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authorDavid Robillard <d@drobilla.net>2010-10-05 23:57:15 +0000
committerDavid Robillard <d@drobilla.net>2010-10-05 23:57:15 +0000
commit46aa9f16d92b8c3ca3b03a36bf54f18721725963 (patch)
treec53b3dc08a4172cc8101bbf3cb5af49038b1f9d5 /lv2includegen
parent9b500a6a4567cf93f051a0b3aad8863531a44f92 (diff)
downloadlv2-46aa9f16d92b8c3ca3b03a36bf54f18721725963.tar.xz
Handle existing symlinks gracefully (but don't delete existing non-links to be safe).
Diffstat (limited to 'lv2includegen')
-rwxr-xr-xlv2includegen/lv2includegen.py30
1 files changed, 21 insertions, 9 deletions
diff --git a/lv2includegen/lv2includegen.py b/lv2includegen/lv2includegen.py
index 80c0509..a27f1cd 100755
--- a/lv2includegen/lv2includegen.py
+++ b/lv2includegen/lv2includegen.py
@@ -12,6 +12,7 @@ __date__ = '2010-10-05'
import errno
import glob
import os
+import stat
import sys
import RDF
@@ -46,9 +47,9 @@ def usage():
Example:
%s /usr/local/include/lv2
""" % (script, script)
- sys.exit(-1)
def mkdir_p(path):
+ "Equivalent of UNIX mkdir -p"
try:
os.makedirs(path)
except OSError as e:
@@ -58,6 +59,8 @@ def mkdir_p(path):
raise
def lv2includegen(bundles):
+ """Build a directory tree of symlinks to LV2 extension bundles
+ for including header files using URI-like paths."""
for bundle in bundles:
# Load manifest into model
manifest = RDF.Model()
@@ -67,20 +70,29 @@ def lv2includegen(bundles):
# 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)
+ ext_uri = str(r.subject.uri)
+ ext_path = os.path.normpath(ext_uri[ext_uri.find(':') + 1:].lstrip('/'))
+ ext_dir = os.path.join(outdir, ext_path)
- # Make symlink to bundle directory
- mkdir_p(ext_parent_dir)
- os.symlink(bundle, os.path.join(ext_parent_dir, ext_dir))
+ # 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) != 1:
usage()
- exit(1)
+ sys.exit(1)
outdir = args[0]
print "Building LV2 include tree at", outdir