SVN pre-commit hook script to check for svn:needs-lock

pre-commit

#!/bin/bash

# This is a pre-commit hook script that checks files for the svn:needs-lock
# property. If the property is not set, the commit will fail with an error
# message that explains what must be done.

# Adapted from: http://stackoverflow.com/a/26037418/545794

# In order to use this script, copy it to:
# <svn-repos-data-dir>/<repos>/hooks/pre-commit

SVNLOOK=/usr/bin/svnlook
REPOS="$1"
TXN="$2"
FILES_WITHOUT_LOCK=""

# Exit on all errors.
set -e

while read REPOS_PATH; do

  # Check for files that are Added, Modified, or Updated
  if [[ $REPOS_PATH =~ (A|M|U)[[:blank:]]{3}(.*)\.(.*) ]]; then

    # Get the file name.
    if [ ${#BASH_REMATCH[*]} -ge 2 ]; then
      FILENAME=${BASH_REMATCH[2]}.${BASH_REMATCH[3]};

      # If a file does not have the property set, append its name to the files
      # that need to be changed.
      if ! ($SVNLOOK propget -t "$TXN" "$REPOS" svn:needs-lock "$FILENAME" &> /dev/null); then
        FILES_WITHOUT_LOCK="$FILES_WITHOUT_LOCK '$FILENAME'"
      fi
    fi
  fi

done <<< "$($SVNLOOK changed -t "$TXN" "$REPOS")"
# The <<< avoids piping to a child process, which make it more difficult to
# share variables. See http://stackoverflow.com/a/124349/545794

if [ -z "$FILES_WITHOUT_LOCK" ]; then
  # All checks passed, so allow the commit.
  exit 0
else
  # If there are any file names, we exit with a failure code and error message.
  echo "" >&2
  echo "Some files you are committing do not have the svn:needs-lock property set." >&2
  echo "Do the following and re-commit:" >&2
  echo "" >&2
  echo "  svn propset svn:needs-lock '*'$FILES_WITHOUT_LOCK" >&2
  exit 1
fi

The above script was adapted from here.