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E.g. 'nix build nixpkgs#libxml2.dev' will build the 'dev' output.
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Added using the following sed scripts:
- For command-ref/opt-common.md:
s~- `(--?)([^`]+)`~- [`\1\2`]{#opt-\2}~g
- For expressions/builtin-constants.md:
s~- `(builtins\.?)([^`]+)`~- [`\1\2`]{#builtins-\2}~g
- For expressions/advanced-attributes.md
s~^ - `([^`]+)`~ - [`\1`]{#adv-attr-\1}~g
and manually adjusted outputHashAlgo & outputHashMode.
- For glossary.md
s~^ - (`([^`]+)`|(.+)) ?\\~ - [\1]{#gloss-\2\3}\\~g;
s~(gloss-\w+) ~\1-~g
and manually adjusted anchors for Nix expression, user environment, NAR, ∅ and ε.
- For command-ref/env-common.md
s~^ - `([^`]+)`~ - [`\1`]{#env-\1}~g'
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Add a new `file` fetcher type, which will fetch a plain file over
http(s), or from the local file.
Because plain `http(s)://` or `file://` urls can already correspond to
`tarball` inputs (if the path ends-up with a know archive extension),
the URL parsing logic is a bit convuluted in that:
- {http,https,file}:// urls will be interpreted as either a tarball or a
file input, depending on the extensions of the path part (so
`https://foo.com/bar` will be a `file` input and
`https://foo.com/bar.tar.gz` as a `tarball` input)
- `file+{something}://` urls will be interpreted as `file` urls (with
the `file+` part removed)
- `tarball+{something}://` urls will be interpreted as `tarball` urls (with
the `tarball+` part removed)
Fix #3785
Co-Authored-By: Tony Olagbaiye <me@fron.io>
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As asked in <https://github.com/NixOS/nix/pull/6517#discussion_r869416905>
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- Make it clear what the different kind of tests are, where they live
and how they can be ran
- Ask people to primarily write unit tests
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E.g. 'nixpkgs#glibc^dev,static' or 'nixpkgs#glibc^*'.
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The produced path is then allowed be imported or utilized elsewhere:
```
assert (43 == import (builtins.toFile "source" "43")); "good"
```
This will still fail on write-only stores.
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has the same functionality as default nix-build
$ nix-build . -A "bash" -A "bash.dev" -A "tinycc"
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
/nix/store/c49i1ggnr5cc8gxmk9xm0cn961z104dn-bash-5.1-p12-dev
/nix/store/dbapb08862ajgaax3621fz8hly9fdah3-tcc-0.9.27+date=2022-01-11
$ nix-build . -A "bash"
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
$ $HOME/nixgits/nix/result/bin/nix build "nixpkgs#bash" "nixpkgs#bash.dev" "nixpkgs#tinycc" --print-out-paths
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
/nix/store/c49i1ggnr5cc8gxmk9xm0cn961z104dn-bash-5.1-p12-dev
/nix/store/dbapb08862ajgaax3621fz8hly9fdah3-tcc-0.9.27+date=2022-01-11
$ $HOME/nixgits/nix/result/bin/nix build "nixpkgs#bash" --print-out-paths
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
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Requested by ppepino on the Matrix:
https://matrix.to/#/!KqkRjyTEzAGRiZFBYT:nixos.org/$Tb32BS3rVE2BSULAX4sPm0h6CDewX2hClOTGzTC7gwM?via=nixos.org&via=matrix.org&via=nixos.dev
This adds a new command, :bl, which works like :b but also creates
a GC root symlink to the various derivation outputs.
ckie@cookiemonster ~/git/nix -> ./outputs/out/bin/nix repl
Welcome to Nix 2.6.0. Type :? for help.
nix-repl> :l <nixpkgs>
Added 16118 variables.
nix-repl> :b runCommand "hello" {} "echo hi > $out"
This derivation produced the following outputs:
./repl-result-out -> /nix/store/kidqq2acdpi05c4a9mlbg2baikmzik44-hello
[1 built, 0.0 MiB DL]
ckie@cookiemonster ~/git/nix -> cat ./repl-result-out
hi
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experimental feature is enabled
This allows writing fallback code like
if builtins ? fetchClosure then
builtins.fetchClose { ... }
else
builtins.storePath ...
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make-content-addressed'
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doc: Add detailed uninstall section for macOS
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nix: allow using --file - to read from stdin
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The uninstall instructions used to accidentally remove the nix-darwin
LaunchDaemon, this was dropped. However, the original intent was to
remove the Store volume mounting LaunchDaemon.
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Clarify that `/nix` being present after the uninstall is normal and it
will only disappear after a reboot.
Co-authored-by: Travis A. Everett <travis.a.everett@gmail.com>
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Replace defaultBla.$system with bla.$system.default
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Make it explicit that it only includes the existing outputs and not the ones that haven’t been realised
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The multi-user installation on macOS, which is now the only option, has
gotten complicated enough that it discourages some users from checking
Nix out for fear of being left with a "dirty" system. Detailed
uninstallation instructions should make this less of an issue.
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Fixes #5952.
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Correct `NIX_BUILD_PATH` default description
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Source: https://github.com/NixOS/nix/blob/067076287bf601f8fa2ffe4feff3057b96fa5be8/src/nix-build/nix-build.cc#L362-L381
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