Created
October 30, 2016 19:02
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{ writeScriptBin, runCommand, xterm }: | |
let | |
nixposition = writeScriptBin "nix-position" '' | |
nix-position () { | |
usage () { | |
echo "Usage: nix-position <attribute-path-under-pkgs>" | |
echo "Shows the Nix source file for a given attribute path." | |
} | |
if [ $# -ne 1 ]; then usage; return -1; fi | |
local EXPR="(import <nixpkgs> {}).pkgs.${1}.meta.position" | |
nix-instantiate --eval -E "''${EXPR}" | sed 's:"$::g' | sed 's:^"::g' | |
return 0 | |
} | |
''; | |
in runCommand "util-1" {} '' | |
mkdir -pv $out/bin | |
cat << EOF > $out/bin/loginto | |
#!$SHELL | |
exec ${xterm}/bin/xterm -e ssh \$1 -t screen -xRRU | |
EOF | |
chmod +x $out/bin/loginto | |
cat << EOF > $out/bin/showsize | |
#!$SHELL | |
nix-store --query --tree "\$1" | sed 's,[-+| ]*/,/,' | awk '{print \$1}' | sort | uniq | xargs nix-store --query --size | paste -sd+ | ( echo -n '( ';sed 's,+, + ,g';echo ' ) / 1024 / 1024' ) | xargs expr | |
EOF | |
chmod +x $out/bin/showsize | |
cat << EOF > $out/bin/nix-lookup | |
#!$SHELL | |
local USAGE | |
USAGE="$USAGE Usage: nix-lookup <expression-path-under-pkgs>" | |
USAGE="$USAGE Shows the directory for the given attribute path." | |
if [ $# -ne 1 ]; then echo "$USAGE"; return -1; fi | |
nix-instantiate --eval -E "\"\''${(import <nixpkgs> {}).pkgs.$1}\"" | sed 's:"::g' | |
EOF | |
chmod +x $out/bin/nix-lookup | |
'' |
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