set -euo pipefail

APP=opencode

MUTED='\033[0;2m'

RED='\033[0;31m'

ORANGE='\033[38;5;214m'

NC='\033[0m' # No Color

usage() {

cat <<EOF

}

requested_version=${VERSION:-}

no_modify_path=false

binary_path=""

while [[ $# -gt 0 ]]; do

case "$1" in

-h|--help)

usage

exit 0

;;

-v|--version)

if [[ -n "${2:-}" ]]; then

requested_version="$2"

shift 2

else

echo -e "${RED}Error: --version requires a version argument${NC}"

exit 1

fi

;;

-b|--binary)

if [[ -n "${2:-}" ]]; then

binary_path="$2"

shift 2

else

echo -e "${RED}Error: --binary requires a path argument${NC}"

exit 1

fi

;;

--no-modify-path)

no_modify_path=true

shift

;;

*)

echo -e "${ORANGE}Warning: Unknown option '$1'${NC}" >&2

shift

;;

esac

INSTALL_DIR=$HOME/.opencode/bin

mkdir -p "$INSTALL_DIR"

if [ -n "$binary_path" ]; then

if [ ! -f "$binary_path" ]; then

echo -e "${RED}Error: Binary not found at ${binary_path}${NC}"

exit 1

fi

specific_version="local"

raw_os=$(uname -s)

os=$(echo "$raw_os" | tr '[:upper:]' '[:lower:]')

case "$raw_os" in

Darwin*) os="darwin" ;;

Linux*) os="linux" ;;

MINGW*|MSYS*|CYGWIN*) os="windows" ;;

esac

arch=$(uname -m)

if [[ "$arch" == "aarch64" ]]; then

arch="arm64"

fi

if [[ "$arch" == "x86_64" ]]; then

arch="x64"

fi

if [ "$os" = "darwin" ] && [ "$arch" = "x64" ]; then

rosetta_flag=$(sysctl -n sysctl.proc_translated 2>/dev/null || echo 0)

if [ "$rosetta_flag" = "1" ]; then

arch="arm64"

fi

fi

combo="$os-$arch"

case "$combo" in

linux-x64|linux-arm64|darwin-x64|darwin-arm64|windows-x64)

;;

*)

echo -e "${RED}Unsupported OS/Arch: $os/$arch${NC}"

exit 1

;;

esac

archive_ext=".zip"

if [ "$os" = "linux" ]; then

archive_ext=".tar.gz"

fi

is_musl=false

if [ "$os" = "linux" ]; then

if [ -f /etc/alpine-release ]; then

is_musl=true

fi

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

if ldd --version 2>&1 | grep -qi musl; then

is_musl=true

fi

fi

fi

needs_baseline=false

if [ "$arch" = "x64" ]; then

if [ "$os" = "linux" ]; then

if ! grep -qwi avx2 /proc/cpuinfo 2>/dev/null; then

needs_baseline=true

fi

fi

if [ "$os" = "darwin" ]; then

avx2=$(sysctl -n hw.optional.avx2_0 2>/dev/null || echo 0)

if [ "$avx2" != "1" ]; then

needs_baseline=true

fi

fi

if [ "$os" = "windows" ]; then

ps="(Add-Type -MemberDefinition \"[DllImport(\"\"kernel32.dll\"\")] public static extern bool IsProcessorFeaturePresent(int ProcessorFeature);\" -Name Kernel32 -Namespace Win32 -PassThru)::IsProcessorFeaturePresent(40)"

out=""

if command -v powershell.exe >/dev/null 2>&1; then

out=$(powershell.exe -NoProfile -NonInteractive -Command "$ps" 2>/dev/null || true)

elif command -v pwsh >/dev/null 2>&1; then

out=$(pwsh -NoProfile -NonInteractive -Command "$ps" 2>/dev/null || true)

fi

out=$(echo "$out" | tr -d '\r' | tr '[:upper:]' '[:lower:]' | tr -d '[:space:]')

if [ "$out" != "true" ] && [ "$out" != "1" ]; then

needs_baseline=true

fi

fi

fi

target="$os-$arch"

if [ "$needs_baseline" = "true" ]; then

target="$target-baseline"

fi

if [ "$is_musl" = "true" ]; then

target="$target-musl"

fi

filename="$APP-$target$archive_ext"

if [ "$os" = "linux" ]; then

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

echo -e "${RED}Error: 'tar' is required but not installed.${NC}"

exit 1

fi

else

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

echo -e "${RED}Error: 'unzip' is required but not installed.${NC}"

exit 1

fi

fi

if [ -z "$requested_version" ]; then

url="https://github.com/anomalyco/opencode/releases/latest/download/$filename"

specific_version=$(curl -s https://api.github.com/repos/anomalyco/opencode/releases/latest | sed -n 's/.*"tag_name": *"v\([^"]*\)".*/\1/p')

if [[ $? -ne 0 || -z "$specific_version" ]]; then

echo -e "${RED}Failed to fetch version information${NC}"

exit 1

fi

else

# Strip leading 'v' if present

requested_version="${requested_version#v}"

url="https://github.com/anomalyco/opencode/releases/download/v${requested_version}/$filename"

specific_version=$requested_version

# Verify the release exists before downloading

http_status=$(curl -sI -o /dev/null -w "%{http_code}" "https://github.com/anomalyco/opencode/releases/tag/v${requested_version}")

if [ "$http_status" = "404" ]; then

echo -e "${RED}Error: Release v${requested_version} not found${NC}"

echo -e "${MUTED}Available releases: https://github.com/anomalyco/opencode/releases${NC}"

exit 1

fi

fi

print_message() {

local level=$1

local message=$2

local color=""

case $level in

info) color="${NC}" ;;

warning) color="${NC}" ;;

error) color="${RED}" ;;

esac

echo -e "${color}${message}${NC}"

}

check_version() {

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

opencode_path=$(which opencode)

## Check the installed version

installed_version=$(opencode --version 2>/dev/null || echo "")

if [[ "$installed_version" != "$specific_version" ]]; then

print_message info "${MUTED}Installed version: ${NC}$installed_version."

else

print_message info "${MUTED}Version ${NC}$specific_version${MUTED} already installed"

exit 0

fi

fi

}

unbuffered_sed() {

if echo | sed -u -e "" >/dev/null 2>&1; then

sed -nu "$@"

elif echo | sed -l -e "" >/dev/null 2>&1; then

sed -nl "$@"

else

local pad="$(printf "\n%512s" "")"

sed -ne "s/$/\\${pad}/" "$@"

fi

}

print_progress() {

local bytes="$1"

local length="$2"

[ "$length" -gt 0 ] || return 0

local width=50

local percent=$(( bytes * 100 / length ))

[ "$percent" -gt 100 ] && percent=100

local on=$(( percent * width / 100 ))

local off=$(( width - on ))

local filled=$(printf "%*s" "$on" "")

filled=${filled// /■}

local empty=$(printf "%*s" "$off" "")

empty=${empty// /･}

printf "\r${ORANGE}%s%s %3d%%${NC}" "$filled" "$empty" "$percent" >&4

}

download_with_progress() {

local url="$1"

local output="$2"

if [ -t 2 ]; then

exec 4>&2

else

exec 4>/dev/null

fi

local tmp_dir=${TMPDIR:-/tmp}

local basename="${tmp_dir}/opencode_install_$$"

local tracefile="${basename}.trace"

rm -f "$tracefile"

mkfifo "$tracefile"

# Hide cursor

printf "\033[?25l" >&4

trap "trap - RETURN; rm -f \"$tracefile\"; printf '\033[?25h' >&4; exec 4>&-" RETURN

(

curl --trace-ascii "$tracefile" -s -L -o "$output" "$url"

) &

local curl_pid=$!

unbuffered_sed \

-e 'y/ACDEGHLNORTV/acdeghlnortv/' \

-e '/^0000: content-length:/p' \

-e '/^<= recv data/p' \

"$tracefile" | \

{

local length=0

local bytes=0

while IFS=" " read -r -a line; do

[ "${#line[@]}" -lt 2 ] && continue

local tag="${line[0]} ${line[1]}"

if [ "$tag" = "0000: content-length:" ]; then

length="${line[2]}"

length=$(echo "$length" | tr -d '\r')

bytes=0

elif [ "$tag" = "<= recv" ]; then

local size="${line[3]}"

bytes=$(( bytes + size ))

if [ "$length" -gt 0 ]; then

print_progress "$bytes" "$length"

fi

fi

done

}

wait $curl_pid

local ret=$?

echo "" >&4

return $ret

}

download_and_install() {

print_message info "\n${MUTED}Installing ${NC}opencode ${MUTED}version: ${NC}$specific_version"

local tmp_dir="${TMPDIR:-/tmp}/opencode_install_$$"

mkdir -p "$tmp_dir"

if [[ "$os" == "windows" ]] || ! [ -t 2 ] || ! download_with_progress "$url" "$tmp_dir/$filename"; then

# Fallback to standard curl on Windows, non-TTY environments, or if custom progress fails

curl -# -L -o "$tmp_dir/$filename" "$url"

fi

if [ "$os" = "linux" ]; then

tar -xzf "$tmp_dir/$filename" -C "$tmp_dir"

else

unzip -q "$tmp_dir/$filename" -d "$tmp_dir"

fi

mv "$tmp_dir/opencode" "$INSTALL_DIR"

chmod 755 "${INSTALL_DIR}/opencode"

rm -rf "$tmp_dir"

}

install_from_binary() {

print_message info "\n${MUTED}Installing ${NC}opencode ${MUTED}from: ${NC}$binary_path"

cp "$binary_path" "${INSTALL_DIR}/opencode"

chmod 755 "${INSTALL_DIR}/opencode"

}

if [ -n "$binary_path" ]; then

install_from_binary

check_version

download_and_install

add_to_path() {

local config_file=$1

local command=$2

if grep -Fxq "$command" "$config_file"; then

print_message info "Command already exists in $config_file, skipping write."

elif [[ -w $config_file ]]; then

echo -e "\n# opencode" >> "$config_file"

echo "$command" >> "$config_file"

print_message info "${MUTED}Successfully added ${NC}opencode ${MUTED}to \$PATH in ${NC}$config_file"

else

print_message warning "Manually add the directory to $config_file (or similar):"

print_message info " $command"

fi

}

XDG_CONFIG_HOME=${XDG_CONFIG_HOME:-$HOME/.config}

current_shell=$(basename "$SHELL")

case $current_shell in

fish)

config_files="$HOME/.config/fish/config.fish"

;;

zsh)

config_files="${ZDOTDIR:-$HOME}/.zshrc ${ZDOTDIR:-$HOME}/.zshenv $XDG_CONFIG_HOME/zsh/.zshrc $XDG_CONFIG_HOME/zsh/.zshenv"

;;

bash)

config_files="$HOME/.bashrc $HOME/.bash_profile $HOME/.profile $XDG_CONFIG_HOME/bash/.bashrc $XDG_CONFIG_HOME/bash/.bash_profile"

;;

ash)

config_files="$HOME/.ashrc $HOME/.profile /etc/profile"

;;

sh)

config_files="$HOME/.ashrc $HOME/.profile /etc/profile"

;;

*)

# Default case if none of the above matches

config_files="$HOME/.bashrc $HOME/.bash_profile $XDG_CONFIG_HOME/bash/.bashrc $XDG_CONFIG_HOME/bash/.bash_profile"

;;

if [[ "$no_modify_path" != "true" ]]; then

config_file=""

for file in $config_files; do

if [[ -f $file ]]; then

config_file=$file

break

fi

done

if [[ -z $config_file ]]; then

print_message warning "No config file found for $current_shell. You may need to manually add to PATH:"

print_message info " export PATH=$INSTALL_DIR:\$PATH"

elif [[ ":$PATH:" != *":$INSTALL_DIR:"* ]]; then

case $current_shell in

fish)

add_to_path "$config_file" "fish_add_path $INSTALL_DIR"

;;

zsh)

add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"

;;

bash)

add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"

;;

ash)

add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"

;;

sh)

add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"

;;

*)

export PATH=$INSTALL_DIR:$PATH

print_message warning "Manually add the directory to $config_file (or similar):"

print_message info " export PATH=$INSTALL_DIR:\$PATH"

;;

esac

fi

if [ -n "${GITHUB_ACTIONS-}" ] && [ "${GITHUB_ACTIONS}" == "true" ]; then

echo "$INSTALL_DIR" >> $GITHUB_PATH

print_message info "Added $INSTALL_DIR to \$GITHUB_PATH"

echo -e ""

echo -e "${MUTED}  ${NC} ▄ "

echo -e "${MUTED}█▀▀█ █▀▀█ █▀▀█ █▀▀▄ ${NC}█▀▀▀ █▀▀█ █▀▀█ █▀▀█"

echo -e "${MUTED}█░░█ █░░█ █▀▀▀ █░░█ ${NC}█░░░ █░░█ █░░█ █▀▀▀"

echo -e "${MUTED}▀▀▀▀ █▀▀▀ ▀▀▀▀ ▀ ▀ ${NC}▀▀▀▀ ▀▀▀▀ ▀▀▀▀ ▀▀▀▀"

echo -e ""

echo -e ""

echo -e "${MUTED}OpenCode includes free models, to start:${NC}"

echo -e ""

echo -e "cd <project> ${MUTED}# Open directory${NC}"

echo -e "opencode ${MUTED}# Run command${NC}"

echo -e ""

echo -e "${MUTED}For more information visit ${NC}https://opencode.ai/docs"

echo -e ""

echo -e ""