Added copyright check whitelist

Added the file .copyright_whitelist which will contain a list of files,
these files are not required to have a copyright in them and
will not cause the copyrightcheck job to fail.
Removed if statement surrounding REGEX declaration as ibm repos
no longer use the copyright check script, so we can expect the
copyrights to be that of eclipse.
Fixes: eclipse-openj9#1043
[skip ci]

Signed-off-by: Colton Mills <[email protected]>

.copyright_whitelist

@@ -0,0 +1,3 @@
+//List of files that don't require copyrights
+//One file per line, and full paths must be used
+.copyright_whitelist

buildenv/jenkins/jobs/infrastructure/copyrightCheck

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2017, 2018 IBM Corp. and others
+ * Copyright (c) 2017, 2019 IBM Corp. and others
  *
  * This program and the accompanying materials are made available under
  * the terms of the Eclipse Public License 2.0 which accompanies this
@@ -55,26 +55,29 @@ timeout(time: 6, unit: 'HOURS') {
                     ).trim()
 
                     // Set a different Copyright regex depending on the Repo the PR is from
-                    if (ghprbGhRepository ==~ "eclipse.*") {
-                        REGEX = "\'Copyright \\(c\\) ([0-9]{4}), ${DATE_YEAR}\'"
-                    } else if (ghprbGhRepository ==~ "ibmruntimes.*") {
-                        REGEX = "\'\\(c\\) Copyright IBM Corp. ([0-9]{4}), ${DATE_YEAR} All Rights Reserved\'"
-                    } else {
-                        echo "ERROR: Unrecognized repository. Unable to determine correct Copyright regex"
-                        sh 'exit 1'
+                    REGEX = "\'Copyright \\(c\\) ([0-9]{4}), ${DATE_YEAR}\'"
+
+                    WHITE_LIST = []
+                    if (fileExists("${WORKSPACE}/.copyright_whitelist")) {
+                        WHITE_LIST = readFile '.copyright_whitelist'
+                        WHITE_LIST = WHITE_LIST.tokenize("\n")
                     }
 
                     FILES_LIST.each() {
                         println "Checking file: '${it}'"
-                        RESULT = sh (
-                            script: "grep -qE ${REGEX} '${it}'",
-                            returnStatus: true)
-                        if(RESULT != 0) {
-                            echo "FAILURE - Copyright date in file: '${it}' appears to be incorrect"
-                            FAIL = true
-                            BAD_FILES << "${it}"
+                        if (WHITE_LIST.contains(it)) {
+                            echo "Ignoring file"
                         } else {
-                            echo "Copyright date in file: appears to be correct"
+                            RESULT = sh (
+                                script: "grep -qE ${REGEX} '${it}'",
+                                returnStatus: true)
+                            if(RESULT != 0) {
+                                echo "FAILURE - Copyright date in file: '${it}' appears to be incorrect"
+                                FAIL = true
+                                BAD_FILES << "${it}"
+                            } else {
+                                echo "Copyright date in file: appears to be correct"
+                            }
                         }
                     }
                     if (FAIL) {
@@ -84,7 +87,7 @@ timeout(time: 6, unit: 'HOURS') {
                             echo "${it}"
                         }
                         echo "${HASHES}"
-                        sh 'exit 1'
+                        error("One or more files do not have valid copyrights.")
                     } else {
                         echo "All modified files appear to have correct copyrights"
                     }