1 files changed, 75 insertions, 0 deletions
diff --git a/waflib/extras/lv2.py b/waflib/extras/lv2.py
new file mode 100644
index 00000000..ffcb2e77
--- /dev/null
+++ b/waflib/extras/lv2.py
@@ -0,0 +1,75 @@
+import os
+import sys
+
+from waflib import Logs
+from waflib import Options
+
+def options(opt):
+    conf_opts = opt.get_option_group('Configuration options')
+    conf_opts.add_option('--lv2-user', action='store_true', default=False, dest='lv2_user',
+                         help='install LV2 bundles to user location')
+    conf_opts.add_option('--lv2dir', type='string',
+                         help='LV2 bundles [Default: LIBDIR/lv2]')
+
+def register_lv2_path(conf, path):
+    """Return the default LV2_PATH to use for this system"""
+    if 'LV2_PATH' not in conf.run_env and 'LV2_PATH' not in os.environ:
+        conf.run_env['LV2_PATH'] = [conf.env['LV2DIR']]
+
+    conf.run_env.append_unique('LV2_PATH', path)
+
+def default_lv2_path(conf):
+    """Return the default LV2_PATH for the build target as a list"""
+    if conf.env.DEST_OS == 'darwin':
+        return ['~/Library/Audio/Plug-Ins/LV2',
+                '~/.lv2',
+                '/usr/local/lib/lv2',
+                '/usr/lib/lv2',
+                '/Library/Audio/Plug-Ins/LV2']
+    elif conf.env.DEST_OS == 'haiku':
+        return ['~/.lv2',
+                '/boot/common/add-ons/lv2']
+    elif conf.env.DEST_OS == 'win32':
+        return ['%APPDATA%\\\\LV2',
+                '%COMMONPROGRAMFILES%\\\\LV2']
+    else:
+        libdirname = os.path.basename(conf.env.LIBDIR)
+        return ['~/.lv2',
+                '/usr/%s/lv2' % libdirname,
+                '/usr/local/%s/lv2' % libdirname]
+    
+def configure(conf):
+    def env_path(parent_dir_var, name):
+        parent = os.getenv(parent_dir_var)
+        if parent:
+            return os.path.join(parent, name)
+        else:
+            Logs.warn('Environment variable %s unset, using LIBDIR\n' % parent_dir_var)
+            return os.path.join(conf.env['LIBDIR'], name)
+
+    def normpath(path):
+        if sys.platform == 'win32':
+            return os.path.normpath(path).replace('\\', '/')
+        else:
+            return os.path.normpath(path)
+
+    if Options.options.lv2dir:
+        conf.env['LV2DIR'] = Options.options.lv2dir
+    elif Options.options.lv2_user:
+        if conf.env.DEST_OS == 'darwin':
+            conf.env['LV2DIR'] = env_path('HOME', 'Library/Audio/Plug-Ins/LV2')
+        elif conf.env.DEST_OS == 'win32':
+            conf.env['LV2DIR'] = env_path('APPDATA', 'LV2')
+        else:
+            conf.env['LV2DIR'] = env_path('HOME', '.lv2')
+    else:
+        if conf.env.DEST_OS == 'darwin':
+            conf.env['LV2DIR'] = '/Library/Audio/Plug-Ins/LV2'
+        elif conf.env.DEST_OS == 'win32':
+            conf.env['LV2DIR'] = env_path('COMMONPROGRAMFILES', 'LV2')
+        else:
+            conf.env['LV2DIR'] = os.path.join(conf.env['LIBDIR'], 'lv2')
+
+    # Add default LV2_PATH to runtime environment for tests that use plugins
+    if 'LV2_PATH' not in os.environ:
+        conf.run_env['LV2_PATH'] = default_lv2_path(conf)