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feat(nix-instantiate): add --raw flag

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The experimental `nix eval` command already supports a `--raw` flag.
This commit implements the same flag for the stable nix-instantiate command.

Until now instructions and scripts that didn't want to rely on experimental
features had to use workarounds such as:

    nix-instantiate --eval <something> | tr -d \"

(which also undesirably also removes double quotation marks within the string), or

    nix-instantiate --eval <something> | jq -j

(which undesirably depends on another package).

Co-authored-by: Silvan Mosberger <silvan.mosberger@tweag.io>
This commit is contained in:
Martin Fischer 2024-12-31 14:04:50 +01:00
parent 1a402e0c53
commit 7a8a28629c
5 changed files with 24 additions and 4 deletions
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2
doc/manual/source/command-ref/nix-copy-closure.md
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@ -84,7 +84,7 @@ When using public key authentication, you can avoid typing the passphrase with `
> Copy GNU Hello from a remote machine using a known store path, and run it:
>
> ```shell-session
> $ storePath="$(nix-instantiate --eval '<nixpkgs>' -I nixpkgs=channel:nixpkgs-unstable -A hello.outPath | tr -d '"')"
> $ storePath="$(nix-instantiate --eval --raw '<nixpkgs>' -I nixpkgs=channel:nixpkgs-unstable -A hello.outPath)"
> $ nix-copy-closure --from alice@itchy.example.org "$storePath"
> $ "$storePath"/bin/hello
> Hello, world!