Add Docker Compose setup

conjugate.js

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+// Generates the present-tense conjugation for every -er verb in verbs.db
+// and stores it in a `conjugations` table. Run: node conjugate.js
+//
+// Regular -er endings are computed; spelling-change verbs are overridden
+// so the data stays accurate.
+
+const { execFileSync } = require("child_process");
+const path = require("path");
+
+const DB = path.join(__dirname, "verbs.db");
+
+// Verbs whose present tense is NOT the plain regular pattern.
+const OVERRIDES = {
+  manger:    ["mange", "manges", "mange", "mangeons", "mangez", "mangent"],
+  voyager:   ["voyage", "voyages", "voyage", "voyageons", "voyagez", "voyagent"],
+  changer:   ["change", "changes", "change", "changeons", "changez", "changent"],
+  commencer: ["commence", "commences", "commence", "commençons", "commencez", "commencent"],
+  acheter:   ["achète", "achètes", "achète", "achetons", "achetez", "achètent"],
+  appeler:   ["appelle", "appelles", "appelle", "appelons", "appelez", "appellent"],
+  payer:     ["paie", "paies", "paie", "payons", "payez", "paient"],
+  nettoyer:  ["nettoie", "nettoies", "nettoie", "nettoyons", "nettoyez", "nettoient"],
+  répéter:   ["répète", "répètes", "répète", "répétons", "répétez", "répètent"],
+};
+
+function regular(inf) {
+  const stem = inf.slice(0, -2); // drop "er"
+  const nousStem = inf.endsWith("ger")
+    ? stem + "e"
+    : inf.endsWith("cer")
+      ? stem.slice(0, -1) + "ç"
+      : stem;
+  return [stem + "e", stem + "es", stem + "e", nousStem + "ons", stem + "ez", stem + "ent"];
+}
+
+function present(inf) {
+  return OVERRIDES[inf] || regular(inf);
+}
+
+function getInfinitives() {
+  const out = execFileSync("sqlite3", [DB, "SELECT infinitif FROM verbs ORDER BY infinitif;"], {
+    encoding: "utf8",
+  });
+  return out.split("\n").map((s) => s.trim()).filter(Boolean);
+}
+
+function esc(s) {
+  return s.replace(/'/g, "''");
+}
+
+function build() {
+  const verbs = getInfinitives();
+  let sql = `
+DROP TABLE IF EXISTS conjugations;
+CREATE TABLE conjugations (
+  infinitif TEXT NOT NULL,
+  tense     TEXT NOT NULL,
+  p1 TEXT, p2 TEXT, p3 TEXT, p4 TEXT, p5 TEXT, p6 TEXT,
+  PRIMARY KEY (infinitif, tense)
+);
+`;
+  for (const inf of verbs) {
+    const f = present(inf).map(esc);
+    sql += `INSERT INTO conjugations VALUES ('${esc(inf)}','présent','${f[0]}','${f[1]}','${f[2]}','${f[3]}','${f[4]}','${f[5]}');\n`;
+  }
+  execFileSync("sqlite3", [DB], { input: sql });
+  const n = execFileSync("sqlite3", [DB, "SELECT COUNT(*) FROM conjugations;"], { encoding: "utf8" }).trim();
+  console.log(`conjugations written: ${n} rows`);
+}
+
+build();