Use glamour's 'auto' style per default

README.md

@@ -73,7 +73,9 @@ This defaults to the ANSI-aware `less -r` if `$PAGER` is not explicitly set.
 
 ### Styles
 
-You can choose a style with the `-s` flag (`dark` being the default):
+You can choose a style with the `-s` flag. When no flag is provided `glow` tries
+to detect your terminal's current background color and automatically picks
+either the `dark` or the `light` style for you.
 
 ```bash
 glow -s [dark|light]

go.mod

@@ -3,7 +3,7 @@ module github.com/charmbracelet/glow
 go 1.13
 
 require (
-	github.com/charmbracelet/glamour v0.1.0
+	github.com/charmbracelet/glamour v0.1.1-0.20200114010931-28cbdae8e7a9
 	github.com/dlclark/regexp2 v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.4
 	github.com/spf13/cobra v0.0.5

go.sum

@@ -14,8 +14,8 @@ github.com/alecthomas/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8/go.mod h1:MR
 github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkxI1zYWl1QLnEqAqEARBEYa8FQnQcY=
 github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
-github.com/charmbracelet/glamour v0.1.0 h1:BHCtc+YJjoBjNUnFKBtXyyM4Bp9u7L2kf49qV+/AGYw=
-github.com/charmbracelet/glamour v0.1.0/go.mod h1:Z1C2JkVGBom/RYfoKcPBZ81lHMR3xp3W6OCLNWWEIMc=
+github.com/charmbracelet/glamour v0.1.1-0.20200114010931-28cbdae8e7a9 h1:bFDASzHqTkOChp6d/vJTec7pezqw0htRcsZLF7wJRow=
+github.com/charmbracelet/glamour v0.1.1-0.20200114010931-28cbdae8e7a9/go.mod h1:o4qO9f0Hr86NartqrG8FLNZyNOB1I8r9hN8l8tPNzqw=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
@@ -31,6 +31,8 @@ github.com/dlclark/regexp2 v1.1.6/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55k
 github.com/dlclark/regexp2 v1.2.0 h1:8sAhBGEM0dRWogWqWyQeIJnxjWO6oIjl8FKqREDsGfk=
 github.com/dlclark/regexp2 v1.2.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/google/goterm v0.0.0-20190703233501-fc88cf888a3f h1:5CjVwnuUcp5adK4gmY6i72gpVFVnZDP2h5TmPScB6u4=
+github.com/google/goterm v0.0.0-20190703233501-fc88cf888a3f/go.mod h1:nOFQdrUlIlx6M6ODdSpBj1NVA+VgLC6kmw60mkw34H4=
 github.com/gorilla/csrf v1.6.0/go.mod h1:7tSf8kmjNYr7IWDCYhd3U8Ck34iQ/Yw5CJu7bAkHEGI=
 github.com/gorilla/handlers v1.4.1/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/OAirnOIQ=
 github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
@@ -39,8 +41,6 @@ github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
-github.com/logrusorgru/aurora v0.0.0-20191116043053-66b7ad493a23 h1:Wp7NjqGKGN9te9N/rvXYRhlVcrulGdxnz8zadXWs7fc=
-github.com/logrusorgru/aurora v0.0.0-20191116043053-66b7ad493a23/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
 github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
 github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
@@ -55,6 +55,8 @@ github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrk
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/muesli/reflow v0.0.0-20191216070243-e5efeac4e302 h1:jOh3Kh03uOFkRPV3PI4Am5tqACv2aELgbPgr7YgNX00=
 github.com/muesli/reflow v0.0.0-20191216070243-e5efeac4e302/go.mod h1:I9bWAt7QTg/que/qmUCJBGlj7wEq8OAFBjPNjc6xK4I=
+github.com/muesli/termenv v0.0.0-20200114005430-a7aeffd54956 h1:OZIYilqRi/+iIIY/9SfuRpZIujheG5Stml2tI1PpAkM=
+github.com/muesli/termenv v0.0.0-20200114005430-a7aeffd54956/go.mod h1:QAW21ZWi5eDIAoYsevV52sibdVVCl44P+TvI0C0VKEU=
 github.com/nkovacs/streamquote v0.0.0-20170412213628-49af9bddb229/go.mod h1:0aYXnNPJ8l7uZxf45rWW1a/uME32OF0rhiYGNQ2oF2E=
 github.com/olekukonko/tablewriter v0.0.4 h1:vHD/YYe1Wolo78koG299f7V/VAS08c6IpCLn+Ejf/w8=
 github.com/olekukonko/tablewriter v0.0.4/go.mod h1:zq6QwlOf5SlnkVbMSr5EoBv3636FWnp+qbPhuoO21uA=

main.go

@@ -217,6 +217,6 @@ func init() {
 	rootCmd.Version = Version
 
 	rootCmd.Flags().BoolVarP(&pager, "pager", "p", false, "display with pager")
-	rootCmd.Flags().StringVarP(&style, "style", "s", "dark", "style name or JSON path")
+	rootCmd.Flags().StringVarP(&style, "style", "s", "auto", "style name or JSON path")
 	rootCmd.Flags().UintVarP(&width, "width", "w", 100, "word-wrap at width")
 }