Fix ownership of local git repo used during tests

Using the --shared feature of init

.github/workflows/ci-docker.yml

@@ -28,7 +28,7 @@ jobs:
 
     steps:
     - name: Check out repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         submodules: true
 

scripts/ci-github.sh

@@ -13,10 +13,17 @@ pushd "$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
     . ../dev/functions.sh
 popd
 
-# Mark location safe to assuage git if necessary (happens in some distros)
+# Mark location safe to assuage git if necessary (happens under docker as we
+# run with a different user).
 if git status 2>&1 | grep -q "dubious ownership"; then
-    echo "Marking $PWD as safe for git"
-    git config --global --add safe.directory "$PWD"
+   echo "Marking $PWD as safe for git"
+   git config --global --add safe.directory "$PWD"
+
+   # Change ownership and group to current user of everything in the testsuite,
+   # as we have there some pre-created git repositories that would fail too.
+   # These are copied to temporary locations by the test runner, so we cannot
+   # simply use the `git config` trick.
+   sudo chown -R $(id -u):$(id -g) testsuite
 fi
 
 # Patch version

src/alire/alire-version.ads

@@ -16,7 +16,7 @@ private
    --  be replaced by `alr build` with the current commit, and appended with
    --  "_or_later" after build.
 
-   Current_Str : constant String := "2.1-dev";
+   Current_Str : constant String := "2.1-dev+367057b7";
    --  2.0.0:     alr settings refactor and minor fixes
    --  2.0.0-rc1: release candidate for 2.0
    --  2.0.0-b1:  first public release on the 2.0 branch

testsuite/fixtures/crates/libfoo_git/HEAD

@@ -1 +1 @@
-ref: refs/heads/master
+ref: refs/heads/main

testsuite/fixtures/crates/libfoo_git/config

@@ -2,3 +2,6 @@
 	repositoryformatversion = 0
 	filemode = true
 	bare = true
+	sharedrepository = 2
+[receive]
+	denyNonFastforwards = true