minor refactor

- simplify CSV reading logic
- add more comments
- rework the packaging script
- remove debug information for git tags

.github/actions/build/action.yml

@@ -17,9 +17,15 @@ runs:
   steps:
 
     - name: Convert input targets to Bash array
+      # read comma-separated list of targets, converts it to
+      # an array of arguments for cargo-zigbuild like this:
+      # [ "--target", "<target1>", "--target", "<target2>", ... ]
       shell: bash
       run: |
-        readarray -d $'\0' -t targets < <(awk -F, '{ for (i = 1; i <= NF; i++) printf "--target\0%s\0", $i }' <<< "${{ inputs.targets }}")
+        targets=()
+        while IFS=',' read -r target
+        do targets+=("--target" "$target")
+        done <<< "${{ inputs.targets }}"
         declare -p targets > /tmp/targets.sh
 
     - name: Check with cargo-fmt
@@ -27,7 +33,7 @@ runs:
       shell: sh
       run: cargo fmt -v --all -- --check
 
-    - name: Run Clippy
+    - name: Run Clippy with cargo-zigbuild
       if:  inputs.lint == true
       shell: bash
       run: |

.github/actions/dependencies/action.yml

@@ -12,6 +12,13 @@ runs:
 
     - name: Install Zig
       shell: bash
+      # the `--transform` options are used to install Zig in the /usr/local/:
+      # */zig -> /usr/local/bin/zig
+      # */lib/ -> /usr/local/lib/zig/
+      # the rest is not really necessary, but for consistency:
+      # */doc/ -> /usr/local/share/doc/zig/
+      # */LICENSE -> /usr/local/share/doc/zig/copyright
+      # */README.md -> /usr/local/share/doc/zig/README.md
       run: |
         ZIG_VERSION="${{ inputs.zig-version }}"
         [ "$RUNNER_ARCH" == "X64" ] && ZIG_ARCH="x86_64" || ZIG_ARCH="aarch64"