I would like to run a php script on a folder whenever content in that folder changes (a file is edited, or overwritten, or added or deleted).
The php script gets a hash code for each file in the folder, and writes all the lines in a hash.txt file (appending a line like hashcode:filename for each file, e.g. 2dbb8badb0925833c8ea03ffc941e3a0:file1_blabla.utf8).
After adding my user to /etc/incron.allow, I have edited my icrontab -e in the server, and added the following line:
/var/www/mydir/tests/ IN_ALL_EVENTS php -f /var/www/mydir/tests/mk_hash_list.php
The result: some kind of killer loop that collapse my server with an ever growing log, which shows lines like:
Jun 24 19:24:30 myserver incrond[22010]: (manuel) CMD (php -f /var/www/mydir/tests/hash_list.php)
Jun 24 19:24:30 myserver incrond[22010]: cannot fork process: Resource temporarily unavailable
Any tips? Is icrontab good for what I'm trying to do? Thanks.
The file to which the script appended data was written in the watched folder, creating an endless loop. The solution was to create a subfolder containing only the files that the script should analyze and keep both the script and the written file with the result outside of that watched subfolder.