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Copy pathinstall.sh
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executable file
·180 lines (161 loc) · 7.7 KB
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#!/bin/bash
{
# Truncation guard: this brace group opens on line 2 and closes on the last
# line, so bash must read the entire file before it runs any command. On the
# `curl ... | bash` path, a download cut off anywhere before the final `}` is
# an unterminated compound command, which bash reports as a syntax error at
# EOF without running anything. Without the guard, a cut right after `set`
# would run the bare builtin and print every shell variable, and a cut right
# after `main` would run the installer without the caller's flags.
set -euo pipefail
PACKAGE="rea-agents"
REPOSITORY="morluto/rea"
numeric_identifier='(0|[1-9][0-9]*)'
prerelease_identifier="(${numeric_identifier}|[0-9A-Za-z-]*[A-Za-z-][0-9A-Za-z-]*)"
build_identifier='[0-9A-Za-z-]+'
version_pattern="${numeric_identifier}\\.${numeric_identifier}\\.${numeric_identifier}(-${prerelease_identifier}(\\.${prerelease_identifier})*)?(\\+${build_identifier}(\\.${build_identifier})*)?"
version="${REA_VERSION:-}"
dry_run=false
start_setup=true
verbose=false
fail() {
printf 'REA installation failed: %s\n' "$1" >&2
exit 1
}
# Bash can return status 0 while parsing an incomplete [[ condition. Keep that
# grammar in a constant quoted expression so truncated downloads fail while
# parsing the outer brace group. eval parses only this literal; the arguments
# are expanded as data by the conditional, not interpolated into shell code.
matches() {
eval '[[ "$1" =~ $2 ]]'
}
# Resolve the current host's Node.js tarball label pair; a label we cannot map
# is kept verbatim so the operator can still read it. Falls back on the raw
# `uname` outputs rather than inventing a label the Node.js release index does
# not publish, so a mismatch is obvious instead of silently wrong.
node_host_labels() {
case "$(uname -m)" in
arm64|aarch64) node_arch_label="arm64" ;;
x86_64|amd64) node_arch_label="x64" ;;
*) node_arch_label="$(uname -m)" ;;
esac
case "$(uname -s)" in
Darwin) node_os_label="darwin" ;;
Linux) node_os_label="linux" ;;
*) node_os_label="$(uname -s | tr '[:upper:]' '[:lower:]')" ;;
esac
}
# Exit with actionable remediation when the active Node.js is unsupported.
# The engine floor stays in sync with package.json#engines.node — change both.
fail_node_version() {
local observed="$1"
node_host_labels
printf 'REA installation failed: Node.js %s is unsupported.\n\n' "$observed" >&2
printf 'REA requires Node.js 22.x (>=22.19), 24.x (>=24.11), or 26+. Install one via:\n' >&2
printf ' nvm: nvm install 24 && nvm use 24 (https://github.com/nvm-sh/nvm)\n' >&2
printf ' fnm: fnm install 24 && fnm use 24 (https://github.com/Schniz/fnm)\n' >&2
printf ' Direct download for %s/%s:\n' "$node_os_label" "$node_arch_label" >&2
printf ' https://nodejs.org/dist/latest-v24.x/ (grab the %s-%s tarball)\n' "$node_os_label" "$node_arch_label" >&2
printf 'Then rerun this installer.\n' >&2
exit 1
}
usage() {
cat <<'EOF'
Usage: install.sh [--version VERSION] [--dry-run] [--no-setup] [--no-prompt] [--verbose]
Installs the REA CLI, then starts `rea setup` interactively to configure Hopper
and agents when a terminal is available. Pass --no-setup (or --no-prompt) to
skip setup and run `rea setup` later.
EOF
}
main() {
while (($# > 0)); do
case "$1" in
--version)
(($# >= 2)) || fail "--version requires a value."
version="$2"
shift 2
;;
--dry-run)
dry_run=true
shift
;;
--no-setup|--no-prompt)
start_setup=false
shift
;;
--verbose)
verbose=true
shift
;;
--help|-h)
usage
exit 0
;;
*) fail "unknown option: $1" ;;
esac
done
if [ "$verbose" = true ]; then
set -x
fi
platform="$(uname -s)"
[ "$platform" = "Darwin" ] || [ "$platform" = "Linux" ] || fail "REA supports macOS and selected 64-bit Linux distributions."
command -v curl >/dev/null 2>&1 || fail "curl is required. Install curl, then rerun this installer."
command -v node >/dev/null 2>&1 || fail "Node.js 22.x (>=22.19), 24.x (>=24.11), or 26+ is required; install it from https://nodejs.org and retry."
command -v npm >/dev/null 2>&1 || fail "npm is required; install it with Node.js and retry."
node_version="$(node -p 'process.versions.node' 2>/dev/null || true)"
IFS=. read -r node_major node_minor _node_patch <<<"$node_version"
matches "$node_major" '^[0-9]+$' && matches "$node_minor" '^[0-9]+$' || fail "the active Node.js version could not be read. Check that node works and is on PATH, then retry."
if ! matches "$_node_patch" '^[0-9]+(\+[0-9A-Za-z.-]+)?$' ||
! ((node_major == 22 && node_minor >= 19 || node_major == 24 && node_minor >= 11 || node_major >= 26)); then
fail_node_version "$node_version"
fi
if [ -n "$version" ]; then
matches "$version" "^${version_pattern}$" || fail "version must be an exact semantic version."
else
release_json="$(curl -fsSL --proto '=https' --tlsv1.2 --retry 3 -H 'Accept: application/vnd.github+json' "https://api.github.com/repos/$REPOSITORY/releases/latest")" || fail "the latest REA release could not be resolved. Check network access or pass --version VERSION, then retry."
tag="$(printf '%s' "$release_json" | node -e 'let s="";process.stdin.on("data",c=>s+=c).on("end",()=>{const v=JSON.parse(s).tag_name;if(typeof v!=="string")process.exit(1);process.stdout.write(v)})' 2>/dev/null)" || fail "the release response was invalid. Retry later or pass --version VERSION."
matches "$tag" "^rea-agents-(${version_pattern})$" || fail "the latest release tag was invalid. Retry later or pass --version VERSION."
version="${BASH_REMATCH[1]}"
fi
# npm's exact-version resolver cleans build metadata from the requested version,
# so it may install the base release and make the post-install identity check fail.
if matches "$version" '\+'; then
fail "npm cannot install an exact version with build metadata. Pass a version without build metadata, then retry."
fi
install_args=(install --global)
if [ "$platform" = "Linux" ]; then
install_args+=(--prefix "$HOME/.local")
install_bin="$HOME/.local/bin/rea"
else
npm_prefix="$(npm prefix --global)" || fail "the npm global prefix could not be read. Repair the npm configuration, then retry."
install_bin="$npm_prefix/bin/rea"
fi
install_args+=("$PACKAGE@$version")
printf 'REA install plan\n'
printf ' Version: %s\n' "$version"
printf ' Runtime: Node.js %s\n' "$node_version"
printf ' Command:'
printf ' %q' npm "${install_args[@]}"
printf '\n'
printf ' Binary: %s\n' "$install_bin"
printf ' Setup: %s\n' "$([ "$start_setup" = true ] && printf 'start when a terminal is available' || printf 'skipped')"
if [ "$dry_run" = true ]; then
printf 'Dry run complete; no changes made.\n'
exit 0
fi
printf 'Installing %s@%s...\n' "$PACKAGE" "$version"
npm "${install_args[@]}" || fail "npm could not install REA. Check registry access and npm permissions, then retry."
[ -x "$install_bin" ] || fail "npm completed without installing the rea command. Check the npm global bin directory and PATH, then retry."
installed_version="$("$install_bin" --version 2>/dev/null | tr -d '[:space:]')" || fail "the installed REA version could not be read. Reinstall the requested version, then retry."
[ "$installed_version" = "$version" ] || fail "installed version $installed_version does not match $version. Reinstall the requested version, then retry."
printf 'REA %s is installed.\n' "$version"
if [ "$start_setup" = true ] && [ -r /dev/tty ] && [ -w /dev/tty ] && [ -t 1 ]; then
printf 'Starting REA setup...\n'
"$install_bin" setup </dev/tty >/dev/tty
else
printf 'Run %s setup to configure Hopper and agents.\n' "$install_bin"
fi
}
main "$@"
exit $?
}