github.com/shravanasati/hydra@v1.0.1-0.20240122045627-1082d2ed50d2/hydra/hooks/commit-msg.sample (about)

     1  #!/bin/sh
     2  #
     3  # An example hook script to check the commit log message.
     4  # Called by "git commit" with one argument, the name of the file
     5  # that has the commit message.  The hook should exit with non-zero
     6  # status after issuing an appropriate message if it wants to stop the
     7  # commit.  The hook is allowed to edit the commit message file.
     8  #
     9  # To enable this hook, rename this file to "commit-msg".
    10  
    11  # Uncomment the below to add a Signed-off-by line to the message.
    12  # Doing this in a hook is a bad idea in general, but the prepare-commit-msg
    13  # hook is more suited to it.
    14  #
    15  # SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
    16  # grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"
    17  
    18  # This example catches duplicate Signed-off-by lines.
    19  
    20  test "" = "$(grep '^Signed-off-by: ' "$1" |
    21  	 sort | uniq -c | sed -e '/^[ 	]*1[ 	]/d')" || {
    22  	echo >&2 Duplicate Signed-off-by lines.
    23  	exit 1
    24  }