Fix travis finally

.travis.sh

@@ -1,46 +1,51 @@
 #!/bin/sh
 
-set -e
+edo()
+{
+	printf "\\033[0;34m%s\\033[0m\\n" "$*" 1>&2
+    "$@" || exit 2
+}
 
 # install GHCs
-./ghcup -v install 8.2.2
-./ghcup -v install 8.4.3
-./ghcup -v install 8.6.1
+edo ./ghcup -v install 8.2.2
+edo ./ghcup -v install 8.4.3
+edo ./ghcup -v install 8.6.1
 
 # set GHC
-./ghcup -v set 8.6.1
-./ghcup -v set 8.4.3
+edo ./ghcup -v set 8.6.1
+edo ./ghcup -v set 8.4.3
 
-# rm GHC
-./ghcup -v rm 8.6.1
-./ghcup -v rm 8.4.3
+# rm G HC
+edo ./ghcup -v rm 8.6.1
+edo ./ghcup -v rm 8.4.3
 
 # set GHC
-./ghcup -v set 8.2.2
+edo ./ghcup -v set 8.2.2
 
-export PATH="$HOME/.cabal/bin:$HOME/.ghcup/bin:$PATH"
+export PATH="$HOME/.cabal/bin:$HOME/.ghcup/bin:$HOME/.local/bin:$PATH"
 
 # TODO: exceeds maximum time limit of travis
 # compile GHC from source
 #./ghcup -v compile 8.4.3 ghc-8.2.2
 
 # install cabal-install
-./ghcup -v install-cabal
+edo ./ghcup -v install-cabal
 
+edo cabal update
+edo cabal install cabal-install
 
 # https://github.com/haskell/cabal/issues/5516
-mkdir -p ~/.cabal/store/ghc-8.2.2/package.db
-cabal new-update
-
-# this shouldn't be necessary, file bug upstream
-cabal new-install --symlink-bindir="$HOME"/.ghcup/bin cabal-install
-mv -f "$HOME"/.ghcup/bin/cabal "$HOME"/.cabal/bin/cabal
+edo mkdir -p ~/.cabal/store/ghc-8.2.2/package.db
+edo cabal new-update
 
 # install shellcheck
-cabal new-install ShellCheck
+edo cabal new-install ShellCheck
 
 # check our script for errors
-shellcheck ghcup
+edo shellcheck ghcup
 
 # self update
-ghcup self-update
+edo mkdir -p "$HOME"/.local/bin
+edo ./ghcup self-update
+
+edo ghcup show