mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-30 00:11:59 +00:00
04b28d116c
These changes make library lookups more robust. The core change is that library lookups now first look a set of predefined locations before checking the ldcache. This also handles cases where an ldcache is not available more gracefully. Signed-off-by: Evan Lezar <elezar@nvidia.com>
54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
/**
|
|
# Copyright 2023 NVIDIA CORPORATION
|
|
#
|
|
# 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 "errors"
|
|
|
|
type first []Locator
|
|
|
|
// First returns a locator that returns the first non-empty match
|
|
func First(locators ...Locator) Locator {
|
|
var f first
|
|
for _, l := range locators {
|
|
if l == nil {
|
|
continue
|
|
}
|
|
f = append(f, l)
|
|
}
|
|
return f
|
|
}
|
|
|
|
// Locate returns the results for the first locator that returns a non-empty non-error result.
|
|
func (f first) Locate(pattern string) ([]string, error) {
|
|
var allErrors []error
|
|
for _, l := range f {
|
|
if l == nil {
|
|
continue
|
|
}
|
|
candidates, err := l.Locate(pattern)
|
|
if err != nil {
|
|
allErrors = append(allErrors, err)
|
|
continue
|
|
}
|
|
if len(candidates) > 0 {
|
|
return candidates, nil
|
|
}
|
|
}
|
|
|
|
return nil, errors.Join(allErrors...)
|
|
}
|