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Showing content from https://github.com/joh/when-changed below:

joh/when-changed: Execute a command when a file is changed

Tired of switching to the shell to test the changes you just made to your code? Starting to feel like a mindless drone, manually running pdflatex for the 30th time to see how your resume now looks?

Worry not, when-changed is here to help! Whenever it sees that you have changed the file, when-changed runs any command you specify.

So to generate your latex resume automatically, you can do this:

$ when-changed CV.tex pdflatex CV.tex

Sweetness!

• Python 2.6+
• watchdog

pip install https://github.com/joh/when-changed/archive/master.zip

when-changed [OPTION] FILE COMMAND...
when-changed [OPTION] FILE [FILE ...] -c COMMAND

FILE can be a directory. Use %f to pass the filename to the command.

Options:

• -r Watch recursively
• -v Verbose output. Multiple -v options increase the verbosity. The maximum is 3: -vvv.
• -1 Don't re-run command if files changed while command was running
• -s Run command immediately at start
• -q Run command quietly

when-changed provides the following environment variables:

• WHEN_CHANGED_EVENT: reflects the current event type that occurs. Could be either:

  • file_created
  • file_modified
  • file_moved
  • file_deleted

• WHEN_CHANGED_FILE: provides the full path of the file that has generated the event.

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