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authorLzu Tao <taolzu@gmail.com>2018-12-03 04:02:56 (GMT)
committerLzu Tao <taolzu@gmail.com>2018-12-03 15:48:37 (GMT)
commite2fc6bcd1c098f55ca92467edacbb27b99942b6f (patch)
treeb1a48abc249fbea9a73a025ccfb9447e84bf0531 /contrib
parent4fe675af1cc8eb65f843e06962763dab8c920ce5 (diff)
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meson: Update usage of InstallSymlink helper
Diffstat (limited to 'contrib')
-rw-r--r--contrib/meson/InstallSymlink.py64
1 files changed, 33 insertions, 31 deletions
diff --git a/contrib/meson/InstallSymlink.py b/contrib/meson/InstallSymlink.py
index d7b1e5a..a0858eb 100644
--- a/contrib/meson/InstallSymlink.py
+++ b/contrib/meson/InstallSymlink.py
@@ -7,42 +7,49 @@
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
-import errno
+
import os
+import pathlib # since Python 3.4
+
+def prepend_destdir(path):
+ """prepend_destdir(path) -> Path
-def mkdir_p(path, dir_mode=0o777):
- try:
- os.makedirs(path, mode=dir_mode)
- except OSError as exc: # Python >2.5
- if exc.errno == errno.EEXIST and os.path.isdir(path):
- pass
- else:
- raise
+ Needed because pathlib.Path.joinpath() discards the first path if the
+ second one is absolute, which is usually the case here.
+ """
+ path = pathlib.Path(path)
+ DESTDIR = os.environ.get('DESTDIR')
+
+ if DESTDIR:
+ if not path.is_absolute():
+ raise Exception('{!r} must be an absolute path when DESTDIR is set'.format(path))
+ path = pathlib.Path(DESTDIR).joinpath(*path.resolve().parts[1:])
+ return path
-def InstallSymlink(src, dst, install_dir, dst_is_dir=False, dir_mode=0o777):
- if not os.path.exists(install_dir):
- mkdir_p(install_dir, dir_mode)
- if not os.path.isdir(install_dir):
- raise NotADirectoryError(install_dir)
- new_dst = os.path.join(install_dir, dst)
- if os.path.islink(new_dst) and os.readlink(new_dst) == src:
- print('File exists: %r -> %r' % (dst, src))
+def install_symlink(src, dst, install_dir, dst_is_dir=False, dir_mode=0o777):
+ if not install_dir.exists():
+ install_dir.mkdir(mode=dir_mode, parents=True, exist_ok=True)
+ if not install_dir.is_dir():
+ raise NotADirectoryError(install_dir)
+
+ new_dst = install_dir.joinpath(dst)
+ if new_dst.is_symlink() and os.readlink(new_dst) == src:
+ print('File exists: {!r} -> {!r}'.format(new_dst, src))
return
- print('Installing symlink %r -> %r' % (new_dst, src))
- os.symlink(src, new_dst, dst_is_dir)
+ print('Installing symlink {!r} -> {!r}'.format(new_dst, src))
+ new_dst.symlink_to(src, target_is_directory=dst_is_dir)
def main():
import argparse
- parser = argparse.ArgumentParser(description='Install a symlink.\n',
- usage='usage: InstallSymlink.py [-h] [-d] [-m MODE] src dst '
- 'install_dir\n\n'
+ parser = argparse.ArgumentParser(description='Install a symlink',
+ usage='InstallSymlink.py [-h] [-d] [-m MODE] src dst install_dir\n\n'
'example:\n'
- '\tInstallSymlink.py libcrypto.so.1.0.0 libcrypt.so '
- '/usr/lib/x86_64-linux-gnu False')
+ '\tInstallSymlink.py dash sh /bin\n'
+ '\tDESTDIR=./staging InstallSymlink.py dash sh /bin')
parser.add_argument('src', help='target to link')
parser.add_argument('dst', help='link name')
parser.add_argument('install_dir', help='installation directory')
@@ -56,16 +63,11 @@ def main():
src = args.src
dst = args.dst
- install_dir = args.install_dir
dst_is_dir = args.isdir
dir_mode = int(args.mode, 8)
- DESTDIR = os.environ.get('DESTDIR')
- if DESTDIR:
- install_dir = DESTDIR + install_dir if os.path.isabs(install_dir) \
- else os.path.join(DESTDIR, install_dir)
-
- InstallSymlink(src, dst, install_dir, dst_is_dir, dir_mode)
+ install_dir = prepend_destdir(args.install_dir)
+ install_symlink(src, dst, install_dir, dst_is_dir, dir_mode)
if __name__ == '__main__':