fix --version option and improve installation section of docs

Author: jirfag

README.md

@@ -13,16 +13,9 @@ Sponsored by [GolangCI.com](https://golangci.com): SaaS service for running lint
    * [Install](#install)
    * [Quick Start](#quick-start)
    * [Comparison](#comparison)
-      * [<code>golangci-lint</code> vs <code>gometalinter</code>](#golangci-lint-vs-gometalinter)
-      * [<code>golangci-lint</code> vs Run Needed Linters Manually](#golangci-lint-vs-run-needed-linters-manually)
    * [Performance](#performance)
-      * [Comparison with gometalinter](#comparison-with-gometalinter)
    * [Supported Linters](#supported-linters)
-      * [Enabled By Default Linters](#enabled-by-default-linters)
-      * [Disabled By Default Linters (-E/--enable)](#disabled-by-default-linters--e--enable)
    * [Configuration](#configuration)
-      * [Command-Line Options](#command-line-options)
-      * [Configuration File](#configuration-file)
    * [False Positives](#false-positives)
    * [IDE integrations](#ide-integrations)
    * [Internals](#internals)
@@ -40,24 +33,36 @@ Short 1.5 min video demo of analyzing [beego](https://github.com/astaxie/beego).
 [![asciicast](https://asciinema.org/a/183662.png)](https://asciinema.org/a/183662)
 
 # Install
-Recommended way to install is:
+## CI Installation
+The most installations are done for CI (travis, circleci etc). It's important to have reproducable CI:
+don't start to fail all builds at one moment. With golangci-lint this can cappen if you
+use `--enable-all` and new linter is added or even without `--enable-all`: when one linter
+was upgraded from the upstream.
+
+Therefore it's highly recommended to install a fixed version of golangci-lint.
+Find needed version on the [releases page](https://github.com/golangci/golangci-lint/releases).
+
+The recommended way to install golangci-lint is the next:
 ```bash
-go get -u github.com/golangci/golangci-lint/cmd/golangci-lint
+curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s VERSION
 ```
 
-You can also install it by brew:
+Periodically update version of golangci-lint: we do active development
+and deliver a lot of improvements. But do it explicitly with checking of
+newly found issues.
+
+## Local Installation
+It's a not recommended for CI method. Do it only for the local development.
 ```bash
-brew install golangci/tap/golangci-lint
+go get -u github.com/golangci/golangci-lint/cmd/golangci-lint
 ```
 
-For CI you can use fast local installation:
+You can also install it by brew:
 ```bash
-curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh
+brew install golangci/tap/golangci-lint
+brew upgrade golangci/tap/golangci-lint
 ```
 
-Check the [releases page](https://github.com/golangci/golangci-lint/releases) to fix the version.
-
-
 # Quick Start
 To run golangci-lint execute:
 ```bash

README.md.tmpl

@@ -13,16 +13,9 @@ Sponsored by [GolangCI.com](https://golangci.com): SaaS service for running lint
    * [Install](#install)
    * [Quick Start](#quick-start)
    * [Comparison](#comparison)
-      * [<code>golangci-lint</code> vs <code>gometalinter</code>](#golangci-lint-vs-gometalinter)
-      * [<code>golangci-lint</code> vs Run Needed Linters Manually](#golangci-lint-vs-run-needed-linters-manually)
    * [Performance](#performance)
-      * [Comparison with gometalinter](#comparison-with-gometalinter)
    * [Supported Linters](#supported-linters)
-      * [Enabled By Default Linters](#enabled-by-default-linters)
-      * [Disabled By Default Linters (-E/--enable)](#disabled-by-default-linters--e--enable)
    * [Configuration](#configuration)
-      * [Command-Line Options](#command-line-options)
-      * [Configuration File](#configuration-file)
    * [False Positives](#false-positives)
    * [IDE integrations](#ide-integrations)
    * [Internals](#internals)
@@ -40,24 +33,36 @@ Short 1.5 min video demo of analyzing [beego](https://github.com/astaxie/beego).
 [![asciicast](https://asciinema.org/a/183662.png)](https://asciinema.org/a/183662)
 
 # Install
-Recommended way to install is:
+## CI Installation
+The most installations are done for CI (travis, circleci etc). It's important to have reproducable CI:
+don't start to fail all builds at one moment. With golangci-lint this can cappen if you
+use `--enable-all` and new linter is added or even without `--enable-all`: when one linter
+was upgraded from the upstream.
+
+Therefore it's highly recommended to install a fixed version of golangci-lint.
+Find needed version on the [releases page](https://github.com/golangci/golangci-lint/releases).
+
+The recommended way to install golangci-lint is the next:
 ```bash
-go get -u github.com/golangci/golangci-lint/cmd/golangci-lint
+curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s VERSION
 ```
 
-You can also install it by brew:
+Periodically update version of golangci-lint: we do active development
+and deliver a lot of improvements. But do it explicitly with checking of
+newly found issues.
+
+## Local Installation
+It's a not recommended for CI method. Do it only for the local development.
 ```bash
-brew install golangci/tap/golangci-lint
+go get -u github.com/golangci/golangci-lint/cmd/golangci-lint
 ```
 
-For CI you can use fast local installation:
+You can also install it by brew:
 ```bash
-curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh
+brew install golangci/tap/golangci-lint
+brew upgrade golangci/tap/golangci-lint
 ```
 
-Check the [releases page](https://github.com/golangci/golangci-lint/releases) to fix the version.
-
-
 # Quick Start
 To run golangci-lint execute:
 ```bash

pkg/commands/executor.go

@@ -18,7 +18,10 @@ type Executor struct {
 
 func NewExecutor(version, commit, date string) *Executor {
 	e := &Executor{
-		cfg: &config.Config{},
+		cfg:     &config.Config{},
+		version: version,
+		commit:  commit,
+		date:    date,
 	}
 
 	logrus.SetLevel(logrus.WarnLevel)
@@ -27,10 +30,6 @@ func NewExecutor(version, commit, date string) *Executor {
 	e.initRun()
 	e.initLinters()
 
-	e.version = version
-	e.commit = commit
-	e.date = date
-
 	return e
 }
 

pkg/commands/root.go

@@ -90,7 +90,7 @@ func (e *Executor) initRootFlagSet(fs *pflag.FlagSet) {
 	fs.StringVar(&e.cfg.Run.CPUProfilePath, "cpu-profile-path", "", wh("Path to CPU profile output file"))
 	fs.StringVar(&e.cfg.Run.MemProfilePath, "mem-profile-path", "", wh("Path to memory profile output file"))
 	fs.IntVarP(&e.cfg.Run.Concurrency, "concurrency", "j", getDefaultConcurrency(), wh("Concurrency (default NumCPU)"))
-	if e.commit != "" {
+	if e.date != "" {
 		fs.BoolVar(&e.cfg.Run.PrintVersion, "version", false, wh("Print version"))
 	}
 }