fix(build): remove stale page-data files (#26937)

* test(artifacts): assert (un)expected page-data/html files

* fix(gatsby): delete stale page-data on builds

* remove deepFilter option

it could cause very weird edge cases if user actually have pages with
`/sq/d/` prefix and we already check for `page-data.json` file
(static query will have [hash].json names)

* handle fs traversal errors (kind of)

integration-tests/artifacts/__tests__/index.js

@@ -0,0 +1,335 @@
+const { spawn } = require(`child_process`)
+const path = require(`path`)
+const { murmurhash } = require(`babel-plugin-remove-graphql-queries`)
+const { readPageData } = require(`gatsby/dist/utils/page-data`)
+const { stripIgnoredCharacters } = require(`gatsby/graphql`)
+const fs = require(`fs`)
+
+jest.setTimeout(100000)
+
+const publicDir = path.join(process.cwd(), `public`)
+
+const gatsbyBin = path.join(`node_modules`, `.bin`, `gatsby`)
+
+const titleQuery = `
+  {
+    site {
+      siteMetadata {
+        title
+      }
+    }
+  }
+`
+
+const authorQuery = `
+  {
+    site {
+      siteMetadata {
+        author
+      }
+    }
+  }
+`
+
+const githubQuery = `
+  {
+    site {
+      siteMetadata {
+        github
+      }
+    }
+  }
+`
+
+const moreInfoQuery = `
+  {
+    site {
+      siteMetadata {
+        moreInfo
+      }
+    }
+  }
+`
+
+function hashQuery(query) {
+  const text = stripIgnoredCharacters(query)
+  const hash = murmurhash(text, `abc`)
+  return String(hash)
+}
+
+const globalQueries = [githubQuery, moreInfoQuery]
+
+const pagePathToFilePath = {
+  html: pagePath => path.join(`public`, pagePath, `index.html`),
+  "page-data": pagePath =>
+    path.join(
+      `public`,
+      `page-data`,
+      pagePath === `/` ? `index` : pagePath,
+      `page-data.json`
+    ),
+}
+
+function assertFileExistenceForPagePaths({ pagePaths, type, shouldExist }) {
+  if (![`html`, `page-data`].includes(type)) {
+    throw new Error(`Unexpected type`)
+  }
+
+  test.each(pagePaths)(
+    `${type} file for "%s" ${shouldExist ? `exists` : `DOESN'T exist`}`,
+    async pagePath => {
+      const filePath = pagePathToFilePath[type](pagePath)
+      const exists = await new Promise(resolve => {
+        fs.stat(filePath, err => {
+          resolve(err === null)
+        })
+      })
+
+      expect(exists).toBe(shouldExist)
+    }
+  )
+}
+
+beforeAll(async done => {
+  const gatsbyCleanProcess = spawn(gatsbyBin, [`clean`], {
+    stdio: [`inherit`, `inherit`, `inherit`, `inherit`],
+    env: {
+      ...process.env,
+      NODE_ENV: `production`,
+    },
+  })
+
+  gatsbyCleanProcess.on(`exit`, exitCode => {
+    done()
+  })
+})
+
+describe(`First run`, () => {
+  beforeAll(async done => {
+    const gatsbyProcess = spawn(gatsbyBin, [`build`], {
+      stdio: [`inherit`, `inherit`, `inherit`, `inherit`],
+      env: {
+        ...process.env,
+        NODE_ENV: `production`,
+        RUN_FOR_STALE_PAGE_ARTIFICATS: `1`,
+      },
+    })
+
+    gatsbyProcess.on(`exit`, exitCode => {
+      done()
+    })
+  })
+
+  describe(`Static Queries`, () => {
+    test(`are written correctly when inline`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/inline/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly when imported`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/import/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly when dynamically imported`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/dynamic/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly in jsx`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/jsx/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly in tsx`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/tsx/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly in typescript`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/typescript/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly when nesting imports`, async () => {
+      const queries = [titleQuery, authorQuery, ...globalQueries]
+      const pagePath = `/import-import/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly when nesting dynamic imports`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/dynamic-dynamic/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly when nesting a dynamic import in a regular import`, async () => {
+      const queries = [titleQuery, authorQuery, ...globalQueries]
+      const pagePath = `/import-dynamic/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly when nesting a regular import in a dynamic import`, async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/dynamic-import/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test("are written correctly with circular dependency", async () => {
+      const queries = [titleQuery, ...globalQueries]
+      const pagePath = `/circular-dep/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+
+    test(`are written correctly when using gatsby-browser`, async () => {
+      const queries = [...globalQueries]
+      const pagePath = `/gatsby-browser/`
+
+      const { staticQueryHashes } = await readPageData(publicDir, pagePath)
+
+      expect(staticQueryHashes.sort()).toEqual(queries.map(hashQuery).sort())
+    })
+  })
+
+  const expectedPages = [`stale-pages/stable`, `stale-pages/only-in-first`]
+  const unexpectedPages = [`stale-pages/only-in-second`]
+
+  describe(`html files`, () => {
+    const type = `html`
+
+    describe(`should have expected html files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: expectedPages,
+        type,
+        shouldExist: true,
+      })
+    })
+
+    describe(`shouldn't have unexpected html files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: unexpectedPages,
+        type,
+        shouldExist: false,
+      })
+    })
+  })
+
+  describe(`page-data files`, () => {
+    const type = `page-data`
+
+    describe(`should have expected page-data files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: expectedPages,
+        type,
+        shouldExist: true,
+      })
+    })
+
+    describe(`shouldn't have unexpected page-data files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: unexpectedPages,
+        type,
+        shouldExist: false,
+      })
+    })
+  })
+})
+
+describe(`Second run`, () => {
+  const expectedPages = [`stale-pages/stable`, `stale-pages/only-in-second`]
+  const unexpectedPages = [`stale-pages/only-in-first`]
+
+  beforeAll(async done => {
+    const gatsbyProcess = spawn(gatsbyBin, [`build`], {
+      stdio: [`inherit`, `inherit`, `inherit`, `inherit`],
+      env: {
+        ...process.env,
+        NODE_ENV: `production`,
+        RUN_FOR_STALE_PAGE_ARTIFICATS: `2`,
+      },
+    })
+
+    gatsbyProcess.on(`exit`, exitCode => {
+      done()
+    })
+  })
+
+  describe(`html files`, () => {
+    const type = `html`
+
+    describe(`should have expected html files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: expectedPages,
+        type,
+        shouldExist: true,
+      })
+    })
+
+    describe(`shouldn't have unexpected html files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: unexpectedPages,
+        type,
+        shouldExist: false,
+      })
+    })
+  })
+
+  describe(`page-data files`, () => {
+    const type = `page-data`
+
+    describe(`should have expected page-data files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: expectedPages,
+        type,
+        shouldExist: true,
+      })
+    })
+
+    describe(`shouldn't have unexpected page-data files`, () => {
+      assertFileExistenceForPagePaths({
+        pagePaths: unexpectedPages,
+        type,
+        shouldExist: false,
+      })
+    })
+  })
+})