File-aware dynamic command runner.

Xf try to find a file from the current directory and upwards, and execute different command according to the different file found.

cargo install xf

Download from Github Releases, unzip and add xf to your $PATH.

Xf loads rules from configuration file.

The default path of configuration file is $HOME/.xf, which can be specified with the XF_CONFIG_PATH environment variable.

Rule format is:

<file>: <command>

<file> tell xf what file to find, <command> tell xf what command to execute if found.

xf has a built-in lowest priority rule: Xfile: $file $@

Configure the following rules:

Taskfile: bash $file $@

Run xf foo.

xf try to find for Taskfile file in the current directory, and if found, execute bash $file foo .

If not found, continue finding for Xfile file in the current directory, if found, execute Xfile foo (built-in rule).

If not found, enter the parent directory to continue this process.

File matching rules:

1. Ignore case. Xfile can match files xfile, xFile.

2. Find the filename that contains the rule filename. Xfile can match the files Xfile.sh, Xfile.cmd.

The following built-in variables can be used in the command part of rule.

• $@ - pass-through command line parameters
• $file - file path
• $fileDir - file directory, process's cwd will be set to this value
• $currentDir - the current directory

These variables(exclude $@) are also synced to environment variables:

• $file => XF_FILE
• $fileDir => XF_FILE_DIR
• $currentDir => XF_CURRENT_DIR

Actually, the command name affect builtin-rule and environment variable prefix.

If you rename executable file xf to task:

1. The built-in rule will be Taskfile: $file $@

2. The default configuration file path will be $HOME/.task.

3. The environment variable XF_CONFIG_PATH will be TASK_CONFIG_PATH.

4. The environment variable for $file will be TASK_FILE。

Copyright (c) 2022 xf-developers.

argc is made available under the terms of either the MIT License or the Apache License 2.0, at your option.

See the LICENSE-APACHE and LICENSE-MIT files for license details.