Magento 2 - Create composer patch without git commit

Magento 2 - Create composer patch without git commit

I use this method for creating patch, hope it helps . Let suppose you will modify this file

vendor/magento/module-customer/Block/CustomerData.php

Create a copy of that file whith your changes on it :

vendor/magento/module-customer/Block/CustomerDataModified.php

#################################
What you need to do is run this command :

diff -u CustomerData.php CustomerDataModified.php > diff.patch
############################3
Move diff.patch in your root under a directory, example Mypatches dir . Delete the file added CustomerDataModified.php since the patch is generated with the changes.

Here comes the tricky part , needs some manual modification now : When you open the diff.patch you will get something like this on the top :
########################3
--- CustomerData.php    2018-02-21 01:26:16.000000000 -0500
+++ CustomerDataModified.php    2019-01-03 03:57:47.326011737 -0500
Replace those line with this one :

diff --git a/Block/CustomerData.php b/Block/CustomerData.php
index 3ee2rd..8349152 111644
--- a/Block/CustomerData.php
+++ b/Block/CustomerData.php

#######################################
Next Step is modification of the composer.json in the root of your magento : Add the extra section (if you dont have one already)

"extra": {
        "magento-force": "override",
        "patches": {
            "magento/module-customer": {
                "some description abt issue applying this patch": "Mypatches/diff.patch"
            }
        }
    }
And there you go . Your patch is diff.patch (you can call whatever you like ) . Run composer install to apply that