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vscode-dev-containers
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vscode-dev-containers/script-library/common-alpine.sh

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#!/bin/ash
#-------------------------------------------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
#-------------------------------------------------------------------------------------------------------------
#
# Docs: https://github.com/microsoft/vscode-dev-containers/blob/main/script-library/docs/common.md
# Maintainer: The VS Code and Codespaces Teams
#
# Syntax: ./common-alpine.sh [install zsh flag] [username] [user UID] [user GID] [install Oh My Zsh! flag]
set -e
# Switch to bash right away
if [ -z "${BASH_SOURCE}" ] && [ "${SWITCHED_TO_BASH}" != "true" ]; then
apk add --no-cache bash
export SWITCHED_TO_BASH=true
exec /bin/bash "$0" "$@"
exit $?
fi
INSTALL_ZSH=${1:-"true"}
USERNAME=${2:-"automatic"}
USER_UID=${3:-"automatic"}
USER_GID=${4:-"automatic"}
INSTALL_OH_MYS=${5:-"true"}
MARKER_FILE="/usr/local/etc/vscode-dev-containers/common"
SCRIPT_DIR="$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)"
if [ "$(id -u)" -ne 0 ]; then
echo -e 'Script must be run as root. Use sudo, su, or add "USER root" to your Dockerfile before running this script.'
exit 1
fi
# Ensure that login shells get the correct path if the user updated the PATH using ENV.
rm -f /etc/profile.d/00-restore-env.sh
echo "export PATH=${PATH//$(sh -lc 'echo $PATH')/\$PATH}" > /etc/profile.d/00-restore-env.sh
chmod +x /etc/profile.d/00-restore-env.sh
# If in automatic mode, determine if a user already exists, if not use vscode
if [ "${USERNAME}" = "auto" ] || [ "${USERNAME}" = "automatic" ]; then
USERNAME=""
POSSIBLE_USERS=("vscode" "node" "codespace" "$(awk -v val=1000 -F ":" '$3==val{print $1}' /etc/passwd)")
for CURRENT_USER in ${POSSIBLE_USERS[@]}; do
if id -u ${CURRENT_USER} > /dev/null 2>&1; then
USERNAME=${CURRENT_USER}
break
fi
done
if [ "${USERNAME}" = "" ]; then
USERNAME=vscode
fi
elif [ "${USERNAME}" = "none" ]; then
USERNAME=root
USER_UID=0
USER_GID=0
fi
# Load markers to see which steps have already run
if [ -f "${MARKER_FILE}" ]; then
echo "Marker file found:"
cat "${MARKER_FILE}"
source "${MARKER_FILE}"
fi
# Install git, bash, common dependencies
if [ "${PACKAGES_ALREADY_INSTALLED}" != "true" ]; then
apk update
apk add --no-cache \
openssh-client \
gnupg \
procps \
lsof \
htop \
net-tools \
psmisc \
curl \
wget \
rsync \
ca-certificates \
unzip \
zip \
nano \
vim \
less \
jq \
libgcc \
libstdc++ \
krb5-libs \
libintl \
libssl1.1 \
lttng-ust \
tzdata \
userspace-rcu \
zlib \
sudo \
coreutils \
sed \
grep \
which \
ncdu \
shadow \
strace
# Install man pages - package name varies between 3.12 and earlier versions
if apk info man > /dev/null 2>&1; then
apk add --no-cache man man-pages
else
apk add --no-cache mandoc man-pages
fi
# Install git if not already installed (may be more recent than distro version)
if ! type git > /dev/null 2>&1; then
apk add --no-cache git
fi
PACKAGES_ALREADY_INSTALLED="true"
fi
# Create or update a non-root user to match UID/GID.
group_name="${USERNAME}"
if id -u ${USERNAME} > /dev/null 2>&1; then
# User exists, update if needed
if [ "${USER_GID}" != "automatic" ] && [ "$USER_GID" != "$(id -g $USERNAME)" ]; then
group_name="$(id -gn $USERNAME)"
groupmod --gid $USER_GID ${group_name}
usermod --gid $USER_GID $USERNAME
fi
if [ "${USER_UID}" != "automatic" ] && [ "$USER_UID" != "$(id -u $USERNAME)" ]; then
usermod --uid $USER_UID $USERNAME
fi
else
# Create user
if [ "${USER_GID}" = "automatic" ]; then
groupadd $USERNAME
else
groupadd --gid $USER_GID $USERNAME
fi
if [ "${USER_UID}" = "automatic" ]; then
useradd -s /bin/bash --gid $USERNAME -m $USERNAME
else
useradd -s /bin/bash -K MAIL_DIR=/dev/null --uid $USER_UID --gid $USERNAME -m $USERNAME
fi
fi
# Add sudo support for non-root user
if [ "${USERNAME}" != "root" ] && [ "${EXISTING_NON_ROOT_USER}" != "${USERNAME}" ]; then
echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME
chmod 0440 /etc/sudoers.d/$USERNAME
EXISTING_NON_ROOT_USER="${USERNAME}"
fi
# ** Shell customization section **
if [ "${USERNAME}" = "root" ]; then
user_rc_path="/root"
else
user_rc_path="/home/${USERNAME}"
fi
# .bashrc/.zshrc snippet
rc_snippet="$(cat << 'EOF'
if [ -z "${USER}" ]; then export USER=$(whoami); fi
if [[ "${PATH}" != *"$HOME/.local/bin"* ]]; then export PATH="${PATH}:$HOME/.local/bin"; fi
# Display optional first run image specific notice if configured and terminal is interactive
if [ -t 1 ] && [[ "${TERM_PROGRAM}" = "vscode" || "${TERM_PROGRAM}" = "codespaces" ]] && [ ! -f "$HOME/.config/vscode-dev-containers/first-run-notice-already-displayed" ]; then
if [ -f "/usr/local/etc/vscode-dev-containers/first-run-notice.txt" ]; then
cat "/usr/local/etc/vscode-dev-containers/first-run-notice.txt"
elif [ -f "/workspaces/.codespaces/shared/first-run-notice.txt" ]; then
cat "/workspaces/.codespaces/shared/first-run-notice.txt"
fi
mkdir -p "$HOME/.config/vscode-dev-containers"
# Mark first run notice as displayed after 10s to avoid problems with fast terminal refreshes hiding it
((sleep 10s; touch "$HOME/.config/vscode-dev-containers/first-run-notice-already-displayed") &)
fi
# Set the default git editor if not already set
if [ -z "$(git config --get core.editor)" ] && [ -z "${GIT_EDITOR}" ]; then
if [ "${TERM_PROGRAM}" = "vscode" ]; then
if [[ -n $(command -v code-insiders) && -z $(command -v code) ]]; then
export GIT_EDITOR="code-insiders --wait"
else
export GIT_EDITOR="code --wait"
fi
fi
fi
EOF
)"
# code shim, it fallbacks to code-insiders if code is not available
cat << 'EOF' > /usr/local/bin/code
#!/bin/sh
get_in_path_except_current() {
which -a "$1" | grep -A1 "$0" | grep -v "$0"
}
code="$(get_in_path_except_current code)"
if [ -n "$code" ]; then
exec "$code" "$@"
elif [ "$(command -v code-insiders)" ]; then
exec code-insiders "$@"
else
echo "code or code-insiders is not installed" >&2
exit 127
fi
EOF
chmod +x /usr/local/bin/code
# Codespaces bash and OMZ themes - partly inspired by https://github.com/ohmyzsh/ohmyzsh/blob/master/themes/robbyrussell.zsh-theme
codespaces_bash="$(cat \
<<'EOF'
# Codespaces bash prompt theme
__bash_prompt() {
local userpart='`export XIT=$? \
&& [ ! -z "${GITHUB_USER}" ] && echo -n "\[\033[0;32m\]@${GITHUB_USER} " || echo -n "\[\033[0;32m\]\u " \
&& [ "$XIT" -ne "0" ] && echo -n "\[\033[1;31m\]➜" || echo -n "\[\033[0m\]➜"`'
local gitbranch='`\
if [ "$(git config --get codespaces-theme.hide-status 2>/dev/null)" != 1 ]; then \
export BRANCH=$(git symbolic-ref --short HEAD 2>/dev/null || git rev-parse --short HEAD 2>/dev/null); \
if [ "${BRANCH}" != "" ]; then \
echo -n "\[\033[0;36m\](\[\033[1;31m\]${BRANCH}" \
&& if git ls-files --error-unmatch -m --directory --no-empty-directory -o --exclude-standard ":/*" > /dev/null 2>&1; then \
echo -n " \[\033[1;33m\]✗"; \
fi \
&& echo -n "\[\033[0;36m\]) "; \
fi; \
fi`'
local lightblue='\[\033[1;34m\]'
local removecolor='\[\033[0m\]'
PS1="${userpart} ${lightblue}\w ${gitbranch}${removecolor}\$ "
unset -f __bash_prompt
}
__bash_prompt
EOF
)"
codespaces_zsh="$(cat \
<<'EOF'
# Codespaces zsh prompt theme
__zsh_prompt() {
local prompt_username
if [ ! -z "${GITHUB_USER}" ]; then
prompt_username="@${GITHUB_USER}"
else
prompt_username="%n"
fi
PROMPT="%{$fg[green]%}${prompt_username} %(?:%{$reset_color%}➜ :%{$fg_bold[red]%}➜ )" # User/exit code arrow
PROMPT+='%{$fg_bold[blue]%}%(5~|%-1~/…/%3~|%4~)%{$reset_color%} ' # cwd
PROMPT+='$([ "$(git config --get codespaces-theme.hide-status 2>/dev/null)" != 1 ] && git_prompt_info)' # Git status
PROMPT+='%{$fg[white]%}$ %{$reset_color%}'
unset -f __zsh_prompt
}
ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg_bold[cyan]%}(%{$fg_bold[red]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} "
ZSH_THEME_GIT_PROMPT_DIRTY=" %{$fg_bold[yellow]%}✗%{$fg_bold[cyan]%})"
ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg_bold[cyan]%})"
__zsh_prompt
EOF
)"
# Add RC snippet and custom bash prompt
if [ "${RC_SNIPPET_ALREADY_ADDED}" != "true" ]; then
echo -e "${rc_snippet}\n${codespaces_bash}" >> "${user_rc_path}/.bashrc"
if [ "${USERNAME}" != "root" ]; then
echo -e "${rc_snippet}\n${codespaces_bash}" >> "/root/.bashrc"
fi
chown ${USERNAME}:${group_name} "${user_rc_path}/.bashrc"
RC_SNIPPET_ALREADY_ADDED="true"
fi
# Optionally install and configure zsh and Oh My Zsh!
if [ "${INSTALL_ZSH}" = "true" ]; then
if ! type zsh > /dev/null 2>&1; then
apk add zsh
fi
if [ "${ZSH_ALREADY_INSTALLED}" != "true" ]; then
echo "${rc_snippet}" >> /etc/zsh/zshrc
ZSH_ALREADY_INSTALLED="true"
fi
# Adapted, simplified inline Oh My Zsh! install steps that adds, defaults to a codespaces theme.
# See https://github.com/ohmyzsh/ohmyzsh/blob/master/tools/install.sh for official script.
oh_my_install_dir="${user_rc_path}/.oh-my-zsh"
if [ ! -d "${oh_my_install_dir}" ] && [ "${INSTALL_OH_MYS}" = "true" ]; then
template_path="${oh_my_install_dir}/templates/zshrc.zsh-template"
user_rc_file="${user_rc_path}/.zshrc"
umask g-w,o-w
mkdir -p ${oh_my_install_dir}
git clone --depth=1 \
-c core.eol=lf \
-c core.autocrlf=false \
-c fsck.zeroPaddedFilemode=ignore \
-c fetch.fsck.zeroPaddedFilemode=ignore \
-c receive.fsck.zeroPaddedFilemode=ignore \
"https://github.com/ohmyzsh/ohmyzsh" "${oh_my_install_dir}" 2>&1
echo -e "$(cat "${template_path}")\nDISABLE_AUTO_UPDATE=true\nDISABLE_UPDATE_PROMPT=true" > ${user_rc_file}
sed -i -e 's/ZSH_THEME=.*/ZSH_THEME="codespaces"/g' ${user_rc_file}
mkdir -p ${oh_my_install_dir}/custom/themes
echo "${codespaces_zsh}" > "${oh_my_install_dir}/custom/themes/codespaces.zsh-theme"
# Shrink git while still enabling updates
cd "${oh_my_install_dir}"
git repack -a -d -f --depth=1 --window=1
# Copy to non-root user if one is specified
if [ "${USERNAME}" != "root" ]; then
cp -rf "${user_rc_file}" "${oh_my_install_dir}" /root
chown -R ${USERNAME}:${group_name} "${user_rc_path}"
fi
fi
fi
# Persist image metadata info, script if meta.env found in same directory
meta_info_script="$(cat << 'EOF'
#!/bin/sh
. /usr/local/etc/vscode-dev-containers/meta.env
# Minimal output
if [ "$1" = "version" ] || [ "$1" = "image-version" ]; then
echo "${VERSION}"
exit 0
elif [ "$1" = "release" ]; then
echo "${GIT_REPOSITORY_RELEASE}"
exit 0
elif [ "$1" = "content" ] || [ "$1" = "content-url" ] || [ "$1" = "contents" ] || [ "$1" = "contents-url" ]; then
echo "${CONTENTS_URL}"
exit 0
fi
#Full output
echo
echo "Development container image information"
echo
if [ ! -z "${VERSION}" ]; then echo "- Image version: ${VERSION}"; fi
if [ ! -z "${DEFINITION_ID}" ]; then echo "- Definition ID: ${DEFINITION_ID}"; fi
if [ ! -z "${VARIANT}" ]; then echo "- Variant: ${VARIANT}"; fi
if [ ! -z "${GIT_REPOSITORY}" ]; then echo "- Source code repository: ${GIT_REPOSITORY}"; fi
if [ ! -z "${GIT_REPOSITORY_RELEASE}" ]; then echo "- Source code release/branch: ${GIT_REPOSITORY_RELEASE}"; fi
if [ ! -z "${BUILD_TIMESTAMP}" ]; then echo "- Timestamp: ${BUILD_TIMESTAMP}"; fi
if [ ! -z "${CONTENTS_URL}" ]; then echo && echo "More info: ${CONTENTS_URL}"; fi
echo
EOF
)"
if [ -f "${SCRIPT_DIR}/meta.env" ]; then
mkdir -p /usr/local/etc/vscode-dev-containers/
cp -f "${SCRIPT_DIR}/meta.env" /usr/local/etc/vscode-dev-containers/meta.env
echo "${meta_info_script}" > /usr/local/bin/devcontainer-info
chmod +x /usr/local/bin/devcontainer-info
fi
# Write marker file
mkdir -p "$(dirname "${MARKER_FILE}")"
echo -e "\
PACKAGES_ALREADY_INSTALLED=${PACKAGES_ALREADY_INSTALLED}\n\
EXISTING_NON_ROOT_USER=${EXISTING_NON_ROOT_USER}\n\
RC_SNIPPET_ALREADY_ADDED=${RC_SNIPPET_ALREADY_ADDED}\n\
ZSH_ALREADY_INSTALLED=${ZSH_ALREADY_INSTALLED}" > "${MARKER_FILE}"
echo "Done!"
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