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[SPARK-6300][Spark Core] sc.addFile(path) does not support the relative path. #4993

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[SPARK-6300][Spark Core] sc.addFile(path) does not support the relative path. #4993

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c3f046f
Merge pull request #1 from apache/master
pzzs Mar 2, 2015
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Merge pull request #2 from apache/master
pzzs Mar 5, 2015
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Merge pull request #3 from apache/master
pzzs Mar 10, 2015
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Merge pull request #4 from apache/master
pzzs Mar 12, 2015
e4a13fe
getCanonicalPath
pzzs Mar 12, 2015
dced8eb
Update SparkContext.scala
pzzs Mar 12, 2015
0ff3fa8
test for add file
pzzs Mar 12, 2015
d594e16
Update SparkContext.scala
pzzs Mar 13, 2015
ee375cd
Update SparkContextSuite.scala
pzzs Mar 13, 2015
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2 changes: 1 addition & 1 deletion core/src/main/scala/org/apache/spark/SparkContext.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1093,7 +1093,7 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
def addFile(path: String, recursive: Boolean): Unit = {
val uri = new URI(path)
val schemeCorrectedPath = uri.getScheme match {
case null | "local" => "file:" + uri.getPath
case null | "local" => "file:" + new File(path).getCanonicalPath
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I think this might be slightly more robust as new File(path).getCanonicalFile.toURI.toString. Then the "file:" can go away too.

case _ => path
}

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29 changes: 29 additions & 0 deletions core/src/test/scala/org/apache/spark/SparkContextSuite.scala
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Expand Up @@ -106,6 +106,35 @@ class SparkContextSuite extends FunSuite with LocalSparkContext {
sc.stop()
}
}

test("addFile works with relative path") {
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Rather than copy and paste the test I wonder if this can just be injected into the "addFile works" test. Like, make the test file a relative path there. Also I see that test doesn't use the framework provided temp dir which you did correctly here.

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I think it would be good to test both absolute and relative paths. Maybe we can break the meat of the test out into a separate function and have both tests call it.

val pluto = Utils.createTempDir()
val file = File.createTempFile("someprefix", "somesuffix", pluto)
val relativePath = file.getParent + "/../" + file.getParentFile.getName + "/" + file.getName
val absolutePath = file.getAbsolutePath
try {
Files.write("somewords", file, UTF_8)
val length = file.length()
sc = new SparkContext(new SparkConf().setAppName("test").setMaster("local"))
sc.addFile(relativePath)
sc.parallelize(Array(1), 1).map(x => {
val gotten = new File(SparkFiles.get(file.getName))
if (!gotten.exists()) {
throw new SparkException("file doesn't exist")
}
if (length != gotten.length()) {
throw new SparkException(
s"file has different length $length than added file ${gotten.length()}")
}
if (absolutePath == gotten.getAbsolutePath) {
throw new SparkException("file should have been copied")
}
x
}).count()
} finally {
sc.stop()
}
}

test("addFile recursive works") {
val pluto = Utils.createTempDir()
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