CODEWITHSUNDEEP
rubydirectorylistener
sameera207
sameera207

Reputation: 16629

Writing a file change listener in Ruby

I want to write a listener (ruby module) to identify a file creation inside a folder. My scenario is as follows

Where can I start on creating this Ruby module?

I'm using 'Ruby 1.8.7 (2010-06-23 patchlevel 299) [i686-linux]'.

Upvotes: 6

Views: 4581

Answers (1)

miku
miku

Reputation: 188054

There are a few small libraries, which you could utilize, learn from or build upon, e.g.

Agile development tool that monitors a directory tree, and triggers a user defined action whenever an observed file is modified. Its most typical use is continuous testing, and as such it is a more flexible alternative to autotest.

The directory watcher operates by scanning a directory at some interval and generating a list of files based on a user supplied glob pattern. As the file list changes from one interval to the next, events are generated and dispatched to registered observers. Three types of events are supported — added, modified, and removed.

Guard is a command line tool to easily handle events on files modifications (FSEvent / Inotify / Polling support).

This is a simple wrapper over the inotify Linux kernel subsystem for monitoring changes to files and directories. It uses the FFI gem to avoid having to compile a C extension.

Upvotes: 8

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