linko/install.sh at main · Devehab/linko

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

#!/usr/bin/env bash

# linko installer

# curl -fsSL https://raw.githubusercontent.com/Devehab/linko/main/install.sh | bash

# Environment variables:

# LINKO_VERSION version to install (default: latest)

# LINKO_INSTALL install directory (default: /usr/local/bin, or ~/.local/bin)

set -euo pipefail

REPO="${LINKO_REPO:-Devehab/linko}"

VERSION="${LINKO_VERSION:-latest}"

BINARY="linko"

DOCS_URL="https://github.com/${REPO}/blob/main/GUIDE.md"

red() { printf '\033[31m%s\033[0m\n' "$*"; }

green() { printf '\033[32m%s\033[0m\n' "$*"; }

dim() { printf '\033[2m%s\033[0m\n' "$*"; }

die() { red "error: $*" >&2; exit 1; }

# TMP must be global: the EXIT trap fires after main() returns, so a variable

# scoped to main() would be unset by then and `set -u` would abort.

TMP=""

cleanup() { [ -n "${TMP:-}" ] && rm -rf "$TMP"; return 0; }

trap cleanup EXIT

detect_platform() {

local os arch

os="$(uname -s | tr '[:upper:]' '[:lower:]')"

arch="$(uname -m)"

# Return non-zero rather than dying: the caller falls back to building from

# source, which covers platforms we do not ship binaries for.

# Git Bash, MSYS2 and Cygwin all report their own kernel name rather than

# "windows", so without this the one-liner silently fell through to a source

# build and only worked if Go happened to be installed.

case "$os" in

linux|darwin) ;;

mingw*|msys*|cygwin*|windows*) os="windows" ;;

*) return 1 ;;

esac

case "$arch" in

x86_64|amd64) arch="amd64" ;;

arm64|aarch64) arch="arm64" ;;

*) return 1 ;;

esac

echo "${os}_${arch}"

}

# How to install Go on this machine, in the user's own package manager.

go_install_hint() {

case "$(uname -s)" in

Darwin)

echo " brew install go"

echo " # no Homebrew? download the .pkg from https://go.dev/dl/"

;;

Linux)

echo " sudo apt install golang-go # Debian / Ubuntu"

echo " sudo dnf install golang # Fedora"

echo " sudo pacman -S go # Arch"

echo " # or download the tarball from https://go.dev/dl/"

;;

echo " https://go.dev/dl/"

;;

esac

}

find_go() {

command -v go >/dev/null 2>&1 && return 0

# The official macOS/Linux packages install here without touching PATH.

local c

for c in /usr/local/go/bin /opt/homebrew/bin "$HOME/go/bin"; do

if [ -x "$c/go" ]; then

PATH="$c:$PATH"; export PATH

dim "found go in $c (not on your PATH)"

return 0

done

return 1

}

build_from_source() {

local dest="$1" ref="${2:-$VERSION}"

if ! find_go; then

echo

red "! There is no prebuilt binary for $(uname -s)/$(uname -m),"

red " and building from source needs Go, which is not installed."

echo

echo " Install Go, then run this installer again:"

go_install_hint

echo

exit 1

dim "building from source with $(go version | awk '{print $3}')"

# Stamp the version, otherwise `linko --version` reports "dev".

GOBIN="$dest" go install -ldflags "-s -w -X main.version=${ref#v}" \

"github.com/${REPO}@${ref}" || die "build from source failed"

}

# unpack <archive> <dir> — tar.gz everywhere, zip on Windows.

unpack() {

case "$1" in

*.zip)

if command -v unzip >/dev/null 2>&1; then

unzip -q -o "$1" -d "$2"

elif tar -xf "$1" -C "$2" 2>/dev/null; then

: # Windows 10+ ships bsdtar, which reads zip archives

else

die "extracting $1 needs unzip, or a tar that understands zip"

;;

tar -xzf "$1" -C "$2" || die "could not unpack $1"

;;

esac

}

on_path() {

case ":${PATH}:" in

*":$1:"*) return 0 ;;

*) return 1 ;;

esac

}

# Prefer a directory that is ALREADY on the user's PATH, so `linko` works the

# moment this script finishes. Only fall back to ~/.local/bin — which is often

# not on PATH — when nothing better is writable, and patch the shell profile

# in that case.

choose_install_dir() {

local d

if [ -n "${LINKO_INSTALL:-}" ]; then

echo "$LINKO_INSTALL"; return

for d in /opt/homebrew/bin /usr/local/bin "$HOME/.local/bin" "$HOME/bin"; do

if on_path "$d" && [ -d "$d" ] && [ -w "$d" ]; then echo "$d"; return; fi

done

for d in /opt/homebrew/bin /usr/local/bin; do

if [ -d "$d" ] && [ -w "$d" ]; then echo "$d"; return; fi

done

echo "$HOME/.local/bin"

}

# Append the PATH line to whichever shell profiles exist, once.

add_to_profiles() {

local dir="$1" line rc touched=0

line="export PATH=\"${dir}:\$PATH\""

for rc in "$HOME/.zshrc" "$HOME/.bashrc" "$HOME/.bash_profile" "$HOME/.profile"; do

[ -f "$rc" ] || continue

touched=1

grep -qF "$dir" "$rc" 2>/dev/null && continue

printf '\n# added by the linko installer\n%s\n' "$line" >> "$rc"

dim "added ${dir} to $(basename "$rc")"

done

if [ "$touched" = "0" ]; then

rc="$HOME/.profile"

case "${SHELL:-}" in

*/zsh) rc="$HOME/.zshrc" ;;

*/bash) rc="$HOME/.bashrc" ;;

esac

printf '# added by the linko installer\n%s\n' "$line" >> "$rc"

dim "created $(basename "$rc") with ${dir} on PATH"

}

resolve_version() {

if [ "$VERSION" != "latest" ]; then

echo "$VERSION"

return

local url tag

url="https://api.github.com/repos/${REPO}/releases/latest"

tag="$(curl -fsSL "$url" | grep -m1 '"tag_name"' | cut -d'"' -f4 || true)"

[ -n "$tag" ] || die "could not determine the latest version — set LINKO_VERSION"

echo "$tag"

}

main() {

command -v curl >/dev/null 2>&1 || die "curl is required"

command -v tar >/dev/null 2>&1 || die "tar is required"

local platform version tag archive url dest exe ext

dest="$(choose_install_dir)"

mkdir -p "$dest"

platform="$(detect_platform)" || platform=""

exe="$BINARY"

ext="tar.gz"

case "$platform" in

windows_*) exe="${BINARY}.exe"; ext="zip" ;;

esac

if [ -z "$platform" ]; then

dim "no prebuilt binary for $(uname -s)/$(uname -m)"

build_from_source "$dest"

else

tag="$(resolve_version)"

version="${tag#v}"

archive="${BINARY}_${version}_${platform}.${ext}"

url="https://github.com/${REPO}/releases/download/${tag}/${archive}"

dim "Installing ${BINARY} ${tag} (${platform})"

TMP="$(mktemp -d)"

if curl -fsSL "$url" -o "$TMP/$archive"; then

unpack "$TMP/$archive" "$TMP"

[ -f "$TMP/$exe" ] || die "the archive does not contain ${exe}"

chmod +x "$TMP/$exe"

if [ -w "$dest" ]; then

mv "$TMP/$exe" "$dest/$exe"

else

dim "elevating with sudo to write to $dest"

sudo mv "$TMP/$exe" "$dest/$exe"

else

dim "no release archive at $url — building from source instead"

build_from_source "$dest" "$tag"

[ -x "$dest/$exe" ] || die "installation failed: $dest/$exe is missing"

# Prove the binary actually runs here. A wrong architecture or a libc

# mismatch surfaces as "cannot execute binary file", which is far easier to

# act on now than the first time the user types `linko`.

if ! "$dest/$exe" --version >/dev/null 2>&1; then

red "! ${BINARY} was installed but will not run on this system"

echo " $("$dest/$exe" --version 2>&1 | head -1)"

echo

echo " Please open an issue with the output of:"

echo " uname -sm && ldd --version 2>&1 | head -1"

echo " https://github.com/${REPO}/issues"

exit 1

green "✓ ${BINARY} installed to ${dest}/${exe}"

echo

if on_path "$dest"; then

echo "Next step:"

echo " linko init"

else

add_to_profiles "$dest"

echo

echo "Next steps:"

echo " exec \$SHELL # reload your shell once"

echo " linko init"

echo

echo "Before that you need a Cloudflare API token with BOTH permissions:"

echo " Zone -> DNS -> Edit"

echo " Account -> Cloudflare Tunnel -> Edit"

echo " Create it at https://dash.cloudflare.com/profile/api-tokens"

echo

echo "Full guide (install, token, commands, troubleshooting):"

green " ${DOCS_URL}"

echo " or run: linko docs"

}

main "$@"

FilesExpand file tree

install.sh

Latest commit

History

install.sh

File metadata and controls