X-Git-Url: https://git.cyclocoop.org/?p=tool%2Fhledger.git;a=blobdiff_plain;f=script%2Fghc-pkg-clean;fp=script%2Fghc-pkg-clean;h=99b23e60f4bc1c0f3a77ef778c70ac8ca7b53573;hp=0000000000000000000000000000000000000000;hb=707b0a621cd3c97d5d7e22e855272b3f865a2d56;hpb=30e9b83c521f5149836e1ef0b544676370721efe

diff --git a/script/ghc-pkg-clean b/script/ghc-pkg-clean
new file mode 100755
index 0000000..99b23e6
--- /dev/null
+++ b/script/ghc-pkg-clean
@@ -0,0 +1,15 @@
+#!/bin/sh -eux
+
+# DESCRIPTION: unregister broken GHC packages.
+# Run this a few times to resolve dependency rot in installed packages.
+# ghc-pkg-clean -f cabal/dev/packages*.conf also works.
+packages=$(ghc-pkg check $* 2>&1 |
+	grep problems |
+	awk '{print $6}' |
+	sed -e 's/:$//'
+ )
+for p in $packages
+ do
+	echo unregistering $p
+	ghc-pkg "$@" unregister $p
+ done