mirror of
https://github.com/fort-nix/nix-bitcoin.git
synced 2024-11-30 03:32:05 +03:00
af115d746b
Instead of setting up the script PATH via nix-shell, use
`nix shell` with inputs from the nix-bitcoin flake.
Advantages:
- Uses the nixpkgs version from the nix-bitcoin flake instead of
`<nixpkgs>` from the user env (NIX_PATH), so the script runtime
env is reproducible.
- The pkg derivations for the runtime env are cached, which greatly
increases script startup speed.
This commit was generated by running the following script inside the
repo root dir:
def transform(path, src)
if src =~ /#! *nix-shell +-i +bash +-p +(.*)/
pkgs = $1
if src =~ /^.*?(set -e.*?pipefail)\n/
set_statement = $1
src.sub!($&, '')
end
src.sub!(/\A.*?#! *nix-shell.*?\n/m, '')
parents = ([ '..' ] * (path.split('/').count - 1)).join('/')
[
'#!/usr/bin/env bash',
*set_statement,
%(. "${BASH_SOURCE[0]%/*}/#{parents}/helper/run-in-nix-env" "#{pkgs}" "$@"),
nil,
src
].join("\n")
end
end
Dir['**/*.sh'].each do |f|
src = File.read(f)
if new_src = transform(f, src)
puts "Changed file #{f}"
File.write(f, new_src)
end
end
21 lines
619 B
Bash
21 lines
619 B
Bash
#!/usr/bin/env bash
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# Usage:
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# source "path/to/run-in-nix-env" "pkg1 pkg2 ..." "$@"
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#
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# Runs the calling script with pkgs1, pkg2, ... in PATH.
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# The packages are sourced from the nixpkgs input of the nix-bitcoin root flake.
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if [[ ${_NIX_BITCOIN_ENV_PKGS:-} != "$1" ]]; then
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export _NIX_BITCOIN_ENV_PKGS=$1
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shift
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_shell_pkgs=()
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for _pkg in $_NIX_BITCOIN_ENV_PKGS; do
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_shell_pkgs+=("nixpkgs#$_pkg")
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done
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# BASH_SOURCE[0] is this file
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# BASH_SOURCE[-1] is the root src file
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exec nix shell --inputs-from "${BASH_SOURCE[0]%/*}/.." "${_shell_pkgs[@]}" -c "${BASH_SOURCE[-1]}" "$@"
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fi
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