build-experiment-tool/data-generator.sh

#!/bin/bash
# Copyright (c) 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Generates JSON data given the set of features written in the output directory.
# Call as ./data-generator.sh /path/to/input [/path/to/output]

INPUT_LOCATION=$1
DATA_FILE=${2:-"$(dirname $0)/workspaces/data.js"}

# Print the feature name to stdout as json key.
function print-feature-name {
  featurename=$(basename $1 | sed 's/.feature//')
  printf "    '%s': " $featurename
}

# Prints the given feature to stdout as a json encoded list.
function print-feature {
  cat $1 | (
    # Read each line, and turn it into a comma seperated value for the list.
    while read -r line; do
      printf '%s,' "$line"
    done
  ) | sed -e 's/,$/],\n/' -e 's/^/[/'
}
export -f print-feature

(
cat <<EOF
GLOBAL_JSON_DATA = JSON.stringify({
  'labels': $(print-feature $INPUT_LOCATION/config.feature)
  'features': {
    $(
      for feature in $INPUT_LOCATION/*.feature; do
        print-feature-name $feature
        print-feature $feature
      done
    )
  }
});
EOF
)> $DATA_FILE