contextually/install.sh at main · syncropic/contextually · GitHub

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#!/bin/sh
# Contextually (cxl) installer
# Usage: curl -fsSL https://get.syncropic.com/cxl | sh
#
# Environment variables:
#   VERSION         - specific version (default: latest)
#   CXL_INSTALL_DIR - install directory (default: ~/.local/bin)

set -e

REPO="syncropic/contextually"
BINARY="cxl"

# Detect platform
OS="$(uname -s)"
ARCH="$(uname -m)"

case "$OS" in
  Linux)  PLATFORM="linux" ;;
  Darwin) PLATFORM="darwin" ;;
  *)      echo "Unsupported OS: $OS"; exit 1 ;;
esac

case "$ARCH" in
  x86_64|amd64) ARCH="x86_64" ;;
  aarch64|arm64) ARCH="aarch64" ;;
  *)            echo "Unsupported architecture: $ARCH"; exit 1 ;;
esac

ARTIFACT="cxl-${PLATFORM}-${ARCH}.tar.gz"

# Determine version
if [ -z "$VERSION" ]; then
  VERSION=$(curl -fsSL "https://api.github.com/repos/$REPO/releases/latest" | grep '"tag_name"' | sed 's/.*"tag_name": *"\([^"]*\)".*/\1/')
  if [ -z "$VERSION" ]; then
    echo "Failed to determine latest version"
    exit 1
  fi
fi

# Determine install directory
INSTALL_DIR="${CXL_INSTALL_DIR:-$HOME/.local/bin}"
if [ "$1" = "--global" ]; then
  INSTALL_DIR="/usr/local/bin"
fi

echo "Installing $BINARY $VERSION for ${PLATFORM}-${ARCH}..."

# Download
BASE_URL="https://github.com/$REPO/releases/download/$VERSION"
TMPDIR=$(mktemp -d)
trap 'rm -rf "$TMPDIR"' EXIT

curl -fsSL "$BASE_URL/$ARTIFACT" -o "$TMPDIR/$ARTIFACT"
curl -fsSL "$BASE_URL/checksums.sha256" -o "$TMPDIR/checksums.sha256"

# Verify checksum
cd "$TMPDIR"
EXPECTED=$(grep "$ARTIFACT" checksums.sha256 | awk '{print $1}')
if [ -n "$EXPECTED" ]; then
  if command -v sha256sum >/dev/null 2>&1; then
    ACTUAL=$(sha256sum "$ARTIFACT" | awk '{print $1}')
  elif command -v shasum >/dev/null 2>&1; then
    ACTUAL=$(shasum -a 256 "$ARTIFACT" | awk '{print $1}')
  else
    echo "Warning: no sha256sum or shasum found, skipping checksum verification"
    ACTUAL="$EXPECTED"
  fi
  if [ "$EXPECTED" != "$ACTUAL" ]; then
    echo "Checksum verification failed"
    echo "  Expected: $EXPECTED"
    echo "  Actual:   $ACTUAL"
    exit 1
  fi
fi

# Extract
tar xzf "$ARTIFACT"

# Install
mkdir -p "$INSTALL_DIR"
chmod +x "$BINARY"
mv "$BINARY" "$INSTALL_DIR/$BINARY"

echo "Installed $BINARY $VERSION to $INSTALL_DIR/$BINARY"

# Check PATH
case ":$PATH:" in
  *":$INSTALL_DIR:"*) ;;
  *)
    echo ""
    echo "Add $INSTALL_DIR to your PATH:"
    echo "  export PATH=\"$INSTALL_DIR:\$PATH\""
    ;;
esac