diff --git a/cd.sh b/cd.sh
index f1ee1f8..fe937f4 100644
--- a/cd.sh
+++ b/cd.sh
@@ -7,62 +7,61 @@ CD_NAME='cd'
 CD_REPOSITORIES_PARENT='rwx'
 
 function cd_set_environment {
-    #
     CD_DNS_FILE='/etc/resolv.conf'
     CD_ENV="$(mktemp)"
-case "${CD_OS_NAME}" in
-    'debian')
-        CD_PYTHON_COMMAND='python3'
-        CD_PYTHON_PACKAGES='/usr/lib/python3/dist-packages'
-        case "${CD_OS_VERSION}" in
-            'bookworm')
-                echo 'TODO'
-            ;;
-            *)
-                echo 'CD_OS_VERSION'
-                exit 2
-            ;;
-        esac
-    ;;
-    *)
-        echo 'CD_OS_NAME'
-        exit 1
-    ;;
-esac
-# project / branch
-[ "${CI_COMMIT_BRANCH}" ] && CD_PROJECT_BRANCH="${CI_COMMIT_BRANCH}"
-[ "${GITHUB_REF_NAME}" ] && CD_PROJECT_BRANCH="${GITHUB_REF_NAME}"
-if [ ! "${CD_PROJECT_BRANCH}" ] ; then
-    echo 'CD_PROJECT_BRANCH'
-    exit 3
-fi
-# project / name
-[ "${CI_PROJECT_PATH}" ] \
-&& CD_PROJECT_NAME="$(basename "${CI_PROJECT_PATH}")"
-[ "${GITHUB_REPOSITORY}" ] \
-&& CD_PROJECT_NAME="$(basename "${GITHUB_REPOSITORY}")"
-if [ ! "${CD_PROJECT_NAME}" ] ; then
-    echo 'CD_PROJECT_NAME'
-    exit 3
-fi
-# projects / group
-[ "${CI_PROJECT_PATH}" ] \
-&& CD_PROJECTS_GROUP="$(dirname "${CI_PROJECT_PATH}")"
-[ "${GITHUB_REPOSITORY}" ] \
-&& CD_PROJECTS_GROUP="$(dirname "${GITHUB_REPOSITORY}")"
-if [ ! "${CD_PROJECTS_GROUP}" ] ; then
-    echo 'CD_PROJECTS_GROUP'
-    exit 3
-fi
-# projects / url
-[ "${CI_SERVER_URL}" ] && CD_PROJECTS_URL="${CI_SERVER_URL}"
-[ "${GITHUB_SERVER_URL}" ] && CD_PROJECTS_URL="${GITHUB_SERVER_URL}"
-if [ "${CD_PROJECTS_URL}" ] ; then
-    CD_PROJECTS_URL+="/${CD_PROJECTS_GROUP}"
-else
-    echo 'CD_PROJECTS_URL'
-    exit 3
-fi
+    case "${CD_OS_NAME}" in
+        'debian')
+            CD_PYTHON_COMMAND='python3'
+            CD_PYTHON_PACKAGES='/usr/lib/python3/dist-packages'
+            case "${CD_OS_VERSION}" in
+                'bookworm')
+                    echo 'TODO'
+                ;;
+                *)
+                    echo 'CD_OS_VERSION'
+                    exit 2
+                ;;
+            esac
+        ;;
+        *)
+            echo 'CD_OS_NAME'
+            exit 1
+        ;;
+    esac
+    # project / branch
+    [ "${CI_COMMIT_BRANCH}" ] && CD_PROJECT_BRANCH="${CI_COMMIT_BRANCH}"
+    [ "${GITHUB_REF_NAME}" ] && CD_PROJECT_BRANCH="${GITHUB_REF_NAME}"
+    if [ ! "${CD_PROJECT_BRANCH}" ] ; then
+        echo 'CD_PROJECT_BRANCH'
+        exit 3
+    fi
+    # project / name
+    [ "${CI_PROJECT_PATH}" ] \
+    && CD_PROJECT_NAME="$(basename "${CI_PROJECT_PATH}")"
+    [ "${GITHUB_REPOSITORY}" ] \
+    && CD_PROJECT_NAME="$(basename "${GITHUB_REPOSITORY}")"
+    if [ ! "${CD_PROJECT_NAME}" ] ; then
+        echo 'CD_PROJECT_NAME'
+        exit 3
+    fi
+    # projects / group
+    [ "${CI_PROJECT_PATH}" ] \
+    && CD_PROJECTS_GROUP="$(dirname "${CI_PROJECT_PATH}")"
+    [ "${GITHUB_REPOSITORY}" ] \
+    && CD_PROJECTS_GROUP="$(dirname "${GITHUB_REPOSITORY}")"
+    if [ ! "${CD_PROJECTS_GROUP}" ] ; then
+        echo 'CD_PROJECTS_GROUP'
+        exit 3
+    fi
+    # projects / url
+    [ "${CI_SERVER_URL}" ] && CD_PROJECTS_URL="${CI_SERVER_URL}"
+    [ "${GITHUB_SERVER_URL}" ] && CD_PROJECTS_URL="${GITHUB_SERVER_URL}"
+    if [ "${CD_PROJECTS_URL}" ] ; then
+        CD_PROJECTS_URL+="/${CD_PROJECTS_GROUP}"
+    else
+        echo 'CD_PROJECTS_URL'
+        exit 3
+    fi
     # project / url
     CD_PROJECT_URL="${CD_PROJECTS_URL}/${CD_PROJECT_NAME}"
 }