Package: wnpp Severity: wishlist Owner: Juan Manuel Méndez Rey <[email protected]> X-Debbugs-Cc: [email protected], [email protected]
* Package name : scala-2.12-bootstrap Version : 2.12.20 Upstream Author : Scala team, EPFL and Lightbend (Martin Odersky et al.) URL : https://www.scala-lang.org Source repo : https://github.com/scala/scala (branch 2.12.x) License : Apache-2.0 Programming Lang: Scala, Java Description : Scala 2.12 bootstrap reference compiler (STARR seed) The Scala compiler is written in Scala, so building Scala 2.12 from source requires a pre-existing Scala 2.12 compiler (the STARR -- Scala To Aid Recompilation). This is the classic self-hosting-compiler chicken-and-egg: you cannot start from javac (scalac is Scala) nor from the Scala 2.11 already in Debian (2.12 uses features 2.11 cannot compile). . This package ships the prebuilt Scala 2.12.20 reference compiler (library, reflect and compiler jars) used ONLY to bootstrap the src:scala-2.12 package from source. Once scala-2.12 is built it rebuilds itself (self-host) and this seed drops out of the closure -- the same stage0 model used by rustc, GHC and OpenJDK. . NOTE FOR FTP MASTERS / debian-devel: this is a deliberate, documented binary bootstrap seed and needs a bootstrap exemption, exactly as rustc/GHC/OpenJDK have. I am filing this ITP to make the package concrete; the exemption itself is a separate up-front discussion (see RFP #1125161). The seed is reproducible and is dropped after stage 1 (self-host demonstrated). Related ITPs: scala-2.12, sbt-util-interface (#1139638), sbt-compiler-interface (#1139639). Packaging: https://salsa.debian.org/mendezr/scala-2.12-bootstrap
