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dvm.sh
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#!/usr/bin/env bash
# Deno Version Manager
# Copyright (C) 2020 ~ 2025, Chen Su and all contributors.
# A lightweight, and powerful Deno version manager for MacOS, Linux, WSL, and
# Windows with Bash.
{ # Ensure the integrality of this script
export DVM_VERSION="v0.10.0"
######################
## Helper Functions ##
######################
{
################
## Environment ##
################
{
# Check aliases directory, and try to create it if is not existed.
dvm_check_alias_dir() {
if [ ! -d "$DVM_DIR/aliases" ]
then
mkdir -p "$DVM_DIR/aliases"
fi
}
# Gets user profile file path by the shell.
dvm_get_profile_file() {
case "${SHELL##*/}" in
"bash")
DVM_PROFILE_FILE="$HOME/.bashrc"
;;
"zsh")
DVM_PROFILE_FILE="$HOME/.zshrc"
;;
*)
DVM_PROFILE_FILE="$HOME/.profile"
;;
esac
dvm_debug "profile file: $DVM_PROFILE_FILE"
}
# Check whether a command exists or not.
# Parameters:
# $1: command to check.
dvm_has() {
command -v "$1" > /dev/null
}
# Set the environment variables to the default values.
dvm_set_default_env() {
# set default dvm directory
DVM_DIR=${DVM_DIR:-$HOME/.dvm}
# Set modes
DVM_COLOR_MODE=true
DVM_QUIET_MODE=false
DVM_VERBOSE_MODE=false
# Set global variables to default values
DVM_DENO_VERSION=""
DVM_INSTALL_MODE="binary"
DVM_INSTALL_REGISTRY=""
DVM_INSTALL_SKIP_VALIDATION=false
DVM_INSTALL_SKIP_CACHE=false
DVM_INSTALL_SHA256SUM=false
DVM_LATEST_VERSION=""
DVM_PROFILE_FILE=""
DVM_REMOTE_VERSIONS=""
DVM_REQUEST_RESPONSE=""
DVM_SOURCE=""
DVM_TARGET_NAME=""
DVM_TARGET_TYPE=""
DVM_TARGET_VERSION=""
}
# Remove Deno path from the global environment variable `PATH` that added
# by DVM.
dvm_strip_path() {
echo "$PATH" | tr ":" "\n" | grep -v "$DVM_DIR" | tr "\n" ":"
}
}
######################
## Handle Parameter ##
######################
{
# Check all parameters and try to match available options.
dvm_parse_options() {
while [ "$#" -gt "0" ]
do
case "$1" in
"-q"|"--quiet")
DVM_QUIET_MODE=true
;;
"--color")
DVM_COLOR_MODE=true
;;
"--no-color")
DVM_COLOR_MODE=false
;;
"--verbose")
DVM_VERBOSE_MODE=true
;;
*)
;;
esac
shift
done
}
}
###########
## Input ##
###########
{
# Print a prompt message, and get the confirm (yes or no) from the user
# input.
# Parameters:
# $1: the prompt message.
dvm_confirm_with_prompt() {
local confirm
local prompt
if [ "$#" = 0 ]
then
return
fi
prompt="$1"
echo -n "$prompt (y/n): "
while true
do
read -r confirm
case "$confirm" in
[yY]*)
return 0
;;
[nN]*)
return 1
;;
*)
;;
esac
echo -n "Please type 'y' or 'n': "
done
}
}
###################
## Network Tools ##
###################
{
# Download file from the specific url, and save the file to the specific
# path.
# Parameters:
# - $1: downloading url.
# - $2: the path of downloaded file.
dvm_download_file() {
local url
local file
local cmd
local downloading_file
url="$1"
file="$2"
downloading_file="$file.downloading"
dvm_debug "downloading url: $url"
dvm_debug "download destination file: $file"
if dvm_has curl
then
cmd="curl -LJ $url -o $downloading_file"
if [ "$DVM_QUIET_MODE" = true ]
then
cmd="$cmd -s"
elif [ "$DVM_VERBOSE_MODE" = true ]
then
cmd="$cmd -v"
fi
else
dvm_print_error "curl is required."
dvm_failure
return
fi
dvm_debug "download file command: $cmd"
if ! eval "$cmd"
then
# remove failed download file
rm -f "$downloading_file"
dvm_failure
return
fi
# rename the downloading file to the target file
mv "$downloading_file" "$file"
}
# Send a GET request to the specific url, and save response to the
# `DVM_REQUEST_RESPONSE` variable.
# Parameters:
# - $1: request url.
# - $2...: options for curl.
dvm_request() {
local url
# Clear response content.
DVM_REQUEST_RESPONSE=""
if ! dvm_has curl
then
dvm_print_error "curl is required"
dvm_failure
return
fi
url="$1"
shift
cmd="curl -s '$url' $*"
if [ "$DVM_VERBOSE_MODE" = true ]
then
cmd="$cmd -v"
fi
if [ -n "$GITHUB_API_TOKEN" ] && [[ "$url" = "https://api.github.com/"* ]]
then
cmd="$cmd -H \"Authorization: Bearer $GITHUB_API_TOKEN\""
fi
dvm_debug "request url: $url"
dvm_debug "request command: $cmd"
if ! DVM_REQUEST_RESPONSE=$(eval "$cmd")
then
dvm_failure
return
fi
dvm_debug "request response: $DVM_REQUEST_RESPONSE"
}
}
############
## Output ##
############
{
# Print debug message in the verbose mode.
# Parameters:
# - $1...: the message to print.
dvm_debug() {
if [ "$DVM_VERBOSE_MODE" = true ]
then
echo -e "[DEBUG]" "$@"
fi
}
# Print messages without quiet mode.
# Parameters:
# - $1...: the message to print.
dvm_print() {
if [ "$DVM_QUIET_MODE" = true ]
then
return
fi
echo -e "$@"
}
# Print error message with red color text.
# Parameters:
# $1...: the message to print.
dvm_print_error() {
dvm_print_with_color "31" "[ERR]" "$@"
}
# Print warning message with yellow color text.
# Parameters:
# $1...: the message to print.
dvm_print_warning() {
dvm_print_with_color "33" "[WARN]" "$@"
}
# Print message with the specific color.
# Parameters:
# - $1: the color code.
# - $2...: the message to print.
dvm_print_with_color() {
local color="$1"
shift
if [ "$DVM_COLOR_MODE" = true ] && [ -n "$color" ]
then
dvm_print "\x1b[${color}m$*\x1b[0m"
else
dvm_print "$@"
fi
}
}
###################
## Return Status ##
###################
{
# Set return status to true.
dvm_success() {
# execute true to set as success
true
}
# Set return status to false.
dvm_failure() {
# execute false to set as fail
false
}
}
####################
## Version Handle ##
####################
{
# Compare two version number.
# Parameters:
# $1, $2: the version number to compare.
dvm_compare_version() {
test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$2"
}
# Try to getting the active Deno version, and set it to `DVM_DENO_VERSION`
# variable.
dvm_get_current_version() {
local deno_path
local deno_dir
if ! deno_path=$(which deno 2>/dev/null)
then
return
fi
if [[ "$deno_path" != "$DVM_DIR/versions/"* ]]
then
return
fi
deno_dir=${deno_path%/deno}
DVM_DENO_VERSION=${deno_dir##*/}
dvm_debug "active deno version: $DVM_DENO_VERSION"
}
# Try to get a Deno version from the parameters or the .dvmrc file (the
# current directory or the user home directory).
# Parameters:
# $1...: the Deno version.
dvm_get_version() {
local result
local prefix
if ! dvm_get_version_by_param "$@"
then
dvm_get_version_from_dvmrc
fi
if [ -z "$DVM_TARGET_VERSION" ]
then
return
fi
if [[ "$DVM_TARGET_VERSION" != "v"* ]]
then
DVM_TARGET_VERSION="v$DVM_TARGET_VERSION"
fi
result=$(echo "$DVM_TARGET_VERSION" | grep -E "^v[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+")
if [ -n "$result" ]
then
return
fi
dvm_debug "$DVM_TARGET_VERSION is a prefix"
dvm_debug "try to get the latest version with the prefix $DVM_TARGET_VERSION"
prefix="$DVM_TARGET_VERSION"\.
DVM_TARGET_VERSION=""
for version in "$DVM_DIR/versions"/*
do
if [[ "$version" == *"$prefix"* ]]
then
result=${version##*/}
dvm_debug "version $result matched to the prefix $DVM_TARGET_VERSION"
fi
done
if [ -z "$result" ]
then
dvm_print_error "no version found with the prefix $DVM_TARGET_VERSION"
dvm_failure
else
dvm_debug "found the latest version $result with the prefix $DVM_TARGET_VERSION"
DVM_TARGET_VERSION="$result"
fi
}
# Try to get a valid and installed Deno version from the parameters.
# Parameters:
# $1...: the Deno version.
dvm_get_version_by_param() {
DVM_TARGET_VERSION=""
while [[ "$1" == "-"* ]]
do
shift
done
if [ "$#" = "0" ]
then
return 1
fi
dvm_debug "try to get version by param: $1"
if [ -f "$DVM_DIR/aliases/$1" ]
then
DVM_TARGET_VERSION=$(head -n 1 "$DVM_DIR/aliases/$1")
if [ ! -f "$DVM_DIR/versions/$DVM_TARGET_VERSION/deno" ]
then
DVM_TARGET_VERSION="$1"
fi
else
DVM_TARGET_VERSION="$1"
fi
}
# Try to read version from .dvmrc file in the current working directory or
# the user home directory.
dvm_get_version_from_dvmrc() {
if dvm_read_dvmrc_file "$PWD" ".dvmrc" || dvm_read_dvmrc_file "$PWD" ".deno-version"
then
return 0
fi
if [ "$PWD" != "$HOME" ]
then
if dvm_read_dvmrc_file "$HOME" ".dvmrc" || dvm_read_dvmrc_file "$HOME" ".deno-version"
then
return 0
fi
fi
return 1
}
# Read .dvmrc or .deno-version file from the specified path, and set it to
# `DVM_TARGET_VERSION` variable if the file is not empty.
# Parameters:
# - $1: path directory
# - $2: file name
dvm_read_dvmrc_file() {
local version
local file_dir="$1"
local filename="$2"
local file="$file_dir/$filename"
if [ -f "$file" ]
then
dvm_debug "$file found"
version=$(head -n 1 "$file")
else
dvm_debug "no $filename found in $file_dir"
return 1
fi
if [ -n "$version" ]
then
dvm_print "Found '$file' with version $version"
DVM_TARGET_VERSION="$version"
return 0
else
dvm_debug "empty $filename file $file_dir"
return 1
fi
}
}
}
###################
## Command alias ##
###################
{
# Set an alias to the specific Deno version, and it will overwrite if the
# alias was created.
# Parameters:
# $1: the alias name to be set.
# $2: the Deno version to alias.
dvm_set_alias() {
local alias_name
local version
dvm_check_alias_dir
while [ "$#" -gt "0" ]
do
case "$1" in
"-"*)
;;
*)
if [ -z "$alias_name" ]
then
alias_name="$1"
elif [ -z "$version" ]
then
version="$1"
fi
esac
shift
done
if [ -z "$alias_name" ] || [ -z "$version" ]
then
dvm_print_help
dvm_failure
return
fi
if [ ! -f "$DVM_DIR/versions/$version/deno" ]
then
dvm_print_error "deno $version is not installed."
dvm_failure
return
fi
echo "$version" > "$DVM_DIR/aliases/$alias_name"
dvm_print "$alias_name -> $version"
}
}
###################
## Command clean ##
###################
{
# Remove version and download caches.
dvm_clean_caches() {
if [ -d "$DVM_DIR/cache" ]
then
rm -rf "$DVM_DIR/cache"
fi
dvm_clean_download_cache
}
# Clean downloading caches in the disk.
dvm_clean_download_cache() {
if [ ! -d "$DVM_DIR/download" ]
then
return
fi
if [ -z "$(ls -A "$DVM_DIR/download")" ]
then
return
fi
for cache_path in "$DVM_DIR/download"/*
do
if [ ! -d "$cache_path" ]
then
continue
fi
rm -rf "$cache_path"
done
}
}
#####################
## Command current ##
#####################
{
# Gets the current Deno version and prints. It will print `system (vX.X.X)`
# if Deno doesn't install by DVM.
dvm_print_current_version() {
local deno_version
if ! dvm_has deno
then
dvm_print "none"
return
fi
dvm_get_current_version
if [ -n "$DVM_DENO_VERSION" ]
then
dvm_print "$DVM_DENO_VERSION"
else
deno_version=$(deno --version | grep "deno" | cut -d " " -f 2)
dvm_print "system (v$deno_version)"
fi
}
}
########################
## Command deactivate ##
########################
{
# Deactivate the active Deno version that added into the global environment
# variable `PATH` by DVM
dvm_deactivate() {
local path_without_dvm
dvm_get_current_version
if [ -z "$DVM_DENO_VERSION" ]
then
dvm_success
return
fi
path_without_dvm=$(dvm_strip_path)
export PATH="$path_without_dvm"
dvm_print "Deno has been deactivated, you can run \"dvm use $DVM_DENO_VERSION\" to restore it."
unset DVM_DENO_VERSION
}
}
####################
## Command doctor ##
####################
{
# Scan the installed versions, and try to finding the invalid versions (the
# versions from path and Deno `-v` option are not same). It'll try to fix the
# invalid versions if it run in the `fix` mode.
# Parameters:
# $1: the mode of the doctor command.
dvm_scan_and_fix_versions() {
local mode
local raw_output
local invalid_message
local corrupted_message
local version
local deno_version
mode="$1"
if [ ! -d "$DVM_DIR/versions" ]
then
return
fi
if [ -z "$(ls -A "$DVM_DIR/versions")" ]
then
return
fi
for version_path in "$DVM_DIR/versions/"*
do
if [ ! -f "$version_path/deno" ]
then
continue
fi
version=${version_path##*/}
raw_output=$("$version_path/deno" --version 2>/dev/null)
if [ -z "$raw_output" ]
then
corrupted_message="$corrupted_message$version\n"
if [ "$mode" = "fix" ]
then
rm -rf "$version_path"
fi
else
deno_version=$(echo "$raw_output" | grep deno | cut -d " " -f 2)
if [ "$version" != "v$deno_version" ]
then
invalid_message="$invalid_message$version -> v$deno_version\n"
if [ "$mode" = "fix" ]
then
mkdir -p "$DVM_DIR/doctor_temp"
mv -f "$version_path" "$DVM_DIR/doctor_temp/v$deno_version"
fi
fi
fi
done
if [ "$mode" = "fix" ]
then
dvm_fix_invalid_versions
else
dvm_print_doctor_message "$invalid_message" "$corrupted_message"
fi
}
# Try to moving the Deno files to the correct path, and remove it if the
# version was existed.
dvm_fix_invalid_versions() {
local version
if [ ! -d "$DVM_DIR/doctor_temp" ]
then
return
fi
for version_path in "$DVM_DIR/doctor_temp/"*
do
version=${version_path##*/}
if [ -d "$DVM_DIR/versions/$version" ]
then
rm -rf "$version_path"
else
mv "$version_path" "$DVM_DIR/versions/$version"
fi
done
rmdir "$DVM_DIR/doctor_temp"
dvm_print "Invalid version(s) has been fixed."
}
# Print the invalid (versions from file and path are not same) and the
# corrupted (unable to run) versions.
# Parameters:
# $1: invalid versions list.
# $2: corrupted versions list.
dvm_print_doctor_message() {
local invalid_message
local corrupted_message
invalid_message="$1"
corrupted_message="$2"
if [ -z "$invalid_message" ] && [ -z "$corrupted_message" ]
then
dvm_print "Everything is ok."
return
fi
if [ -n "$invalid_message" ]
then
dvm_print "Invalid versions:"
dvm_print "$invalid_message"
fi
if [ -n "$corrupted_message" ]
then
dvm_print "Corrupted versions:"
dvm_print "$corrupted_message"
fi
dvm_print "You can run \"dvm doctor --fix\" to fix these errors."
}
}
##################
## Command help ##
##################
{
# Print help messages.
dvm_print_help() {
dvm_print
dvm_print "Deno Version Manager"
dvm_print
dvm_print "Usage:"
dvm_print " dvm install [version | prefix] Download and install by version or the prefix. Install latest or use .dvmrc file if version is omitted."
dvm_print " --registry=<registry> Download and install deno with the specified registry."
dvm_print " --skip-validation Skip version validation before download."
dvm_print " --skip-download-cache Don't use downloaded cache file."
dvm_print " dvm uninstall [name|version] Uninstall a specified version."
dvm_print " dvm use [name|version] Use the specified version that passed by argument or read from .dvmrc."
dvm_print " dvm run <name|version> [args] Run deno on the specified version with arguments."
dvm_print " dvm alias <name> <version> Set an alias name to specified version."
dvm_print " dvm unalias <name|version> Delete the specified alias name."
dvm_print " dvm current Display the current version of Deno."
dvm_print " dvm ls List all installed versions."
dvm_print " dvm ls-remote List all remote versions."
dvm_print " dvm which [current|name|version] Display the path of installed version."
dvm_print " dvm clean Remove all downloaded packages and cached versions."
dvm_print " dvm deactivate Deactivate Deno on current shell."
dvm_print " dvm doctor Scan installed versions and find invalid / corrupted versions."
dvm_print " --fix Scan and fix all invalid / corrupted versions."
dvm_print " dvm upgrade Upgrade dvm itself."
dvm_print " dvm purge Remove dvm from your computer."
dvm_print " dvm help Show this message."
dvm_print
dvm_print "Options:"
dvm_print " -q, --quiet Make outputs more quiet."
dvm_print " --color Print colorful messages."
dvm_print " --no-color Print messages without color."
dvm_print " --verbose Run in verbose mode, it'll print debug messages."
dvm_print
dvm_print "Note:"
dvm_print " <param> is required parameter, [param] is optional parameter."
dvm_print
dvm_print "Examples:"
dvm_print " dvm install v1.0.0"
dvm_print " dvm uninstall v0.42.0"
dvm_print " dvm use v1.0.0"
dvm_print " dvm alias default v1.0.0"
dvm_print " dvm run v1.0.0 app.ts"
dvm_print
}
}
#####################
## Command install ##
#####################
{
# Try to build the binary file of Deno with the specified version, and move
# the build target file to the versions directory.
# Parameters:
# - $1: The Deno version to building.
dvm_build_deno() {
local version
version="$1"
old_dir=$(pwd)
cd "$DVM_DIR/deno_code" || return
git reset --hard HEAD
if ! git checkout "$version" --recurse-submodules
then
dvm_failure
return
fi
cargo clean
if ! cargo build --release
then
dvm_print_error "failed to build deno"
cd "$old_dir" || return
dvm_failure
return
fi
if ! dvm_validate_build_target "$version"
then
cd "$old_dir" || return
dvm_failure
return
elif ! dvm_copy_build_target_to_versions_dir "$version"
then
cd "$old_dir" || return
dvm_failure
return
else
cargo clean
cd "$old_dir" || return
fi
}
# Check the dependencies for building Deno from the source code.
dvm_check_build_dependencies() {
for command in git rustc cargo cc cmake
do
if ! dvm_has "$command"
then
dvm_print_error "$command is required"
dvm_failure
return
fi
done
}
# Try to check the local clone of the source code, and fetch the latest data
# if the local clone is valid. It will delete the source code directory and
# clone it again later if the directory is not the repo of the Deno source
# code.
dvm_check_local_deno_clone() {
local old_dir
old_dir=$(pwd)
cd "$DVM_DIR/deno_code" || return
ret=$(git remote -v | grep "deno.git")
if [ -z "$ret" ]
then
dvm_print_warning "The local clone of Deno source is invalid, trying to re-clone..."
rm -rf "$DVM_DIR/deno_code"
cd "$old_dir" || return
dvm_failure
else
# update repo
git fetch
cd "$old_dir" || return
fi
}
# Clone the source code of Deno into the local directory, and update the
# local clone if it was cloned.
dvm_clone_deno_source() {
if [ -d "$DVM_DIR/deno_code" ]
then
if dvm_check_local_deno_clone
then
return
fi
fi
git clone --recurse-submodules https://github.com/denoland/deno.git "$DVM_DIR/deno_code"
}
# Move the build output file to the versions file.
# Parameters:
# - $1: The Deno version to install.
dvm_copy_build_target_to_versions_dir() {
local version
version="$1"
if ! [ -d "$DVM_DIR/versions/$version" ]
then
mkdir -p "$DVM_DIR/versions/$version"
fi
cp "$DVM_DIR/deno_code/target/release/deno" "$DVM_DIR/versions/$version"
}
# Download Deno with the specific version from GitHub or the specific
# registry (specify by `DVM_INSTALL_REGISTRY` variable). It will download
# Deno to the cache directory, and move it to versions directory after
# completed.
# Parameters:
# - $1: the Deno version to download.
dvm_download_deno() {
local version
local url
local temp_file
local registry
version="$1"
if [ ! -d "$DVM_DIR/download/$version" ]
then
mkdir -p "$DVM_DIR/download/$version"
fi
if [ -z "$DVM_INSTALL_REGISTRY" ]
then
if ! [[ "$version" < "v1.0.1" ]] || [[ "$version" = "v1.0.0" ]]
then
registry="https://dl.deno.land/release"
else
registry="https://github.com/denoland/deno/releases/download"
fi
else
registry="$DVM_INSTALL_REGISTRY"
fi
dvm_debug "registry url: $registry"
url="$registry/$version/$DVM_TARGET_NAME"
temp_file="$DVM_DIR/download/$version/$DVM_TARGET_NAME"
if dvm_download_file "$url" "$temp_file"
then
if dvm_validate_download_file "$version" "$url"
then
return
fi
fi
if [ -f "$temp_file" ]
then
rm "$temp_file"
fi
dvm_print_error "failed to download deno $version."
dvm_failure
}
# Extract the Deno compressed file, and add execute permission to the binary
# file.
dvm_extract_file() {
local target_dir