93 lines
2.9 KiB
Bash
Executable File
93 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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# =============================================== #
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# devc.sh v2.0; job79 #
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# Dev container enter script. Handles setting up #
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# different dev containers, resuming sessions and #
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# automatic container updates. #
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# =============================================== #
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set -eu
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log() { printf '\e[%sm%s\e[0m %s\n' "${3:-36}" "${2:-○}" "$1"; }
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arg() { echo -n " $@"; }
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# run_args returns the podman run arguments required for
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# starting a new container.
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default_args() {
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arg "--name $name"
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arg "--hostname $name"
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# Pull newer container image if available.
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arg "--pull=newer"
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# Use keep-id so the container user matches the host user.
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arg "--userns=keep-id"
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# Disable selinux labeling so unix sockets can be mounted
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# without problems.
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arg "--security-opt label=disable"
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# Mount the wayland socket. Required to get the system
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# clipboard (wl-copy) and gui applications working.
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[ -e "/run/user/$UID/wayland-0" ] && arg "-v /run/user/$UID/wayland-0:/run/user/1000/wayland-0"
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# Make the user home dir a volume so it survives container
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# restarts. Use copy to keep the homedir files from the image.
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arg "-v $name:/home/user:copy"
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# If there is custom configuration for the container, load
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# it here.
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config_file="$(dirname "$(realpath "$0")")/containers/$name/config.sh"
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[ -f "${config_file}" ] && source "${config_file}"
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}
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# param_args returns the podman run arguments based on the
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# arguments provided to this script.
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param_args() {
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while test $# -gt 0; do
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case "$1" in
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-gpu) # Enable gpu acceleration.
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arg "--device /dev/dri" ;;
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-host-spawn) # Enable spawning host commands from inside the container using host-spawn.
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arg "-v /run/user/$UID/bus:/tmp/bus"
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arg "-e HOST_HOME=$HOME" # Use to translate paths.
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;;
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*) # Use unknown arguments a podman arguments.
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arg "$1" ;;
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esac
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shift
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done
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}
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### MAIN ###
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# Get container registry from DEVC_REGISTRY env variable.
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if [ -n "${DEVC_REGISTRY:-}" ]; then
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registry="$DEVC_REGISTRY"
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else
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log "registry unknown; set the DEVC_REGISTRY environment variable" 'x' 31
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exit 1
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fi
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# Get the devcontainer name from the first argument. If not
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# provided, use the last used name when possible.
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if [[ $# -gt 0 ]] && [[ ${1:-} != -* ]]; then
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image="$1"
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echo "$image" >"$HOME/.local/share/devc-previous-container"
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shift
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elif [ -f "$HOME/.local/share/devc-previous-container" ]; then
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image=$(<"$HOME/.local/share/devc-previous-container")
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else
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log "no container name specified" 'x' 31
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exit 1
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fi
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name="${image%:*}"
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# Create a new container when the container is not running or
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# when any arguments are provided.
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if [ "$(podman container inspect "$name" -f {{.State.Running}} 2>&1)" != 'true' ] || [[ $# -gt 0 ]]; then
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log "starting devcontainer..."
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podman container rm -f -t 0 "$name" 1>/dev/null
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podman run -td $(default_args) $(param_args $@) "$registry/$name"
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fi
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podman exec -it "$name" bash -l
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