lint/pre-commit/ci: replace shfmt => beautysh

.pre-commit-config.yaml

@@ -9,8 +9,9 @@ repos:
     hooks:
     - id: flake8
       language_version: python3
--   repo: https://github.com/casperdcl/sh
+-   repo: https://github.com/lovesegfault/beautysh
     rev: master
     hooks:
-    - id: shfmt
-      language: golang
+    - id: beautysh
+      language_version: python3
+      args: [-i, '2']  # 2-space indentaion

.travis.yml

@@ -24,7 +24,7 @@ stages:
 jobs:
   include:
   # patch formatting checks
-  - name: "Python formatting"
+  - name: "Check patch formatting"
     stage: check
     os: linux
     language: python
@@ -32,13 +32,6 @@ jobs:
     before_install:
     install:
     script: ./scripts/ci/check_patch.sh
-  - name: "Script formatting"
-    os: linux
-    language: go
-    go: 1.13
-    before_install:
-    install:
-    script: ./scripts/ci/check_scripts.sh
   # test jobs
   - name: "3.7 on Windows"
     stage: test

scripts/ci/check_patch.sh

@@ -9,7 +9,4 @@ pip install Pygments collective.checkdocs pre-commit
 python setup.py checkdocs
 
 # stop the build if there are any formatting errors
-err=0
-pre-commit run --all-files black || err=1
-pre-commit run --all-files flake8 || err=1
-exit $err
+pre-commit run --all-files

scripts/ci/check_scripts.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-
-set -x
-set -e
-
-GO111MODULE=on go get mvdan.cc/sh/v3/cmd/shfmt
-
-# stop the build if there are any formatting errors
-shfmt -l -d -i 2 -ci -w .