functional.bash

#!/bin/bash -x

[ -z $1 ] && { echo "out?"; exit 1; }
[ -z $2 ] && { echo "author?"; exit 1; }

filter() {
  while read e
  do
    $1 $e
  done
}

join() {
  quote() {
    echo -en '"'$e'"\n'
  }

  filter quote | paste -sd$1
}

exists() {
  [ -f $1 ] && echo $1
}

targets() {
  gn ls $1 |
    grep '^//[^/]*:[^/]*tests$' |
      join ,
}

files() {
 git log --author "$1" --name-only --format= |
   grep -E '(cc|h)$' |

     filter exists | tee files.log |
      xargs -I% echo //% |
        join ,
}

json() {
cat <<EOF
{
  "files": [ $(files $2) ],
  "test_targets": [ $(targets $1) ],
  "additional_compile_targets": []
}
EOF
}

gn analyze $1 <(json $1 $2) /dev/stdout