Scraper: Error message of missing csv files now contains file name

doc/changelog.md

@@ -15,7 +15,7 @@ Syntax: `- short text describing the change _(Your Name)_`
 - _()_
 - _()_
 - _()_
-- _()_
+- Scraper: Error message of missing csv files now contains file name _(Christoph Schreiner)_
 - _()_
 - _()_
 - _()_

scraper/src/apply_overrides.js

@@ -1,20 +1,19 @@
 import fs from "fs";
 import path from "path";
 import { parse as json2csv } from "json2csv";
-import csv from "csvtojson";
-import { cleanUpJsonForCsv } from "./helpers/helpers.js";
+import { cleanUpJsonForCsv, readCsv } from "./helpers/helpers.js";
 import { applyOverride } from "./helpers/override.js";
 
 const deletionsFile = "00_DELETIONS.csv";
 
 async function loadMergedDataset() {
-  return csv().fromFile("data/mergedDatasets.csv");
+  return readCsv("data/mergedDatasets.csv");
 }
 
 async function applyDeletions(plants) {
   console.log(`[INFO] Deleting plants from data/overrides/${deletionsFile}`);
 
-  const deletePlants = await csv().fromFile(`data/overrides/${deletionsFile}`);
+  const deletePlants = await readCsv(`data/overrides/${deletionsFile}`);
 
   deletePlants.forEach((overridePlant) => {
     // find the plant

scraper/src/compare_datasets.js

@@ -1,7 +1,7 @@
 import fs from "fs";
 import { parse as json2csv } from "json2csv";
-import csv from "csvtojson";
 import columnMapping from "./column_mapping_permapeople.js";
+import { readCsv } from "./helpers/helpers.js";
 
 /**
  * Sanitize the column names of the csv files.
@@ -49,8 +49,8 @@ function sanitizeColumnNames(jsonArray) {
 async function compareDatabases() {
   const allPlants = [];
 
-  const practicalPlants = await csv().fromFile("data/detail.csv"); // Practical plants dataset
-  const permapeople = await csv().fromFile("data/permapeopleRawData.csv"); // Permapeople dataset
+  const practicalPlants = await readCsv("data/detail.csv"); // Practical plants dataset
+  const permapeople = await readCsv("data/permapeopleRawData.csv"); // Permapeople dataset
 
   sanitizeColumnNames(practicalPlants);
   sanitizeColumnNames(permapeople);

scraper/src/fetch_german_names.js

@@ -2,8 +2,7 @@ import axios from "axios";
 import axiosRetry from "axios-retry";
 import fs from "fs";
 import { parse as json2csv } from "json2csv";
-import csv from "csvtojson";
-import { capitalizeWords } from "./helpers/helpers.js";
+import { capitalizeWords, readCsv } from "./helpers/helpers.js";
 
 let GermanNamesFound = 0;
 
@@ -184,7 +183,7 @@ async function fetchGermanNames() {
     fs.mkdirSync("data/overrides");
   }
 
-  let plants = await csv().fromFile("data/mergedDatasets.csv");
+  let plants = await readCsv("data/mergedDatasets.csv");
 
   await fetchGermanNamesForPlantsConcurrent(plants);
 

scraper/src/helpers/helpers.js

@@ -1,3 +1,18 @@
+import csv from "csvtojson";
+
+/*
+ * Reads a CSV file and returns a JSON array.
+ * Logs filename on error and exits the process.
+ */
+async function readCsv(file) {
+  try {
+    return await csv().fromFile(file);
+  } catch (error) {
+    console.error(`[ERROR] Error reading CSV file '${file}': ${error}`);
+    process.exit(1);
+  }
+}
+
 /**
  * Capitalizes the first character of every word in a string.
  *
@@ -133,4 +148,5 @@ export {
   capitalizeWords,
   cleanUpJsonForCsv,
   processMeasurement,
+  readCsv,
 };

scraper/src/helpers/override.js

@@ -1,4 +1,4 @@
-import csv from "csvtojson";
+import { readCsv } from "./helpers.js";
 
 /**
  * Apply the given override file to the plants
@@ -11,7 +11,7 @@ import csv from "csvtojson";
 async function applyOverride(plants, file) {
   console.log(`[INFO] Applying override ${file}`);
 
-  const overridePlants = await csv().fromFile(file);
+  const overridePlants = await readCsv(file);
 
   overridePlants.forEach((overridePlant) => {
     // find the plant

scraper/src/insert_plant_relations.js

@@ -1,7 +1,7 @@
 import pgPromise from "pg-promise";
-import csv from "csvtojson";
 
 import { config } from "dotenv";
+import { readCsv } from "./helpers/helpers.js";
 
 config({
   path: ".env.local",
@@ -97,8 +97,8 @@ async function start(companionsFilePath, antagonistFilePath) {
     "[INFO] Starting the insertion of plant relations into database."
   );
 
-  const companionsJsonArray = await csv().fromFile(companionsFilePath);
-  const antagonistJsonArray = await csv().fromFile(antagonistFilePath);
+  const companionsJsonArray = await readCsv(companionsFilePath);
+  const antagonistJsonArray = await readCsv(antagonistFilePath);
   const uniquePlantNameIdMap = new Map();
 
   //fill map with plantnames from the csv

scraper/src/insert_plants.js

@@ -1,7 +1,6 @@
 import pgPromise from "pg-promise";
-import csv from "csvtojson";
 import dbPlantsColumns from "./helpers/dp_plants_columns.js";
-import { sanitizeColumnNames } from "./helpers/helpers.js";
+import { sanitizeColumnNames, readCsv } from "./helpers/helpers.js";
 
 import { config } from "dotenv";
 
@@ -98,7 +97,7 @@ function sanitizeValues(jsonArray) {
 async function insertPlants(fileName) {
   console.log("[INFO] Starting the insertion of plants into database.");
 
-  const jsonArray = await csv().fromFile(fileName);
+  const jsonArray = await readCsv(fileName);
 
   sanitizeColumnNames(jsonArray);
 

scraper/src/merge_datasets.js

@@ -1,12 +1,12 @@
 import fs from "fs";
 import { parse as json2csv } from "json2csv";
-import csv from "csvtojson";
 import permapeopleColumnMapping from "./helpers/column_mapping_permapeople.js";
 import {
   sanitizeColumnNames,
   processMeasurement,
   getSoilPH,
   cleanUpJsonForCsv,
+  readCsv,
 } from "./helpers/helpers.js";
 
 /**
@@ -153,9 +153,9 @@ async function mergeDatasets() {
 
   let allPlants = [];
 
-  let practicalPlants = await csv().fromFile("data/detail.csv"); // Practical plants dataset
-  let permapeople = await csv().fromFile("data/permapeopleRawData.csv"); // Permapeople dataset
-  let reinsaat = await csv().fromFile("data/reinsaatRawData.csv"); // Reinsaat dataset
+  let practicalPlants = await readCsv("data/detail.csv"); // Practical plants dataset
+  let permapeople = await readCsv("data/permapeopleRawData.csv"); // Permapeople dataset
+  let reinsaat = await readCsv("data/reinsaatRawData.csv"); // Reinsaat dataset
 
   sanitizeColumnNames(practicalPlants, "practicalplants");
   sanitizeColumnNames(permapeople, "permapeople");

scraper/src/merge_german_names.js

@@ -1,13 +1,12 @@
 import fs from "fs";
 import { parse as json2csv } from "json2csv";
-import csv from "csvtojson";
-import { cleanUpJsonForCsv } from "./helpers/helpers.js";
+import { cleanUpJsonForCsv, readCsv } from "./helpers/helpers.js";
 import { applyOverride } from "./helpers/override.js";
 
 const germanCommonNames = "data/germanCommonNames.csv";
 
 async function loadMergedDataset() {
-  return csv().fromFile("data/mergedDatasets.csv");
+  return readCsv("data/mergedDatasets.csv");
 }
 
 async function applyGermanNames(plants) {

scraper/src/merge_reinsaat.js

@@ -1,7 +1,7 @@
 import fs from "fs";
 import { parse as json2csv } from "json2csv";
-import csv from "csvtojson";
 import mapping from "./helpers/column_mapping_reinsaat.js";
+import { readCsv } from "./helpers/helpers.js";
 
 const renameColumns = (plants) => {
   return plants.map((plant) => {
@@ -98,8 +98,8 @@ const renameCategory = (plants, lang) => {
 async function mergeDatasets() {
   let allPlants = [];
 
-  let reinsaatRawDataEN = await csv().fromFile("data/reinsaatRawDataEN.csv");
-  let reinsaatRawDataDE = await csv().fromFile("data/reinsaatRawDataDE.csv");
+  let reinsaatRawDataEN = await readCsv("data/reinsaatRawDataEN.csv");
+  let reinsaatRawDataDE = await readCsv("data/reinsaatRawDataDE.csv");
 
   reinsaatRawDataEN = renameCategory(reinsaatRawDataEN, "EN");
   reinsaatRawDataDE = renameCategory(reinsaatRawDataDE, "DE");