Merge pull request #101 from pivotal-david-osullivan/tomcat-7-depreca…

…tion

Deprecation warning for Tomcat 7

tomcat/build.go

@@ -22,6 +22,8 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/heroku/color"
+
 	"github.com/buildpacks/libcnb"
 	"github.com/paketo-buildpacks/libjvm"
 	"github.com/paketo-buildpacks/libpak"
@@ -88,6 +90,10 @@ func (b Build) Build(context libcnb.BuildContext) (libcnb.BuildResult, error) {
 		return libcnb.BuildResult{}, fmt.Errorf("unable to find dependency\n%w", err)
 	}
 
+	if strings.HasPrefix(tomcatDep.Version, "7") {
+		dc.Logger.Headerf("%s Apache Tomcat version 7 is End-of-Life, this is the last release that will contain version 7", color.YellowString("WARNING: "))
+	}
+
 	home, be := NewHome(tomcatDep, dc)
 	home.Logger = b.Logger
 	result.Layers = append(result.Layers, home)