# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1689597942 -7200
# Node ID d73537b925af01aefe8e3be21cd6af6a70ab04e6
# Parent  89087a6af16afca2c28814a9e60cda3497a77acf
start implementation of HgConnector

diff -r 89087a6af16a -r d73537b925af build.gradle.kts
--- a/build.gradle.kts	Sat Jul 15 13:49:36 2023 +0200
+++ b/build.gradle.kts	Mon Jul 17 14:45:42 2023 +0200
@@ -5,7 +5,7 @@
     war
 }
 group = "de.uapcore"
-version = "1.0.1"
+version = "1.1.0-snapshot"
 
 repositories {
     mavenCentral()
@@ -50,5 +50,11 @@
                 implementation("io.github.java-diff-utils:java-diff-utils:4.12")
             }
         }
+        val test by getting {
+            dependencies {
+                implementation("org.jetbrains.kotlin:kotlin-test-junit5")
+                runtimeOnly("org.junit.jupiter:junit-jupiter-engine:5.5.2")
+            }
+        }
     }
 }
diff -r 89087a6af16a -r d73537b925af src/main/kotlin/de/uapcore/lightpit/vcs/HgConnector.kt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/kotlin/de/uapcore/lightpit/vcs/HgConnector.kt	Mon Jul 17 14:45:42 2023 +0200
@@ -0,0 +1,54 @@
+/*
+ * 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.util.concurrent.TimeUnit
+
+/**
+ * A connector for Mercurial repositories.
+ *
+ * @param path the path to the Mercurial binary
+ */
+class HgConnector(private val path: String) {
+
+    /**
+     * Checks, if the specified binary is available and executable.
+     */
+    fun checkAvailability(): Boolean {
+        return try {
+            val process = ProcessBuilder(path, "--version").start()
+            val versionInfo = String(process.inputStream.readAllBytes(), Charsets.UTF_8)
+            if (process.waitFor(10, TimeUnit.SECONDS)) {
+                versionInfo.contains("Mercurial")
+            } else {
+                false
+            }
+        } catch (_: Throwable) {
+            false
+        }
+    }
+}
\ No newline at end of file
diff -r 89087a6af16a -r d73537b925af src/main/webapp/WEB-INF/web.xml
--- a/src/main/webapp/WEB-INF/web.xml	Sat Jul 15 13:49:36 2023 +0200
+++ b/src/main/webapp/WEB-INF/web.xml	Mon Jul 17 14:45:42 2023 +0200
@@ -12,6 +12,10 @@
         <param-name>available-languages</param-name>
         <param-value>en,de</param-value>
     </context-param>
+    <context-param>
+        <param-name>hg-binary</param-name>
+        <param-value>/usr/bin/hg</param-value>
+    </context-param>
     <resource-ref>
         <description>Application Database</description>
         <res-ref-name>jdbc/lightpit/app</res-ref-name>
diff -r 89087a6af16a -r d73537b925af src/test/kotlin/de/uapcore/lightpit/vcs/HgConnectorTest.kt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/test/kotlin/de/uapcore/lightpit/vcs/HgConnectorTest.kt	Mon Jul 17 14:45:42 2023 +0200
@@ -0,0 +1,46 @@
+/*
+ * 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 kotlin.test.Test
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class HgConnectorTest {
+
+    private val testee = HgConnector("/usr/bin/hg")
+
+    @Test
+    fun checkAvailability() {
+        assertTrue(testee.checkAvailability())
+    }
+
+    @Test
+    fun checkAvailabilityFalse() {
+        assertFalse(HgConnector("/bin/false").checkAvailability())
+    }
+}
\ No newline at end of file