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This matches the already-existing `local-fs-store.cc`.
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This was useful for an experiment with building Nix as a single
compilation unit. It's not very useful otherwise but also doesn't
hurt...
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This reduces compilation time by ~15 seconds (CPU time).
Issue #4045.
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It's a tiny function which is:
- hardly worth abstrating over, and also only used once.
- doesn't work once we get CA drvs
I rewrote the one callsite to be forwards compatable with CA
derivations, and also potentially more performant: instead of reading in
the derivation it can ust consult the SQLite DB in the common case.
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Add a new `--log-format` cli argument to change the format of the logs.
The possible values are
- raw (the default one for old-style commands)
- bar (the default one for new-style commands)
- bar-with-logs (equivalent to `--print-build-logs`)
- internal-json (the internal machine-readable json format)
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Reduces the number of store queries it performs. Also prints a warning
if any of the selectors did not match any installed derivations.
UX Caveats:
- Will print a warning that nothing matched if a previous selector
already removed the path
- Will not do anything if no selectors were provided (no change from
before).
Fixes #3531
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This prevents users from accidentally nuking their profile via
nix-env.
(cherry picked from commit 021634e3e3edb327089d33ab41b743f0a40126da)
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(cherry picked from commit 2c692a3b144523bca68dd6de618124ba6c9bb332)
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(cherry picked from commit 0b013a54dc570395bed887369f8dd622b8ce337b)
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display attr-path only when queried available
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Most functions now take a StorePath argument rather than a Path (which
is just an alias for std::string). The StorePath constructor ensures
that the path is syntactically correct (i.e. it looks like
<store-dir>/<base32-hash>-<name>). Similarly, functions like
buildPaths() now take a StorePathWithOutputs, rather than abusing Path
by adding a '!<outputs>' suffix.
Note that the StorePath type is implemented in Rust. This involves
some hackery to allow Rust values to be used directly in C++, via a
helper type whose destructor calls the Rust type's drop()
function. The main issue is the dynamic nature of C++ move semantics:
after we have moved a Rust value, we should not call the drop function
on the original value. So when we move a value, we set the original
value to bitwise zero, and the destructor only calls drop() if the
value is not bitwise zero. This should be sufficient for most types.
Also lots of minor cleanups to the C++ API to make it more modern
(e.g. using std::optional and std::string_view in some places).
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This allows distinguishing between an empty value and no value.
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https://hydra.nixos.org/build/102803093
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These are all symlinks to 'nix' now, reducing the installed size by
about ~1.7 MiB.
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Fixes #2425.
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Implement --delete-generations + flag for keeping last N number of gens
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missing comma
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All plugins in plugin-files will be dlopened, allowing them to
statically construct instances of the various Register* types Nix
supports.
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Also, random cleanup to argument handling.
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Relevant RFC: NixOS/rfcs#4
$ ag -l | xargs sed -i -e "/\"/s/’/'/g;/\"/s/‘/'/g"
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Functions like copyClosure() had 3 bool arguments, which creates a
severe risk of mixing up arguments.
Also, implement copyClosure() using copyPaths().
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This reverts commit f78126bfd6b6c8477fcdbc09b2f98772dbe9a1e7. There
really is no need for such a massive change...
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