Simplify user rootfs scripts.

- Simplify bootstrap, handle copy and run internally in rootfs script.
- create_rootfs only run one function, which is rootfs_main.
- create_image only run one function, which is rootfs_to_docker.
- bootstraping through one function
- allow replacing hostname, locales, and timezone through vars.sh

1 files changed, 137 insertions, 0 deletions

diff --git a/scripts/_bootstrap_script.sh b/scripts/_bootstrap_script.sh
new file mode 100755
index 0000000..341ab52
--- /dev/null
+++ b/scripts/_bootstrap_script.sh
@@ -0,0 +1,137 @@
+#!/bin/bash
+
+export LANG=C.UTF-8
+export HOSTNAME="arch-base"
+export BOOT_LANG=en_GB.UTF-8
+export TIMEZONE=UTC
+export PKG_REMOVED=()
+declare -a LOCALES=(
+	"en_GB.UTF-8 UTF-8"
+	"en_US.UTF-8 UTF-8"
+)
+
+strip_bin() {
+	find /usr/bin -type f \( -perm -0100 \) -print |
+		xargs file |
+		sed -n '/executable .*not stripped/s/: TAB .*//p' |
+		xargs -rt strip --strip-unneeded
+}
+
+strip_lib() {
+	find /usr/lib -type f \( -perm -0100 \) -print |
+		xargs file |
+		sed -n '/executable .*not stripped/s/: TAB .*//p' |
+		xargs -rt strip --strip-unneeded
+}
+
+bootstrap_clean_common() {
+	echo ""
+	echo "==> cleaning ..."
+	echo ">>> stripping binaries"
+	strip_bin
+	echo ">>> stripping libraries"
+	strip_lib
+
+	rm -rf /usr/share/doc/*
+	rm -rf /usr/share/licenses/*
+	rm -rf /usr/share/locale/*
+	rm -rf /usr/share/man/*
+	rm -rf /usr/share/info/*
+	rm -rf /var/cache/pacman/pkg/*
+	rm -rf /var/log/*
+	rm -f /vars.sh
+}
+
+bootstrap_hostname() {
+	echo ""
+	echo "==> set hostname to '${HOSTNAME}' ..."
+	echo ${HOSTNAME} > /etc/hostname
+}
+
+bootstrap_timezone() {
+	echo ""
+	echo "==> set timezone to '${TIMEZONE}'..."
+	cp /usr/share/zoneinfo/${TIMEZONE} /etc/localtime
+}
+
+bootstrap_locales() {
+	echo ""
+	echo "==> set locales ..."
+
+	echo "#" > /etc/locale.gen
+	for i in "${LOCALES[@]}"; do
+		echo "$i" >> /etc/locale.gen
+	done
+
+	echo "==> generate locale ..."
+	/usr/bin/locale-gen
+
+	echo "==> set locale preferences ..."
+	echo "LANG=${BOOT_LANG}"	>  "$rootfs"/etc/locale.conf
+	echo "LC_MESSAGES=C"		>> "$rootfs"/etc/locale.conf
+}
+
+bootstrap_remove_packages() {
+	echo ""
+	echo "==> remove unneeded packages ..."
+	for pkg in ${PKGS_REMOVED[@]}; do
+		echo "    removing $pkg"
+		pacman -Rdd --noconfirm $pkg
+	done
+}
+
+bootstrap_clean_base() {
+	echo ""
+	echo "==> cleaning base ..."
+	## Remove all charmaps except UTF-8.
+	find /usr/share/i18n/charmaps/ \! -name "UTF-8.gz" -delete
+	## Remove all locales except en_GB and en_US.
+	find /usr/share/i18n/locales/ \! -name "en_GB" \! -name "en_US" -delete
+	## Remove all terminfo excetp ansi,cygwin,linux,screen-256color,vt100,vt220,
+	## and xterm.
+	find /usr/share/terminfo/ \
+		\! -name ansi \
+		\! -name cygwin \
+		\! -name linux \
+		\! -name screen-256color \
+		\! -name vt100 \
+		\! -name vt220 \
+		\! -name xterm \
+		-delete
+	## Remove all unneeded doc.
+	rm -rf /usr/share/texinfo/*
+	rm -rf /usr/share/zoneinfo/*
+	rm -rf /usr/share/iana-etc/*
+	rm -rf /usr/share/gtk-doc/*
+	rm -rf /usr/share/readline/*
+
+	rm -r /usr/share/icu/*
+	rm -rf /usr/lib/python2.7/test
+	rm -rf /usr/share/perl5
+
+	echo "==> cleaning nodejs ..."
+	rm -r /usr/lib/node_modules/npm/doc/*
+	rm -r /usr/lib/node_modules/npm/html/doc/*
+	rm -r /usr/lib/node_modules/npm/man/*
+	find /usr/lib/node_modules -name man -type d -exec rm -rf '{}' \;
+	find /usr/lib/node_modules -name doc -type d -exec rm -rf '{}' \;
+	find /usr/lib/node_modules -name html -type d -exec rm -rf '{}' \;
+}
+
+bootstrap_clean_myself() {
+	echo ""
+	echo "==> bootstrap: cleaning my self"
+	rm -f /_bootstrap_script.sh
+	rm -f /_bootstrap_post.sh
+	rm -f /run_bootstrap.sh
+}
+
+bootstrap_post_main() {
+	echo "==> post bootstrap ..."
+	bootstrap_hostname
+	bootstrap_timezone
+	bootstrap_locales
+	bootstrap_clean_common
+	bootstrap_clean_base
+	bootstrap_clean_myself
+}