From e8e9e911a92d39db37e562afd092535dbf2c7ae5 Mon Sep 17 00:00:00 2001
From: Henrik Sandklef <hesa@sandklef.com>
Date: Tue, 25 Nov 2025 15:36:49 +0100
Subject: [PATCH 1/4] add yaml format

---
 lookup_license/format.py | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/lookup_license/format.py b/lookup_license/format.py
index 0a5ff4e..49b5ff9 100644
--- a/lookup_license/format.py
+++ b/lookup_license/format.py
@@ -1,16 +1,20 @@
-import json
-
 # SPDX-FileCopyrightText: 2024 Henrik Sandklef
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
+import json
+import yaml
+
 FORMAT_JSON = "json"
+FORMAT_YAML = "yaml"
 FORMAT_TEXT = "text"
 
 class FormatterFactory():
 
     @staticmethod
     def formatter(fmt):
+        if fmt.lower() == FORMAT_YAML:
+            return YamlFormatter()
         if fmt.lower() == FORMAT_JSON:
             return JsonFormatter()
         if fmt.lower() == FORMAT_TEXT:
@@ -53,6 +57,23 @@ def format_cache(self, entries, verbose=False):
     def format_lookup_urls(self, looked_up_urls, verbose=False):
         return json.dumps(looked_up_urls, indent=4), None
 
+class YamlFormatter(Formatter):
+
+    def format_license(self, lic, verbose=False):
+        return yaml.safe_dump(lic), None
+
+    def format_error(self, exception, verbose=False):
+        return yaml.safe_dump(exception), None
+
+    def format_resources(self, resources, verbose=False):
+        return yaml.safe_dump(resources, indent=4)
+
+    def format_cache(self, entries, verbose=False):
+        return yaml.safe_dump(entries), None
+
+    def format_lookup_urls(self, looked_up_urls, verbose=False):
+        return yaml.safe_dump(looked_up_urls, indent=4), None
+
 class TextFormatter(Formatter):
 
     def format_license(self, lic, verbose=False):

From 930f984812491caf09c43e557e671a948c5ea731 Mon Sep 17 00:00:00 2001
From: Henrik Sandklef <hesa@sandklef.com>
Date: Fri, 28 Nov 2025 20:06:56 +0100
Subject: [PATCH 2/4] add format info in help text

---
 lookup_license/__main__.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lookup_license/__main__.py b/lookup_license/__main__.py
index baf6bb7..14da0cd 100755
--- a/lookup_license/__main__.py
+++ b/lookup_license/__main__.py
@@ -38,7 +38,8 @@ def get_parser():
 
     parser.add_argument('-of', '--output-format',
                         type=str,
-                        default='text')
+                        help=f'Format for output. Available format: {", ".join([f'"{x}"' for x in FormatterFactory.formats()])}. Default "{FormatterFactory.default_format()}"',
+                        default=FormatterFactory.default_format())
 
     parser.add_argument('-f', '--file',
                         action='store_true',

From 1820c5ce4083f973441c57792adda0dff91cd3c3 Mon Sep 17 00:00:00 2001
From: Henrik Sandklef <hesa@sandklef.com>
Date: Sun, 4 Jan 2026 15:48:09 +0100
Subject: [PATCH 3/4] add formats and methods

---
 lookup_license/format.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lookup_license/format.py b/lookup_license/format.py
index 49b5ff9..5478ca5 100644
--- a/lookup_license/format.py
+++ b/lookup_license/format.py
@@ -8,6 +8,8 @@
 FORMAT_JSON = "json"
 FORMAT_YAML = "yaml"
 FORMAT_TEXT = "text"
+DEFAULT_FORMAT = FORMAT_TEXT
+FORMATS = [FORMAT_JSON, FORMAT_YAML, FORMAT_TEXT]
 
 class FormatterFactory():
 
@@ -20,6 +22,14 @@ def formatter(fmt):
         if fmt.lower() == FORMAT_TEXT:
             return TextFormatter()
 
+    @staticmethod
+    def formats():
+        return FORMATS
+
+    @staticmethod
+    def default_format():
+        return DEFAULT_FORMAT
+
 class Formatter:
 
     def _ambig_response(self, lic):

From e057edf8354bc63de228412246037a7f1dd9d401 Mon Sep 17 00:00:00 2001
From: Henrik Sandklef <hesa@sandklef.com>
Date: Mon, 5 Jan 2026 10:02:41 +0100
Subject: [PATCH 4/4] break out output_formats

---
 lookup_license/__main__.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lookup_license/__main__.py b/lookup_license/__main__.py
index 14da0cd..4a80cb4 100755
--- a/lookup_license/__main__.py
+++ b/lookup_license/__main__.py
@@ -20,6 +20,10 @@
 
 def get_parser():
 
+    default_output_format = FormatterFactory.default_format()
+    
+    output_formats = ', '.join([f'"{x}"' for x in FormatterFactory.formats()])
+
     parser = argparse.ArgumentParser(
         description=lookup_license.config.DESCRIPTION,
         epilog=lookup_license.config.EPILOG,
@@ -38,8 +42,8 @@ def get_parser():
 
     parser.add_argument('-of', '--output-format',
                         type=str,
-                        help=f'Format for output. Available format: {", ".join([f'"{x}"' for x in FormatterFactory.formats()])}. Default "{FormatterFactory.default_format()}"',
-                        default=FormatterFactory.default_format())
+                        help=f'Format for output. Available format: {output_formats}. Default "{default_output_format}"',
+                        default=default_output_format)
 
     parser.add_argument('-f', '--file',
                         action='store_true',