Repair symlinks in AWS codepipeline

buildspec-terraform-symlinks.yml

version: 0.2

phases:
  pre_build:
    commands:
      # Hack to fix the symlinks that Codepipeline breaks
      # Applies to .tf files that contain only 1 line
      - for file in *.tf ; do awk 'NR==2{exit}END{exit NR!=1}' "$file" && sh -c "cat $file | xargs -I R2 ln -sf R2 $file"; done

years later, this is still a super helpful gist!

In my case I had many yml files in folders with various levels of nesting that all needed to be symlinked. I ran into issues using glob patterns so i switched it out for find:

  pre_build:
    commands:
      # Hack to fix the symlinks that Codepipeline breaks when it clones the repo
      # Applies to .yml files that contain only 1 line (a broken symlink)
      - >
        symlink_files=$(find ./my-folder -name "*.yml" -type f);
        for file in $symlink_files; do
          if awk "NR==2{exit}END{exit NR!=1}" "$file"; then
            content=$(cat "$file")
            ln -sf "$content" "$file"
            echo "Created symlink for $file -> $content"
          fi
        done;