Synchronise ghci-package version with ghc-package

In order to simplify the task, the version munging logic has
been radically simplified:

Previously, in cases where the version contained dates as version components,
the build-system would munge the version of the stage1 ghc package before
registering the `ghc` package.

However, this hack was already questionable at the time of its introduction
(c.f. 7b45c46cbabe1288ea87bd9b94c57e010ed17e60).
Simplifying the build-systems by avoiding such hacks may also help the
shaking-up-ghc effort.

So now we simply munge directly via the `.cabal` files, which gives a simpler
picture, as now every stage is munged the same. Munging is only active when
the first patch-level version component is a date. So stable snapshots and release
candidates are unaffacted (as those have the date in the second patch-level
version component)

Reviewers: simonmar, bgamari, austin, thomie, ezyang

Reviewed By: bgamari, thomie, ezyang

Differential Revision: https://phabricator.haskell.org/D1673

1 files changed, 5 insertions, 1 deletions

diff --git a/boot b/boot
index 2ce7acbb06..18d43aabda 100755
--- a/boot
+++ b/boot
@@ -144,7 +144,10 @@ sub boot_pkgs {
 
     for $package (@library_dirs) {
         my $dir = &basename($package);
-        my @cabals = glob("$package/*.cabal");
+        my @cabals = glob("$package/*.cabal.in");
+        if ($#cabals < 0) {
+            @cabals = glob("$package/*.cabal");
+        }
         if ($#cabals > 0) {
             die "Too many .cabal file in $package\n";
         }
@@ -155,6 +158,7 @@ sub boot_pkgs {
             if (-f $cabal) {
                 $pkg = $cabal;
                 $pkg =~ s#.*/##;
+                $pkg =~ s/\.cabal.in$//;
                 $pkg =~ s/\.cabal$//;
                 $top = $package;
                 $top =~ s#[^/]+#..#g;