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authortv <tv@krebsco.de>2023-01-04 14:01:34 +0100
committertv <tv@krebsco.de>2023-01-04 14:01:39 +0100
commit221d5dc01244ffce0c14426e90b76f392d4c5dfa (patch)
tree20b35e463ccc60974dac04a2c3d010fda1545c2e /krebs/3modules/github/update
parentb81598ccd93ed2583ce6e9366184992b6f41a177 (diff)
github: add update script
Diffstat (limited to 'krebs/3modules/github/update')
-rwxr-xr-xkrebs/3modules/github/update15
1 files changed, 15 insertions, 0 deletions
diff --git a/krebs/3modules/github/update b/krebs/3modules/github/update
new file mode 100755
index 000000000..3952dabae
--- /dev/null
+++ b/krebs/3modules/github/update
@@ -0,0 +1,15 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p cidr2glob curl git jq
+
+# update known-hosts.json
+#
+# usage: ./update
+
+set -efu
+
+# XXX IPv6 addresses are currently ignored
+curl -sS https://api.github.com/meta | jq -r .git[] | grep -v : | cidr2glob | jq -Rs 'split("\n")|map(select(.!=""))' > known-hosts.json
+
+if git diff --exit-code known-hosts.json; then
+ echo known-hosts.json is up to date: nothing to do >&2
+fi