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OpenSSL can randomly segfault unless we register a callback function
to do locking.
https://www.openssl.org/docs/manmaster/crypto/threads.html
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Calling a class an API is a bit redundant...
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Also, move a few free-standing functions into StoreAPI and Derivation.
Also, introduce a non-nullable smart pointer, ref<T>, which is just a
wrapper around std::shared_ptr ensuring that the pointer is never
null. (For reference-counted values, this is better than passing a
"T&", because the latter doesn't maintain the refcount. Usually, the
caller will have a shared_ptr keeping the value alive, but that's not
always the case, e.g., when passing a reference to a std::thread via
std::bind.)
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Such as whether Nix is built with signed binary cache support, and the
location of the configuration file.
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This is mostly useful for hydra-queue-runner.
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Borrowed from systemd.
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This reverts commit d34d2b2bbf784c0bb420a50905af25e02c6e4989.
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http://hydra.nixos.org/build/17690555
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In low memory environments, "nix-env -qa" failed because the fork to
run the pager hit the kernel's overcommit limits. Using posix_spawn
gets around this. (Actually, you have to use posix_spawn with the
undocumented POSIX_SPAWN_USEVFORK flag, otherwise it just uses
fork/exec...)
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Borrowed from systemd.
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So now
nix-instantiate --eval -E '{x}: x' --argstr x -xyzzy
correctly prints "-xyzzy", rather than giving an error.
Issue NixOS/hydra#176.
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Fixes NixOS/nixpkgs#3410.
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Fixes #265.
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Issue #231.
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This substituter connects to a remote host, runs nix-store --serve
there, and then forwards substituter commands on to the remote host and
sends their results to the calling program. The ssh-substituter-hosts
option can be specified as a list of hosts to try.
This is an initial implementation and, while it works, it has some
limitations:
* Only the first host is used
* There is no caching of query results (all queries are sent to the
remote machine)
* There is no informative output (such as progress bars)
* Some failure modes may cause unhelpful error messages
* There is no concept of trusted-ssh-substituter-hosts
Signed-off-by: Shea Levy <shea@shealevy.com>
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Conflicts:
src/libexpr/eval.cc
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Instead, libexpr now depends on libgc. This means commands like
nix-store that don't do any evaluation no longer require libgc.
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Note that adding --show-trace prevents functions calls from being
tail-recursive, so an expression that evaluates without --show-trace
may fail with a stack overflow if --show-trace is given.
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Previously, if the Nix evaluator gets a stack overflow due to a deep
or infinite recursion in the Nix expression, the user gets an
unhelpful message ("Segmentation fault") that doesn't indicate that
the problem is in the user's code rather than Nix itself. Now it
prints:
error: stack overflow (possible infinite recursion)
This only works on x86_64-linux and i686-linux.
Fixes #35.
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This reverts commit 28bba8c44f484eae38e8a15dcec73cfa999156f6.
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‘--option verbosity 0’ doesn't actually do anything.
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If all contending processes wait a fixed amount of time (100 ms),
there is a good probability that they'll just collide again.
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The integer constant ‘langVersion’ denotes the current language
version. It gets increased every time a language feature is
added/changed/removed. It's currently 1.
The string constant ‘nixVersion’ contains the current Nix version,
e.g. "1.2pre2980_9de6bc5".
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This flag causes paths that do not have a known substitute to be
quietly ignored. This is mostly useful for Charon, allowing it to
speed up deployment by letting a machine use substitutes for all
substitutable paths, instead of uploading them. The latter is
frequently faster, e.g. if the target machine has a fast Internet
connection while the source machine is on a slow ADSL line.
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AFAIK nobody uses this, setuid binaries are evil, and there is no good
reason why people can't just run the daemon.
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I.e. do what git does. I'm too lazy to keep the builtin help text up
to date :-)
Also add ‘--help’ to various commands that lacked it
(e.g. nix-collect-garbage).
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Output names are now appended to resulting GC symlinks, e.g. by
nix-build. For backwards compatibility, if the output is named "out",
nothing is appended. E.g. doing "nix-build -A foo" on a derivation
that produces outputs "out", "bin" and "dev" will produce symlinks
"./result", "./result-bin" and "./result-dev", respectively.
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Put all Nix configuration flags in a Settings object.
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By moving the destructor object to libstore.so, it's also run when
download-using-manifests and nix-prefetch-url exit. This prevents
them from cluttering /nix/var/nix/temproots with stale files.
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