stdenv-setup: Misc improvements as directed by ShellCheck
I took some liberties with the flags-echoing code to make it more concise and correct. Also, a few warnings in findInputs and friends I skipped because I am going to rewrite those anyways. Thanks @grahamc for telling me about this great linter!
This commit is contained in:
John Ericson
parent
8d76effc17
commit
5d4efb2c81
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@ -52,9 +52,9 @@ runOneHook() {
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_callImplicitHook() {
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local def="$1"
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local hookName="$2"
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case "$(type -t $hookName)" in
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(function|alias|builtin) $hookName;;
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(file) source $hookName;;
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case "$(type -t "$hookName")" in
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(function|alias|builtin) "$hookName";;
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(file) source "$hookName";;
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(keyword) :;;
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(*) if [ -z "${!hookName}" ]; then return "$def"; else eval "${!hookName}"; fi;;
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esac
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@ -66,7 +66,7 @@ _callImplicitHook() {
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_eval() {
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local code="$1"
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shift
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if [ "$(type -t $code)" = function ]; then
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if [ "$(type -t "$code")" = function ]; then
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eval "$code \"\$@\""
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else
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eval "$code"
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@ -80,12 +80,14 @@ _eval() {
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nestingLevel=0
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startNest() {
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nestingLevel=$(($nestingLevel + 1))
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# Assert natural as sanity check.
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let nestingLevel+=1 "nestingLevel>=0"
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echo -en "\033[$1p"
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}
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stopNest() {
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nestingLevel=$(($nestingLevel - 1))
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# Assert natural as sanity check.
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let nestingLevel-=1 "nestingLevel>=0"
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echo -en "\033[q"
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}
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@ -120,7 +122,7 @@ exitHandler() {
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# - system time for the shell
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# - user time for all child processes
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# - system time for all child processes
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echo "build time elapsed: " ${times[*]}
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echo "build time elapsed: " "${times[@]}"
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fi
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if [ $exitCode != 0 ]; then
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@ -197,7 +199,7 @@ isELF() {
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local fd
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local magic
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exec {fd}< "$fn"
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read -n 4 -u $fd magic
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read -r -n 4 -u $fd magic
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exec {fd}<&-
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if [[ "$magic" =~ ELF ]]; then return 0; else return 1; fi
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}
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@ -210,7 +212,7 @@ isScript() {
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local magic
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if ! [ -x /bin/sh ]; then return 0; fi
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exec {fd}< "$fn"
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read -n 2 -u $fd magic
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read -r -n 2 -u $fd magic
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exec {fd}<&-
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if [[ "$magic" =~ \#! ]]; then return 0; else return 1; fi
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}
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@ -439,14 +441,14 @@ substitute() {
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p="${params[$n]}"
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if [ "$p" = --replace ]; then
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pattern="${params[$((n + 1))]}"
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replacement="${params[$((n + 2))]}"
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n=$((n + 2))
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pattern="${params[$n + 1]}"
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replacement="${params[$n + 2]}"
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let n+=2
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fi
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if [ "$p" = --subst-var ]; then
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varName="${params[$((n + 1))]}"
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n=$((n + 1))
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varName="${params[$n + 1]}"
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let n+=1
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# check if the used nix attribute name is a valid bash name
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if ! [[ "$varName" =~ ^[a-zA-Z_][a-zA-Z0-9_]*$ ]]; then
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echo "WARNING: substitution variables should be valid bash names,"
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@ -459,9 +461,9 @@ substitute() {
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fi
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if [ "$p" = --subst-var-by ]; then
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pattern="@${params[$((n + 1))]}@"
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replacement="${params[$((n + 2))]}"
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n=$((n + 2))
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pattern="@${params[$n + 1]}@"
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replacement="${params[$n + 2]}"
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let n+=2
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fi
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content="${content//"$pattern"/$replacement}"
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@ -525,7 +527,9 @@ dumpVars() {
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# Utility function: echo the base name of the given path, with the
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# prefix `HASH-' removed, if present.
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stripHash() {
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local strippedName="$(basename "$1")";
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local strippedName
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# On separate line for `set -e`
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strippedName="$(basename "$1")"
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if echo "$strippedName" | grep -q '^[a-z0-9]\{32\}-'; then
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echo "$strippedName" | cut -c34-
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else
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@ -582,6 +586,7 @@ unpackPhase() {
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if [ -z "$srcs" ]; then
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if [ -z "$src" ]; then
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# shellcheck disable=SC2016
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echo 'variable $src or $srcs should point to the source'
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exit 1
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fi
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@ -601,7 +606,7 @@ unpackPhase() {
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# Unpack all source archives.
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for i in $srcs; do
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unpackFile $i
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unpackFile "$i"
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done
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# Find the source directory.
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@ -665,6 +670,7 @@ patchPhase() {
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;;
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esac
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# "2>&1" is a hack to make patch fail if the decompressor fails (nonexistent patch, etc.)
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# shellcheck disable=SC2086
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$uncompress < "$i" 2>&1 | patch ${patchFlags:--p1}
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stopNest
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done
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@ -681,18 +687,19 @@ fixLibtool() {
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configurePhase() {
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runHook preConfigure
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if [ -z "$configureScript" -a -x ./configure ]; then
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if [[ -z "$configureScript" && -x ./configure ]]; then
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configureScript=./configure
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fi
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if [ -z "$dontFixLibtool" ]; then
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find . -iname "ltmain.sh" | while read i; do
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local i
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find . -iname "ltmain.sh" -print0 | while IFS='' read -r -d '' i; do
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echo "fixing libtool script $i"
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fixLibtool $i
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fixLibtool "$i"
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done
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fi
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if [ -z "$dontAddPrefix" -a -n "$prefix" ]; then
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if [[ -z "$dontAddPrefix" && -n "$prefix" ]]; then
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configureFlags="${prefixKey:---prefix=}$prefix $configureFlags"
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fi
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@ -711,8 +718,14 @@ configurePhase() {
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fi
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if [ -n "$configureScript" ]; then
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echo "configure flags: $configureFlags ${configureFlagsArray[@]}"
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$configureScript $configureFlags "${configureFlagsArray[@]}"
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# shellcheck disable=SC2086
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local flagsArray=($configureFlags "${configureFlagsArray[@]}")
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printf 'configure flags:'
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printf ' %q' "${flagsArray[@]}"
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echo
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# shellcheck disable=SC2086
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$configureScript "${flagsArray[@]}"
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unset flagsArray
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else
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echo "no configure script, doing nothing"
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fi
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@ -724,17 +737,23 @@ configurePhase() {
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buildPhase() {
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runHook preBuild
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if [ -z "$makeFlags" ] && ! [ -n "$makefile" -o -e "Makefile" -o -e "makefile" -o -e "GNUmakefile" ]; then
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if [ -z "$makeFlags" ] && ! [[ -n "$makefile" || -e "Makefile" || -e "makefile" || -e "GNUmakefile" ]]; then
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echo "no Makefile, doing nothing"
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else
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# See https://github.com/NixOS/nixpkgs/pull/1354#issuecomment-31260409
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makeFlags="SHELL=$SHELL $makeFlags"
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echo "make flags: $makeFlags ${makeFlagsArray[@]} $buildFlags ${buildFlagsArray[@]}"
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make ${makefile:+-f $makefile} \
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# shellcheck disable=SC2086
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local flagsArray=( \
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${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
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$makeFlags "${makeFlagsArray[@]}" \
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$buildFlags "${buildFlagsArray[@]}"
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$buildFlags "${buildFlagsArray[@]}")
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printf 'build flags:'
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printf ' %q' "${flagsArray[@]}"
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echo
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make ${makefile:+-f $makefile} "${flagsArray[@]}"
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unset flagsArray
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fi
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runHook postBuild
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@ -744,11 +763,17 @@ buildPhase() {
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checkPhase() {
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runHook preCheck
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echo "check flags: $makeFlags ${makeFlagsArray[@]} $checkFlags ${checkFlagsArray[@]}"
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make ${makefile:+-f $makefile} \
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# shellcheck disable=SC2086
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local flagsArray=( \
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${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
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$makeFlags "${makeFlagsArray[@]}" \
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${checkFlags:-VERBOSE=y} "${checkFlagsArray[@]}" ${checkTarget:-check}
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${checkFlags:-VERBOSE=y} "${checkFlagsArray[@]}" ${checkTarget:-check})
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printf 'check flags:'
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printf ' %q' "${flagsArray[@]}"
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echo
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make ${makefile:+-f $makefile} "${flagsArray[@]}"
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unset flagsArray
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runHook postCheck
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}
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@ -762,10 +787,17 @@ installPhase() {
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fi
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installTargets=${installTargets:-install}
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echo "install flags: $installTargets $makeFlags ${makeFlagsArray[@]} $installFlags ${installFlagsArray[@]}"
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make ${makefile:+-f $makefile} $installTargets \
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# shellcheck disable=SC2086
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local flagsArray=( $installTargets \
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$makeFlags "${makeFlagsArray[@]}" \
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$installFlags "${installFlagsArray[@]}"
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$installFlags "${installFlagsArray[@]}")
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printf 'install flags:'
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printf ' %q' "${flagsArray[@]}"
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echo
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make ${makefile:+-f $makefile} "${flagsArray[@]}"
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unset flagsArray
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runHook postInstall
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}
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@ -799,16 +831,19 @@ fixupPhase() {
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fi
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if [ -n "$propagated" ]; then
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mkdir -p "${!outputDev}/nix-support"
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# shellcheck disable=SC2086
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printLines $propagated > "${!outputDev}/nix-support/propagated-native-build-inputs"
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fi
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else
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if [ -n "$propagatedBuildInputs" ]; then
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mkdir -p "${!outputDev}/nix-support"
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# shellcheck disable=SC2086
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printLines $propagatedBuildInputs > "${!outputDev}/nix-support/propagated-build-inputs"
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fi
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if [ -n "$propagatedNativeBuildInputs" ]; then
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mkdir -p "${!outputDev}/nix-support"
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# shellcheck disable=SC2086
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printLines $propagatedNativeBuildInputs > "${!outputDev}/nix-support/propagated-native-build-inputs"
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fi
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fi
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@ -822,6 +857,7 @@ fixupPhase() {
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if [ -n "$propagatedUserEnvPkgs" ]; then
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mkdir -p "${!outputBin}/nix-support"
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# shellcheck disable=SC2086
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printLines $propagatedUserEnvPkgs > "${!outputBin}/nix-support/propagated-user-env-packages"
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fi
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@ -832,11 +868,17 @@ fixupPhase() {
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installCheckPhase() {
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runHook preInstallCheck
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echo "installcheck flags: $makeFlags ${makeFlagsArray[@]} $installCheckFlags ${installCheckFlagsArray[@]}"
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make ${makefile:+-f $makefile} \
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# shellcheck disable=SC2086
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local flagsArray=( \
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${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
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$makeFlags "${makeFlagsArray[@]}" \
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$installCheckFlags "${installCheckFlagsArray[@]}" ${installCheckTarget:-installcheck}
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$installCheckFlags "${installCheckFlagsArray[@]}" ${installCheckTarget:-installcheck})
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printf 'installcheck flags:'
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printf ' %q' "${flagsArray[@]}"
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echo
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make ${makefile:+-f $makefile} "${flagsArray[@]}"
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unset flagsArray
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runHook postInstallCheck
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}
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@ -845,14 +887,18 @@ installCheckPhase() {
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distPhase() {
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runHook preDist
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echo "dist flags: $distFlags ${distFlagsArray[@]}"
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make ${makefile:+-f $makefile} $distFlags "${distFlagsArray[@]}" ${distTarget:-dist}
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# shellcheck disable=SC2086
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local flagsArray=($distFlags "${distFlagsArray[@]}" ${distTarget:-dist})
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echo 'dist flags: %q' "${flagsArray[@]}"
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make ${makefile:+-f $makefile} "${flagsArray[@]}"
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if [ "$dontCopyDist" != 1 ]; then
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mkdir -p "$out/tarballs"
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# Note: don't quote $tarballs, since we explicitly permit
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# wildcards in there.
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# shellcheck disable=SC2086
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cp -pvd ${tarballs:-*.tar.gz} $out/tarballs
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fi
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@ -894,14 +940,14 @@ genericBuild() {
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fi
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for curPhase in $phases; do
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if [ "$curPhase" = buildPhase -a -n "$dontBuild" ]; then continue; fi
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if [ "$curPhase" = checkPhase -a -z "$doCheck" ]; then continue; fi
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if [ "$curPhase" = installPhase -a -n "$dontInstall" ]; then continue; fi
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if [ "$curPhase" = fixupPhase -a -n "$dontFixup" ]; then continue; fi
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if [ "$curPhase" = installCheckPhase -a -z "$doInstallCheck" ]; then continue; fi
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if [ "$curPhase" = distPhase -a -z "$doDist" ]; then continue; fi
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if [[ "$curPhase" = buildPhase && -n "$dontBuild" ]]; then continue; fi
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if [[ "$curPhase" = checkPhase && -z "$doCheck" ]]; then continue; fi
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if [[ "$curPhase" = installPhase && -n "$dontInstall" ]]; then continue; fi
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if [[ "$curPhase" = fixupPhase && -n "$dontFixup" ]]; then continue; fi
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if [[ "$curPhase" = installCheckPhase && -z "$doInstallCheck" ]]; then continue; fi
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if [[ "$curPhase" = distPhase && -z "$doDist" ]]; then continue; fi
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if [ -n "$tracePhases" ]; then
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if [[ -n "$tracePhases" ]]; then
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echo
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echo "@ phase-started $out $curPhase"
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fi
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