man: document the new --all switches

diff --git a/mkosi.md b/mkosi.md
index 4d4b6e0de8319e5bc3a200260be5fc71d682d39e..2b56a58151bc1a012c817e453e2be20bf8da76eb 100644 (file)
--- a/mkosi.md
+++ b/mkosi.md
@@ -589,6 +589,20 @@ details see the table below.
   wins, except for options taking lists in which case both lists are
   combined.
 
+`--all`, `-a`
+
+: Iterate through all files `mkosi.*` in the `mkosi.files/`
+  subdirectory, and build each as if `--default=mkosi.files/mkosi.…`
+  was invoked. This is a quick way to build a large number of images
+  in one go. Any additional specified command line arguments override
+  the relevant options in all files processed this way.
+
+`--all-directory=`
+
+: If specified, overrides the directory the `--all` logic described
+  above looks for settings files in. If unspecified, defaults to
+  `mkosi.files/` in the current working directory (see above).
+
 `--version`
 : Show package version.