From 27bdfad05fde357bd860fd590d4e19aba0233e58 Mon Sep 17 00:00:00 2001
From: Nathan Rajlich <nathan@tootallnate.net>
Date: Tue, 1 Nov 2016 17:42:35 -0700
Subject: [PATCH 1/4] add default values to `--help` output

Fixes #38.
---
 src/index.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/index.js b/src/index.js
index ff98cb0..5fcef93 100644
--- a/src/index.js
+++ b/src/index.js
@@ -141,7 +141,7 @@ class Args {
       case parseInt:
         return ['<n>', parseInt]
       default:
-        return false
+        return ['']
     }
   }
 
@@ -274,14 +274,17 @@ class Args {
     })[0].usage.length
 
     for (const item of items) {
-      let usage = item.usage
+      let { usage, description } = item
       const difference = longest - usage.length
 
       // Compensate the difference to longest property with spaces
       usage += ' '.repeat(difference)
 
       // Add some space around it as well
-      parts.push('  ' + chalk.yellow(usage) + '  ' + chalk.dim(item.description))
+      if ('undefined' !== typeof item.defaultValue) {
+        description += ` (defaults to ${JSON.stringify(item.defaultValue)})`
+      }
+      parts.push('  ' + chalk.yellow(usage) + '  ' + chalk.dim(description))
     }
 
     return parts

From 2b6f32fe7b7cda768f943e5b77d7e31812c0f2d1 Mon Sep 17 00:00:00 2001
From: Nathan Rajlich <nathan@tootallnate.net>
Date: Tue, 1 Nov 2016 18:05:09 -0700
Subject: [PATCH 2/4] fix `xo` lint

---
 src/index.js  | 4 ++--
 test/index.js | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/index.js b/src/index.js
index 5fcef93..48fd7ba 100644
--- a/src/index.js
+++ b/src/index.js
@@ -274,14 +274,14 @@ class Args {
     })[0].usage.length
 
     for (const item of items) {
-      let { usage, description } = item
+      let {usage, description} = item
       const difference = longest - usage.length
 
       // Compensate the difference to longest property with spaces
       usage += ' '.repeat(difference)
 
       // Add some space around it as well
-      if ('undefined' !== typeof item.defaultValue) {
+      if (typeof item.defaultValue !== 'undefined') {
         description += ` (defaults to ${JSON.stringify(item.defaultValue)})`
       }
       parts.push('  ' + chalk.yellow(usage) + '  ' + chalk.dim(description))
diff --git a/test/index.js b/test/index.js
index 192d5ee..9e6e7b6 100644
--- a/test/index.js
+++ b/test/index.js
@@ -89,7 +89,7 @@ test('command aliases', async t => {
   }
 
   result = await run('help')
-  const regexes = [/binary, b/, /cmd/, /-a, --abc \[value\]/]
+  const regexes = [/binary, b/, /cmd/, /-a, --abc \[value]/]
   for (const regex of regexes) {
     t.regex(result, regex)
   }

From 83df1046bb90c323ce207f11ad8dd304cfbe0fed Mon Sep 17 00:00:00 2001
From: Nathan Rajlich <nathan@tootallnate.net>
Date: Wed, 2 Nov 2016 17:15:27 -0700
Subject: [PATCH 3/4] don't set a default value for `--version`

We don't want to include it in the `--help` output
as a default value.
---
 src/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.js b/src/index.js
index 48fd7ba..ae953f0 100644
--- a/src/index.js
+++ b/src/index.js
@@ -337,7 +337,7 @@ class Args {
 
     if (version) {
       // If it exists, register it as a default option
-      this.option('version', 'Output the version number', version)
+      this.option('version', 'Output the version number')
 
       // And immediately output it if used in command line
       if (this.raw.v || this.raw.version) {

From 6de8688979d8586956cf211f3d0490c5f0026cee Mon Sep 17 00:00:00 2001
From: Nathan Rajlich <nathan@tootallnate.net>
Date: Wed, 2 Nov 2016 17:23:22 -0700
Subject: [PATCH 4/4] use enabled/disabled for boolean default values

In --help
---
 src/index.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/index.js b/src/index.js
index ae953f0..2705ae3 100644
--- a/src/index.js
+++ b/src/index.js
@@ -197,7 +197,7 @@ class Args {
 
     // Set option defaults
     for (const option of this.details.options) {
-      if (!option.defaultValue) {
+      if (typeof option.defaultValue === 'undefined') {
         continue
       }
 
@@ -274,15 +274,19 @@ class Args {
     })[0].usage.length
 
     for (const item of items) {
-      let {usage, description} = item
+      let {usage, description, defaultValue} = item
       const difference = longest - usage.length
 
       // Compensate the difference to longest property with spaces
       usage += ' '.repeat(difference)
 
       // Add some space around it as well
-      if (typeof item.defaultValue !== 'undefined') {
-        description += ` (defaults to ${JSON.stringify(item.defaultValue)})`
+      if (typeof defaultValue !== 'undefined') {
+        if (typeof defaultValue === 'boolean') {
+          description += ` (${defaultValue ? 'enabled' : 'disabled'} by default)`
+        } else {
+          description += ` (defaults to ${JSON.stringify(defaultValue)})`
+        }
       }
       parts.push('  ' + chalk.yellow(usage) + '  ' + chalk.dim(description))
     }