mirror of https://github.com/pulumi/pulumi.git
77 lines
1.6 KiB
Go
77 lines
1.6 KiB
Go
// Copyright 2016-2024, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !js
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// +build !js
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package schema
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import (
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"io"
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"os"
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"time"
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"github.com/edsrzf/mmap-go"
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)
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var mmapedFiles = make(map[string]mmap.MMap)
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func (l *pluginLoader) loadCachedSchemaBytes(pkg string, path string, schemaTime time.Time) ([]byte, bool) {
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if l.cacheOptions.disableFileCache {
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return nil, false
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}
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if schemaMmap, ok := mmapedFiles[path]; ok {
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return schemaMmap, true
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}
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success := false
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schemaFile, err := os.OpenFile(path, os.O_RDONLY, 0o644)
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defer func() {
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if !success {
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schemaFile.Close()
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}
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}()
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if err != nil {
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return nil, success
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}
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stat, err := schemaFile.Stat()
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if err != nil {
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return nil, success
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}
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cachedAt := stat.ModTime()
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if schemaTime.After(cachedAt) {
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return nil, success
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}
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if l.cacheOptions.disableMmap {
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data, err := io.ReadAll(schemaFile)
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if err != nil {
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return nil, success
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}
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success = true
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return data, success
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}
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schemaMmap, err := mmap.Map(schemaFile, mmap.RDONLY, 0)
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if err != nil {
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return nil, success
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}
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success = true
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return schemaMmap, success
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}
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