Initial support for pbuilder.

Note: pbuilder --create does not work well with relative build path,
base.tgz creation fails.
This led to the build_dir path being absolute.
Perhaps we should make it more granular and only use absolute paths for
pbuilder options.

Makefile

@@ -24,6 +24,12 @@ iso: prepare
 	lb build 2>&1 | tee build.log
 	@echo "VyOS ISO build successful"
 
+.PHONY: prepare-package-env
+.ONESHELL:
+prepare-package-env:
+	@scripts/pbuilder-config
+	@scripts/pbuilder-setup
+
 .PHONY: clean
 .ONESHELL:
 clean:

scripts/build-config

@@ -51,6 +51,13 @@ if (args['debian_mirror'] != defaults.DEBIAN_MIRROR) and \
    (args['pbuilder_debian_mirror'] == defaults.DEBIAN_MIRROR):
     args['pbuilder_debian_mirror'] = args['debian-mirror']
 
+# Populate some defaults that are not configurable,
+# but that are handy to have in the options hash
+args['distribution'] = defaults.DEBIAN_DISTRIBUTION
+args['build_dir'] = os.path.join(os.getcwd(), defaults.BUILD_DIR)
+args['pbuilder_config'] = defaults.PBUILDER_CONFIG
+
+
 # Save to file
 distutils.dir_util.mkpath(defaults.BUILD_DIR)
 

scripts/defaults.py

@@ -5,3 +5,8 @@ BUILD_CONFIG = os.path.join(BUILD_DIR, 'build-config.json')
 
 # The default mirror was chosen entirely at random
 DEBIAN_MIRROR = 'http://ftp.nl.debian.org/debian/'
+
+DEBIAN_DISTRIBUTION = 'jessie'
+
+PBUILDER_CONFIG = os.path.join(BUILD_DIR, 'pbuilderrc')
+PBUILDER_DIR = os.path.join(BUILD_DIR, 'pbuilder')

scripts/pbuilder-config

@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+
+import sys
+import os
+import json
+
+import pystache
+
+import defaults
+import util
+
+util.check_build_config()
+
+pbuilder_config_tmpl = """
+
+BASETGZ={{build_dir}}/base.tgz
+BUILDPLACE={{build_dir}}/pbuilder/
+MIRRORSITE={{pbuilder_debian_mirror}}
+BUILDRESULT={{build_dir}}/pbuilder/result/
+
+DISTRIBUTION={{distribution}}
+
+ARCHITECTURE={{architecture}}
+
+"""
+
+with open(defaults.BUILD_CONFIG, 'r') as f:
+     build_config = json.load(f)
+
+pbuilder_config = pystache.render(pbuilder_config_tmpl, build_config)
+
+print("Configuring pbuilder")
+
+with open(defaults.PBUILDER_CONFIG, 'w+') as f:
+    f.write(pbuilder_config)

scripts/pbuilder-setup

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+
+import sys
+import os
+import json
+import distutils.dir_util
+
+import pystache
+
+import defaults
+import util
+
+util.check_build_config()
+
+pbuilder_create_cmd_tmpl= """
+    sudo pbuilder --create \
+                  --configfile {{pbuilder_config}}
+"""
+
+with open(defaults.BUILD_CONFIG, 'r') as f:
+     build_config = json.load(f)
+
+pbuilder_create_command = pystache.render(pbuilder_create_cmd_tmpl, build_config)
+
+print("Creating a pbuilder environment")
+#os.chdir(defaults.BUILD_DIR)
+
+distutils.dir_util.mkpath(defaults.PBUILDER_DIR)
+
+result = os.system(pbuilder_create_command)
+if result > 0:
+    print("pbuilder environment bootstrap failed")
+    sys.exit(1)
+

scripts/pbuilder/hooks/C10shell

@@ -0,0 +1,6 @@
+#!/bin/sh
+# invoke shell if build fails.
+
+apt-get install -y --force-yes vim nano less bash
+cd /tmp/buildd/*/debian/..
+/bin/bash < /dev/tty > /dev/tty 2> /dev/tty