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authorDavid Robillard <d@drobilla.net>2010-10-28 02:03:57 +0000
committerDavid Robillard <d@drobilla.net>2010-10-28 02:03:57 +0000
commit0d729e6fa444d193f8e4b3f55117887ef2b9aa8a (patch)
treef01a06640bf0f94706b2823d1394e80658f8cde3 /lv2include/lv2include.py
parent9c054a95b02119526ba879805e78b577bd26c68f (diff)
downloadlv2-0d729e6fa444d193f8e4b3f55117887ef2b9aa8a.tar.xz
Move lv2include/lv2include to core.lv2/lv2config and make lv2core build system install it.
Diffstat (limited to 'lv2include/lv2include.py')
-rwxr-xr-xlv2include/lv2include.py168
1 files changed, 0 insertions, 168 deletions
diff --git a/lv2include/lv2include.py b/lv2include/lv2include.py
deleted file mode 100755
index 0e4b00f..0000000
--- a/lv2include/lv2include.py
+++ /dev/null
@@ -1,168 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-
-"""A program (and Python module) to generate a tree of symlinks to LV2
-extension bundles, where the path of the symlink corresponds to the URI of
-the extension. This allows including extension headers in code without using
-the bundle name. Including extension headers in this way is much better,
-since there is no dependency on the (meaningless and non-persistent) bundle
-name in the code using the header.
-
-For example, after running lv2includegen (and setting the compiler include
-path appropriately), LV2 headers could be included like so:
-
-#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-#include "lv2/lv2plug.in/ns/ext/event/event.h"
-#include "lv2/example.org/foo/foo.h"
-
-Where the initial "lv2" is arbitrary; in this case lv2includegen's output
-directory was "lv2", and that directory's parent was added to the compiler
-include search path. It is a good idea to use such a prefix directory so
-domain names do not conflict with anything else in the include path.
-"""
-
-__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 stat
-import sys
-
-redland = True
-
-try:
- import RDF # Attempt to import Redland
-except:
- try:
- import rdflib # Attempt to import RDFLib
- redland = False
- except:
- print >> sys.stderr, """Failed to import `RDF' (Redland) or `rdflib'.
-(Please install either package, likely `python-librdf' or `python-rdflib')"""
- sys.exit(1)
-
-def rdf_namespace(uri):
- "Create a new RDF namespace"
- if redland:
- return RDF.NS(uri)
- else:
- return rdflib.Namespace(uri)
-
-def rdf_load(uri):
- "Load an RDF model"
- if redland:
- model = RDF.Model()
- parser = RDF.Parser(name="turtle")
- parser.parse_into_model(model, uri)
- else:
- model = rdflib.ConjunctiveGraph()
- model.parse(uri, format="n3")
- return model
-
-def rdf_find_type(model, rdf_type):
- "Return a list of the URIs of all resources in model with a given type"
- if redland:
- results = model.find_statements(RDF.Statement(None, rdf.type, rdf_type))
- ret = []
- for r in results:
- ret.append(str(r.subject.uri))
- return ret
- else:
- results = model.triples([None, rdf.type, rdf_type])
- ret = []
- for r in results:
- ret.append(r[0])
- return ret
-
-rdf = rdf_namespace('http://www.w3.org/1999/02/22-rdf-syntax-ns#')
-lv2 = rdf_namespace('http://lv2plug.in/ns/lv2core#')
-
-def lv2_path():
- "Return the LV2 search path (LV2_PATH in the environment, or a default)."
- 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 __bundles(search_path):
- "Return a list of all LV2 bundles found in 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)
-
-def __mkdir_p(path):
- "Equivalent of UNIX mkdir -p"
- try:
- os.makedirs(path)
- except OSError as e:
- if e.errno == errno.EEXIST:
- pass
- else:
- raise
-
-def build_tree(search_path, outdir):
- """Build a directory tree under outdir containing symlinks to all LV2
- extensions found in search_path, such that the symlink paths correspond to
- the extension URIs."""
- print "Building LV2 include tree at", outdir, "for", search_path
- if os.access(outdir, os.F_OK) and not os.access(outdir, os.W_OK):
- print >> sys.stderr, "lv2include.py: cannot build `%s': Permission denied" % outdir
- sys.exit(1)
- for bundle in __bundles(search_path):
- # Load manifest into model
- manifest = rdf_load('file://' + os.path.join(bundle, 'manifest.ttl'))
-
- # Query extension URI
- specs = rdf_find_type(manifest, lv2.Specification)
- for ext_uri in specs:
- ext_scheme = ext_uri[0:ext_uri.find(':')]
- ext_path = os.path.normpath(ext_uri[ext_uri.find(':') + 1:].lstrip('/'))
- ext_dir = os.path.join(outdir, ext_scheme, ext_path)
-
- # Make parent directories
- __mkdir_p(os.path.dirname(ext_dir))
-
- # Remove existing symlink if necessary
- if os.access(ext_dir, os.F_OK):
- mode = os.lstat(ext_dir)[stat.ST_MODE]
- if stat.S_ISLNK(mode):
- os.remove(ext_dir)
- else:
- raise Exception(ext_dir + " exists and is not a link")
-
- # Make symlink to bundle directory
- os.symlink(bundle, ext_dir)
-
-if __name__ == "__main__":
- args = sys.argv[1:]
-
- if len(args) == 0:
- build_tree('/usr/local/lib/lv2', '/usr/local/include/lv2')
- build_tree('/usr/lib/lv2', '/usr/include/lv2')
- sys.exit(0)
-
- elif len(args) != 1:
- __usage()
- sys.exit(1)
-
- else:
- build_tree(lv2_path(), args[1])