#!/bin/sh
#
# Prepare git commit message:
#   - Add [ci skip] if the changes seem irrelevant for continuous integration

# Add [ci skip] to the commit message unless there are changes to files
# that are relevant for testing such as src/*, test/*, ledger3.texi, ...
function add_ci_skip()
{
  pattern="$1"; shift
  if [ $(git diff --cached --name-only | grep --count "$pattern") -eq 0 ]; then
    tempfile=$(mktemp $0.XXXXXX)
    cat - "$1" <<EOF > "$tempfile"

# It seems the changes to be committed are irrelevant for the continuous
# integration, therefore it will be skipped for this commit.
#
# If you still want continuous integration to run for this commit
# comment or remove the next line.
[ci skip]
EOF
    mv "$tempfile" "$1"
  fi
}

## MAIN
add_ci_skip '\(^src\|^test\|^doc/ledger3.texi\|CMakeLists.txt\)' "$@"