Incomplete artifact downloading/unpacking (.so file missing)

[david-bouyssie]

I encountered an issue with an artifact containing native libraries. The SQLite4Java project is released under several artifacts:

• the main artifact contains the JAR file (see https://mvnrepository.com/artifact/com.almworks.sqlite4java/sqlite4java)
• then several additional artifacts contains additionnal JARs and native libraries for several platforms. For linux amd64 the artifact is https://mvnrepository.com/artifact/com.almworks.sqlite4java/libsqlite4java-linux-amd64

However when doing and $ivy import from Ammonite the .so files are not fetched/unpacked properly:

import $ivy.`com.almworks.sqlite4java:libsqlite4java-linux-amd64:1.0.392`

This can be checked with the following command suggested by @alexarchambault:

repl.sess.frames.flatMap(_.classpath)

which gives

res2: List[java.net.URL] = List(
  file:~/.cache/coursier/v1/https/repo1.maven.org/maven2/com/almworks/sqlite4java/sqlite4java/1.0.392/sqlite4java-1.0.392.jar,
  file:~/.cache/coursier/v1/https/repo1.maven.org/maven2/com/almworks/sqlite4java/sqlite4java/1.0.392/sqlite4java-1.0.392-sources.jar
)

while

coursier fetch com.almworks.sqlite4java:libsqlite4java-linux-amd64:1.0.392 -A '*'

gives

~/.coursier/cache/v1/https/repo1.maven.org/maven2/com/almworks/sqlite4java/libsqlite4java-linux-amd64/1.0.392/libsqlite4java-linux-amd64-1.0.392.so
~/.coursier/cache/v1/https/repo1.maven.org/maven2/com/almworks/sqlite4java/sqlite4java/1.0.392/sqlite4java-1.0.392.jar

@alexarchambault concluded on gitter that it shows that at least two artifacts should be loaded, a jar and a .so file

[alexarchambault]

@david-bouyssie Are you using a particular Ammonite version? I don't get any JAR with import $ivy.`com.almworks.sqlite4java:libsqlite4java-linux-amd64:1.0.392` , repl.sess.frames.flatMap(_.classpath) stays empty (unlike in you apparently).

[david-bouyssie]

@alexarchambault I think it is linked to the fact that I previously did import the main dependency:

$ivy.`com.almworks.sqlite4java:sqlite4java:1.0.392`

However it was not in the same session if I remember correctly. I can do it again if you want to double check.

[alexarchambault]

So with the current nightlies and the upcoming releases (> 1.6.9), so files can be loaded with

interp.resolutionHooks += { fetch =>
  fetch.addArtifactTypes("so")
}

(ran in a cell prior to the one doing import $ivy).

[alexarchambault]

Also, doing import $ivy.`com.almworks.sqlite4java:libsqlite4java-linux-amd64:1.0.392` should also bring sqlite4java-1.0.392.jar, once a new release of coursier has been cut (> 2.0.0-RC2-6), and is used in Ammonite.

[david-bouyssie]

@alexarchambault great! Does this is also work similarly for .dll files on windows?

[alexarchambault]

Does this is also work similarly for .dll files on windows?

It should, yes.