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https://github.com/NVIDIA/nvidia-container-toolkit
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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
/**
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# Copyright 2023 NVIDIA 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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**/
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package lookup
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import "errors"
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type first []Locator
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// First returns a locator that returns the first non-empty match
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func First(locators ...Locator) Locator {
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var f first
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for _, l := range locators {
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if l == nil {
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continue
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}
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f = append(f, l)
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}
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return f
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}
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// Locate returns the results for the first locator that returns a non-empty non-error result.
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func (f first) Locate(pattern string) ([]string, error) {
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var allErrors []error
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for _, l := range f {
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if l == nil {
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continue
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}
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candidates, err := l.Locate(pattern)
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if err != nil {
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allErrors = append(allErrors, err)
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continue
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}
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if len(candidates) > 0 {
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return candidates, nil
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}
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}
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return nil, errors.Join(allErrors...)
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}
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