installer: Add installer backend frontend

2 files changed, 80 insertions, 0 deletions

diff --git a/src/installer.sh b/src/installer.sh
new file mode 100644
index 0000000..76c1c42
--- /dev/null
+++ b/src/installer.sh
@@ -0,0 +1,79 @@
+# Installer-related functions
+#
+# Copyright (C) 2015, 2021  Patrick McDermott
+#
+# This file is part of the ProteanOS Development Kit.
+#
+# The ProteanOS Development Kit is free software: you can redistribute
+# it and/or modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# The ProteanOS Development Kit is distributed in the hope that it
+# will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with the ProteanOS Development Kit.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+_installers=' '
+
+register_installer()
+{
+	local installer="${1}"
+	shift 1
+
+	_installers="${_installers}${installer} "
+	return 0
+}
+
+is_installer()
+{
+	local inst="${1}"
+	shift 1
+
+	case "${_installers}" in *" ${inst} "*) return 0;; *) return 1;; esac
+}
+
+run_installer()
+{
+	local mirror="${1}"
+	local suite="${2}"
+	local arch="${3}"
+	local plat="${4}"
+	local root="${5}"
+	local foreign="${6}"
+	shift 6
+	local inst=
+
+	if [ x"${arch}" = x'' ]; then
+		arch="$(profile_detect_arch)"
+	fi
+	if [ x"${plat}" = x'' ]; then
+		plat="$(profile_default_plat)"
+	fi
+	if [ x"${mirror}" = x'' ]; then
+		mirror="$(profile_select_mirror)"
+	fi
+	profile_prepare_install "${mirror}" "${suite}"
+
+	if ! profile_validate_archplat "${arch}" "${plat}"; then
+		error "$(get_msg 'install_bad_archplat')" "${arch}" "${plat}"
+		return 1
+	fi
+
+	info "$(get_msg 'install_selected_arch')" "${arch}"
+	info "$(get_msg 'install_selected_plat')" "${plat}"
+	info "$(get_msg 'install_selected_mirror')" "${mirror}"
+
+	inst="$(profile_installer_type "${arch}" "${plat}")"
+	if ! is_installer "${inst}"; then
+		error "$(get_msg 'installer_invalid')" "${inst}"
+		return 1
+	fi
+	"installer_${inst}_main" "${arch}" "${plat}" "${root}" "${foreign}" || \
+		return ${?}
+	return 0
+}
diff --git a/src/local.mk b/src/local.mk
index 331f13c..bfd93f8 100644
--- a/src/local.mk
+++ b/src/local.mk
@@ -19,6 +19,7 @@ prokit_SOURCES += \
 	src/cmd.sh \
 	src/profile.sh \
 	src/package.sh \
+	src/installer.sh \
 	src/install.sh
 
 include $(top_srcdir)/src/cmd/local.mk