forked from mirrors/nixpkgs
81 lines
1.6 KiB
Bash
81 lines
1.6 KiB
Bash
if test -z "$out"; then
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out="$OUT"
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initialPath="$INITIALPATH"
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shell="$SHELL"
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fi
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setupPath=
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for i in $initialPath; do
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setupPath=$setupPath${setupPath:+:}$i
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done
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PATH=$setupPath
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export PATH
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mkdir $out
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cat > $out/setup <<EOF
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PATH=$setupPath
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export PATH
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SHELL=$shell
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export SHELL
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# make fetchurl usable
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header() {
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echo "\$1"
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}
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stopNest() {
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echo "Nothing to do"
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}
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# !!! Awful copy&paste.
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substitute() {
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local input="\$1"
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local output="\$2"
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local -a params=("\$@")
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local sedScript=\$NIX_BUILD_TOP/.sedargs
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rm -f \$sedScript
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touch \$sedScript
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local n p pattern replacement varName
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for ((n = 2; n < \${#params[*]}; n += 1)); do
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p=\${params[\$n]}
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if test "\$p" = "--replace"; then
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pattern=\${params[\$((n + 1))]}
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replacement=\${params[\$((n + 2))]}
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n=\$((n + 2))
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echo "s^\$pattern^\$replacement^g" >> \$sedScript
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sedArgs=("\${sedArgs[@]}" "-e" )
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fi
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if test "\$p" = "--subst-var"; then
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varName=\${params[\$((n + 1))]}
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n=\$((n + 1))
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echo "s^@\${varName}@^\${!varName}^g" >> \$sedScript
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fi
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if test "\$p" = "--subst-var-by"; then
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varName=\${params[\$((n + 1))]}
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replacement=\${params[\$((n + 2))]}
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n=\$((n + 2))
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echo "s^@\${varName}@^\$replacement^g" >> \$sedScript
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fi
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done
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sed -f \$sedScript < "\$input" > "\$output".tmp
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if test -x "\$output"; then
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chmod +x "\$output".tmp
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fi
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mv -f "\$output".tmp "\$output"
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}
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EOF
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chmod +x $out/setup
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