github.com/anakojm/hugo-katex@v0.0.0-20231023141351-42d6f5de9c0b/hugofs/language_merge.go (about)

     1  // Copyright 2022 The Hugo Authors. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package hugofs
    15  
    16  import (
    17  	"os"
    18  )
    19  
    20  // LanguageDirsMerger implements the overlayfs.DirsMerger func, which is used
    21  // to merge two directories.
    22  var LanguageDirsMerger = func(lofi, bofi []os.FileInfo) []os.FileInfo {
    23  	for _, fi1 := range bofi {
    24  		fim1 := fi1.(FileMetaInfo)
    25  		var found bool
    26  		for _, fi2 := range lofi {
    27  			fim2 := fi2.(FileMetaInfo)
    28  			if fi1.Name() == fi2.Name() && fim1.Meta().Lang == fim2.Meta().Lang {
    29  				found = true
    30  				break
    31  			}
    32  		}
    33  		if !found {
    34  			lofi = append(lofi, fi1)
    35  		}
    36  	}
    37  
    38  	return lofi
    39  }