Add gen-readme script

3 files changed, 20 insertions, 2 deletions

diff --git a/.gitignore b/.gitignore
index b9acab3..00c9ff3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /.py3/
 /variables.json
 /scrub-old-amis.py
+/gen-readme.py
diff --git a/Makefile b/Makefile
index e7896ca..04ec2fb 100644
--- a/Makefile
+++ b/Makefile
@@ -17,10 +17,10 @@ build/convert:
         @echo "json.dump(yaml.load(open(sys.argv[1])), sys.stdout, indent=4, separators=(',', ': '))" >> build/convert
         @chmod +x build/convert
 
-scrub-old-amis.py: scrub-old-amis.py.in
+%.py: %.py.in
         sed "s|@PYTHON@|#!`pwd`/.py3/bin/python|" $< > $@
         chmod +x $@
 
 .PHONY: clean
 clean:
-        rm -rf build .py3 scrub-old-amis.py
+        rm -rf build .py3 scrub-old-amis.py gen-readme.py
diff --git a/gen-readme.py.in b/gen-readme.py.in
new file mode 100644
index 0000000..5ffd4db
--- /dev/null
+++ b/gen-readme.py.in
@@ -0,0 +1,17 @@
+@PYTHON@
+
+import yaml
+
+URI_TEMPLATE = "https://{region}.console.aws.amazon.com/ec2/home#launchAmi={ami}"
+ROW_TEMPLATE = "| {release} | {region} | [{ami}]({uri}) |"
+
+
+with open("release.yaml") as fp:
+    releases = yaml.load(fp)
+
+for metadata in releases.values():
+    release = str(metadata["alpine-release"])
+
+    for region, ami in metadata["region-identifiers"].items():
+        uri = URI_TEMPLATE.format(**locals())
+        print(ROW_TEMPLATE.format(**locals()))