Question
SBT seems to be ignoring dependencies defined in pom.xml for multi-project builds:
https://stackoverflow.com/questions/21378237
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Russianobject ApplicationBuild extends Build {
lazy val project = Project("root", file(".")).dependsOn(RootProject(riakJavaClient))
lazy val riakJavaClient = uri("git://github.com/basho/riak-java-client")
}
Output from dependency-graph:
[info] +-------------------+
[info] |my-project_2.10 [S]|
[info] | my-project |
[info] | 1.0 |
[info] +-------------------+
[info] | || |
[info] ----------------------------- || --------------------------------------
[info] | |--------------- |
[info] | ---------------| |
[info] v || |
[info] +---------------------------+ || |
[info] |unfiltered-scalate_2.10 [S]| || |
[info] | net.databinder | || |
[info] | 0.6.8 | || |
[info] +---------------------------+ || |
[info] | | | || |
[info] | | ---------------------------- || |
[info] | ----------------- | || |
[info] v | | || |
[info] +----------------------+ | | || |
[info] | scalate-core_2.10 | | | || |
[info] |org.fusesource.scalate| | | || |
[info] | 1.6.1 | | | || |
[info] +----------------------+ | | || |
[info] | | | | | || |
[info] | | ------ | | || |
[info] | --------- | | | || |
[info] v | | | v || v
[info] +------------------+ | | | +-------------------+ || +-----------------+
[info] |scala-compiler [S]| | | | |unfiltered_2.10 [S]| || |commons-validator|
[info] | org.scala-lang | | | | | net.databinder | || |commons-validator|
[info] | 2.10.0 | | | | | 0.6.8 | || | 1.4.0 |
[info] +------------------+ | | | +-------------------+ || +-----------------+
[info] | | ------------ | | | | | || | | |
[info] | | | | | | | --------- || ------------ | ------------
[info] | | | | | | ------------ | || | | |
[info] v | | v | v | | || v | |
[info] +-----------------+ | | +----------------------+ | +------------------------+ | | || +-----------------+ | |
[info] |scala-reflect [S]| | | |scalate-util_2.10 [S] | | |unfiltered-util_2.10 [S]| | | || |commons-beanutils| | |
[info] | org.scala-lang | | | |org.fusesource.scalate| | | net.databinder | | | || |commons-beanutils| | |
[info] | 2.10.0 | | | | 1.6.1 | | | 0.6.8 | | | || | 1.8.3 | | |
[info] +-----------------+ | | +----------------------+ | +------------------------+ | | || +-----------------+ | |
[info] | ----------- ---- | | | | | | || | | |
[info] | | | | | | | | | || ---------- | |
[info] | | ------------------ | | | | | || | | |
[info] | | | | ------------- | | | | || | | |
[info] | | | | | ------------- | | | || | | |
[info] | | | | | | ------------------------ | | || | | |
[info] | | | | | | | ---------------------------------- | || | | |
[info] | | | | | | | | -------------------------------|--| | | |
[info] | | | | | | | | | -------------------- | | | |
[info] | | | | | | | | | | | | | |
[info] v v v v v v v v v v v v v v
[info] +------------------+ +---------+ +------------------+ +-------------+ +-------------------------+ +---------------+ +----------------+
[info] | scala-library | |slf4j-api| | scala-library | |commons-codec| |riak-java-client_2.10 [S]| |commons-logging| |commons-digester|
[info] | org.scala-lang | |org.slf4j| | org.scala-lang | |commons-codec| | default | |commons-logging| |commons-digester|
[info] | 2.10.0 | | 1.6.1 | | 2.10.1 | | 1.4 | | 0.1-SNAPSHOT | | 1.1.1 | | 1.8 |
[info] |evicted by: 2.10.2| +---------+ |evicted by: 2.10.2| +-------------+ +-------------------------+ +---------------+ +----------------+
[info] +------------------+ +------------------+
[info] Note: The old tree layout is still available by using `dependency-tree`
The riak-java-client project should import all the libraries defined in its pom.xml, but is importing nothing.
Solution
RootProject and ProjectRef (just ProjectReference's in general) are to reference SBT projects so they fully resolvable and their dependencies handled properly (via appropriate Resolvers for file, svn, git and hg). It won't however work with non-SBT projects - under Maven, Ant, Gradle or similar. Just SBT ones.
You may want to give externalPom a try. I didn't, so can't comment on its use.
