Add Linux fresh setup toolkit

2026-06-06 00:23:11 +00:00
parent 8cb92de06f
commit 4e739c5c99
25 changed files with 1646 additions and 0 deletions
@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=00-platform-guard.inc
+source "$SCRIPT_DIR/00-platform-guard.inc"
+SOURCE_FILE="$SCRIPT_DIR/../files/bashrc.d/ailab.sh"
+PROFILE_DIR="/root/.bashrc.d"
+PROFILE_FILE="$PROFILE_DIR/ailab.sh"
+BASHRC="/root/.bashrc"
+SOURCE_LINE='[[ -f /root/.bashrc.d/ailab.sh ]] && source /root/.bashrc.d/ailab.sh'
+
+backup_file() {
+  local path="$1"
+  local backup
+
+  backup="${path}.$(date '+%Y%m%d-%H%M%S').bak"
+  install -m 0644 "$path" "$backup"
+  printf 'INFO: backed up %s to %s\n' "$path" "$backup"
+}
+
+if ((EUID != 0)); then
+  printf 'CRITICAL: shell profile setup must run as root\n' >&2
+  exit 2
+fi
+require_supported_ubuntu
+if [[ ! -r "$SOURCE_FILE" ]]; then
+  printf 'CRITICAL: shell profile source is missing: %s\n' "$SOURCE_FILE" >&2
+  exit 2
+fi
+
+install -d -m 0755 "$PROFILE_DIR"
+if [[ ! -f "$PROFILE_FILE" ]] || ! cmp -s "$SOURCE_FILE" "$PROFILE_FILE"; then
+  if [[ -f "$PROFILE_FILE" ]]; then
+    backup_file "$PROFILE_FILE"
+  fi
+  install -m 0644 "$SOURCE_FILE" "$PROFILE_FILE"
+  printf 'OK: installed %s\n' "$PROFILE_FILE"
+else
+  printf 'OK: shell profile is already current\n'
+fi
+
+if [[ ! -f "$BASHRC" ]]; then
+  install -m 0644 /dev/null "$BASHRC"
+fi
+
+source_count="$(grep -Fxc "$SOURCE_LINE" "$BASHRC" || true)"
+if [[ "$source_count" != "1" ]]; then
+  tmp_bashrc="$(mktemp)"
+  trap 'rm -f "$tmp_bashrc"' EXIT
+  grep -Fvx "$SOURCE_LINE" "$BASHRC" >"$tmp_bashrc" || true
+  printf '\n%s\n' "$SOURCE_LINE" >>"$tmp_bashrc"
+  backup_file "$BASHRC"
+  install -m 0644 "$tmp_bashrc" "$BASHRC"
+  printf 'OK: configured %s to source the AI lab profile exactly once\n' "$BASHRC"
+else
+  printf 'OK: %s already sources the AI lab profile exactly once\n' "$BASHRC"
+fi