Shebang flakes #1
Closed
Commits on Aug 18, 2023
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Enables shebang usage of nix shell. All arguments with `#! nix` get added to the nix invocation. This implementation does NOT set any additional arguments other than placing the script path itself as the first argument such that the interpreter can utilize it. Example below: ``` #!/usr/bin/env nix #! nix shell --quiet #! nix nixpkgs#bash #! nix nixpkgs#shellcheck #! nix nixpkgs#hello #! nix --ignore-environment --command bash # shellcheck shell=bash set -eu shellcheck "$0" || exit 1 function main { hello echo 0:"$0" 1:"$1" 2:"$2" } "$@" ``` fix: include programName usage -
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libcmd: lookupFileArg(): add baseDir
This will allow a different base directory to be used, matching a shebang script location instead of the working directory.
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nix: Reserve shebang line syntax and only parse double backtick quotes
Being restrictive about syntax leaves opportunity to improve the syntax and functionality later.
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nix/installables.cc: Use getCommandBaseDir() where possible
These usages of the working directory are perhaps unlikely to interact with shebangs, but the code is more consistent this way, and we're less likely to miss usages that do interact.
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