com.github.jengelman.gradle.plugins.shadow.internal.CleanProperties.kt Maven / Gradle / Ivy

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Gradle plugin to create fat/uber JARs, apply file transforms, and relocate packages for applications and libraries. Gradle version of Maven's Shade plugin.

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package com.github.jengelman.gradle.plugins.shadow.internal

import java.io.BufferedWriter
import java.io.IOException
import java.io.Writer
import java.util.Date
import java.util.Properties

internal class CleanProperties : Properties() {
  @Throws(IOException::class)
  override fun store(writer: Writer, comments: String) {
    super.store(StripCommentsWithTimestampBufferedWriter(writer), comments)
  }

  private class StripCommentsWithTimestampBufferedWriter(out: Writer) : BufferedWriter(out) {
    private val lengthOfExpectedTimestamp = ("#" + Date().toString()).length

    @Throws(IOException::class)
    override fun write(str: String) {
      if (str.couldBeCommentWithTimestamp) return
      super.write(str)
    }

    private val String?.couldBeCommentWithTimestamp: Boolean get() {
      return this != null && startsWith("#") && length == lengthOfExpectedTimestamp
    }
  }
}