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authorDavid Robillard <d@drobilla.net>2010-10-05 22:46:59 +0000
committerDavid Robillard <d@drobilla.net>2010-10-05 22:46:59 +0000
commit01119626a241ef35f28875fb9aa7f5bdd3a8bc0c (patch)
treec84db5090c5267ab43fd84d4c717265053d68718 /lv2includegen/lv2includegen.py
parentbc85005c77ffe626c44fbb01174654e7a76211c9 (diff)
downloadlv2-01119626a241ef35f28875fb9aa7f5bdd3a8bc0c.tar.xz
Add lv2includegen tool to generate include directory trees for including headers based on extension URIs.
Diffstat (limited to 'lv2includegen/lv2includegen.py')
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diff --git a/lv2includegen/lv2includegen.py b/lv2includegen/lv2includegen.py
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+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#
+# lv2includegen, a tool to generate directory trees for including
+# extension headers from source code.
+
+__authors__ = 'David Robillard'
+__license = 'GNU GPL v3 or later <http://www.gnu.org/licenses/gpl.html>'
+__contact__ = 'devel@lists.lv2plug.in'
+__date__ = '2010-10-05'
+
+import errno
+import glob
+import os
+import sys
+
+import RDF
+
+rdf = RDF.NS('http://www.w3.org/1999/02/22-rdf-syntax-ns#')
+lv2 = RDF.NS('http://lv2plug.in/ns/lv2core#')
+
+def lv2_path():
+ "Return the LV2 search path (LV2_PATH)."
+ if 'LV2_PATH' in os.environ:
+ return os.environ['LV2_PATH']
+ else:
+ ret = '/usr/lib/lv2' + os.pathsep + '/usr/local/lib/lv2'
+ print 'LV2_PATH unset, using default ' + ret
+ return ret
+
+def lv2_bundles(search_path):
+ "Return a list of all LV2 bundles found in a search path."
+ dirs = search_path.split(os.pathsep)
+ bundles = []
+ for dir in dirs:
+ bundles += glob.glob(os.path.join(dir, '*.lv2'))
+ return bundles
+
+def usage():
+ script = os.path.basename(sys.argv[0])
+ print """Usage:
+ %s OUTDIR
+
+ OUTDIR : Directory to build include tree
+
+Example:
+ %s /usr/local/include/lv2
+""" % (script, script)
+ sys.exit(-1)
+
+def mkdir_p(path):
+ try:
+ os.makedirs(path)
+ except OSError as e:
+ if e.errno == errno.EEXIST:
+ pass
+ else:
+ raise
+
+if __name__ == "__main__":
+ args = sys.argv[1:]
+ if len(args) != 1:
+ usage()
+ exit(1)
+
+ outdir = args[0]
+ print "Building LV2 include tree at", outdir
+
+ for bundle in lv2_bundles(lv2_path()):
+ # Load manifest into model
+ manifest = RDF.Model()
+ parser = RDF.Parser(name="guess")
+ parser.parse_into_model(manifest, 'file://' + os.path.join(bundle, 'manifest.ttl'))
+
+ # Query extension URI
+ results = manifest.find_statements(RDF.Statement(None, rdf.type, lv2.Specification))
+ for r in results:
+ ext_uri = str(r.subject.uri)
+ ext_path = os.path.normpath(ext_uri[ext_uri.find(':') + 1:].lstrip('/'))
+ ext_parent_dir = os.path.join(outdir, os.path.dirname(ext_path))
+ ext_dir = os.path.basename(ext_path)
+
+ # Make symlink to bundle directory
+ mkdir_p(ext_parent_dir)
+ os.symlink(bundle, os.path.join(ext_parent_dir, ext_dir))