nixpkgs/pkgs/build-support/rust/build-rust-crate/log.nix
Andreas Rammhold 50b2ef28f7
buildRustCrate: move the color loggign & remove some runtime checks
The expression is already long and confusing enough without the color
stuff sprinkled in. Moving it to a dedicated file makes sense.

I switched a bit of the color support code to pure Nix since there
wasn't much point in doing that in bash while we can just do it in Nix.
2019-12-11 22:35:44 +01:00

33 lines
802 B
Nix

{ lib }:
{
echo_build_heading = colors: ''
echo_build_heading() {
start=""
end=""
${lib.optionalString (colors == "always") ''
start="$(printf '\033[0;1;32m')" #set bold, and set green.
end="$(printf '\033[0m')" #returns to "normal"
''}
if (( $# == 1 )); then
echo "$start""Building $1""$end"
else
echo "$start""Building $1 ($2)""$end"
fi
}
'';
noisily = colors: verbose: ''
noisily() {
start=""
end=""
${lib.optionalString (colors == "always") ''
start="$(printf '\033[0;1;32m')" #set bold, and set green.
end="$(printf '\033[0m')" #returns to "normal"
''}
${lib.optionalString verbose ''
echo -n "$start"Running "$end"
echo $@
''}
$@
}
'';
}