I’ve been working today on migrating a SBT project to Bazel. I’ve taken a few wrong turns, and I’ll document them later, but this will be my working doc and I’ll add some failures to the end.<\/p>\n
Two major components – Bazel’s generate_workspace<\/a> tool, and SBT’s make-pom<\/a> command. You’ll create a POM file with the dependencies and repos. Next, build <\/p>\n So, on to the failures: I’ve been working today on migrating a SBT project to Bazel. I’ve taken a few wrong turns, and I’ll document them later, but this will be my working doc and I’ll add some failures to the end. Two major components – Bazel’s generate_workspace tool, and SBT’s make-pom command. You’ll create a POM file with the … Continue reading Migrating a SBT project to Bazel.<\/span>
\n
\n ted:growth$ sbt make-pom
\n[warn] Executing in batch mode.
\n[warn] For better performance, hit [ENTER] to switch to interactive mode, or
\n[warn] consider launching sbt without any commands, or explicitly passing 'shell'
\n[info] Loading project definition from \/Users\/ted\/dev\/growth\/project
\nSLF4J: Failed to load class \"org.slf4j.impl.StaticLoggerBinder\".
\nSLF4J: Defaulting to no-operation (NOP) logger implementation
\nSLF4J: See http:\/\/www.slf4j.org\/codes.html#StaticLoggerBinder for further details.
\n[info] Set current project to growth (in build file:\/Users\/ted\/dev\/growth\/)
\n[warn] Multiple resolvers having different access mechanism configured with same name 'Artifactory-lib'. To avoid conflict, Remove duplicate project resolvers (`resolvers`) or rename publishing resolver (`publishTo`).
\n[info] Wrote \/Users\/ted\/dev\/growth\/target\/scala-2.11\/growth_2.11-resurrector-9449dfb1de3b816c5fd74c4948f16496b38952ab.pom
\n[success] Total time: 5 s, completed Jun 14, 2017 4:00:17 PM
\n<\/code>
\nThis generates a pom file, but not exactly as generate_workspace wants it. It requires a directory with a pom.xml, so go ahead and turn that into one by making a tempdir and copying the file to it TMPDIR=\"$(mktemp -d)\"; cp \/Users\/ted\/dev\/growth\/target\/scala-2.11\/growth_2.11-resurrector-9449dfb1de3b816c5fd74c4948f16496b38952ab.pom \"${TMPDIR}\/pom.xml\"<\/code><\/p>\n
\nI initially tried to do my own workspace code generation. I took the output of sbt libraryDependencies<\/code> and turned it into mvn_jar stanzas via script. This didn’t work, for the simple reason that I wasn’t doing it transitively, they mention that in the generate_workspace docs. I also tried specifying that list of deps as a big list of –archive stanzas; That turned out to be a mistake, mostly because of alternate repos. I also had to clean out a broken SBT set of repos; bazel does not play well with repeated repo definitions, while SBT is happy to ignore them.<\/p>\n","protected":false},"excerpt":{"rendered":"