Expose lastModified attribute #2898
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This is primarily useful for version string generation, where we need a monotonically increasing number. The revcount is the preferred thing to use, but isn't available for GitHub flakes (since it requires fetching the entire history). The last commit timestamp OTOH can be extracted from GitHub tarballs.
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The
lastModifiedattribute of a flake is the timestamp of the last commit. This is primarily useful for generating version strings, since unlikerevCount, it's supported for both git and github flakes. For example:produces a name like
dwarffs-0.1.20190528.It's also visible in
nix flake info: