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Fix some server/watch rebuild issues

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Two issues:

1. Fixe potential edit-loop in server/watch mode (see below)
2. Drain the cache eviction stack before we start calculating the change set. This should allow more fine grained rebuilds for bigger sites and/or in low memory situations.

The fix in 6c68142cc1 wasn't really fixing the complete problem.

In Hugo we have some steps that takes more time than others, one example being CSS building with TailwindCSS.

The symptom here is that sometimes when you:

1. Edit content or templates that does not trigger a CSS rebuild => Snappy rebuild.
2. Edit stylesheet or add a CSS class to template that triggers a CSS rebuild => relatively slow rebuild (expected)
3. Then back to content editing or template edits that should not trigger a CSS rebuild => relatively slow rebuild (not expected)

This commit fixes this by pulling the dynacache GC step up and merge it with the cache buster step.

Fixes #13316
This commit is contained in:
Bjørn Erik Pedersen
2025-01-31 10:35:01 +01:00
parent 778f0d9002
commit db28695ff5
6 changed files with 59 additions and 51 deletions
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4
cache/dynacache/dynacache_test.go vendored
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@@ -147,13 +147,13 @@ func TestClear(t *testing.T) {
c.Assert(cache.Keys(predicateAll), qt.HasLen, 4)
cache.ClearOnRebuild()
cache.ClearOnRebuild(nil)
// Stale items are always cleared.
c.Assert(cache.Keys(predicateAll), qt.HasLen, 2)
cache = newTestCache(t)
cache.ClearOnRebuild(identity.StringIdentity("changed"))
cache.ClearOnRebuild(nil, identity.StringIdentity("changed"))
c.Assert(cache.Keys(nil), qt.HasLen, 1)