wrap at 85 and make this limit configurable

CHANGELOG.md

@@ -10,6 +10,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - `changelog path` as an alias of `changelog find`
+- The column at which text wraps can be configured using the `KEEPAC_WRAP_AT` environment variable
+
+### Changed
+
+- The output now wraps after 85 characters
 
 ### Fixed
 

internal/changelog/show.go

@@ -3,6 +3,7 @@ package changelog
 import (
 	"fmt"
 	"os"
+	"strconv"
 
 	"github.com/charmbracelet/glamour"
 	"golang.org/x/term"
@@ -33,13 +34,33 @@ func Show(contents string) error {
 
 func getWordWrapLimit() int {
 	current := int(os.Stdin.Fd())
+	// When wrapping at exatcly 85, the default contents generated
+	// `changelog init` wrap nicely:
+	//
+	//    Changelog
+	//
+	//    All notable changes to this project will be documented in this file.
+	//
+	//    The format is based on Keep a Changelog https://keepachangelog.com/en/1.0.0/, and
+	//    this project adheres to Semantic Versioning https://semver.org/spec/v2.0.0.html.
+	//
+	// Anything less than 85 leads to the links being broken up, which does not
+	// look very good.
+	fallback := 85
+
+	preferredRaw := os.Getenv("KEEPAC_WRAP_AT")
+	preferred, err := strconv.Atoi(preferredRaw)
+	if err != nil {
+		preferred = fallback
+	}
+
 	width, _, err := term.GetSize(current)
 	if err != nil {
-		return 80
+		return fallback
 	}
 
-	if width > 80 {
-		return 80
+	if width > preferred {
+		return preferred
 	}
 
 	return width