From 5aca4e1c04cc596a1202ff880ec186ce205fd817 Mon Sep 17 00:00:00 2001
From: Christian Mauderer <christian.mauderer@embedded-brains.de>
Date: Thu, 5 Apr 2018 15:02:28 +0200
Subject: FIXME: waf: Build multiple configurations.

---
 buildset/extended.ini |  2 +-
 waf_libbsd.py         |  3 --
 wscript               | 87 +++++++++++++++++++++++++++++++++------------------
 3 files changed, 57 insertions(+), 35 deletions(-)

diff --git a/buildset/extended.ini b/buildset/extended.ini
index e761cf95..94e13c17 100644
--- a/buildset/extended.ini
+++ b/buildset/extended.ini
@@ -3,4 +3,4 @@ name = extended
 extends = base.ini
 
 [modules-enabled]
-tests = 0
+dev_nic_broadcomm = 0
diff --git a/waf_libbsd.py b/waf_libbsd.py
index b17bac5a..fffdf9fe 100644
--- a/waf_libbsd.py
+++ b/waf_libbsd.py
@@ -304,9 +304,6 @@ class Builder(builder.ModuleManager):
                                includes = conf.env.IFLAGS,
                                mandatory = False)
 
-    def configure(self, conf):
-        pass
-
     def build(self, bld):
         # This is only necessary for build. But it depends on the waflib which
         # is only available in a waf context. But we need the module manager for
diff --git a/wscript b/wscript
index 48af6293..453b39a8 100644
--- a/wscript
+++ b/wscript
@@ -51,8 +51,9 @@ try:
     import configparser
 except ImportError:
     import ConfigParser as configparser
+import waflib.Options
 
-builders = None
+builders = {}
 
 BUILDSET_DIR = "buildset"
 BUILDSET_DEFAULT = "buildset/base.ini"
@@ -88,8 +89,6 @@ def load_config(conf, f):
     ini = load_ini(conf, f)
     config = {}
 
-    if not ini.has_option('general', 'name'):
-        conf.fatal("'{}' is missing a general/name.".format(f))
     config['name'] = ini.get('general', 'name')
 
     config['modules-enabled'] = []
@@ -101,21 +100,59 @@ def load_config(conf, f):
             config['modules-enabled'].append(mod)
     return config
 
-def create_builder(conf):
+def check_buildsets(ctx, buildset_opt):
+    buildsets = []
+    if buildset_opt == []:
+        buildset_opt.append(BUILDSET_DEFAULT)
+    for bs in buildset_opt:
+        if os.path.isdir(bs):
+            for f in os.listdir(bs):
+                if f[-4:] == ".ini":
+                    buildsets += [os.path.join(bs,f)]
+        else:
+            for f in bs.split(','):
+                buildsets += [f]
+    return buildsets
+
+def post_init(ctx, env, context_classes):
+    buildsets = check_buildsets(ctx, env.options['buildset'])
+    bsnames = []
+
     global builders
-    if builders is not None:
-        conf.fatal('builders created multiple times')
-    builders = []
-    for bs in conf.env.BUILDSET:
+
+    for bs in buildsets:
+        # create builder objects
         builder = waf_libbsd.Builder()
         libbsd.load(builder)
-        bsconfig = load_config(conf, bs)
+        bsconfig = load_config(ctx, bs)
+        bsname = bsconfig['name']
+        bsnames += [bsname]
         builder.updateConfiguration(bsconfig)
         builder.generate(rtems_version)
-        builders.append(builder)
+        builders[bsname]=builder
+
+        # Update the contextes for build variants
+        for y in context_classes:
+            newcmd = y.cmd + '-' + bsname
+            newvariant = y.variant + '-' + bsname
+            class context(y):
+                cmd = newcmd
+                variant = newvariant
+                libbsd_buildset_name = bsname
+
+    # Transform the commands to per build variant commands
+    commands = []
+    for cmd in waflib.Options.commands:
+        if cmd.startswith(('build', 'clean', 'install')):
+            for bsname in bsnames:
+                commands += [cmd + '-' + bsname]
+        else:
+            commands += [cmd]
+    waflib.Options.commands = commands
 
 def init(ctx):
-    rtems.init(ctx, version = rtems_version, long_commands = True)
+    rtems.init(ctx, version = rtems_version, long_commands = True,
+               post_init = post_init)
 
 def options(opt):
     rtems.options(opt)
@@ -156,8 +193,14 @@ def bsp_configure(conf, arch_bsp):
         conf.fatal("RTEMS kernel POSIX support is disabled; configure RTEMS with --enable-posix")
     if rtems.check_networking(conf):
         conf.fatal("RTEMS kernel contains the old network support; configure RTEMS with --disable-networking")
+    env = conf.env.derive()
     for builder in builders:
-        builder.bsp_configure(conf, arch_bsp)
+        ab = conf.env.RTEMS_ARCH_BSP
+        variant = ab + "-" + builder
+        conf.msg('Configure variant: ', variant)
+        conf.setenv(variant, env)
+        builders[builder].bsp_configure(conf, arch_bsp)
+        conf.setenv(ab)
 
 def configure(conf):
     if conf.options.auto_regen:
@@ -169,26 +212,8 @@ def configure(conf):
     conf.env.NET_CONFIG = conf.options.net_config
     conf.env.FREEBSD_OPTIONS =conf.options.freebsd_options
     conf.env.OPTIMIZATION = conf.options.optimization
-    conf.env.BUILDSET = []
-    if conf.options.buildset == []:
-        conf.options.buildset.append(BUILDSET_DEFAULT)
-    for bs in conf.options.buildset:
-        if os.path.isdir(bs):
-            for f in os.listdir(bs):
-                if f[-4:] == ".ini":
-                    conf.env.BUILDSET.append(os.path.join(bs,f))
-        else:
-            for f in bs.split(','):
-                conf.env.BUILDSET.append(f)
-
-    create_builder(conf);
     rtems.configure(conf, bsp_configure)
-    conf.msg('Enabled buildsets: ', conf.env.BUILDSET)
-    for builder in builders:
-        builder.configure(conf)
 
 def build(bld):
-    create_builder(bld);
     rtems.build(bld)
-    for builder in builders:
-        builder.build(bld)
+    builders[bld.libbsd_buildset_name].build(bld)
-- 
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