mirror of
https://github.com/rizsotto/Bear.git
synced 2026-05-28 00:20:45 +02:00
Laszlo Nagy
4914e0be17
Allows packagers to stage installations into a separate directory (e.g., DESTDIR=/tmp/pkg PREFIX=/usr ./scripts/install.sh) without affecting the runtime paths baked into generated scripts. Closes #682 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
296 lines
10 KiB
Bash
Executable File
296 lines
10 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-3.0-or-later
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#
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# Install script for Bear.
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#
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# Environment variables:
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# DESTDIR — staging directory prepended to all paths (default: empty)
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# PREFIX — installation prefix (default: /usr/local if root, $HOME/.local otherwise)
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# INTERCEPT_LIBDIR — library directory name (default: lib)
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# SRCDIR — directory containing build artifacts (default: target/release)
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#
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# Usage:
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# ./scripts/install.sh # install with defaults
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# ./scripts/install.sh --uninstall # remove previously installed files
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#
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# PREFIX=/usr INTERCEPT_LIBDIR=lib64 ./scripts/install.sh
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# DESTDIR=/tmp/staging PREFIX=/usr ./scripts/install.sh
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set -euxo pipefail
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# --- configuration -----------------------------------------------------------
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REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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PREFIX="${PREFIX:-}"
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if [ -z "$PREFIX" ]; then
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if [ "$(id -u)" -eq 0 ]; then
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PREFIX="/usr/local"
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else
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PREFIX="$HOME/.local"
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fi
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fi
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# Resolve to absolute path
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PREFIX="$(cd "$PREFIX" 2>/dev/null && pwd || echo "$PREFIX")"
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INTERCEPT_LIBDIR="${INTERCEPT_LIBDIR-lib}"
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DESTDIR="${DESTDIR:-}"
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# Strip trailing slash from DESTDIR to avoid double slashes
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DESTDIR="${DESTDIR%/}"
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UNINSTALL_SCRIPT="$PREFIX/share/bear/uninstall.sh"
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# --- safety guards ------------------------------------------------------------
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refuse_root_prefix() {
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if [ "$PREFIX" = "/" ]; then
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echo "error: refusing to operate with PREFIX=/ (would clobber the root filesystem)" >&2
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exit 1
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fi
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}
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validate_destdir() {
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if [ -n "$DESTDIR" ]; then
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case "$DESTDIR" in
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/*)
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;;
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*)
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echo "error: DESTDIR must be an absolute path, got: $DESTDIR" >&2
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exit 1
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;;
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esac
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fi
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}
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validate_intercept_libdir() {
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# Reject empty or whitespace-only values
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if [ -z "$(echo "$INTERCEPT_LIBDIR" | tr -d '[:space:]')" ]; then
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echo "error: INTERCEPT_LIBDIR must not be empty or whitespace-only" >&2
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exit 1
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fi
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# Reject absolute paths
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case "$INTERCEPT_LIBDIR" in
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/*)
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echo "error: INTERCEPT_LIBDIR must be a relative path, got: $INTERCEPT_LIBDIR" >&2
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exit 1
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;;
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esac
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}
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# --- artifact discovery -------------------------------------------------------
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# When run from the source repo, artifacts are in target/release/.
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# Override with SRCDIR to use a custom artifact directory (e.g. target/debug/).
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find_source_dir() {
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if [ -n "${SRCDIR:-}" ]; then
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echo "$SRCDIR"
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elif [ -d "$REPO_ROOT/target/release" ]; then
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echo "$REPO_ROOT/target/release"
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else
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echo "error: cannot find build artifacts in target/release/ or next to the script" >&2
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exit 1
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fi
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}
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# --- platform detection -------------------------------------------------------
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detect_platform() {
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OS="$(uname -s)"
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case "$OS" in
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Linux|FreeBSD|NetBSD|OpenBSD|DragonFly)
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PRELOAD_NAME="libexec.so"
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HAS_PRELOAD=true
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;;
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Darwin)
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PRELOAD_NAME="libexec.dylib"
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HAS_PRELOAD=true
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;;
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*)
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PRELOAD_NAME=""
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HAS_PRELOAD=false
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;;
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esac
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}
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# --- install ------------------------------------------------------------------
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do_install() {
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refuse_root_prefix
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validate_destdir
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validate_intercept_libdir
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detect_platform
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SRCDIR="$(find_source_dir)"
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# Start generating uninstall script (create directory first)
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mkdir -p "$DESTDIR$PREFIX/share/bear"
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cat > "$DESTDIR$UNINSTALL_SCRIPT" <<'UNINSTALL_HEADER'
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#!/bin/sh
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# Bear uninstall script
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# This script was generated during installation and removes all installed files.
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# Usage: sh uninstall.sh
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set -e
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UNINSTALL_HEADER
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# Helper to emit directory removal (only if not a protected system directory)
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emit_rmdir() {
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local dir="$1"
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local boundary="$2"
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local current="$dir"
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while [ "$current" != "$boundary" ] && [ -n "$current" ] && [ "$current" != "/" ]; do
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# Don't emit rmdir for common system directories
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case "$current" in
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/usr|/usr/local|/opt|/etc)
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# Protected - don't try to remove
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;;
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*)
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echo "rmdir '$current' 2>/dev/null || true" >> "$DESTDIR$UNINSTALL_SCRIPT"
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;;
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esac
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current="$(dirname "$current")"
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done
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}
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# bear-driver and bear-wrapper
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echo "# Remove bear binaries" >> "$DESTDIR$UNINSTALL_SCRIPT"
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mkdir -p "$DESTDIR$PREFIX/share/bear/bin"
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install -m 755 "$SRCDIR/bear-driver" "$DESTDIR$PREFIX/share/bear/bin/bear-driver"
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echo "rm -f '$PREFIX/share/bear/bin/bear-driver'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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install -m 755 "$SRCDIR/bear-wrapper" "$DESTDIR$PREFIX/share/bear/bin/bear-wrapper"
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echo "rm -f '$PREFIX/share/bear/bin/bear-wrapper'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/bear/bin" "$PREFIX"
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# preload library (Unix only)
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if [ "$HAS_PRELOAD" = true ] && [ -f "$SRCDIR/$PRELOAD_NAME" ]; then
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echo "" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "# Remove preload library" >> "$DESTDIR$UNINSTALL_SCRIPT"
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mkdir -p "$DESTDIR$PREFIX/share/bear/$INTERCEPT_LIBDIR"
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install -m 644 "$SRCDIR/$PRELOAD_NAME" "$DESTDIR$PREFIX/share/bear/$INTERCEPT_LIBDIR/$PRELOAD_NAME"
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echo "rm -f '$PREFIX/share/bear/$INTERCEPT_LIBDIR/$PRELOAD_NAME'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/bear/$INTERCEPT_LIBDIR" "$PREFIX"
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fi
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# bear entry script
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echo "" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "# Remove bear entry script" >> "$DESTDIR$UNINSTALL_SCRIPT"
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mkdir -p "$DESTDIR$PREFIX/bin"
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tmp_bear_sh="$(mktemp)"
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trap 'rm -f "$tmp_bear_sh"' EXIT
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cat > "$tmp_bear_sh" <<ENTRY_SCRIPT
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#!/bin/sh
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$PREFIX/share/bear/bin/bear-driver "\$@"
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ENTRY_SCRIPT
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install -m 755 "$tmp_bear_sh" "$DESTDIR$PREFIX/bin/bear"
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rm -f "$tmp_bear_sh"
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trap - EXIT
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echo "rm -f '$PREFIX/bin/bear'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/bin" "$PREFIX"
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# man page
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if [ -f "$REPO_ROOT/man/bear.1" ]; then
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echo "" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "# Remove man page" >> "$DESTDIR$UNINSTALL_SCRIPT"
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mkdir -p "$DESTDIR$PREFIX/share/man/man1"
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install -m 644 "$REPO_ROOT/man/bear.1" "$DESTDIR$PREFIX/share/man/man1/bear.1"
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echo "rm -f '$PREFIX/share/man/man1/bear.1'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/man/man1" "$PREFIX"
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fi
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# documentation
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echo "" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "# Remove documentation" >> "$DESTDIR$UNINSTALL_SCRIPT"
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mkdir -p "$DESTDIR$PREFIX/share/doc/bear"
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if [ -f "$REPO_ROOT/README.md" ]; then
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install -m 644 "$REPO_ROOT/README.md" "$DESTDIR$PREFIX/share/doc/bear/README.md"
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echo "rm -f '$PREFIX/share/doc/bear/README.md'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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fi
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if [ -f "$REPO_ROOT/COPYING" ]; then
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install -m 644 "$REPO_ROOT/COPYING" "$DESTDIR$PREFIX/share/doc/bear/COPYING"
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echo "rm -f '$PREFIX/share/doc/bear/COPYING'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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fi
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emit_rmdir "$PREFIX/share/doc/bear" "$PREFIX"
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# shell completions (optional — only installed when generated files are present)
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COMPLETIONS_DIR="$SRCDIR/completions"
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if [ -d "$COMPLETIONS_DIR" ]; then
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echo "" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "# Remove shell completions" >> "$DESTDIR$UNINSTALL_SCRIPT"
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if [ -f "$COMPLETIONS_DIR/bear.bash" ]; then
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mkdir -p "$DESTDIR$PREFIX/share/bash-completion/completions"
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install -m 644 "$COMPLETIONS_DIR/bear.bash" "$DESTDIR$PREFIX/share/bash-completion/completions/bear"
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echo "rm -f '$PREFIX/share/bash-completion/completions/bear'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/bash-completion/completions" "$PREFIX"
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fi
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if [ -f "$COMPLETIONS_DIR/_bear" ]; then
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mkdir -p "$DESTDIR$PREFIX/share/zsh/site-functions"
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install -m 644 "$COMPLETIONS_DIR/_bear" "$DESTDIR$PREFIX/share/zsh/site-functions/_bear"
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echo "rm -f '$PREFIX/share/zsh/site-functions/_bear'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/zsh/site-functions" "$PREFIX"
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fi
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if [ -f "$COMPLETIONS_DIR/bear.fish" ]; then
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mkdir -p "$DESTDIR$PREFIX/share/fish/vendor_completions.d"
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install -m 644 "$COMPLETIONS_DIR/bear.fish" "$DESTDIR$PREFIX/share/fish/vendor_completions.d/bear.fish"
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echo "rm -f '$PREFIX/share/fish/vendor_completions.d/bear.fish'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/fish/vendor_completions.d" "$PREFIX"
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fi
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if [ -f "$COMPLETIONS_DIR/bear.elv" ]; then
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mkdir -p "$DESTDIR$PREFIX/share/elvish/lib"
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install -m 644 "$COMPLETIONS_DIR/bear.elv" "$DESTDIR$PREFIX/share/elvish/lib/bear.elv"
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echo "rm -f '$PREFIX/share/elvish/lib/bear.elv'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/elvish/lib" "$PREFIX"
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fi
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fi
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# Remove the uninstall script itself
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echo "" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "# Remove uninstall script" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "rm -f '$UNINSTALL_SCRIPT'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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emit_rmdir "$PREFIX/share/bear" "$PREFIX"
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echo "" >> "$DESTDIR$UNINSTALL_SCRIPT"
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echo "echo 'Bear uninstalled from $PREFIX'" >> "$DESTDIR$UNINSTALL_SCRIPT"
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# Make uninstall script non-executable (must be invoked explicitly)
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chmod 644 "$DESTDIR$UNINSTALL_SCRIPT"
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echo "Bear installed to $PREFIX"
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echo "Uninstall script written to $UNINSTALL_SCRIPT"
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}
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# --- uninstall ----------------------------------------------------------------
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do_uninstall() {
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refuse_root_prefix
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validate_destdir
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if [ ! -f "$DESTDIR$UNINSTALL_SCRIPT" ]; then
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echo "error: no uninstall script found at $DESTDIR$UNINSTALL_SCRIPT" >&2
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echo "Cannot uninstall without the uninstall script." >&2
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exit 1
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fi
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# Execute the generated uninstall script
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sh "$DESTDIR$UNINSTALL_SCRIPT"
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}
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# --- main ---------------------------------------------------------------------
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case "${1:-}" in
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--uninstall)
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do_uninstall
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;;
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"")
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do_install
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;;
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*)
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echo "usage: $0 [--uninstall]" >&2
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exit 1
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;;
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esac
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