Git hook on bash to check prefix

Question

I need some help with a bash script that automatically add prefix in commit -m message ,it's not a server side ,just repo, i need to add message "User:..." , and if a user type commit message name for example "Jhon" , it will be User:Jhon . Maybe who can help to write a script for it ?

Answer 1

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Here's what I would do.

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1. Write a script (e.g. prefix_commit.sh) that looks like this:

   #!/bin/bash
   git commit -m User:"$1"
   

   Note:

   • Using git commit -m "User:$1" will also work here.

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2. Make the script executable (you only need to do this once):

   $ chmod +x ./prefix_commit.sh
   

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3. Call the script from the command line and pass your commit message like so:

   $ ./prefix_commit.sh 'Sample commit message'
   

   Note:

   • Be sure to use single quotes around your commit message if you plan on writing messages with multiple words.

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Passing arguments to a bash script

• Arguments can be received in a bash script or function like so:

  $1 # first argument
  $2 # second argument
  $3 # third argument
  
  ### $4, $5, $6, $7 ... etc
  

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• So let's say I have a script that's called echo_my_args.sh that echoes out three arguments:

  #!/bin/bash
  echo $1
  echo $2
  echo $3
  

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• I can pass three arguments to the script and see them echoed out:

  $ ./echo_my_args.sh 'my first arg' 'my second arg' 'my third arg'
  my first arg
  my second arg
  my third arg
  

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• Note here again that the argument must use single quotes if it has multiple words. There is no need for single quotes if you pass a single word argument:

  $ ./echo_my_args.sh first second third
  first
  second
  third
  

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• Here's some more information about how to pass arguments to a bash script.