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mirror of synced 2024-06-14 21:31:09 -04:00

Implement conditional linking

This commit is contained in:
Ben Klein 2018-02-23 16:56:19 -05:00 committed by Anish Athalye
parent b442b9bdce
commit a9cf9fffe4
3 changed files with 21 additions and 0 deletions

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@ -192,6 +192,7 @@ Available extended configuration parameters:
| `force` | Force removes the old target, file or folder, and forces a new link (default:false) |
| `relative` | Use a relative path when creating the symlink (default:false, absolute links) |
| `glob` | Treat a `*` character as a wildcard, and perform link operations on all of those matches (default:false) |
| `if` | Execute this in your `$SHELL` and only link if it is successful. |
#### Example

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@ -2,6 +2,7 @@ import os
import glob
import shutil
import dotbot
import subprocess
class Link(dotbot.Plugin):
@ -31,6 +32,10 @@ class Link(dotbot.Plugin):
use_glob = defaults.get('glob', False)
if isinstance(source, dict):
# extended config
test = source.get('if')
if test is not None and not self._test_success(test):
self._log.lowinfo('Skipping %s' % destination)
continue
relative = source.get('relative', relative)
force = source.get('force', force)
relink = source.get('relink', relink)
@ -90,6 +95,19 @@ class Link(dotbot.Plugin):
self._log.error('Some links were not successfully set up')
return success
def _test_success(self, command):
with open(os.devnull, 'w') as devnull:
ret = subprocess.call(
command,
shell=True,
stdout=devnull,
stderr=devnull,
executable=os.environ.get('SHELL'),
)
if ret != 0:
self._log.debug('Test \'%s\' returned false' % command)
return ret == 0
def _default_source(self, destination, source):
if source is None:
basename = os.path.basename(destination)

2
test/tests/link-if.bash Normal file
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@ -0,0 +1,2 @@
test_description='link if'
. '../test-lib.bash'