diff options
| author | Ben Klein <robobenklein@gmail.com> | 2018-02-23 16:56:19 -0500 |
|---|---|---|
| committer | Anish Athalye <me@anishathalye.com> | 2018-10-16 20:22:40 -0400 |
| commit | a9cf9fffe4b7ac6ed9f58d69e06f75681715a0e2 (patch) | |
| tree | f442551b47ae4d0351b1c5f3dfd79eace82aa327 | |
| parent | b442b9bdced7d849ddc0ea4283de1f80d9bacd8c (diff) | |
Implement conditional linking
| -rw-r--r-- | README.md | 1 | ||||
| -rw-r--r-- | dotbot/plugins/link.py | 18 | ||||
| -rw-r--r-- | test/tests/link-if.bash | 2 |
3 files changed, 21 insertions, 0 deletions
@@ -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 diff --git a/dotbot/plugins/link.py b/dotbot/plugins/link.py index 5274e3b..bf1c5a9 100644 --- a/dotbot/plugins/link.py +++ b/dotbot/plugins/link.py @@ -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) diff --git a/test/tests/link-if.bash b/test/tests/link-if.bash new file mode 100644 index 0000000..de7948f --- /dev/null +++ b/test/tests/link-if.bash @@ -0,0 +1,2 @@ +test_description='link if' +. '../test-lib.bash' |