1 files changed, 124 insertions, 0 deletions
diff --git a/build-iso b/build-iso
new file mode 100755
index 0000000..7c6ac33
--- /dev/null
+++ b/build-iso
@@ -0,0 +1,124 @@
+#!/bin/bash
+
+# parameters and default values
+CONFIG="releng"
+ARCH="i686"
+DATE=$(date +%Y.%m.%d)
+ISO="archlinux32-${DATE}-${ARCH}.iso"
+OUTPUT_DIR="${HOME}/archisos"
+
+# prerequisites:
+# - https://gitlab.archlinux.org/archlinux/archiso
+# - mkinitcpio-archiso32, archiso32 installed in /usr/local
+# - pacman-mirrorlist32 for /etc/pacman.d/mirrorlist32
+# - arch-install-scripts awk dosfstools e2fsprogs findutils gzip 
+#   libarchive libisoburn mtools openssl pacman sed squashfs-tools
+
+usage() {
+  >&2 echo ""
+  >&2 echo "build-iso: builds ISOs for Archlinux32"
+  >&2 echo ""
+  >&2 echo "possible options:"
+  >&2 echo "  -h|--help:       show this help and exit."
+  >&2 echo "  --config         mkarchiso configuration to use, default is '$CONFIG'."
+  >&2 echo "  --arch           architecture to build ISO for, default is '$ARCH'."
+  >&2 echo "  --outputdir      where to write the isos, default is '~/archisos."
+  >&2 echo "  --iso            name of the resulting ISO, default is '$ISO'."
+  >&2 echo "  --no-cleanup     do not clean up tmpdir after run, for debugging."
+  [ -z "$1" ] && exit 1 || exit "$1"
+}
+
+# fail on first error
+set -e
+
+# cleanup hook
+tmp_dir="$(mktemp -d)"
+cleanup() {
+  if [ "${no_cleanup}" = 0 ]; then  
+    if mountpoint -q "${tmp_dir}"; then
+      sudo umount "${tmp_dir}"
+    fi
+    rm -rf --one-file-system "${tmp_dir}"
+  fi
+}
+trap cleanup EXIT
+
+eval set -- "$(
+  getopt -o h \
+  --long help \
+  --long config: \
+  --long arch: \
+  --long output-dir: \
+  --long iso: \
+  --long no-cleanup \
+  -n "$(basename "$0")" -- "$@" || \
+  echo usage
+)"
+
+config="$CONFIG"
+arch="$ARCH"
+iso="$ISO"
+no_cleanup=0
+output_dir="${OUTPUT_DIR}"
+
+while [ $# -gt 0 ]; do
+  case "$1" in
+    '--config')
+      shift
+      config="$1"
+      if [ ! -s "/usr/local/share/archiso/configs/${config}/profiledef.sh" ]; then
+	    printf "'${config}' is not a valid mkarchiso profile in usr/local/share/archiso/configs" >&2
+        usage
+      fi
+      ;;
+    '--arch')
+      shift
+      arch="$1"
+      ;;
+    '--iso')
+      shift
+      iso="$1"
+      ;;
+    '--output-dir')
+      shift
+      output_dir="$1"
+      ;;
+    '--no-cleanup')
+      no_cleanup=1
+      ;;
+    '--help'|'-h')
+      usage 0
+    ;;
+    '--')
+      shift
+      break
+    ;;
+    *)
+      >&2 printf 'Whoops, option "%s" is not yet implemented!\n' "$1" >&2
+      exit 42
+    ;;
+  esac
+  shift
+done
+
+if [ $# -gt 0 ]; then
+  >&2 echo 'Too many arguments.' >&2
+  exit 2
+fi
+
+echo "parameters for ISO are:"
+echo "mkarchiso config: $config"
+echo "architecture: $arch"
+echo "destination ISO file: $iso"
+sleep 5
+
+echo "building $ISO..."
+tmp_dir=$(mktemp -d)
+trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
+arch="${arch}" setarch i686 mkarchiso -L "ARCH32_$DATE" -o "${output_dir}" -w "${tmp_dir}" -v "/usr/local/share/archiso/configs/${config}"
+
+if [ "${no_cleanup}" -eq 1 ]; then
+  echo "no-cleanup specified, find your temporary data in ${tmp_dir}.."
+fi
+
+echo "done"