Have final `cp` use `-a` flag over `-r` flag. (#12)

* Try with cp archive.

* With rm instead.

* Avoid rm completely.

* Pass.

* Favor cp -a.

specs/clang/runner

@@ -52,4 +52,4 @@ chmod 755 "$BUILD"/.githooks/pre-commit
 # ============================================================
 
 # Success! Copy contents to target directory.
-cp -r "$BUILD"/* "$OUT"
+cp -a "$BUILD"/* "$OUT"

specs/mix/runner

@@ -85,4 +85,4 @@ sed -i "s/<APP>/$APP/g" "$BUILD/flake.nix"
 # ============================================================
 
 # Success! Copy contents to target directory.
-cp -r "$BUILD"/* "$OUT"
+cp -a "$BUILD"/* "$OUT"

specs/nodejs/runner

@@ -70,4 +70,4 @@ nix develop "$BUILD" --command bash -c \
 # ============================================================
 
 # Success! Copy contents to target directory.
-cp -r "$BUILD"/!(bs.nodejs) "$OUT"
+cp -a "$BUILD"/!(bs.nodejs) "$OUT"

specs/phoenix/runner

@@ -73,7 +73,8 @@ chmod 644 "$BUILD"/README.md
 
 # Include additional build files for our assets. Group into subdirectory so
 # the `chmod` command can take advantage of globbing.
-cp -r assets "$BUILD"/bs.assets
+mkdir -p "$BUILD"/bs.assets
+cp assets/* "$BUILD"/bs.assets
 chmod 644 "$BUILD"/bs.assets/*
 mv "$BUILD"/bs.assets/* "$BUILD"/assets
 rmdir "$BUILD"/bs.assets
@@ -128,4 +129,4 @@ EOF
 # ============================================================
 
 # Success! Copy contents to target directory.
-cp -r "$BUILD"/* "$OUT"
+cp -a "$BUILD"/* "$OUT"

specs/poetry/runner

@@ -52,4 +52,4 @@ chmod 755 "$BUILD"/.githooks/pre-commit
 # ============================================================
 
 # Success! Copy contents to target directory.
-cp -r "$BUILD"/* "$OUT"
+cp -a "$BUILD"/* "$OUT"

specs/postgres/runner

@@ -53,4 +53,4 @@ find "$BUILD" -type f -execdir chmod 644 {} +
 # ============================================================
 
 # Success! Copy contents to target directory.
-cp -r "$BUILD"/* "$OUT"
+cp -a "$BUILD"/* "$OUT"