Refine shell status icons and window controls; add installer

scripts/install.sh

@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+# Build as the invoking user; elevate only the versioned system installation.
+set -euo pipefail
+
+usage() {
+    cat <<'EOF'
+Usage: scripts/install.sh [options]
+
+Build and install Ferese's compositor, shell, CLI, and login-screen session.
+Run from any directory as your normal user. Existing user config is preserved.
+
+  --release-id ID  Name the installed release (default: UTC timestamp + PID)
+  --skip-build     Install existing target/release binaries
+  --offline        Build using only cached Cargo dependencies
+  --dry-run        Print commands without building or installing
+  -h, --help       Show this help
+
+The previous release remains available for rollback. Administrator
+authentication is requested only after a successful build.
+EOF
+}
+
+fail() { echo "ferese installer: $*" >&2; exit 1; }
+repo_dir=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)
+release_id="$(date -u +%Y%m%d-%H%M%S)-$$"
+skip_build=false
+offline=false
+dry_run=false
+while (($#)); do
+    case $1 in
+        --release-id)
+            (($# >= 2)) || fail '--release-id requires a value'
+            release_id=$2
+            shift 2
+            ;;
+        --skip-build) skip_build=true; shift ;;
+        --offline) offline=true; shift ;;
+        --dry-run) dry_run=true; shift ;;
+        -h|--help) usage; exit 0 ;;
+        *) fail "unknown option: $1 (see --help)" ;;
+    esac
+done
+[[ $release_id =~ ^[a-zA-Z0-9][a-zA-Z0-9._-]*$ ]] || fail 'invalid release ID'
+[[ $(uname -s) == Linux ]] || fail 'Ferese requires Linux'
+for tool in desktop-file-validate dbus-run-session; do
+    command -v "$tool" >/dev/null || fail "required command not found: $tool"
+done
+desktop-file-validate "$repo_dir/packaging/ferese.desktop"
+
+build=(cargo build --manifest-path "$repo_dir/Cargo.toml"
+    --target-dir "$repo_dir/target" --release --locked
+    -p ferese -p ferese-shell -p feresectl)
+if $offline; then build+=(--offline); fi
+if ! $skip_build; then
+    ((EUID != 0)) || fail 'build as your normal user, without sudo (or use --skip-build)'
+    command -v cargo >/dev/null || fail 'install the Rust toolchain and Cargo first'
+fi
+
+installer=(bash "$repo_dir/scripts/install-session.sh" "$release_id")
+if ((EUID != 0)); then
+    if command -v sudo >/dev/null; then
+        installer=(sudo "${installer[@]}")
+    elif command -v pkexec >/dev/null; then
+        installer=(pkexec /usr/bin/bash "$repo_dir/scripts/install-session.sh" "$release_id")
+    else
+        fail 'system installation requires sudo or pkexec'
+    fi
+fi
+
+if $dry_run; then
+    if ! $skip_build; then printf 'Build: '; printf '%q ' "${build[@]}"; printf '\n'; fi
+    printf 'Install: '; printf '%q ' "${installer[@]}"; printf '\n'
+    exit 0
+fi
+
+cd -- "$repo_dir"
+if ! $skip_build; then "${build[@]}"; fi
+for name in ferese ferese-shell feresectl; do
+    [[ -x $repo_dir/target/release/$name ]] || fail "missing release binary: $name"
+done
+"${installer[@]}"
+echo 'Installation complete. Log out and select Ferese at the login screen.'