refactor(gallery): use freeze for gallery images (#322)

examples/artichokes/artichokes.md

@@ -0,0 +1,68 @@
+Glamour
+=======
+
+A casual introduction. 你好世界!
+
+## Let’s talk about artichokes
+
+The _artichoke_ is mentioned as a garden plant in the 8th century BC by Homer
+**and** Hesiod. The naturally occurring variant of the artichoke, the cardoon,
+which is native to the Mediterranean area, also has records of use as a food
+among the ancient Greeks and Romans. Pliny the Elder mentioned growing of
+_carduus_ in Carthage and Cordoba.
+
+> He holds him with a skinny hand,
+> ‘There was a ship,’ quoth he.
+> ‘Hold off! unhand me, grey-beard loon!’
+> An artichoke, dropt he.
+
+--Samuel Taylor Coleridge, [The Rime of the Ancient Mariner][rime]
+
+[rime]: https://poetryfoundation.org/poems/43997/
+
+## Other foods worth mentioning
+
+1. Carrots
+1. Celery
+1. Tacos
+    * Soft
+    * Hard
+1. Cucumber
+
+## Things to eat today
+
+* [x] Carrots
+* [x] Ramen
+* [ ] Currywurst
+
+### Power levels of the aforementioned foods
+
+| Name       | Power | Comment          |
+| ---        | ---   | ---              |
+| Carrots    | 9001  | It’s over 9000?! |
+| Ramen      | 9002  | Also over 9000?! |
+| Currywurst | 10000 | What?!           |
+
+## Currying Artichokes
+
+Here’s a bit of code in [Haskell](https://haskell.org), because we are fancy.
+Remember that to compile Haskell you’ll need `ghc`.
+
+```haskell
+module Main where
+
+import Data.Function ( (&) )
+import Data.List ( intercalculate )
+
+hello :: String -> String
+hello s =
+    "Hello, " ++ s ++ "."
+
+main :: IO ()
+main =
+    map hello [ "artichoke", "alcachofa" ] & intercalculate "\n" & putStrLn
+```
+
+***
+
+_Alcachofa_, if you were wondering, is artichoke in Spanish.

examples/artichokes/main.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"embed"
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/charmbracelet/glamour"
+	"github.com/muesli/termenv"
+)
+
+//go:embed artichokes.md
+var f embed.FS
+
+func main() {
+	// Provide a style by name (optional)
+	var style string
+	if len(os.Args) < 2 {
+		// check env, if unset then use default style
+		style = os.Getenv("GLAMOUR_STYLE")
+	} else {
+		style = os.Args[1]
+	}
+
+	// Let's learn a 'lil something about artichokes...
+	b, err := f.ReadFile("artichokes.md")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	r, err := glamour.NewTermRenderer(
+		glamour.WithStandardStyle(style),
+		glamour.WithColorProfile(termenv.TrueColor),
+	)
+	if err != nil {
+		log.Fatal(err)
+	}
+	md, err := r.RenderBytes(b)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Fprintf(os.Stdout, "%s\n", md)
+}

gallery.sh

@@ -1,20 +1,23 @@
 #!/bin/bash
 
-for style in ./styles/*.json; do
-    echo "Generating screenshot for ${style}"
-    filename="`basename -s .json ${style}`.png"
+if ! command -v freeze &> /dev/null; then
+    echo "freeze not found. Please install freeze to capture images."
+    echo "https://github.com/charmbracelet/freeze/"
+    exit 1
+fi
 
-    light=""
-    if [[ $style == *"light"* ]]; then
-        light="-l"
-    fi
+defaultStyles=("ascii" "auto" "dark" "dracula" "light" "notty" "pink")
 
+for style in "${defaultStyles[@]}"; do
+    echo "Generating screenshot for ${style}"
     # take screenshot
-    ./termshot ${light} -o ./styles/gallery/ -f "$filename" glow -s ${style}
-
-    # add border
-    convert -bordercolor black -border 16x16 "./styles/gallery/$filename" "./styles/gallery/$filename"
+    if [[ $style == *"light"* ]]; then
+        # Provide a light background to images
+        freeze  -x "go run ./examples/artichokes ${style}" -b "#FAFAFA" -o "./styles/gallery/${style}.png"
+    else
+        freeze  -x "go run ./examples/artichokes ${style}" -o "./styles/gallery/${style}.png"
+    fi
 
     # optimize filesize
-    pngcrush -ow "./styles/gallery/$filename"
+    pngcrush -ow "./styles/gallery/$style.png"
 done

styles/gallery/README.md

@@ -2,18 +2,18 @@
 
 ## Dark
 
-![Glamour Dark Style](https://github.com/charmbracelet/glamour/raw/master/styles/gallery/dark.png)
+![Glamour Dark Style](dark.png)
 
 ## Light
 
-![Glamour Light Style](https://github.com/charmbracelet/glamour/raw/master/styles/gallery/light.png)
+![Glamour Light Style](light.png)
 
 ## NoTTY
 
 Pronounced _naughty_.
 
-![Glamour NoTTY Style](https://github.com/charmbracelet/glamour/raw/master/styles/gallery/notty.png)
+![Glamour NoTTY Style](notty.png)
 
 ## Dracula
 
-![Dracula Style](https://github.com/charmbracelet/glamour/raw/master/styles/gallery/dracula.png)
+![Dracula Style](dracula.png)