Use hs-tools scripts to simplify Travis script.

Also, we no longer need to write the version number to .travis.yml, because
we can infer it from the travis tag. We couldn't do that before, because it's
a bit of code we don't want to repeat in every repo. Now that it's common, we
can write it and download it into each repo's build.

.travis.yml

@@ -11,35 +11,26 @@ env:
     - secure: "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"
 
 cache:
+  timeout: 600
   directories:
+    - $HOME/.local
     - $HOME/.stack
 
-before_install:
-  - export PATH=$HOME/.local/bin:$PATH
-  - travis_retry curl -L https://github.com/TokTok/hs-tools/releases/download/v0.6/hs-tools-v0.6.tar.gz | tar xz -C $HOME
-
 script:
-  - hlint .
-  - stylish-haskell-lhs -i .
-  - git diff --exit-code
-  - stack --no-terminal test --coverage
-  - shc msgpack-types testsuite
-  - stack sdist --tar-dir .
+  - bash <(travis_retry curl -s https://raw.githubusercontent.com/TokTok/hs-tools/master/bin/travis-haskell) script
+  - eval $(travis-haskell env)
 
 deploy:
   provider: releases
   token:
     secure: "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"
-  file: msgpack-types-0.0.4.tar.gz
+  file: $PACKAGE-$VERSION.tar.gz
   skip_cleanup: true
   on:
     repo: TokTok/hs-msgpack-types
     tags: true
 
-after_deploy:
-  - mkdir -p "$HOME/.stack/upload"
-  - echo "{\"username\":\"$HACKAGE_USERNAME\",\"password\":\"$HACKAGE_PASSWORD\"}" > $HOME/.stack/upload/credentials.json
-  - stack --no-terminal upload .
+after_deploy: travis-haskell deploy
 
 # Only build pull requests and releases, don't build master on pushes,
 # except through api or cron.

BUILD.bazel

@@ -3,20 +3,17 @@ load("@rules_haskell//haskell:defs.bzl", "haskell_library")
 load("//third_party/haskell/hspec-discover:build_defs.bzl", "hspec_test")
 load("//tools/project:build_defs.bzl", "project")
 
-VERSION = "0.0.4"
-
 project(
     license = "hs-msgpack",
     standard_travis = True,
-    version = VERSION,
 )
 
 haskell_library(
     name = "hs-msgpack-types",
     srcs = glob(["src/**/*.*hs"]),
     compiler_flags = ["-Wno-unused-imports"],
     src_strip_prefix = "src",
-    version = VERSION,
+    version = "0.0.4",
     visibility = ["//visibility:public"],
     deps = [
         hazel_library("QuickCheck"),