Configuration file sharing ========================== A simple tool to help share (configuration) files across multiple machines. Actual files are stored in directories with names roughly matching the `%.+%` pattern. The part between the percent signs is the name of an environment variable. Every file in such a directory gets a symlink in the directory pointed to by the environment variable. Directory hierarchies are preserved. A database of symlinks is maintained in case a shared file is deleted (the corresponding symlink is then deleted too). The default database file name is "links.bin", maintained in the top-level directory with shared files. This description is obviously confusing; see the complete usage example below. Usage ----- Symlinks are managed by `update.sh`. ``` usage: update.sh [-h|--help] [-d|--database PATH] [-s|--shared-dir DIR] [-n|--dry-run] ``` Pass the `--help` flag to this script to examine its detailed usage information. A complete usage example is given below. In this example, the symlinks to files in "../src" must appear in "/test/dest". ``` > pwd /cygdrive/d/workspace/personal/config-links > tree /test/dest/ /test/dest/ 0 directories, 0 files > tree ../src/ ../src/ └── %DEST% ├── a │   └── b │   └── c │   └── test.txt └── foo └── bar └── baz 6 directories, 2 files > echo "$DEST" /test/dest > ./update.sh --shared-dir ../src/ ... > tree /test/dest/ /test/dest/ ├── a │   └── b │   └── c │   └── test.txt -> /cygdrive/d/workspace/personal/src/%DEST%/a/b/c/test.txt └── foo └── bar └── baz -> /cygdrive/d/workspace/personal/src/%DEST%/foo/bar/baz 5 directories, 2 files ``` For more realistic usage examples, see * my [Linux/Cygwin environment], * configuration files for various [Windows apps]. [Linux/Cygwin environment]: https://github.com/egor-tensin/linux-home [Windows apps]: https://github.com/egor-tensin/windows-home Limitations ----------- Variable names must be alphanumeric. More precisely, the corresponding directory names must match the `^%[_[:alpha:]][_[:alnum:]]*%$` regular expression. Consequently, `ProgramFiles(x86)` (and other weird variable names Windows allows) are not supported. A special variable name `CONFIG_LINKS_ROOT` is resolved to the root path, "/". License ------- Distributed under the MIT License. See [LICENSE.txt] for details. [LICENSE.txt]: LICENSE.txt