How to publish scala module in sonatype and maven?

I have been trying publish module to sonatype but I am getting this exception--

[error] java.io.FileNotFoundException: /home/johnny/.sbt/gpg/secring.asc (No such file or directory)
[error]     at java.io.FileInputStream.open0(Native Method)
[error]     at java.io.FileInputStream.open(FileInputStream.java:195)
[error]     at java.io.FileInputStream.<init>(FileInputStream.java:138)
[error]     at com.jsuereth.pgp.StreamingLoadable.loadFromFile(StreamingLoadable.scala:11)
[error]     at com.jsuereth.pgp.StreamingLoadable.loadFromFile$(StreamingLoadable.scala:11)
[error]     at com.jsuereth.pgp.SecretKeyRing$.loadFromFile(SecretKeyRing.scala:45)
[error]     at com.jsuereth.pgp.PGP$.loadSecretKeyRing(package.scala:31)
[error]     at com.jsuereth.pgp.cli.PgpStaticContext.secretKeyRing(context.scala:27)
[error]     at com.jsuereth.pgp.cli.PgpStaticContext.secretKeyRing$(context.scala:27)
[error]     at com.typesafe.sbt.pgp.SbtPgpStaticContext.secretKeyRing(SbtPgpCommandContext.scala:9)
[error]     at com.jsuereth.pgp.cli.DelegatingPgpStaticContext.secretKeyRing(context.scala:34)
[error]     at com.jsuereth.pgp.cli.DelegatingPgpStaticContext.secretKeyRing$(context.scala:34)
[error]     at com.typesafe.sbt.pgp.SbtPgpCommandContext.secretKeyRing(SbtPgpCommandContext.scala:14)
[error]     at com.typesafe.sbt.pgp.BouncyCastlePgpSigner.$anonfun$keyId$1(PgpSigner.scala:37)
[error]     at scala.runtime.java8.JFunction0$mcJ$sp.apply(JFunction0$mcJ$sp.java:12)
[error]     at scala.Option.getOrElse(Option.scala:121)
[error]     at com.typesafe.sbt.pgp.BouncyCastlePgpSigner.<init>(PgpSigner.scala:37)
[error]     at com.typesafe.sbt.pgp.PgpSettings$.$anonfun$bcPgpSigner$1(PgpSettings.scala:111)
[error]     at scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error]     at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:40)
[error]     at sbt.std.Transform$$anon$4.work(System.scala:67)
[error]     at sbt.Execute.$anonfun$submit$2(Execute.scala:269)
[error]     at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
[error]     at sbt.Execute.work(Execute.scala:278)
[error]     at sbt.Execute.$anonfun$submit$1(Execute.scala:269)
[error]     at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
[error]     at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
[error]     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error]     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[error]     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error]     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[error]     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[error]     at java.lang.Thread.run(Thread.java:748)
[error] (Global / pgpSigner) java.io.FileNotFoundException: /home/johnny/.sbt/gpg/secring.asc (No such file or directory)
[error] Total time: 1 s, completed Jul 17, 2019 2:46:54 PM

I have tried many ways and and plugin setup instructions but getting different short of exceptions.

Solution

You can do this by this way:

check $ gpg --version

If do not have, install gnupg.

Then run $ gpg --gen-key to generate key. set realm , set mail address, set the passphrase

Key generation completed

check by $ gpg --list-keys

you will get this type result-

pub   rsa4096 2018-08-22 [SC]
      1234517530FB96F147C6A146A326F592D39AAAAA
uid           [ultimate] your name <[email protected]>
sub   rsa4096 2018-08-22 [E]

Now use this command to get public key block

$ gpg -a --export 1234517530FB96F147C6A146A326F592D39AAAAA

Copy the whole text-

-----BEGIN PGP PUBLIC KEY BLOCK-----

-----END PGP PUBLIC KEY BLOCK-----

Submit it pgp key servers, Wait some hours.

4.1 export secring.asc file to any location of your computer. write this command

$ gpg -a --export-secret-keys > /home/johnny/secring.asc

4.2 Copy this file and place it to this location

~/.sbt/gpg/secring.asc

Now you will have to set up sbt-pgp plugin

To this ~/.sbt/1.0/plugins/gpg.sbt file to enable it globally for SBT projects add this line- (if the gpg.sbt file does not exist create this there)

addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.1")

Go to /home/$username/.gnugp folder, if you see pubring.kpx file but not secring.gpg file, you do not need to add useGpg := true line in your module's build.sbt file. If secring.gpg file exists add useGpg := true in your module's build.sbt file.

6.1 run this command on your terminal to find out the gpg executable file in your machine

$ dpkg --listfiles gpg

/.
/usr
/usr/bin
/usr/bin/gpg
/usr/share
/usr/share/doc
/usr/share/doc/gpg
/usr/share/doc/gpg/copyright
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/gpg.1.gz
/usr/share/doc/gpg/NEWS.Debian.gz
/usr/share/doc/gpg/changelog.Debian.gz

6.2 add this to ~/.sbt/gpg.sbt file

gpgCommand := "/user/bin/gpg"

6.3 If in your /home/$username/.gnugp folder you have secring.gpg file you will have to add this to ~/.sbt/gpg.sbt file by

pgpSecretRing := file("/path/to/my/secring.gpg")

For more information visit this link

Now create this file ~/.sbt/1.0/sonatype.sbt just add this line to the file

credentials += Credentials(Path.userHome / ".sbt" / "sonatype_credential")

7.1 Create JIRA account by this link

7.2 By create button create an issue for opening your repository in sonatype

7.3 Create github repository or use your module related repository in issue creation form.

you will get idea about your form from this pic

7.4 Create a another repository with your issue's OSSRH-XXXXX string like this- githubusername/OSSRH-xxxx . To verify your repository

You will have to wait some minutes to be approved. If your repo is approved you will get a mail.

Now create this file ~/.sbt/sonatype_credential, just add this line and in pass and username - set your JIRA password and username respectively.
```
 realm=Sonatype Nexus Repository Manager
 host=oss.sonatype.org
 user=username
 password=password
```

in your module's build.sbt file set this configuration---

 ThisBuild / organization := "com.example.project2"
 ThisBuild / organizationName := "example"
 ThisBuild / organizationHomepage := Some(url("http://example.com/"))

 ThisBuild / scmInfo := Some(
 ScmInfo(
 url("https://github.com/your-account/your-project"),
 "scm:[email protected]:your-account/your-project.git"
  )
 )


 ThisBuild / developers := List(
    Developer(
    id    = "Your identifier",
    name  = "Your Name",
    email = "your@email",
    url   = url("http://your.url")
     )
    )

  ThisBuild / description := "Some descripiton about your project."
  ThisBuild / licenses := List("Apache 2" -> new URL("http://www.apache.org      /licenses/LICENSE-2.0.txt"))
  ThisBuild / homepage := Some(url("https://github.com/example/project"))

   // Remove all additional repository other than Maven Central from POM
  ThisBuild / pomIncludeRepository := { _ => false }
  ThisBuild / publishTo := {
  val nexus = "https://oss.sonatype.org/"
  if (isSnapshot.value) Some("snapshots" at nexus + "content/repositories/snapshots")
  else Some("releases" at nexus + "service/local/staging/deploy/maven2")
   }
  ThisBuild / publishMavenStyle := true

Now run publishSigned on your sbt project.

Now you can check your upload by this link

https://oss.sonatype.org/content/repositories/snapshots/com/github/$yourgitUserName/$repoName

or login https://oss.sonatype.org/ and search by your module name