Fix and ignore binary compatibility issues

build.sc

@@ -51,11 +51,12 @@ trait SafeDeps extends ScalaModule {
 }
 
 trait MiMaChecks extends Mima {
-  def mimaPreviousVersions = Seq("0.9.0", "0.9.1", "0.9.2", "0.9.3", "0.10.0")
+  def mimaPreviousVersions = Seq("0.9.0", "0.9.1", "0.9.2", "0.9.3", "0.10.0", "0.10.1", "0.10.2", "0.10.3", "0.10.4")
   override def mimaBinaryIssueFilters: T[Seq[ProblemFilter]] = Seq(
     ProblemFilter.exclude[ReversedMissingMethodProblem]("os.PathConvertible.isCustomFs"),
     // this is fine, because ProcessLike is sealed (and its subclasses should be final)
-    ProblemFilter.exclude[ReversedMissingMethodProblem]("os.ProcessLike.joinPumperThreadsHook")
+    ProblemFilter.exclude[ReversedMissingMethodProblem]("os.ProcessLike.joinPumperThreadsHook"),
+    ProblemFilter.exclude[MissingTypesProblem]("os.proc$")
   )
 }
 

os/src/ProcessOps.scala

@@ -252,7 +252,16 @@ case class proc(command: Shellable*) {
 }
 
 object proc {
+
+  /**
+   * The env passed by default to child processes
+   */
   val env = new scala.util.DynamicVariable[Map[String, String]](sys.env)
+
+  // TODO: Delete when in binary compatibity breaking window
+  def andThen[T](f: proc => T): Seq[Shellable] => T = s => f(apply(s))
+  // TODO: Delete when in binary compatibity breaking window
+  def compose[T](f: T => Seq[Shellable]): T => proc = t => apply(f(t))
 }
 
 /**

os/test/src/SubprocessTests.scala

@@ -149,10 +149,10 @@ object SubprocessTests extends TestSuite {
     test("envWithValue") {
       if (Unix()) {
         def envValue() = os.proc("bash", "-c", "echo \"$TEST_ENV_FOO\"").call().out.lines().head
-        
+
         val before = envValue()
         assert(before == "")
-        
+
         os.proc.env.withValue(Map("TEST_ENV_FOO" -> "bar")) {
           val res = envValue()
           assert(res == "bar")