Tue, 18 Jul 2023 18:05:49 +0200
add working Mercurial commit log parser
fixes #274
/* * Copyright 2023 Mike Becker. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ package de.uapcore.lightpit.vcs import java.nio.file.Files import java.nio.file.Path import kotlin.io.path.ExperimentalPathApi import kotlin.io.path.deleteRecursively /** * A connector for Mercurial repositories. * * @param path the path to the Mercurial binary */ class HgConnector(path: String) : VcsConnector(path) { /** * Checks, if the specified binary is available and executable. */ fun checkAvailability(): Boolean { return when (val versionInfo = invokeCommand(Path.of("."), "--version")) { is VcsConnectorResult.Success -> versionInfo.content.contains("Mercurial") else -> false } } /** * Reads the commit log and parses every reference to an issue. * * The [pathOrUrl] must be a valid path or URL recognized by the VCS binary. * Currently, no authentication is supported and the repository must therefore be publicly readable. */ @OptIn(ExperimentalPathApi::class) fun readCommitLog(pathOrUrl: String): VcsConnectorResult<List<CommitRef>> { val tmpDir = try { Files.createTempDirectory("lightpit-vcs-") } catch (e: Throwable) { return VcsConnectorResult.Error("Creating temporary directory for VCS connection failed: " + e.message) } val init = invokeCommand(tmpDir, "init") if (init is VcsConnectorResult.Error) { return init } val commitLogContent = when (val result = invokeCommand( tmpDir, "incoming", pathOrUrl, "-n", "--template", "::lpitref::{node}:{desc}\\n" )) { is VcsConnectorResult.Error -> return result is VcsConnectorResult.Success -> result.content } val commitRefs = parseCommitRefs(commitLogContent) tmpDir.deleteRecursively() return VcsConnectorResult.Success(commitRefs) } }