Files
container/Sources/ContainerBuild/BuildFile.swift
T
Danny Canter 9f8a0fb87d Build: Fallback to Containerfile if Dockerfile not found (#812)
Closes #782 #99

If a Dockerfile can't be found in the context dir, check for the common
alternative Containerfile. This does not implement .containerignore
also, solely Containerfile for now. This also funnily enough fixes us
not checking for the Dockerfile IN the context directory.. woops.

## Type of Change
- [x] Bug fix
- [x] New feature  
- [ ] Breaking change
- [ ] Documentation update

## Testing
- [x] Tested locally
- [x] Added/updated tests
- [x] Added/updated docs
2025-10-27 08:28:29 -07:00

47 lines
1.9 KiB
Swift

//===----------------------------------------------------------------------===//
// Copyright © 2025 Apple Inc. and the container project authors.
//
// 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
//
// https://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.
//===----------------------------------------------------------------------===//
import Foundation
import Logging
public struct BuildFile {
/// Tries to resolve either a Dockerfile or Containerfile relative to contextDir.
/// Checks for Dockerfile, then falls back to Containerfile.
public static func resolvePath(contextDir: String, log: Logger? = nil) throws -> String? {
// Check for Dockerfile then Containerfile in context directory
let dockerfilePath = URL(filePath: contextDir).appendingPathComponent("Dockerfile").path
let containerfilePath = URL(filePath: contextDir).appendingPathComponent("Containerfile").path
let dockerfileExists = FileManager.default.fileExists(atPath: dockerfilePath)
let containerfileExists = FileManager.default.fileExists(atPath: containerfilePath)
if dockerfileExists && containerfileExists {
log?.info("Detected both Dockerfile and Containerfile, choosing Dockerfile")
return dockerfilePath
}
if dockerfileExists {
return dockerfilePath
}
if containerfileExists {
return containerfilePath
}
return nil
}
}