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// Copyright 2023 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package filecache_test
import (
"path/filepath"
"runtime"
"testing"
"time"
qt "github.com/frankban/quicktest"
"github.com/gohugoio/hugo/hugolib"
)
// See issue #10781. That issue wouldn't have been triggered if we kept
// the empty root directories (e.g. _resources/gen/images).
// It's still an upstream Go issue that we also need to handle, but
// this is a test for the first part.
func TestPruneShouldPreserveEmptyCacheRoots(t *testing.T) {
files := `
-- hugo.toml --
baseURL = "https://example.com"
-- content/_index.md --
---
title: "Home"
---
`
b := hugolib.NewIntegrationTestBuilder(
hugolib.IntegrationTestConfig{T: t, TxtarString: files, RunGC: true, NeedsOsFS: true},
).Build()
_, err := b.H.BaseFs.ResourcesCache.Stat(filepath.Join("_gen", "images"))
b.Assert(err, qt.IsNil)
}
func TestPruneImages(t *testing.T) {
files := `
-- hugo.toml --
baseURL = "https://example.com"
[caches]
[caches.images]
maxAge = "200ms"
dir = ":resourceDir/_gen"
-- content/_index.md --
---
title: "Home"
---
-- assets/a/pixel.png --
iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==
-- layouts/index.html --
{{ $img := resources.GetMatch "**.png" }}
{{ $img = $img.Resize "3x3" }}
{{ $img.RelPermalink }}
`
b := hugolib.NewIntegrationTestBuilder(
hugolib.IntegrationTestConfig{T: t, TxtarString: files, RunGC: true, NeedsOsFS: true},
).Build()
b.Assert(b.GCCount, qt.Equals, 0)
imagesCacheDir := filepath.Join("_gen", "images")
_, err := b.H.BaseFs.ResourcesCache.Stat(imagesCacheDir)
b.Assert(err, qt.IsNil)
// TODO(bep) we need a way to test full rebuilds.
// For now, just sleep a little so the cache elements expires.
time.Sleep(300 * time.Millisecond)
b.RenameFile("assets/a/pixel.png", "assets/b/pixel2.png").Build()
b.Assert(b.GCCount, qt.Equals, 1)
// Build it again to GC the empty a dir.
b.Build()
if runtime.GOOS != "windows" {
// See issue #58860 -- this sometimes fails on Windows,
// but the empty directory will be removed on the next run.
_, err = b.H.BaseFs.ResourcesCache.Stat(filepath.Join(imagesCacheDir, "a"))
b.Assert(err, qt.Not(qt.IsNil))
}
_, err = b.H.BaseFs.ResourcesCache.Stat(imagesCacheDir)
b.Assert(err, qt.IsNil)
}
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