slack.cli.Toml.kt Maven / Gradle / Ivy
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Kotlin CLI utilities, mostly intended for use with Clikt.
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/*
* Copyright (C) 2022 Slack Technologies, LLC
*
* 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.
*/
package slack.cli
import java.io.File
public object Toml {
private val IGNORED_BLOCKS =
sequenceOf("plugins", "libraries", "bundles").mapTo(LinkedHashSet()) { "[$it]" }
/**
* Parses the version declarations out of a given Gradle versions TOML file. This tries to be
* efficient by only parsing the first part of the file and assumes that plugins are the next
* block after the version declarations.
*/
public fun parseVersion(versionsToml: File): Map {
return versionsToml.useLines(Charsets.UTF_8, ::parseVersion)
}
internal fun parseVersion(lines: Sequence): Map {
return lines
.filterNot { it.startsWith('#') || it.trim() == "[versions]" }
.takeWhile { it.trim() !in IGNORED_BLOCKS }
.filterNot { it.isBlank() }
.associate { line ->
val (k, v) = line.substringBefore("#").split("=").map { it.trim().removeSurrounding("\"") }
k to v
}
}
}