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13 changed files with 47 additions and 4194 deletions

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@ -14,19 +14,16 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: pnpm/action-setup@v2
with:
version: 8
- name: Use Node.js 20
uses: actions/setup-node@v3
with:
node-version: 20
cache: 'pnpm'
- name: Install dependencies
run: pnpm install
- uses: oven-sh/setup-bun@v1
- run: pnpm check
- run: bun install
working-directory: ./sitio
- run: bun check
working-directory: ./sitio
- run: bun install
working-directory: ./scraper
- run: bun check
working-directory: ./scraper
build-and-push-sitio:
needs: check

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@ -1,6 +1,5 @@
// @ts-check
import Database from "better-sqlite3";
import { drizzle } from "drizzle-orm/better-sqlite3";
import { Database } from "bun:sqlite";
import { drizzle } from "drizzle-orm/bun-sqlite";
import { DB_PATH } from "./drizzle.config.js";
import { migrateDb } from "./migrate.js";
import * as schema from "./schema.js";

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@ -1,10 +1,11 @@
import type { Config } from "drizzle-kit";
export const DB_PATH = process.env.DB_PATH ?? "../scraper/sqlite.db";
/** @type { import("drizzle-kit").Config } */
export default {
schema: "./schema.ts",
out: "./drizzle",
dbCredentials: {
url: DB_PATH,
},
};
} satisfies Config;

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@ -1,8 +1,7 @@
// @ts-check
import Database from "better-sqlite3";
import Database from "bun:sqlite";
import { join, dirname } from "node:path";
import { drizzle } from "drizzle-orm/better-sqlite3";
import { migrate } from "drizzle-orm/better-sqlite3/migrator";
import { drizzle } from "drizzle-orm/bun-sqlite";
import { migrate } from "drizzle-orm/bun-sqlite/migrator";
import * as schema from "./schema.js";
import { DB_PATH } from "./drizzle.config.js";
@ -12,7 +11,7 @@ export function migrateDb() {
const db = drizzle(sqlite, { schema });
migrate(db, { migrationsFolder: join(dirname(url.pathname), "drizzle") });
sqlite.exec(`
sqlite.run(`
pragma journal_mode = WAL;
PRAGMA synchronous = NORMAL;
`);

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@ -5,19 +5,16 @@
"description": "",
"main": "index.js",
"scripts": {
"generate": "drizzle-kit generate:sqlite",
"migrate": "node db.js"
"generate": "drizzle-kit generate:sqlite"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"better-sqlite3": "^9.2.2",
"drizzle-orm": "^0.29.1"
},
"devDependencies": {
"@types/better-sqlite3": "^7.6.8",
"@types/node": "^20.10.6",
"@types/bun": "^1.0.0",
"drizzle-kit": "^0.20.7"
}
}

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@ -1,4 +1,3 @@
// @ts-check
import { index, integer, sqliteTable, text } from "drizzle-orm/sqlite-core";
export const precios = sqliteTable(
@ -19,10 +18,10 @@ export const precios = sqliteTable(
return {
preciosEanIdx: index("precios_ean_idx").on(precios.ean),
};
},
}
);
/** @typedef {typeof precios.$inferSelect} Precio */
export type Precio = typeof precios.$inferSelect;
export const productoUrls = sqliteTable("producto_urls", {
id: integer("id", { mode: "number" }).primaryKey({ autoIncrement: true }),
@ -31,4 +30,4 @@ export const productoUrls = sqliteTable("producto_urls", {
lastSeen: integer("last_seen", { mode: "timestamp" }).notNull(),
});
/** @typedef {typeof productoUrls.$inferSelect} ProductUrl */
export type ProductUrl = typeof productoUrls.$inferSelect;

10
package.json Normal file
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@ -0,0 +1,10 @@
{
"name": "preciazo",
"private": true,
"workspaces": [
"link-scrapers",
"scraper",
"sitio",
"db-datos"
]
}

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@ -1,5 +0,0 @@
packages:
- link-scrapers
- scraper
- sitio
- db-datos

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@ -2,40 +2,31 @@
scrapeo "masivo" de precios y datos en supermercados argentinos
## componentes
## componentes (en orden de proceso)
### scraper-rs
- los link scrapers ([link-scrapers/](./link-scrapers/)) crean listas de links a productos para scrapear
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)).
(no hace falta correrlos porque ya hay listas armadas en [data/](./data/))
(antes había un scraper escrito en JavaScript, pero por problemas de _reliability_ lo reescribí en Rust (?))
### sitio
el [sitio](./sitio/) renderiza páginas a partir de la base de datos y hace gráficos lindos.
- 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))
- el [sitio](./sitio/) renderiza páginas a partir de la base de datos y hace gráficos lindos
## setup
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.
crea la base de datos:
```
cd db-datos/
pnpm install
pnpm migrate
```
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.
después, escrapea un sample de productos de Carrefour a una BD:
```
cd ../scraper-rs/
cargo run -- fetch-list ../data/samples/Carrefour.50.txt
cd scraper/
bun install
bun cli.ts scrap ./data/samples/Carrefour.50.txt
```
ahora miralo en el sitio:
```
cd ../sitio/
pnpm install
pnpm dev
cd sitio/
bun install
bun dev
```

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@ -24,6 +24,7 @@
"zod": "^3.22.4"
},
"devDependencies": {
"@types/bun": "^1.0.0",
"typescript": "^5.3.3"
}
}

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@ -5,8 +5,8 @@
"scripts": {
"dev": "vite dev",
"build": "vite build",
"build:container": "podman build -t gitea.nulo.in/nulo/preciazo/sitio -f ./Dockerfile ..",
"push:container": "pnpm build:container && podman push gitea.nulo.in/nulo/preciazo/sitio",
"build:container": "podman build -t gitea.nulo.in/nulo/preciazo/sitio -f ./Containerfile ..",
"push:container": "bun build:container && podman push gitea.nulo.in/nulo/preciazo/sitio",
"preview": "vite preview",
"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",