cmd/install: Add flag to install version specified in dot file

Closes #21

cmd/hvm/cmd.go

@@ -40,6 +40,7 @@ type application struct {
 	Name            string // name of the application
 	RepositoryName  string // name of the GitHub repository without the .git extension
 	RepositoryOwner string // account owner of the GitHub repository
+	WorkingDir      string // current working directory
 }
 
 // A configuration contains the current configuration parameters from environment
@@ -150,9 +151,13 @@ func initApp() {
 	userCacheDir, err := os.UserCacheDir()
 	cobra.CheckErr(err)
 
+	wd, err := os.Getwd()
+	cobra.CheckErr(err)
+
 	App.CacheDirPath = filepath.Join(userCacheDir, App.Name)
 	App.ConfigFilePath = viper.ConfigFileUsed()
 	App.DefaultDirPath = filepath.Join(userCacheDir, App.Name, App.DefaultDirName)
+	App.WorkingDir = wd
 
 	err = os.MkdirAll(App.CacheDirPath, 0777)
 	cobra.CheckErr(err)

cmd/hvm/install.go

@@ -26,6 +26,7 @@ import (
 	"github.com/jmooring/hvm/pkg/archive"
 	"github.com/jmooring/hvm/pkg/helpers"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 )
 
 // installCmd represents the install command
@@ -48,6 +49,8 @@ you will be prompted to add it when installation is complete.`,
 
 func init() {
 	rootCmd.AddCommand(installCmd)
+	installCmd.Flags().Bool("useVersionInDotFile", false, "Install the version specified by the "+App.DotFileName+" file\nin the current directory")
+	viper.BindPFlag("useVersionInDotFile", installCmd.Flags().Lookup("useVersionInDotFile"))
 }
 
 // install sets the version of the Hugo executable to use when version
@@ -56,13 +59,24 @@ func install() error {
 	repo := newRepository()
 	asset := newAsset()
 
-	msg := "Select a version to use when version management is disabled"
-	err := repo.selectTag(asset, msg)
-	if err != nil {
-		return err
-	}
-	if asset.tag == "" {
-		return nil // the user did not select a tag; do nothing
+	if viper.GetBool("useVersionInDotFile") {
+		version, err := getVersionFromDotFile(filepath.Join(App.WorkingDir, App.DotFileName))
+		if err != nil {
+			return err
+		}
+		asset.tag = version
+		if asset.tag == "" {
+			return fmt.Errorf("the current directory does not contain an " + App.DotFileName + " file")
+		}
+	} else {
+		msg := "Select a version to use when version management is disabled"
+		err := repo.selectTag(asset, msg)
+		if err != nil {
+			return err
+		}
+		if asset.tag == "" {
+			return nil // the user did not select a tag; do nothing
+		}
 	}
 
 	exists, err := helpers.Exists(filepath.Join(App.CacheDirPath, asset.tag))

cmd/hvm/status.go

@@ -186,7 +186,9 @@ func getVersionFromDotFile(path string) (string, error) {
 		return "", err
 	}
 	if !exists {
-		return "", fmt.Errorf("the %s file in the current directory contains an invalid version (%s): %s", App.DotFileName, dotHvmContent, theFix)
+		if !viper.GetBool("useVersionInDotFile") {
+			return "", fmt.Errorf("the %s file in the current directory contains an invalid version (%s): %s", App.DotFileName, dotHvmContent, theFix)
+		}
 	}
 
 	return (dotHvmContent), nil

cmd/hvm/testscripts/install_use_dot_file_fail.txt

@@ -0,0 +1,15 @@
+# User cache and config dirs (we use os.UserCacheDir and os.UserCongfigDir)
+[darwin] env HOME=home
+[darwin] mkdir "$HOME/Library/Caches"
+[darwin] mkdir "$HOME/Library/Application Support"
+[linux] env XDG_CACHE_HOME=cache
+[linux] env XDG_CONFIG_HOME=config
+[windows] env LocalAppData=cache
+[windows] env AppData=config
+
+# https://github.com/actions/runner-images/issues/602
+[darwin] skip
+
+# Test
+! exec hvm install --useVersionInDotFile
+stderr 'Error: the current directory does not contain an \.hvm file\n'

cmd/hvm/testscripts/install_use_dot_file_pass.txt

@@ -0,0 +1,20 @@
+# User cache and config dirs (we use os.UserCacheDir and os.UserCongfigDir)
+[darwin] env HOME=home
+[darwin] mkdir "$HOME/Library/Caches"
+[darwin] mkdir "$HOME/Library/Application Support"
+[linux] env XDG_CACHE_HOME=cache
+[linux] env XDG_CONFIG_HOME=config
+[windows] env LocalAppData=cache
+[windows] env AppData=config
+
+# https://github.com/actions/runner-images/issues/602
+[darwin] skip
+
+# Test
+exec hvm install --useVersionInDotFile
+stdout 'Downloading v0.54.0... done.\n'
+stdout 'Installation of v0.54.0 complete.\n'
+
+# Files
+-- .hvm --
+v0.54.0

cmd/hvm/testscripts/status-print-execpath_fail.txt

@@ -0,0 +1,11 @@
+# User cache and config dirs (we use os.UserCacheDir and os.UserCongfigDir)
+[darwin] env HOME=home
+[darwin] mkdir "$HOME/Library/Caches"
+[darwin] mkdir "$HOME/Library/Application Support"
+[linux] env XDG_CACHE_HOME=cache
+[linux] env XDG_CONFIG_HOME=config
+[windows] env LocalAppData=cache
+[windows] env AppData=config
+
+# Test
+! exec hvm status --printExecPath

public/categories/index.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title>Categories on </title>
+    <link>/categories/</link>
+    <description>Recent content in Categories on </description>
+    <generator>Hugo -- gohugo.io</generator><atom:link href="/categories/index.xml" rel="self" type="application/rss+xml" />
+  </channel>
+</rss>

public/index.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title></title>
+    <link>/</link>
+    <description>Recent content on </description>
+    <generator>Hugo -- gohugo.io</generator><atom:link href="/index.xml" rel="self" type="application/rss+xml" />
+  </channel>
+</rss>

public/sitemap.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
+  xmlns:xhtml="http://www.w3.org/1999/xhtml">
+  <url>
+    <loc>/</loc>
+  </url><url>
+    <loc>/categories/</loc>
+  </url><url>
+    <loc>/tags/</loc>
+  </url>
+</urlset>

public/tags/index.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title>Tags on </title>
+    <link>/tags/</link>
+    <description>Recent content in Tags on </description>
+    <generator>Hugo -- gohugo.io</generator><atom:link href="/tags/index.xml" rel="self" type="application/rss+xml" />
+  </channel>
+</rss>