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Updated Groovy examples for the Groovy Script article.

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rpopma
2017-11-04 23:11:46 +09:00
parent af03e8f3ed
commit e7a1c1e89b
3 changed files with 37 additions and 12 deletions
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7
examples/src/main/groovy/picocli/examples/checksum-with-banner.groovy
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@@ -17,10 +17,7 @@ package picocli.examples
)
@picocli.groovy.PicocliScript
import groovy.transform.Field
import java.nio.file.Files
import java.security.MessageDigest
import static picocli.CommandLine.*
@Parameters(arity = "1", paramLabel = "FILE", description = "The file(s) whose checksum to calculate.")
@@ -37,7 +34,5 @@ import static picocli.CommandLine.*
@Field private boolean versionInfoRequested
files.each {
byte[] fileContents = Files.readAllBytes(it.toPath())
byte[] digest = MessageDigest.getInstance(algorithm).digest(fileContents)
println javax.xml.bind.DatatypeConverter.printHexBinary(digest) + "\t" + it
println MessageDigest.getInstance(algorithm).digest(it.bytes).encodeHex().toString() + "\t" + it
}

35
examples/src/main/groovy/picocli/examples/checksum-without-base.groovy Normal file
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@@ -0,0 +1,35 @@
package picocli.examples
@Grab('info.picocli:picocli:2.0.1')
@GrabExclude('org.codehaus.groovy:groovy-all')
import java.security.MessageDigest
import picocli.CommandLine
import static picocli.CommandLine.*
class Checksum {
@Parameters(arity = "1", paramLabel = "FILE", description = "The file(s) whose checksum to calculate.")
File[] files
@Option(names = ["-a", "--algorithm"], description = ["MD2, MD5, SHA-1, SHA-256, SHA-384, SHA-512,",
" or any other MessageDigest algorithm."])
String algorithm = "MD5"
@Option(names = ["-h", "--help"], usageHelp = true, description = "Show this help message and exit.")
boolean helpRequested
}
Checksum checksum = new Checksum()
CommandLine commandLine = new CommandLine(checksum)
try {
commandLine.parse(args)
if (commandLine.usageHelpRequested) {
commandLine.usage(System.out)
} else {
checksum.files.each {
byte[] digest = MessageDigest.getInstance(checksum.algorithm).digest(it.bytes)
println digest.encodeHex().toString() + "\t" + it
}
}
} catch (ParameterException ex) {
println ex.message
commandLine.usage(System.out)
}

7
examples/src/main/groovy/picocli/examples/checksum.groovy
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@@ -4,10 +4,7 @@ package picocli.examples
@GrabExclude('org.codehaus.groovy:groovy-all')
@picocli.groovy.PicocliScript
import groovy.transform.Field
import java.nio.file.Files
import java.security.MessageDigest
import static picocli.CommandLine.*
@Parameters(arity = "1", paramLabel = "FILE", description = "The file(s) whose checksum to calculate.")
@@ -21,7 +18,5 @@ import static picocli.CommandLine.*
@Field private boolean helpRequested
files.each {
byte[] fileContents = Files.readAllBytes(it.toPath())
byte[] digest = MessageDigest.getInstance(algorithm).digest(fileContents)
println javax.xml.bind.DatatypeConverter.printHexBinary(digest) + "\t" + it
println MessageDigest.getInstance(algorithm).digest(it.bytes).encodeHex().toString() + "\t" + it
}