feat(init): Only install core dependencies for Alpine

It is intended that Alpine containers have a small and reduced footprint
as they're typically geared towards a specific usecase

While having additional niceties in other containers can be beneficial
to the user experience, it hinders the purpose of using an Alpine based
container as the container is no longer shipping just the essentials

Signed-off-by: RJ Trujillo <[email protected]>

distrobox-init

@@ -347,20 +347,25 @@ fi
 
 # Check dependencies in a list, and install all if one is missing
 missing_packages=0
-dependencies="
+core_dependencies="
+	${shell_pkg}
+	bash
+	find
+	findmnt
+	mount
+	sudo
+	umount
+"
+additional_dependencies="
 	bc
 	bzip2
 	chpasswd
-	curl
 	diff
-	find
-	findmnt
 	gpg
 	hostname
 	less
 	lsof
 	man
-	mount
 	passwd
 	pigz
 	pinentry
@@ -369,18 +374,23 @@ dependencies="
 	rsync
 	script
 	ssh
-	sudo
 	time
 	tree
-	umount
 	unzip
 	useradd
 	wc
 	wget
 	xauth
 	zip
-	${shell_pkg}
 "
+
+# Exclude additional dependencies from Alpine
+if command -v apk; then
+	dependencies="${core_dependencies}"
+else
+	dependencies="${core_dependencies}""${additional_dependencies}"
+fi
+
 for dep in ${dependencies}; do
 	! command -v "${dep}" > /dev/null && missing_packages=1 && break
 done
@@ -411,58 +421,14 @@ if [ "${upgrade}" -ne 0 ] ||
 			${shell_pkg}
 			alpine-base
 			bash
-			bash-completion
-			bc
-			bzip2
+			busybox
 			coreutils
 			curl
-			diffutils
-			docs
 			findmnt
-			findutils
-			gcompat
-			gnupg
-			gpg
-			iproute2
-			iputils
-			keyutils
-			less
-			libc-utils
-			libcap
-			lsof
-			man-pages
-			mandoc
 			mount
 			musl-utils
-			ncurses
-			ncurses-terminfo
-			net-tools
-			openssh-client
-			pigz
-			pinentry
-			posix-libc-utils
-			procps
-			rsync
-			shadow
 			su-exec
-			sudo
-			tar
-			tcpdump
-			tree
-			tzdata
 			umount
-			unzip
-			util-linux
-			util-linux-misc
-			vte3
-			wget
-			which
-			xauth
-			xz
-			zip
-			$(apk search -q mesa-dri)
-			$(apk search -q mesa-vulkan)
-			vulkan-loader
 		"
 		install_pkg=""
 		for dep in ${deps}; do
@@ -1732,8 +1698,8 @@ export SHELL="\$(getent passwd "\${USER}" | cut -f 7 -d :)"
 # toolbx prompt: https://github.com/containers/toolbox/blob/main/profile.d/toolbox.sh#L47
 # this will ensure greater compatibility between the two implementations
 if [ -f /run/.toolboxenv ]; then
-    [ "\${BASH_VERSION:-}" != "" ] && PS1="📦[\u@\h \W]\$ "
-    [ "\${ZSH_VERSION:-}" != "" ] && PS1="📦[%n@%m]%~%# "
+	[ "\${BASH_VERSION:-}" != "" ] && PS1="📦[\u@\h \W]\$ "
+	[ "\${ZSH_VERSION:-}" != "" ] && PS1="📦[%n@%m]%~%# "
 fi
 
 # This will ensure we have a first-shell password setup for an user if needed.
@@ -1834,7 +1800,7 @@ if [ -d "/run/host/var/kerberos" ] &&
 	cat << EOF > /etc/krb5.conf.d/kcm_default_ccache
 # # To disable the KCM credential cache, comment out the following lines.
 [libdefaults]
-    default_ccache_name = KCM:
+	default_ccache_name = KCM:
 EOF
 fi
 
@@ -2199,8 +2165,8 @@ if [ -e /usr/lib/systemd/systemd ] || [ -e /lib/systemd/systemd ]; then
 	done" &
 
 	sh -c "	while true; do \
-	    systemctl is-system-running && break; \
-	    printf >&2 'waiting for systemd to come up...\n' && sleep 5; \
+		systemctl is-system-running && break; \
+		printf >&2 'waiting for systemd to come up...\n' && sleep 5; \
 	done; \
 	printf container_setup_done" &