-${python_version}.tgz"
     tar -zxf "Python-${python_version}.tgz"
@@ -34,4 +39,4 @@ function setup_python() {
   set_aliases
 }
 
-setup_python "$1" "$2"
+setup_python "$1" "$2" "$3"