tests/copy-src: always copy .git dir

This is required by a later commit that introduces flakes-based test
evaluation. Evaluating local flakes needs a repo dir.

test/lib/copy-src.sh

@@ -14,7 +14,7 @@ atExit() {
 trap "atExit" EXIT
 
 # shellcheck disable=SC2154
-rsync -a --delete --exclude='.git*' "$scriptDir/../" "$tmp/src"
+rsync -a --delete "$scriptDir/../" "$tmp/src"
 echo "Copied src"
 
 # shellcheck disable=SC2154

test/lib/create-git-repo.sh

@@ -1,15 +0,0 @@
-# Create and maintain a minimal git repo at the root of the copied src
-(
-  # shellcheck disable=SC2154,SC2164
-  cd "$scriptDir/.."
-  amend=(--amend)
-
-  if [[ ! -e .git ]] || ! git rev-parse HEAD 2>/dev/null; then
-    git init
-    amend=()
-  fi
-  git add .
-  if ! git diff --quiet --cached; then
-    git commit -a "${amend[@]}" -m -
-  fi
-) >/dev/null

test/run-tests.sh

@@ -277,11 +277,6 @@ flake() {
 nixosSearch() {
     if ! checkFlakeSupport "nixosSearch"; then return; fi
 
-    if [[ $_nixBitcoinInCopiedSrc ]]; then
-      # flake-info requires that its target flake is under version control
-      . "$scriptDir/lib/create-git-repo.sh"
-    fi
-
     if [[ $outLinkPrefix ]]; then
         # Add gcroots for flake-info
         nix build "$scriptDir/nixos-search#flake-info" -o "$outLinkPrefix-flake-info"