mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 08:18:32 +00:00
70 lines
1.8 KiB
Go
70 lines
1.8 KiB
Go
/*
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# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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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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*/
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package lookup
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import (
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"fmt"
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"strings"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/ldcache"
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log "github.com/sirupsen/logrus"
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)
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type library struct {
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logger *log.Logger
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symlink Locator
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cache ldcache.LDCache
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}
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var _ Locator = (*library)(nil)
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// NewLibraryLocator creates a library locator using the specified logger.
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func NewLibraryLocator(logger *log.Logger, root string) (Locator, error) {
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cache, err := ldcache.New(logger, root)
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if err != nil {
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return nil, fmt.Errorf("error loading ldcache: %v", err)
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}
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l := library{
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logger: logger,
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symlink: NewSymlinkLocator(logger, root),
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cache: cache,
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}
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return &l, nil
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}
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// Locate finds the specified libraryname.
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// If the input is a library name, the ldcache is searched otherwise the
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// provided path is resolved as a symlink.
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func (l library) Locate(libname string) ([]string, error) {
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if strings.Contains(libname, "/") {
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return l.symlink.Locate(libname)
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}
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paths32, paths64 := l.cache.Lookup(libname)
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if len(paths32) > 0 {
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l.logger.Warnf("Ignoring 32-bit libraries for %v: %v", libname, paths32)
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}
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if len(paths64) == 0 {
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return nil, fmt.Errorf("64-bit library %v not found", libname)
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}
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return paths64, nil
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}
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