mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 16:29:18 +00:00
68b6d1cab1
This change adds a Locator that can be used to locate libraries. If library names are specified, the ldcache is searched otherwise symlinks are resolved. Signed-off-by: Evan Lezar <elezar@nvidia.com>
69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
/*
|
|
# Copyright (c) 2021, NVIDIA CORPORATION. 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 lookup
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/ldcache"
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
type library struct {
|
|
logger *log.Logger
|
|
symlink Locator
|
|
cache ldcache.LDCache
|
|
}
|
|
|
|
var _ Locator = (*library)(nil)
|
|
|
|
// NewLibraryLocator creates a library locator using the specified logger.
|
|
func NewLibraryLocator(logger *log.Logger, root string) (Locator, error) {
|
|
cache, err := ldcache.New(logger, root)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error loading ldcache: %v", err)
|
|
}
|
|
|
|
l := library{
|
|
symlink: NewSymlinkLocator(logger, root),
|
|
cache: cache,
|
|
}
|
|
|
|
return &l, nil
|
|
}
|
|
|
|
// Locate finds the specified libraryname.
|
|
// If the input is a library name, the ldcache is searched otherwise the
|
|
// provided path is resolved as a symlink.
|
|
func (l library) Locate(libname string) ([]string, error) {
|
|
if strings.Contains(libname, "/") {
|
|
return l.symlink.Locate(libname)
|
|
}
|
|
|
|
paths32, paths64 := l.cache.Lookup(libname)
|
|
if len(paths32) > 0 {
|
|
l.logger.Warnf("Ignoring 32-bit libraries for %v: %v", libname, paths32)
|
|
}
|
|
|
|
if len(paths64) == 0 {
|
|
return nil, fmt.Errorf("64-bit library %v not found", libname)
|
|
}
|
|
|
|
return paths64, nil
|
|
}
|