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fixes #2730.
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Add a 5 seconds of timeout to connecting to S3.
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The default is 1000ms, but we can hit it a lot of we don't have direct
link to AWS (e.g. using VPN).
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docs: fix typo in AllowDirectReads
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It was just missing an `l` but should be fixed anyway.
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They're pretty much root anyway.
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This is less brittle than filtering paths after the fact in
nix-daemon.
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Scanning of /proc/<pid>/{exe,cwd} was broken because '{memory:' was
prepended twice. Also, get rid of the whole '{memory:...}' thing
because it's unnecessary, we can just list the file in /proc directly.
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This fixes warnings about "structured binding declaration" requiring
"-std=c++1z".
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This new structure makes more sense as there may be many sources rooting
the same store path. Many profiles can reference the same path but this
is even more true with /proc/<pid>/maps where distinct pids can and
often do map the same store path.
This implementation is also more efficient as the `Roots` map contains
only one entry per rooted store path.
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canBuildLocally: check for features
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It could happen that the local builder match the system but lacks some features.
Now it results a failure.
The fix gracefully excludes the local builder from the set of available builders for derivation which requires the feature, so the derivation is built on remote builders only (as though it has incompatible system, like ```aarch64-linux``` when local is x86)
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Fixes w/musl.
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nix-daemon: add variable to disable fork safety
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Support parameters in S3 URLs
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which splits a URL into localtor and parameter parts
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remove noop uses of nix-store --init
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the nix-store --init command is a noop apparently
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nix-store: make --dump-db take a list of paths to dump
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Support --disable-shared flag.
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This tells Nix to not build the shared libraries.
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Context introspection
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Since macOS 10.14 this has become an error, causing problems if the
nix-daemon loads nix during substitution (this is a forked process).
Workaround for #2523.
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This reverts commit a0ef21262f4d5652bfb65cfacaec01d89c475a93. This
doesn't work in 'nix run' and nix-shell because setns() fails in
multithreaded programs, and Boehm GC mark threads are uncancellable.
Fixes #2646.
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A partner of builtins.getContext, useful for the same reasons.
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Inside a derivation, exportReferencesGraph already provides a way to
dump the Nix database for a specific closure. On the command line,
--dump-db gave us the same information, but only for the entire Nix
database at once.
With this change, one can now pass a list of paths to --dump-db to get
the Nix database dumped for just those paths. (The user is responsible
for ensuring this is a closure, like for --export).
Among other things, this is useful for deploying a closure to a new
host without using --import/--export; one can use tar to transfer the
store paths, and --dump-db/--load-db to transfer the validity
information. This is useful if the new host doesn't actually have Nix
yet, and the closure that is being deployed itself contains Nix.
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manual: "sandbox" option default is "true" on Linux
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Fixes: 812e39313c ('Enable sandboxing by default')
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sevanspowell/update-nix-shell-interpreter-haskell-instructions
Update instructions for Haskell script using nix-shell interpreter
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- The instructions for using nix-shell as an interpreter has a Haskell script
example that doesn't work on more recent versions of Nix. Update the
instructions with a working command
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This can be very helpful when debugging, as well as enabling complex
black magic like surgically removing a single dependency from a
string's context.
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