The partial rebuilds works by calaulating a baseline from a change set.
For new content, this doesn't work, so to avoid rebuilding everything, we first
try to collect a sample of surrounding identities (e.g. content files in the same section).
This commit fixes a flaw in that logic that in some (many...) cases would return a too small sample set.
Fixes#12054
Move the removal of duplicate content and resource files after we have determined if we're inside a leaf bundle or not.
Note that these would eventually have been filtered out as duplicates when inserting them into the document store, but doing it here will preserve a consistent ordering.
Fixes#12013
Also fix a logical flaw in the cache resizer that made it too aggressive. After this I haven't been able to reproduce #11988, but I need to look closer.
Closes#11973
Updates #11988
* Add --pprof flag to server to enable profile debugging.
* Don't cache the resource content, it seem to eat memory on bigger sites.
* Keep --printMemoryUsag running in server
Fixes#11974
Deprecation message was also emitted when calling .Page.Language.Lang.
Reverting for now, but will remove all references to .Page.Lang from
documentation.
We do a slight normalisation of the content paths (lower case, replacing " " with "-") and remove andy language identifier before inserting them into the content tree.
This means that, given that that the default content language is `en`:
```
index.md
index.html
Foo Bar.txt
foo-bar.txt
foo-bar.en.txt
Foo-Bar.txt
```
The bundle above will be reduced to one content file with one resource (`foo-bar.txt`).
Before this commit, what version of the `foo-bar.txt` you ended up with was undeterministic. No we pick the first determined by sort order.
Note that the sort order is stable, but we recommend avoiding situations like the above.
Closes#11946
This is deliberately very simple, but should not break anything. We need to introduce this in baby steps, but this should allow us to introduce this in the documentation.
Note that the `params` section's key/values will be added to `.Params` last. This means that you can have different values for "Hugo's summary" and the custom ".Params.summary" if you want to.
Updates #11055
The method I'm currently using (if other want to help) is:
* Add fmt.Println(b.DumpTxtar()) after the Build step
* Add that to a files var and pass that to Test(t, files) or similar
* Then, if possible, try to reduce the files/content down to what's needed in test.
Note that if the test is small, it's probably faster just to manually re-create the test.
There are some breaking changes in this commit, see #11455.
Closes#11455Closes#11549
This fixes a set of bugs (see issue list) and it is also paying some technical debt accumulated over the years. We now build with Staticcheck enabled in the CI build.
The performance should be about the same as before for regular sized Hugo sites, but it should perform and scale much better to larger data sets, as objects that uses lots of memory (e.g. rendered Markdown, big JSON files read into maps with transform.Unmarshal etc.) will now get automatically garbage collected if needed. Performance on partial rebuilds when running the server in fast render mode should be the same, but the change detection should be much more accurate.
A list of the notable new features:
* A new dependency tracker that covers (almost) all of Hugo's API and is used to do fine grained partial rebuilds when running the server.
* A new and simpler tree document store which allows fast lookups and prefix-walking in all dimensions (e.g. language) concurrently.
* You can now configure an upper memory limit allowing for much larger data sets and/or running on lower specced PCs.
We have lifted the "no resources in sub folders" restriction for branch bundles (e.g. sections).
Memory Limit
* Hugos will, by default, set aside a quarter of the total system memory, but you can set this via the OS environment variable HUGO_MEMORYLIMIT (in gigabytes). This is backed by a partitioned LRU cache used throughout Hugo. A cache that gets dynamically resized in low memory situations, allowing Go's Garbage Collector to free the memory.
New Dependency Tracker: Hugo has had a rule based coarse grained approach to server rebuilds that has worked mostly pretty well, but there have been some surprises (e.g. stale content). This is now revamped with a new dependency tracker that can quickly calculate the delta given a changed resource (e.g. a content file, template, JS file etc.). This handles transitive relations, e.g. $page -> js.Build -> JS import, or $page1.Content -> render hook -> site.GetPage -> $page2.Title, or $page1.Content -> shortcode -> partial -> site.RegularPages -> $page2.Content -> shortcode ..., and should also handle changes to aggregated values (e.g. site.Lastmod) effectively.
This covers all of Hugo's API with 2 known exceptions (a list that may not be fully exhaustive):
Changes to files loaded with template func os.ReadFile may not be handled correctly. We recommend loading resources with resources.Get
Changes to Hugo objects (e.g. Page) passed in the template context to lang.Translate may not be detected correctly. We recommend having simple i18n templates without too much data context passed in other than simple types such as strings and numbers.
Note that the cachebuster configuration (when A changes then rebuild B) works well with the above, but we recommend that you revise that configuration, as it in most situations should not be needed. One example where it is still needed is with TailwindCSS and using changes to hugo_stats.json to trigger new CSS rebuilds.
Document Store: Previously, a little simplified, we split the document store (where we store pages and resources) in a tree per language. This worked pretty well, but the structure made some operations harder than they needed to be. We have now restructured it into one Radix tree for all languages. Internally the language is considered to be a dimension of that tree, and the tree can be viewed in all dimensions concurrently. This makes some operations re. language simpler (e.g. finding translations is just a slice range), but the idea is that it should also be relatively inexpensive to add more dimensions if needed (e.g. role).
Fixes#10169Fixes#10364Fixes#10482Fixes#10630Fixes#10656Fixes#10694Fixes#10918Fixes#11262Fixes#11439Fixes#11453Fixes#11457Fixes#11466Fixes#11540Fixes#11551Fixes#11556Fixes#11654Fixes#11661Fixes#11663Fixes#11664Fixes#11669Fixes#11671Fixes#11807Fixes#11808Fixes#11809Fixes#11815Fixes#11840Fixes#11853Fixes#11860Fixes#11883Fixes#11904Fixes#7388Fixes#7425Fixes#7436Fixes#7544Fixes#7882Fixes#7960Fixes#8255Fixes#8307Fixes#8863Fixes#8927Fixes#9192Fixes#9324
