Add QEMU-based debootstrap for foreign arch

Adds a new 'qemu-bootstrap' step with an 'arch' keyword that invokes the
'qemu-debootstrap' tool from the qemu-user-static package.

1 files changed, 48 insertions, 0 deletions

diff --git a/vmdb/plugins/qemudebootstrap_plugin.py b/vmdb/plugins/qemudebootstrap_plugin.py
new file mode 100644
index 0000000..8afa776
--- /dev/null
+++ b/vmdb/plugins/qemudebootstrap_plugin.py
@@ -0,0 +1,48 @@
+# Copyright 2017  Lars Wirzenius and Stuart Prescott
+#
+# This program 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.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# =*= License: GPL-3+ =*=
+
+
+
+import cliapp
+
+import vmdb
+
+
+class QemuDebootstrapPlugin(cliapp.Plugin):
+
+    def enable(self):
+        self.app.step_runners.add(QemuDebootstrapStepRunner())
+
+
+class QemuDebootstrapStepRunner(vmdb.StepRunnerInterface):
+
+    def get_required_keys(self):
+        return ['qemu-debootstrap', 'target', 'mirror', 'arch']
+
+    def run(self, step, settings, state):
+        suite = step['qemu-debootstrap']
+        tag = step['target']
+        target = state.mounts[tag]
+        mirror = step['mirror']
+        variant = step.get('variant', '-')
+        arch = step['arch']
+        if not (suite and tag and target and mirror and arch):
+            raise Exception('missing arg for qemu-debootstrap step')
+        vmdb.progress(
+            'Qemu-debootstrap {} {} {} {}'.format(suite, target, mirror, arch))
+        vmdb.runcmd(['qemu-debootstrap', '--arch', arch, '--variant', variant,
+                     suite, target, mirror])