github.com/sijibomii/docker@v0.0.0-20231230191044-5cf6ca554647/hack/make/validate-dco (about)

     1  #!/bin/bash
     2  
     3  source "${MAKEDIR}/.validate"
     4  
     5  adds=$(validate_diff --numstat | awk '{ s += $1 } END { print s }')
     6  dels=$(validate_diff --numstat | awk '{ s += $2 } END { print s }')
     7  #notDocs="$(validate_diff --numstat | awk '$3 !~ /^docs\// { print $3 }')"
     8  
     9  : ${adds:=0}
    10  : ${dels:=0}
    11  
    12  # "Username may only contain alphanumeric characters or dashes and cannot begin with a dash"
    13  githubUsernameRegex='[a-zA-Z0-9][a-zA-Z0-9-]+'
    14  
    15  # https://github.com/docker/docker/blob/master/CONTRIBUTING.md#sign-your-work
    16  dcoPrefix='Signed-off-by:'
    17  dcoRegex="^(Docker-DCO-1.1-)?$dcoPrefix ([^<]+) <([^<>@]+@[^<>]+)>( \\(github: ($githubUsernameRegex)\\))?$"
    18  
    19  check_dco() {
    20  	grep -qE "$dcoRegex"
    21  }
    22  
    23  if [ $adds -eq 0 -a $dels -eq 0 ]; then
    24  	echo '0 adds, 0 deletions; nothing to validate! :)'
    25  else
    26  	commits=( $(validate_log --format='format:%H%n') )
    27  	badCommits=()
    28  	for commit in "${commits[@]}"; do
    29  		if [ -z "$(git log -1 --format='format:' --name-status "$commit")" ]; then
    30  			# no content (ie, Merge commit, etc)
    31  			continue
    32  		fi
    33  		if ! git log -1 --format='format:%B' "$commit" | check_dco; then
    34  			badCommits+=( "$commit" )
    35  		fi
    36  	done
    37  	if [ ${#badCommits[@]} -eq 0 ]; then
    38  		echo "Congratulations!  All commits are properly signed with the DCO!"
    39  	else
    40  		{
    41  			echo "These commits do not have a proper '$dcoPrefix' marker:"
    42  			for commit in "${badCommits[@]}"; do
    43  				echo " - $commit"
    44  			done
    45  			echo
    46  			echo 'Please amend each commit to include a properly formatted DCO marker.'
    47  			echo
    48  			echo 'Visit the following URL for information about the Docker DCO:'
    49  			echo ' https://github.com/docker/docker/blob/master/CONTRIBUTING.md#sign-your-work'
    50  			echo
    51  		} >&2
    52  		false
    53  	fi
    54  fi