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just vm: fetch nix-config's full history when the submodule is shallow - #104
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`.gitmodules` checks nix-config out shallow, and nix refuses a shallow git
checkout as a flake ("'revCount' is not available"), so `just vm` failed
even after #103 lifted the sparse checkout. `_nix-config-full` now runs
`git -C nix-config fetch --unshallow` when the submodule is shallow; the
next run sees a full clone and does nothing. nix-config#78 makes its own
recipes accept a shallow checkout too, but that only reaches here with a
pin bump.
Tested: in a scratch superproject with nix-config added as a --depth 1 submodule from GitHub, `just _nix-config-full` unshallowed it (is-shallow-repository false), a second run printed nothing, and `nix eval .#nixosConfigurations.nixos.config.system.build.vm.name` gave nixos-vm; `just --list` parses
Cost: none
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxFd8xekxhf5MDQNB7tdQz
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Summary Before:
just vmfailed with "'/…/ww3-gpu/nix-config' is a shallow Git repository, so 'revCount' is not available", because.gitmoduleschecks nix-config out shallow and nix refuses a shallow git checkout as a flake. After:_nix-config-fullrunsgit -C nix-config fetch --unshallowonce when the submodule is shallow, andjust vmbuilds.--depth 1submodule from GitHub:just _nix-config-fullunshallowed it, a second run printed nothing,nix eval .#nixosConfigurations.nixos.config.system.build.vm.namegavenixos-vm;just --listparsesWhat changed
justfile:_nix-config-fullunshallows nix-config (local state only, like the sparse-checkout line above it). fix(vm):just vmandjust graphifywork from a shallow checkout picasso#78 makes nix-config's own recipes accept a shallow checkout; that reaches here only with a pin bump.🤖 Generated with Claude Code
https://claude.ai/code/session_01KxFd8xekxhf5MDQNB7tdQz
Generated by Claude Code