Generates a Mapeo config defaults.json based on the items within the presets folder and their geometry fields. Execute from the Mapeo configuration project's folder root.

generate-defaults.sh

#!/bin/bash

# Path to the presets folder
presetsFolder="./presets"

# Path to defaults.json
defaultsPath="./defaults.json"

# Temp file for jq output
tempFile=$(mktemp)

# Iterate over each file in the presets folder
for presetFile in $presetsFolder/*; do
  # Get the preset name without the file extension
  presetName=$(basename "$presetFile" .json)

  # Get the geometry types from the preset file
  geometries=$(jq -r '.geometry[]' "$presetFile")

  # Iterate over each geometry type
  for geometry in $geometries; do
    # Check if the preset name already exists in the corresponding array in defaults.json
    if ! jq --arg presetName "$presetName" -e ".${geometry} | index(\$presetName)" $defaultsPath > /dev/null; then
      # If not, add the preset name to the array
      jq --arg presetName "$presetName" ".${geometry} += [\$presetName]" $defaultsPath > "$tempFile" && mv "$tempFile" $defaultsPath
    fi
  done
done

# Iterate over each geometry type in defaults.json
for geometry in area line point vertex relation; do
  # Get the list of presets for the current geometry type
  presets=$(jq -r ".${geometry}[]" $defaultsPath)

  # Iterate over each preset
  for preset in $presets; do
    # Check if the preset file exists in the presets folder
    if [ ! -f "$presetsFolder/$preset.json" ]; then
      # If not, remove the preset from the array
      jq --arg preset "$preset" ".${geometry} -= [\$preset]" $defaultsPath > "$tempFile" && mv "$tempFile" $defaultsPath
    fi
  done
done

generateDefaults.js

const fs = require('fs');
const path = require('path');

// Path to the presets folder
const presetsFolder = path.join(__dirname, 'presets');

// Read the current contents of defaults.json
const defaultsPath = path.join(__dirname, 'defaults.json');
const data = JSON.parse(fs.readFileSync(defaultsPath, 'utf8'));

// Retrieve the list of preset files from the presets folder
const presetFiles = fs.readdirSync(presetsFolder);

presetFiles.forEach(file => {
  // Read the preset file
  const presetPath = path.join(presetsFolder, file);
  const preset = JSON.parse(fs.readFileSync(presetPath, 'utf8'));

  // Get the geometry type(s) from the preset
  const geometries = preset.geometry;

  geometries.forEach(geometry => {
    // Get the preset name without the file extension
    const presetName = path.parse(file).name;

    // Check if the preset name already exists in the corresponding array in defaults.json
    if (!data[geometry].includes(presetName)) {
      // If not, add the preset name to the array
      data[geometry].push(presetName);
    }
  });
});

// Iterate over each geometry type in defaults.json
for (const geometry in data) {
  // Get the list of presets for the current geometry type
  const presets = data[geometry];

  // Iterate over each preset
  for (let i = presets.length - 1; i >= 0; i--) {
    const preset = presets[i];

    // Check if the preset file exists in the presets folder
    if (!fs.existsSync(path.join(presetsFolder, `${preset}.json`))) {
      // If not, remove the preset from the array
      presets.splice(i, 1);
    }
  }
}

// Write the updated contents back to defaults.json
fs.writeFileSync(defaultsPath, JSON.stringify(data, null, 4));