Disabling xdebug when running composer

Update: For Xdebug 3+:

As of Xdebug 3, it is possible to disable the Xdebug completely by setting the option xdebug.mode to off, or by setting the environment variable XDEBUG_MODE=off.

It is very easy to disable Xdebug just for composer, by aliasing composer.

alias composer='XDEBUG_MODE=off \composer'

alias composer='php -dxdebug.mode=off $(where composer | fgrep -v composer: |  head -1)'

You can add the alias to your $HOME/.bashrc to make it permanent.

Update: For Xdebug 1.3 - 3.0.0 :

The issue has been fixed in Composer 1.3. Update composer to the latest version by executing composer self-update, instead of trying the following workaround.

For Xdebug < 1.3

Here is my modification of @ezzatron's code. I have updated the script to detect ini files from phpinfo output.

#!/bin/sh

php_no_xdebug () {
    temporaryPath="$(mktemp -t php.XXXX).ini"

    # Using awk to ensure that files ending without newlines do not lead to configuration error
    php -i | grep "\.ini" | grep -o -e '\(/[a-z0-9._-]\+\)\+\.ini' | grep -v xdebug | xargs awk 'FNR==1{print ""}1' | grep -v xdebug > "$temporaryPath"
    
    php -n -c "$temporaryPath" "$@"
    rm -f "$temporaryPath"
}
    
php_no_xdebug /usr/local/bin/composer.phar $@
# On MacOS with composer installed using brew, comment previous line
# Install jq by executing `brew install jq` and uncomment following line.
# php_no_xdebug /usr/local/Cellar/composer/`brew info --json=v1 composer | jq -r '.[0].installed[0].version'`/libexec/composer.phar $@

This command will disable the PHP5 Xdebug module for CLI (and thus composer) :

sudo php5dismod -s cli xdebug

It removes the xdebug.ini symlink from /etc/php5/cli/conf.d/

This was suggested on http://blog.lorenzbausch.de/2015/02/10/php-disable-xdebug-for-cli/

Note that for Ubuntu 16.04 you probably need to run it like this:

sudo phpdismod -s cli xdebug

Disabling xdebug when running composer

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