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51 lines
1.6 KiB
51 lines
1.6 KiB
/*
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Copyright © 2021 Drew Short <warricks@sothr.com>
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 dockerfile implements the required components for working with dockerfile image definitions
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package dockerfile
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import (
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"os"
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log "github.com/sirupsen/logrus"
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buildkitDockerfile "github.com/moby/buildkit/frontend/dockerfile/parser"
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"sothr.com/warricksothr/pinned-package-updater/internal/parser"
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)
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// Parse reads a Dockerfile, interprets the AST and returns information about the image(s) and package(s) defined
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func Parse(dockerfilePath string) (parser.ParseResult, error) {
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dockerfile, err := os.Open(dockerfilePath)
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if err != nil {
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log.Fatalf("Unexpected error reading file %s: %s", dockerfilePath, err)
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return parser.ParseResult{}, err
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}
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defer func(dockerfile *os.File) {
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err := dockerfile.Close()
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if err != nil {
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log.Error("Unexpected error closing file %s: %s", dockerfilePath, err)
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}
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}(dockerfile)
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_, err = buildkitDockerfile.Parse(dockerfile)
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if err != nil {
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log.Fatalf("Unexpected error parsing Dockerfile %s: %s", dockerfilePath, err)
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return parser.ParseResult{}, err
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}
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return parser.ParseResult{}, nil
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}
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