Add roles and versions as new dimensions (in addition to language)

Fixes #519

Author: bep

cache/dynacache/dynacache.go

@@ -340,7 +340,7 @@ func GetOrCreatePartition[K comparable, V any](c *Cache, name string, opts Optio
 		panic("invalid Weight, must be between 1 and 100")
 	}
 
-	if partitionNameRe.FindString(name) != name {
+	if !partitionNameRe.MatchString(name) {
 		panic(fmt.Sprintf("invalid partition name %q", name))
 	}
 

common/hstrings/strings.go

@@ -127,8 +127,3 @@ func ToString(v any) (string, bool) {
 	}
 	return "", false
 }
-
-type (
-	Strings2 [2]string
-	Strings3 [3]string
-)

common/hugo/hugo.go

@@ -32,6 +32,7 @@ import (
 	"github.com/gohugoio/hugo/common/hexec"
 	"github.com/gohugoio/hugo/common/loggers"
 	"github.com/gohugoio/hugo/common/maps"
+	"github.com/gohugoio/hugo/common/version"
 	"github.com/gohugoio/hugo/hugofs/files"
 
 	"github.com/spf13/afero"
@@ -80,7 +81,7 @@ type HugoInfo struct {
 }
 
 // Version returns the current version as a comparable version string.
-func (i HugoInfo) Version() VersionString {
+func (i HugoInfo) Version() version.VersionString {
 	return CurrentVersion.Version()
 }
 
@@ -451,7 +452,7 @@ func deprecateLevelWithLogger(item, alternative, version string, level logg.Leve
 // We want people to run at least the current and previous version without any warnings.
 // We want people who don't update Hugo that often to see the warnings and errors before we remove the feature.
 func deprecationLogLevelFromVersion(ver string) logg.Level {
-	from := MustParseVersion(ver)
+	from := version.MustParseVersion(ver)
 	to := CurrentVersion
 	minorDiff := to.Minor - from.Minor
 	switch {
@@ -465,3 +466,46 @@ func deprecationLogLevelFromVersion(ver string) logg.Level {
 		return logg.LevelInfo
 	}
 }
+
+// BuildVersionString creates a version string. This is what you see when
+// running "hugo version".
+func BuildVersionString() string {
+	// program := "Hugo Static Site Generator"
+	program := "hugo"
+
+	version := "v" + CurrentVersion.String()
+
+	bi := getBuildInfo()
+	if bi == nil {
+		return version
+	}
+	if bi.Revision != "" {
+		version += "-" + bi.Revision
+	}
+	if IsExtended {
+		version += "+extended"
+	}
+	if IsWithdeploy {
+		version += "+withdeploy"
+	}
+
+	osArch := bi.GoOS + "/" + bi.GoArch
+
+	date := bi.RevisionTime
+	if date == "" {
+		// Accept vendor-specified build date if .git/ is unavailable.
+		date = buildDate
+	}
+	if date == "" {
+		date = "unknown"
+	}
+
+	versionString := fmt.Sprintf("%s %s %s BuildDate=%s",
+		program, version, osArch, date)
+
+	if vendorInfo != "" {
+		versionString += " VendorInfo=" + vendorInfo
+	}
+
+	return versionString
+}

common/hugo/hugo_test.go

@@ -20,6 +20,7 @@ import (
 
 	"github.com/bep/logg"
 	qt "github.com/frankban/quicktest"
+	"github.com/gohugoio/hugo/common/version"
 )
 
 func TestHugoInfo(t *testing.T) {
@@ -29,7 +30,7 @@ func TestHugoInfo(t *testing.T) {
 	hugoInfo := NewInfo(conf, nil)
 
 	c.Assert(hugoInfo.Version(), qt.Equals, CurrentVersion.Version())
-	c.Assert(fmt.Sprintf("%T", VersionString("")), qt.Equals, fmt.Sprintf("%T", hugoInfo.Version()))
+	c.Assert(fmt.Sprintf("%T", version.VersionString("")), qt.Equals, fmt.Sprintf("%T", hugoInfo.Version()))
 	c.Assert(hugoInfo.WorkingDir(), qt.Equals, "/mywork")
 
 	bi := getBuildInfo()

common/hugo/version_current.go

@@ -1,4 +1,4 @@
-// Copyright 2018 The Hugo Authors. All rights reserved.
+// Copyright 2025 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.
@@ -13,9 +13,11 @@
 
 package hugo
 
+import "github.com/gohugoio/hugo/common/version"
+
 // CurrentVersion represents the current build version.
 // This should be the only one.
-var CurrentVersion = Version{
+var CurrentVersion = version.Version{
 	Major:      0,
 	Minor:      148,
 	PatchLevel: 0,

common/maps/orderedintset.go

@@ -0,0 +1,70 @@
+// Copyright 2025 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 maps
+
+import (
+	"fmt"
+
+	"github.com/bits-and-blooms/bitset"
+)
+
+type OrderedIntSet struct {
+	keys   []int
+	values bitset.BitSet
+}
+
+// NewOrderedIntSet creates a new OrderedIntSet.
+// Note that this is backed by https://github.com/bits-and-blooms/bitset
+func NewOrderedIntSet(vals ...int) *OrderedIntSet {
+	m := &OrderedIntSet{}
+	for _, v := range vals {
+		m.Set(v)
+	}
+	return m
+}
+
+// Set sets the value for the given key.
+// Note that insertion order is not affected if a key is re-inserted into the set.
+func (m *OrderedIntSet) Set(key int) {
+	if m == nil {
+		return
+	}
+	keyu := uint(key)
+	if m.values.Test(keyu) {
+		return
+	}
+	m.values.Set(keyu)
+	m.keys = append(m.keys, key)
+}
+
+func (m *OrderedIntSet) Has(key int) bool {
+	if m == nil {
+		return false
+	}
+	return m.values.Test(uint(key))
+}
+
+func (m *OrderedIntSet) Len() int {
+	if m == nil {
+		return 0
+	}
+	return len(m.keys)
+}
+
+func (m *OrderedIntSet) String() string {
+	if m == nil {
+		return "[]"
+	}
+	return fmt.Sprintf("%v", m.keys)
+}

common/maps/orderedintset_test.go

@@ -0,0 +1,57 @@
+// Copyright 2025 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 maps
+
+import (
+	"testing"
+
+	qt "github.com/frankban/quicktest"
+)
+
+func TestOrderedIntSet(t *testing.T) {
+	c := qt.New(t)
+
+	m := NewOrderedIntSet(1, 2, 3)
+
+	c.Assert(m.Len(), qt.Equals, 3)
+	c.Assert(m.Has(1), qt.Equals, true)
+	c.Assert(m.Has(4), qt.Equals, false)
+	c.Assert(m.String(), qt.Equals, "[1 2 3]")
+	m.Set(4)
+	c.Assert(m.Len(), qt.Equals, 4)
+	c.Assert(m.Has(4), qt.Equals, true)
+	c.Assert(m.String(), qt.Equals, "[1 2 3 4]")
+
+	var nilset *OrderedIntSet
+	c.Assert(nilset.Len(), qt.Equals, 0)
+	c.Assert(nilset.Has(1), qt.Equals, false)
+	c.Assert(nilset.String(), qt.Equals, "[]")
+}
+
+func BenchmarkOrderedIntSetHasInSmallSet(b *testing.B) {
+	m := NewOrderedIntSet()
+	for i := range 8 {
+		m.Set(i)
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		m.Has(i % 32)
+	}
+}
+
+func BenchmarkOrderedIntSetNew(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		NewOrderedIntSet(1, 2, 3, 4, 5, 6, 7, 8)
+	}
+}

common/paths/pathparser.go

@@ -14,6 +14,7 @@
 package paths
 
 import (
+	"fmt"
 	"path"
 	"path/filepath"
 	"runtime"
@@ -781,3 +782,12 @@ func HasExt(p string) bool {
 	}
 	return false
 }
+
+// ValidateIdentifier returns true if the given string is a valid identifier according
+// to Hugo's basic path normalization rules.
+func ValidateIdentifier(s string) error {
+	if s == NormalizePathStringBasic(s) {
+		return nil
+	}
+	return fmt.Errorf("must be all lower case and no spaces")
+}

common/predicate/filter.go

@@ -0,0 +1,65 @@
+package predicate
+
+import (
+	"iter"
+	"strings"
+
+	hglob "github.com/gohugoio/hugo/hugofs/glob"
+)
+
+type Filter[T any] struct {
+	exclude P[T]
+	include P[T]
+}
+
+func (f Filter[T]) ShouldExcludeCoarse(v T) bool {
+	return f.exclude != nil && f.exclude(v)
+}
+
+// TODO1 simplify this.
+func (f Filter[T]) ShouldExcludeFine(v T) bool {
+	if f.exclude != nil && f.exclude(v) {
+		return true
+	}
+	return f.include != nil && !f.include(v)
+}
+
+func NewFilter[T any](include, exclude P[T]) Filter[T] {
+	return Filter[T]{exclude: exclude, include: include}
+}
+
+func NewFilterFromGlobs(patterns []string) (Filter[string], error) {
+	var filter Filter[string]
+	for _, p := range patterns {
+		p = strings.TrimSpace(p)
+		if p == "" {
+			continue
+		}
+		if strings.HasPrefix(p, "! ") {
+			p = p[2:]
+			g, err := hglob.GetGlob(p)
+			if err != nil {
+				return filter, err
+			}
+			fn := func(s string) bool {
+				return g.Match(s)
+			}
+			filter.exclude = filter.exclude.Or(fn)
+		} else {
+			g, err := hglob.GetGlob(p)
+			if err != nil {
+				return filter, err
+			}
+			fn := func(s string) bool {
+				return g.Match(s)
+			}
+			filter.include = filter.include.Or(fn)
+		}
+	}
+
+	return filter, nil
+}
+
+type IndexMatcher interface {
+	IndexMatch(filter Filter[string]) (iter.Seq[int], error)
+}

common/types/types.go

@@ -143,3 +143,10 @@ func NewBool(b bool) *bool {
 type PrintableValueProvider interface {
 	PrintableValue() any
 }
+
+type (
+	Strings2 [2]string
+	Strings3 [3]string
+	Ints2    [2]int
+	Ints3    [3]int
+)