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13 changed files with 4194 additions and 47 deletions
19
.github/workflows/container.yml
vendored
19
.github/workflows/container.yml
vendored
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@ -14,16 +14,19 @@ jobs:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v3
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- uses: oven-sh/setup-bun@v1
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- uses: pnpm/action-setup@v2
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with:
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version: 8
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- name: Use Node.js 20
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uses: actions/setup-node@v3
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with:
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node-version: 20
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cache: 'pnpm'
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- name: Install dependencies
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run: pnpm install
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- run: bun install
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- run: pnpm check
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working-directory: ./sitio
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- run: bun check
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working-directory: ./sitio
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- run: bun install
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working-directory: ./scraper
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- run: bun check
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working-directory: ./scraper
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build-and-push-sitio:
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needs: check
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BIN
bun.lockb
BIN
bun.lockb
Binary file not shown.
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@ -1,5 +1,6 @@
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import { Database } from "bun:sqlite";
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import { drizzle } from "drizzle-orm/bun-sqlite";
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// @ts-check
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import Database from "better-sqlite3";
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import { drizzle } from "drizzle-orm/better-sqlite3";
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import { DB_PATH } from "./drizzle.config.js";
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import { migrateDb } from "./migrate.js";
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import * as schema from "./schema.js";
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@ -1,11 +1,10 @@
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import type { Config } from "drizzle-kit";
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export const DB_PATH = process.env.DB_PATH ?? "../scraper/sqlite.db";
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/** @type { import("drizzle-kit").Config } */
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export default {
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schema: "./schema.ts",
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out: "./drizzle",
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dbCredentials: {
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url: DB_PATH,
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},
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} satisfies Config;
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};
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@ -1,7 +1,8 @@
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import Database from "bun:sqlite";
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// @ts-check
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import Database from "better-sqlite3";
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import { join, dirname } from "node:path";
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import { drizzle } from "drizzle-orm/bun-sqlite";
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import { migrate } from "drizzle-orm/bun-sqlite/migrator";
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import { drizzle } from "drizzle-orm/better-sqlite3";
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import { migrate } from "drizzle-orm/better-sqlite3/migrator";
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import * as schema from "./schema.js";
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import { DB_PATH } from "./drizzle.config.js";
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@ -11,7 +12,7 @@ export function migrateDb() {
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const db = drizzle(sqlite, { schema });
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migrate(db, { migrationsFolder: join(dirname(url.pathname), "drizzle") });
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sqlite.run(`
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sqlite.exec(`
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pragma journal_mode = WAL;
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PRAGMA synchronous = NORMAL;
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`);
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@ -5,16 +5,19 @@
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"description": "",
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"main": "index.js",
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"scripts": {
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"generate": "drizzle-kit generate:sqlite"
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"generate": "drizzle-kit generate:sqlite",
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"migrate": "node db.js"
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},
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"keywords": [],
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"author": "",
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"license": "ISC",
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"dependencies": {
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"better-sqlite3": "^9.2.2",
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"drizzle-orm": "^0.29.1"
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},
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"devDependencies": {
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"@types/bun": "^1.0.0",
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"@types/better-sqlite3": "^7.6.8",
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"@types/node": "^20.10.6",
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"drizzle-kit": "^0.20.7"
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}
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}
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@ -1,3 +1,4 @@
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// @ts-check
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import { index, integer, sqliteTable, text } from "drizzle-orm/sqlite-core";
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export const precios = sqliteTable(
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return {
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preciosEanIdx: index("precios_ean_idx").on(precios.ean),
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};
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}
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},
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);
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export type Precio = typeof precios.$inferSelect;
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/** @typedef {typeof precios.$inferSelect} Precio */
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export const productoUrls = sqliteTable("producto_urls", {
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id: integer("id", { mode: "number" }).primaryKey({ autoIncrement: true }),
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lastSeen: integer("last_seen", { mode: "timestamp" }).notNull(),
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});
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export type ProductUrl = typeof productoUrls.$inferSelect;
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/** @typedef {typeof productoUrls.$inferSelect} ProductUrl */
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10
package.json
10
package.json
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@ -1,10 +0,0 @@
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{
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"name": "preciazo",
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"private": true,
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"workspaces": [
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"link-scrapers",
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"scraper",
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"sitio",
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"db-datos"
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]
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}
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4136
pnpm-lock.yaml
Normal file
4136
pnpm-lock.yaml
Normal file
File diff suppressed because it is too large
Load diff
5
pnpm-workspace.yaml
Normal file
5
pnpm-workspace.yaml
Normal file
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@ -0,0 +1,5 @@
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packages:
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- link-scrapers
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- scraper
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- sitio
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- db-datos
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33
readme.md
33
readme.md
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@ -2,31 +2,40 @@
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scrapeo "masivo" de precios y datos en supermercados argentinos
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## componentes (en orden de proceso)
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## componentes
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- los link scrapers ([link-scrapers/](./link-scrapers/)) crean listas de links a productos para scrapear
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### scraper-rs
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(no hace falta correrlos porque ya hay listas armadas en [data/](./data/))
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el [scraper](./scraper-rs/) busca links de productos a scrapear, descarga todos los links, extrae varios datos y los guarda en una base de datos SQLite (definida en [db-datos](./db-datos/schema.ts)).
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- el [scraper](./scraper/) descarga todos los links, extrayendo varios datos y guardandolos en una base de datos SQLite (definida en [db-datos](./db-datos/schema.ts))
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- el [sitio](./sitio/) renderiza páginas a partir de la base de datos y hace gráficos lindos
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(antes había un scraper escrito en JavaScript, pero por problemas de _reliability_ lo reescribí en Rust (?))
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### sitio
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el [sitio](./sitio/) renderiza páginas a partir de la base de datos y hace gráficos lindos.
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## setup
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hay que instalar [Bun](https://bun.sh/), que lo estoy usando porque hacía que el scraper corra más rápido. quizás en el futuro lo reemplace con good old Node.js.
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para el schema de la base de datos y el sitio, es necesario [Node.js](https://nodejs.org/) y [pnpm](https://pnpm.io/). para el scraper, es necesario [Rust](https://www.rust-lang.org/) estable.
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crea la base de datos:
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```
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cd db-datos/
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pnpm install
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pnpm migrate
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```
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después, escrapea un sample de productos de Carrefour a una BD:
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```
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cd scraper/
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bun install
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bun cli.ts scrap ./data/samples/Carrefour.50.txt
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cd ../scraper-rs/
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cargo run -- fetch-list ../data/samples/Carrefour.50.txt
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```
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ahora miralo en el sitio:
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```
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cd sitio/
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bun install
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bun dev
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cd ../sitio/
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pnpm install
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pnpm dev
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```
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@ -24,7 +24,6 @@
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"zod": "^3.22.4"
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},
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"devDependencies": {
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"@types/bun": "^1.0.0",
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"typescript": "^5.3.3"
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}
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}
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@ -5,8 +5,8 @@
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"scripts": {
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"dev": "vite dev",
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"build": "vite build",
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"build:container": "podman build -t gitea.nulo.in/nulo/preciazo/sitio -f ./Containerfile ..",
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"push:container": "bun build:container && podman push gitea.nulo.in/nulo/preciazo/sitio",
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"build:container": "podman build -t gitea.nulo.in/nulo/preciazo/sitio -f ./Dockerfile ..",
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"push:container": "pnpm build:container && podman push gitea.nulo.in/nulo/preciazo/sitio",
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"preview": "vite preview",
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"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
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"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
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