From 231443b908823b9c10c33ed4f378d095c2e26f91 Mon Sep 17 00:00:00 2001
From: Dennis Fink
Date: Thu, 30 Dec 2021 20:46:39 +0100
Subject: Fail gracefully when --color is specified and pygments is not
 installed in patterncfg

---
 patternutils/commands/patterncfg.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/patternutils/commands/patterncfg.py b/patternutils/commands/patterncfg.py
index 0115ed2..8f85b8f 100644
--- a/patternutils/commands/patterncfg.py
+++ b/patternutils/commands/patterncfg.py
@@ -136,12 +136,19 @@ def view(name: str, command: str, color: bool) -> None:
         click.secho("File not found!", fg="red", err=True)
         raise SystemExit
     else:
-        if color:
+        if color and has_pygments:
             if filename.endswith("jinja2"):
                 lexer = DjangoLexer
             else:
                 lexer = Python3Lexer
             text = highlight(text, lexer(), TerminalFormatter())
+        elif color and not has_pygments:
+            click.echo(
+                "Pygments is not installed!. Cannot colorize output.",
+                fg="red",
+                err=True,
+            )
+            raise SystemExit
         click.echo(text[:-1])
 
 
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