tpl: Add path.Split template func

diff --git a/tpl/path/init.go b/tpl/path/init.go
new file mode 100644 (file)
index 0000000..ffe71e2
--- /dev/null
+++ b/tpl/path/init.go
@@ -0,0 +1,43 @@
+// Copyright 2018 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 path
+
+import (
+       "github.com/gohugoio/hugo/deps"
+       "github.com/gohugoio/hugo/tpl/internal"
+)
+
+const name = "path"
+
+func init() {
+       f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
+               ctx := New(d)
+
+               ns := &internal.TemplateFuncsNamespace{
+                       Name:    name,
+                       Context: func(args ...interface{}) interface{} { return ctx },
+               }
+
+               ns.AddMethodMapping(ctx.Split,
+                       nil,
+                       [][2]string{
+                               {`{{ "/my/path/filename.txt" | path.Split }}`, `/my/path/|filename.txt`},
+                       },
+               )
+
+               return ns
+
+       }
+       internal.AddTemplateFuncsNamespace(f)
+}

diff --git a/tpl/path/init_test.go b/tpl/path/init_test.go
new file mode 100644 (file)
index 0000000..b0aeab3
--- /dev/null
+++ b/tpl/path/init_test.go
@@ -0,0 +1,38 @@
+// Copyright 2018 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 path
+
+import (
+       "testing"
+
+       "github.com/gohugoio/hugo/deps"
+       "github.com/gohugoio/hugo/tpl/internal"
+       "github.com/stretchr/testify/require"
+)
+
+func TestInit(t *testing.T) {
+       var found bool
+       var ns *internal.TemplateFuncsNamespace
+
+       for _, nsf := range internal.TemplateFuncsNamespaceRegistry {
+               ns = nsf(&deps.Deps{})
+               if ns.Name == name {
+                       found = true
+                       break
+               }
+       }
+
+       require.True(t, found)
+       require.IsType(t, &Namespace{}, ns.Context())
+}

diff --git a/tpl/path/path.go b/tpl/path/path.go
new file mode 100644 (file)
index 0000000..aa63c0c
--- /dev/null
+++ b/tpl/path/path.go
@@ -0,0 +1,60 @@
+// Copyright 2018 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 path
+
+import (
+       "fmt"
+       _path "path"
+
+       "github.com/gohugoio/hugo/deps"
+       "github.com/spf13/cast"
+)
+
+// New returns a new instance of the path-namespaced template functions.
+func New(deps *deps.Deps) *Namespace {
+       return &Namespace{
+               deps: deps,
+       }
+}
+
+// Namespace provides template functions for the "os" namespace.
+type Namespace struct {
+       deps *deps.Deps
+}
+
+// DirFile holds the result from path.Split.
+type DirFile struct {
+       Dir  string
+       File string
+}
+
+// Used in test.
+func (df DirFile) String() string {
+       return fmt.Sprintf("%s|%s", df.Dir, df.File)
+}
+
+// Split splits path immediately following the final slash,
+// separating it into a directory and file name component.
+// If there is no slash in path, Split returns an empty dir and
+// file set to path.
+// The returned values have the property that path = dir+file.
+func (ns *Namespace) Split(path interface{}) (DirFile, error) {
+       spath, err := cast.ToStringE(path)
+       if err != nil {
+               return DirFile{}, err
+       }
+       dir, file := _path.Split(spath)
+
+       return DirFile{Dir: dir, File: file}, nil
+}

diff --git a/tpl/tplimpl/template_funcs.go b/tpl/tplimpl/template_funcs.go
index 309a7b85f4272a3c752b9b8df609b3dfacc099a5..6ce387acafa2e75504d00c19a662f9142d66cedc 100644 (file)
--- a/tpl/tplimpl/template_funcs.go
+++ b/tpl/tplimpl/template_funcs.go
@@ -34,6 +34,7 @@ import (
        _ "github.com/gohugoio/hugo/tpl/math"
        _ "github.com/gohugoio/hugo/tpl/os"
        _ "github.com/gohugoio/hugo/tpl/partials"
+       _ "github.com/gohugoio/hugo/tpl/path"
        _ "github.com/gohugoio/hugo/tpl/safe"
        _ "github.com/gohugoio/hugo/tpl/strings"
        _ "github.com/gohugoio/hugo/tpl/time"