Add pre-commit to the repo

This adds pre-commit which can be used to enforce consistent style
and common errors (like committing large files)

.drone.yml

@@ -13,6 +13,12 @@ steps:
     commands:
       - make test
 
+  - name: check
+    image: python:3
+    commands:
+      - pip install pre-commit==1.20.0
+      - make check
+
   - name: notify
     image: drillster/drone-email
     settings:

.pre-commit-config.yaml

@@ -0,0 +1,19 @@
+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-yaml
+        args:
+          - --allow-multiple-documents
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-merge-conflict
+  - repo: git://github.com/dnephin/pre-commit-golang
+    rev: v0.3.5
+    hooks:
+      - id: go-fmt
+      - id: go-imports
+      # - id: gometalinter
+      # - id: golangci-lint

LICENSE

@@ -7,17 +7,17 @@ AND DISTRIBUTION
 
    1. Definitions.
 
-      
+
 
 "License" shall mean the terms and conditions for use, reproduction, and distribution
 as defined by Sections 1 through 9 of this document.
 
-      
+
 
 "Licensor" shall mean the copyright owner or entity authorized by the copyright
 owner that is granting the License.
 
-      
+
 
 "Legal Entity" shall mean the union of the acting entity and all other entities
 that control, are controlled by, or are under common control with that entity.
@@ -26,31 +26,31 @@ or indirect, to cause the direction or management of such entity, whether
 by contract or otherwise, or (ii) ownership of fifty percent (50%) or more
 of the outstanding shares, or (iii) beneficial ownership of such entity.
 
-      
+
 
 "You" (or "Your") shall mean an individual or Legal Entity exercising permissions
 granted by this License.
 
-      
+
 
 "Source" form shall mean the preferred form for making modifications, including
 but not limited to software source code, documentation source, and configuration
 files.
 
-      
+
 
 "Object" form shall mean any form resulting from mechanical transformation
 or translation of a Source form, including but not limited to compiled object
 code, generated documentation, and conversions to other media types.
 
-      
+
 
 "Work" shall mean the work of authorship, whether in Source or Object form,
 made available under the License, as indicated by a copyright notice that
 is included in or attached to the work (an example is provided in the Appendix
 below).
 
-      
+
 
 "Derivative Works" shall mean any work, whether in Source or Object form,
 that is based on (or derived from) the Work and for which the editorial revisions,
@@ -59,7 +59,7 @@ original work of authorship. For the purposes of this License, Derivative
 Works shall not include works that remain separable from, or merely link (or
 bind by name) to the interfaces of, the Work and Derivative Works thereof.
 
-      
+
 
 "Contribution" shall mean any work of authorship, including the original version
 of the Work and any modifications or additions to that Work or Derivative
@@ -74,7 +74,7 @@ for the purpose of discussing and improving the Work, but excluding communicatio
 that is conspicuously marked or otherwise designated in writing by the copyright
 owner as "Not a Contribution."
 
-      
+
 
 "Contributor" shall mean Licensor and any individual or Legal Entity on behalf
 of whom a Contribution has been received by Licensor and subsequently incorporated

Makefile

@@ -29,6 +29,16 @@ test:
 	@go tool cover -func=coverage.out | awk -v target=80.0% \
 		'/^total:/ { print "Total coverage: " $$3 " Minimum coverage: " target; if ($$3+0.0 >= target+0.0) print "ok"; else { print "fail"; exit 1; } }'
 
+# Installs pre-commit hooks
+.PHONY: install-hooks
+install-hooks:
+	pre-commit install --install-hooks
+
+# Checks files for encryption
+.PHONY: check
+check:
+	pre-commit run --all-files
+
 .PHONY: clean
 clean:
 	rm -f ./minitor-go

config.go

@@ -2,10 +2,11 @@ package main
 
 import (
 	"errors"
-	"gopkg.in/yaml.v2"
 	"io/ioutil"
 	"log"
 	"os"
+
+	"gopkg.in/yaml.v2"
 )
 
 // Config type is contains all provided user configuration

metrics.go

@@ -2,10 +2,10 @@ package main
 
 import (
 	"fmt"
-	"github.com/prometheus/client_golang/prometheus"
-	// "github.com/prometheus/client_golang/prometheus/promauto"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"net/http"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 )
 
 // TODO: Not sure if this is the best way to handle. A global instance for

test/invalid-config-missing-alerts.yml

@@ -6,4 +6,3 @@ monitors:
     alert_down: [ 'alert_down', 'log_shell', 'log_command' ]
     # alert_every: -1
     alert_every: 0
-