1 files changed, 78 insertions, 0 deletions

diff --git a/bootstrap/git.sh b/bootstrap/git.sh
new file mode 100755
index 0000000..36d7067
--- /dev/null
+++ b/bootstrap/git.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+set -eu
+
+OS="$(uname -s)"
+
+die() {
+  printf 'Fehler: %s\n' "$*" >&2
+  exit 1
+}
+
+have() {
+  command -v "$1" >/dev/null 2>&1
+}
+
+check_prerequisites() {
+  case "$OS" in
+  Darwin)
+    if ! have brew; then
+      die "Homebrew ist nicht installiert."
+    fi
+    ;;
+  FreeBSD)
+    if ! have doas; then
+      die "doas ist nicht installiert."
+    fi
+    ;;
+  *)
+    die "Nicht unterstütztes Betriebssystem: $OS"
+    ;;
+  esac
+}
+
+setup_homebrew_env() {
+  case "$OS" in
+  Darwin)
+    export HOMEBREW_NO_AUTO_UPDATE=1
+    export HOMEBREW_NO_INSTALL_CLEANUP=1
+    ;;
+  esac
+}
+
+install_pkg() {
+  binary="$1"
+  package="$2"
+
+  if have "$binary"; then
+    printf "✓ %-32s vorhanden\n" "$binary"
+    return
+  fi
+
+  printf "→ Installiere %s\n" "$package"
+
+  case "$OS" in
+  Darwin)
+    brew install "$package"
+    ;;
+  FreeBSD)
+    doas pkg install -y "$package"
+    ;;
+  esac
+}
+
+install_prerequisites() {
+  install_pkg git git
+  install_pkg delta git-delta
+}
+
+main() {
+  check_prerequisites
+  setup_homebrew_env
+
+  install_prerequisites
+
+  printf "\nBootstrap abgeschlossen.\n"
+}
+
+main "$@"