@frgomes Building instructions for the main repo are outdated. See the main repo's travis build for the new publishLocal sequence.

Missing name field in default.properties

This repo badly needs some continuous integration.

I managed to get this working, rendering works etc. Now I tried to replace the Main object with simpler hello world stuff like this:

package demo

object Main {
 def main(a:Array[String]) = {
   println("woowowo")
 }
}

And everything worked as expected. But as soon as I complicated it a tiny bit, it didn't compile anymore. Did I miss something?

package demo

object Main {
 def main(a:Array[String]) = {
   println("woowowo".replaceAll("w","Y"))
 }
}

output

$ sbt run
[info] Loading project definition from /private/tmp/scala-native-example/project
[info] Set current project to scala-native-example (in build file:/private/tmp/scala-native-example/)
[info] Compiling 1 Scala source to /private/tmp/scala-native-example/target/scala-2.11/classes...
[info] Linking NIR (686 ms)
[error] cannot link: @java.util.regex.Matcher
[error] cannot link: @java.util.regex.Matcher::replaceAll_class.java.lang.String_class.java.lang.String
[error] cannot link: @java.util.regex.Pattern
[error] cannot link: @java.util.regex.Pattern$
[error] cannot link: @java.util.regex.Pattern$::compile_class.java.lang.String_class.java.util.regex.Pattern
[error] cannot link: @java.util.regex.Pattern::matcher_trait.java.lang.CharSequence_class.java.util.regex.Matcher
[error] unable to link
[error] (*:nativeLink) unable to link
[error] Total time: 5 s, completed 14-Mar-2017 15:29:27

Now that we've official documentation location at http://scala-native.readthedocs.io/en/latest/ it's best to consolidate all of our efforts and move most of the docs there. Having similar information in multiple location is a recipe for accidentally forgetting to update one of them.

• Scala CLA validation
• scalafmt check
• template check

Currenly readme assumes Debian Linux. It would be great to also include steps necessary to install LLVM and Clang on macOS.

ditto.

Hi,
I just cloned this project (to Ubuntu 16.04)
It builds fine, and runs, but the image0.ppm file is reporting its height as 22331248

the top 2 lines of the output are:

P3
800 22331248

If I edit the height to be 600, to match the scala src, I can then open the file, although the colours are very diifferent from the png file supplied.

If I explicitly set the type of W and H to Int, it runs quicker, (42s vs 64s) and the width reported is:

P3
800 18177904

again if I edit the height to be 600, I get (nearly) the same png, but still very different colours to the example supplied.

Nothing obviously wrong in the source scala. I haven't changed any of the project files, and just did:

sbt run

Hi there,

I'm trying to compile this project on an ubuntu x64 virutal machine (Ubuntu 14.04.3 LTS).
I have followed the scala native installation instructions.

I had some issues relative to the RE2 library. The package libre2-dev was not available for this version of ubuntu. So I used the unstable debian package instead.

However I'm still having an error during the compilation (sbt run):

[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_new':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x281): undefined reference to `re2::RE2::RE2(re2::StringPiece const&, re2::RE2::Options const&)'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x29a): undefined reference to `re2::RE2::RE2(re2::StringPiece const&)'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_delete':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x2dd): undefined reference to `re2::RE2::~RE2()'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_num_capturing_groups':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x321): undefined reference to `re2::RE2::NumberOfCapturingGroups() const'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_find_named_capturing_groups':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x33d): undefined reference to `re2::RE2::NamedCapturingGroups() const'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_match':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x45e): undefined reference to `re2::RE2::Match(re2::StringPiece const&, unsigned long, unsigned long, re2::RE2::Anchor, re2::StringPiece*, int) const'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_replace_re':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x57c): undefined reference to `re2::RE2::Replace(std::string*, re2::RE2 const&, re2::StringPiece const&)'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_global_replace_re':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x6ec): undefined reference to `re2::RE2::GlobalReplace(std::string*, re2::RE2 const&, re2::StringPiece const&)'
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp.o: In function `scalanative_cre2_quote_meta':
[error] /home/ubuntu/workspace/scala-native.g8/target/scala-2.11/native/lib/cre2.cpp:(.text+0x845): undefined reference to `re2::RE2::QuoteMeta(re2::StringPiece const&)'

It seems that some RE2 files are not accessible or missing.
Any help is welcomed!

Thanks.

The following instructions should just work:

$ find $HOME/.ivy2 -type d -name '*scala-native*' | xargs rm -r -f
$ sbt clean package nativeLink

Observe that I'm making sure that we clean whatever we have in the local Ivy repository before we start. This is a critical step! i.e: always, always! make sure we build from a clean slate!

People trying Scala Native for the first time will be building their first app from a completely clean slate. So we must guarantee we test our build from a complete clean slate.

By the way, it's critical that the documentation is always in sync with the build script. Otherwise, people trying Scala Native for the first time will have troubles, will not be able to fix it (obviously, since they are complete newbies on the matter!) and will end up asking things in the gitter room.

In other words, before commiting changes, the entire build must be performed in a clean slate. If things fail (which is the case at the moment), the change cannot be pushed onto the repository otherwise new users (and even regular users!) will be doomed to face troubles.

Hi, the "script for Debian Jessie" link in README.md on https://github.com/scala-native/scala-native-example points to a gist of yours that gives a 404.