From 9e90ef29c9f7632636df57c20485a026f8f765db Mon Sep 17 00:00:00 2001
From: CyberLeo <cyberleo@cyberleo.net>
Date: Tue, 24 May 2011 05:01:29 -0500
Subject: [PATCH] j: support init for debian chroots using debootstrap

---
 init |  1 +
 j    | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 60 insertions(+), 3 deletions(-)
 create mode 120000 init

diff --git a/init b/init
new file mode 120000
index 0000000..0fe2fa5
--- /dev/null
+++ b/init
@@ -0,0 +1 @@
+j
\ No newline at end of file
diff --git a/j b/j
index 6e0ed6c..9a7d1d6 100755
--- a/j
+++ b/j
@@ -3,7 +3,7 @@
 # http://wiki.cyberleo.net/wiki/CyberLeo/COPYRIGHT
 
 # Need root beyond here
-[ "$(id -u)" -eq 0 ] || exec sudo env J_BASE=${J_BASE} J_NAME=${J_NAME} J_USER=${J_USER:-${USER}} "${0}" "${@}"
+[ "$(id -u)" -eq 0 ] || exec sudo env "J_ARCH=${J_ARCH}" "J_BASE=${J_BASE}" "J_NAME=${J_NAME}" "J_USER=${J_USER:-${USER}}" "${0}" "${@}"
 
 meh() { printf " \033[1;32m*\033[0m %s%s\n" "${jname:+${jname}: }" "${*}"; }
 omg() { printf " \033[1;33m*\033[0m %s%s\n" "${jname:+${jname}: }" "${*}"; }
@@ -32,6 +32,7 @@ EOF
 }
 
 cmd="$(basename "${0}")"
+jarch="${J_ARCH:-$(uname -m)}"
 jbase="${J_BASE:-$(realpath "$(dirname "${0}")/../")}"
 jname="${J_NAME:-$(basename "${1}")}" #"
 juser="${J_USER}"
@@ -46,10 +47,64 @@ jenv="
   USER=${USER}
 "
 
+# Debian-specific init: prepare Debian chroot with debootstrap
+j_init_debian() {
+  jdir="${1}"
+  suite="$(echo "${2:-squeeze}" | tr 'A-Z' 'a-z')"
+
+  # Validation
+  [ "$(which debootstrap 2>&-)" ] || pebkac "j_init_debian: debootstrap not found"
+  [ "${jdir}" ] || pebkac "j_init_debian: jdir must be specified"
+  [ ! -d "${jdir}" ] || pebkac "j_init_debian: jdir must not exist ('${jdir}')"
+  [ -d "$(dirname "${jdir}")" ] || pebkac "j_init_debian: parent of jdir must exist ('${jdir}')"
+
+  # Figure out arch
+  case "${jarch}" in
+  x86) arch=x86 ;;
+  amd64|x86_64|x64) arch=amd64 ;;
+  *) pebkac "Unsupported arch '${jarch}'" ;;
+  esac
+
+  cmd="debootstrap --arch=${arch} --include=curl,file,less,locales,sudo,build-essential,libreadline-dev,zlib1g-dev '${suite}' '${jdir}'"
+  echo "Executing ${cmd}"
+  eval "${cmd}"
+  
+  # Make sure locales are generated on first start
+  mkdir -p "${jdir}/etc/rcJ.d"
+  cat > "${jdir}/etc/rcJ.d/S00localegen" <<"EOF"
+#!/bin/sh
+/bin/sed -i '/en_US/s/^# //' /etc/locale.gen
+/usr/sbin/locale-gen
+/bin/rm -f "${0}"
+EOF
+  chmod 755 "${jdir}/etc/rcJ.d/S00localegen"
+}
+
+# Gentoo-specific init: prepare Gentoo chroot with stage3+portage tarballs
+j_init_gentoo() {
+  arch="$(uname -m)"
+  base="http://distfiles.gentoo.org/releases/${arch}/autobuilds"
+  pointer="${base}/latest-stage3.txt"
+  # Fetch stage3
+  # Fetch portage
+  # Validate signatures
+  # Unpack stage3
+  # Unpack portage
+}
+
 # Create a new chroot, somehow
 j_init() {
-  # Either a debian chroot with debootstrap or a gentoo chroot with stage3 + portage tarballs
-  DEBOOTSTRAP_DIR="$(base)/debootstrap" "${DEBOOTSTRAP_DIR}/debootstrap" --arch=amd64 squeeze "${jdir}"
+  # Make sure this does NOT exist
+  jname="${1:-jname}"
+  dist="$(echo "${2:-debian}" | tr 'A-Z' 'a-z')"
+  jdir="${jbase}/${jname}"
+  [ -d "${jdir}" ] && pebkac "j_init: ${jname} already exists"
+  shift 2
+  case "${dist}" in
+  debian) j_init_debian "${jdir}" "${@}" ;;
+  gentoo) j_init_gentoo "${jdir}" "${@}" ;;
+  *) pebkac "Unsupported distro '${dist}'" ;;
+  esac
 }
 
 # Figure out and set chroot parameters; needed for all functions that follow
@@ -177,6 +232,7 @@ j_stop() {
 }
 
 case "${cmd}" in
+init|create) j_init "${jname}" "${@}" ;;
 ls|list) j_ls ;;
 status) j_status "${jname}" "${@}" ;;
 start) j_start "${jname}" ;;
-- 
2.42.0