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Escape filename given to nix-shell in shebang mode

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This prevents spaces or other metacharacters from causing nix-shell to
execute the wrong path.

Fixes #4229.
This commit is contained in:
Lily Ballard 2020-11-24 14:12:32 -08:00
parent 605bacdc92
commit 437189e446
3 changed files with 20 additions and 4 deletions
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4
src/nix-build/nix-build.cc
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@ -217,9 +217,9 @@ static void main_nix_build(int argc, char * * argv)
// read the shebang to understand which packages to read from. Since
// this is handled via nix-shell -p, we wrap our ruby script execution
// in ruby -e 'load' which ignores the shebangs.
envCommand = (format("exec %1% %2% -e 'load(\"%3%\")' -- %4%") % execArgs % interpreter % script % joined.str()).str();
envCommand = (format("exec %1% %2% -e 'load(ARGV.shift)' -- %3% %4%") % execArgs % interpreter % shellEscape(script) % joined.str()).str();
} else {
envCommand = (format("exec %1% %2% %3% %4%") % execArgs % interpreter % script % joined.str()).str();
envCommand = (format("exec %1% %2% %3% %4%") % execArgs % interpreter % shellEscape(script) % joined.str()).str();
}
}