nixpkgs/pkgs/stdenv/generic/setup.sh

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set -e
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set -o pipefail
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: ${outputs:=out}
######################################################################
# Hook handling.
# Run all hooks with the specified name in the order in which they
# were added, stopping if any fails (returns a non-zero exit
# code). The hooks for <hookName> are the shell function or variable
# <hookName>, and the values of the shell array <hookName>Hooks.
runHook() {
local hookName="$1"
shift
local var="$hookName"
if [[ "$hookName" =~ Hook$ ]]; then var+=s; else var+=Hooks; fi
local -n var
local hook
for hook in "_callImplicitHook 0 $hookName" "${var[@]}"; do
_eval "$hook" "$@"
done
return 0
}
# Run all hooks with the specified name, until one succeeds (returns a
# zero exit code). If none succeed, return a non-zero exit code.
runOneHook() {
local hookName="$1"
shift
local var="$hookName"
if [[ "$hookName" =~ Hook$ ]]; then var+=s; else var+=Hooks; fi
local -n var
local hook
for hook in "_callImplicitHook 1 $hookName" "${var[@]}"; do
if _eval "$hook" "$@"; then
return 0
fi
done
return 1
}
# Run the named hook, either by calling the function with that name or
# by evaluating the variable with that name. This allows convenient
# setting of hooks both from Nix expressions (as attributes /
# environment variables) and from shell scripts (as functions). If you
# want to allow multiple hooks, use runHook instead.
_callImplicitHook() {
local def="$1"
local hookName="$2"
case "$(type -t "$hookName")" in
(function|alias|builtin) "$hookName";;
(file) source "$hookName";;
(keyword) :;;
(*) if [ -z "${!hookName}" ]; then return "$def"; else eval "${!hookName}"; fi;;
esac
}
# A function wrapper around eval that ensures that return inside
# hooks exits the hook, not the caller.
_eval() {
local code="$1"
shift
if [ "$(type -t "$code")" = function ]; then
eval "$code \"\$@\""
else
eval "$code"
fi
}
######################################################################
# Logging.
# Obsolete.
stopNest() { true; }
header() { echo "$1"; }
closeNest() { true; }
# Prints a command such that all word splits are unambiguous. We need
# to split the command in three parts because the middle format string
# will be, and must be, repeated for each argument. The first argument
# goes before the ':' and is just for convenience.
echoCmd() {
printf "%s:" "$1"
shift
printf ' %q' "$@"
echo
}
######################################################################
# Error handling.
exitHandler() {
exitCode="$?"
set +e
if [ -n "$showBuildStats" ]; then
times > "$NIX_BUILD_TOP/.times"
local -a times=($(cat "$NIX_BUILD_TOP/.times"))
# Print the following statistics:
# - user time for the shell
# - system time for the shell
# - user time for all child processes
# - system time for all child processes
echo "build time elapsed: " "${times[@]}"
fi
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if [ "$exitCode" != 0 ]; then
runHook failureHook
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# If the builder had a non-zero exit code and
# $succeedOnFailure is set, create the file
# $out/nix-support/failed to signal failure, and exit
# normally. Otherwise, return the original exit code.
if [ -n "$succeedOnFailure" ]; then
echo "build failed with exit code $exitCode (ignored)"
mkdir -p "$out/nix-support"
printf "%s" "$exitCode" > "$out/nix-support/failed"
exit 0
fi
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else
runHook exitHook
fi
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exit "$exitCode"
}
trap "exitHandler" EXIT
######################################################################
# Helper functions.
addToSearchPathWithCustomDelimiter() {
local delimiter="$1"
local varName="$2"
local dir="$3"
if [ -d "$dir" ]; then
export "${varName}=${!varName}${!varName:+$delimiter}${dir}"
fi
}
PATH_DELIMITER=':'
addToSearchPath() {
addToSearchPathWithCustomDelimiter "${PATH_DELIMITER}" "$@"
}
ensureDir() {
echo "warning: ensureDir is deprecated; use mkdir instead" >&2
local dir
for dir in "$@"; do
if ! [ -x "$dir" ]; then mkdir -p "$dir"; fi
done
}
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# Add $1/lib* into rpaths.
# The function is used in multiple-outputs.sh hook,
# so it is defined here but tried after the hook.
_addRpathPrefix() {
if [ "$NIX_NO_SELF_RPATH" != 1 ]; then
export NIX_LDFLAGS="-rpath $1/lib $NIX_LDFLAGS"
if [ -n "$NIX_LIB64_IN_SELF_RPATH" ]; then
export NIX_LDFLAGS="-rpath $1/lib64 $NIX_LDFLAGS"
fi
if [ -n "$NIX_LIB32_IN_SELF_RPATH" ]; then
export NIX_LDFLAGS="-rpath $1/lib32 $NIX_LDFLAGS"
fi
fi
}
# Return success if the specified file is an ELF object.
isELF() {
local fn="$1"
local fd
local magic
exec {fd}< "$fn"
read -r -n 4 -u "$fd" magic
exec {fd}<&-
if [[ "$magic" =~ ELF ]]; then return 0; else return 1; fi
}
# Return success if the specified file is a script (i.e. starts with
# "#!").
isScript() {
local fn="$1"
local fd
local magic
if ! [ -x /bin/sh ]; then return 0; fi
exec {fd}< "$fn"
read -r -n 2 -u "$fd" magic
exec {fd}<&-
if [[ "$magic" =~ \#! ]]; then return 0; else return 1; fi
}
# printf unfortunately will print a trailing newline regardless
printLines() {
[[ "$#" -gt 0 ]] || return 0
printf '%s\n' "$@"
}
printWords() {
[[ "$#" -gt 0 ]] || return 0
printf '%s ' "$@"
}
######################################################################
# Initialisation.
# Set a fallback default value for SOURCE_DATE_EPOCH, used by some
# build tools to provide a deterministic substitute for the "current"
# time. Note that 1 = 1970-01-01 00:00:01. We don't use 0 because it
# confuses some applications.
export SOURCE_DATE_EPOCH
: ${SOURCE_DATE_EPOCH:=1}
# Wildcard expansions that don't match should expand to an empty list.
# This ensures that, for instance, "for i in *; do ...; done" does the
# right thing.
shopt -s nullglob
# Set up the initial path.
PATH=
for i in $initialPath; do
if [ "$i" = / ]; then i=; fi
addToSearchPath PATH "$i/bin"
done
if [ "$NIX_DEBUG" = 1 ]; then
echo "initial path: $PATH"
fi
# Check that the pre-hook initialised SHELL.
if [ -z "$SHELL" ]; then echo "SHELL not set"; exit 1; fi
BASH="$SHELL"
export CONFIG_SHELL="$SHELL"
# Dummy implementation of the paxmark function. On Linux, this is
# overwritten by paxctl's setup hook.
paxmark() { true; }
# Execute the pre-hook.
if [ -z "$shell" ]; then export shell="$SHELL"; fi
runHook preHook
# Allow the caller to augment buildInputs (it's not always possible to
# do this before the call to setup.sh, since the PATH is empty at that
# point; here we have a basic Unix environment).
runHook addInputsHook
# Recursively find all build inputs.
findInputs() {
local pkg="$1"
local var="$2"
local -n varDeref="$var"
local propagatedBuildInputsFile="$3"
# Stop if we've already added this one
[[ -z "${varDeref["$pkg"]}" ]] || return 0
varDeref["$pkg"]=1
if ! [ -e "$pkg" ]; then
echo "build input $pkg does not exist" >&2
exit 1
fi
if [ -f "$pkg" ]; then
source "$pkg"
fi
if [ -d "$pkg/bin" ]; then
addToSearchPath _PATH "$pkg/bin"
fi
if [ -f "$pkg/nix-support/setup-hook" ]; then
source "$pkg/nix-support/setup-hook"
fi
if [ -f "$pkg/nix-support/$propagatedBuildInputsFile" ]; then
local pkgNext
for pkgNext in $(< "$pkg/nix-support/$propagatedBuildInputsFile"); do
findInputs "$pkgNext" "$var" "$propagatedBuildInputsFile"
done
fi
}
if [ -z "$crossConfig" ]; then
# Not cross-compiling - both buildInputs (and variants like propagatedBuildInputs)
# are handled identically to nativeBuildInputs
declare -gA nativePkgs
for i in $nativeBuildInputs $buildInputs \
$defaultNativeBuildInputs $defaultBuildInputs \
$propagatedNativeBuildInputs $propagatedBuildInputs; do
findInputs "$i" nativePkgs propagated-native-build-inputs
done
else
declare -gA crossPkgs
for i in $buildInputs $defaultBuildInputs $propagatedBuildInputs; do
findInputs "$i" crossPkgs propagated-build-inputs
done
declare -gA nativePkgs
for i in $nativeBuildInputs $defaultNativeBuildInputs $propagatedNativeBuildInputs; do
findInputs "$i" nativePkgs propagated-native-build-inputs
done
fi
# Set the relevant environment variables to point to the build inputs
# found above.
_addToNativeEnv() {
local pkg="$1"
# Run the package-specific hooks set by the setup-hook scripts.
runHook envHook "$pkg"
}
for i in "${!nativePkgs[@]}"; do
_addToNativeEnv "$i"
done
_addToCrossEnv() {
local pkg="$1"
# Run the package-specific hooks set by the setup-hook scripts.
runHook crossEnvHook "$pkg"
}
for i in "${!crossPkgs[@]}"; do
_addToCrossEnv "$i"
done
_addRpathPrefix "$out"
# Set the TZ (timezone) environment variable, otherwise commands like
# `date' will complain (e.g., `Tue Mar 9 10:01:47 Local time zone must
# be set--see zic manual page 2004').
export TZ=UTC
# Set the prefix. This is generally $out, but it can be overriden,
# for instance if we just want to perform a test build/install to a
# temporary location and write a build report to $out.
if [ -z "$prefix" ]; then
prefix="$out";
fi
if [ "$useTempPrefix" = 1 ]; then
prefix="$NIX_BUILD_TOP/tmp_prefix";
fi
PATH=$_PATH${_PATH:+:}$PATH
if [ "$NIX_DEBUG" = 1 ]; then
echo "final path: $PATH"
fi
# Make GNU Make produce nested output.
export NIX_INDENT_MAKE=1
# Normalize the NIX_BUILD_CORES variable. The value might be 0, which
# means that we're supposed to try and auto-detect the number of
# available CPU cores at run-time.
if [ -z "${NIX_BUILD_CORES:-}" ]; then
NIX_BUILD_CORES="1"
elif [ "$NIX_BUILD_CORES" -le 0 ]; then
NIX_BUILD_CORES=$(nproc 2>/dev/null || true)
if expr >/dev/null 2>&1 "$NIX_BUILD_CORES" : "^[0-9][0-9]*$"; then
:
else
NIX_BUILD_CORES="1"
fi
fi
export NIX_BUILD_CORES
# Prevent OpenSSL-based applications from using certificates in
# /etc/ssl.
# Leave it in shells for convenience.
if [ -z "$SSL_CERT_FILE" ] && [ -z "$IN_NIX_SHELL" ]; then
export SSL_CERT_FILE=/no-cert-file.crt
fi
######################################################################
# Textual substitution functions.
substitute() {
local input="$1"
local output="$2"
shift 2
if [ ! -f "$input" ]; then
echo "${FUNCNAME[0]}(): ERROR: file '$input' does not exist" >&2
return 1
fi
local content
# read returns non-0 on EOF, so we want read to fail
if IFS='' read -r -N 0 content < "$input"; then
echo "${FUNCNAME[0]}(): ERROR: File \"$input\" has null bytes, won't process" >&2
return 1
fi
while (( "$#" )); do
case "$1" in
--replace)
pattern="$2"
replacement="$3"
shift 3
;;
--subst-var)
local varName="$2"
shift 2
# check if the used nix attribute name is a valid bash name
if ! [[ "$varName" =~ ^[a-zA-Z_][a-zA-Z0-9_]*$ ]]; then
echo "${FUNCNAME[0]}(): WARNING: substitution variables should be valid bash names," >&2
echo " \"$varName\" isn't and therefore was skipped; it might be caused" >&2
echo " by multi-line phases in variables - see #14907 for details." >&2
continue
fi
pattern="@$varName@"
replacement="${!varName}"
;;
--subst-var-by)
pattern="@$2@"
replacement="$3"
shift 3
;;
*)
echo "${FUNCNAME[0]}(): ERROR: Invalid command line argument: $1" >&2
return 1
;;
esac
content="${content//"$pattern"/$replacement}"
done
if [ -e "$output" ]; then chmod +w "$output"; fi
printf "%s" "$content" > "$output"
}
substituteInPlace() {
local fileName="$1"
shift
substitute "$fileName" "$fileName" "$@"
}
# Substitute all environment variables that do not start with an upper-case
# character or underscore. Note: other names that aren't bash-valid
# will cause an error during `substitute --subst-var`.
substituteAll() {
local input="$1"
local output="$2"
local -a args=()
# Select all environment variables that start with a lowercase character.
for varName in $(env | sed -e $'s/^\([a-z][^= \t]*\)=.*/\\1/; t \n d'); do
if [ "$NIX_DEBUG" = "1" ]; then
echo "@${varName}@ -> '${!varName}'"
fi
args+=("--subst-var" "$varName")
done
substitute "$input" "$output" "${args[@]}"
}
substituteAllInPlace() {
local fileName="$1"
shift
substituteAll "$fileName" "$fileName" "$@"
}
######################################################################
# What follows is the generic builder.
# This function is useful for debugging broken Nix builds. It dumps
# all environment variables to a file `env-vars' in the build
# directory. If the build fails and the `-K' option is used, you can
# then go to the build directory and source in `env-vars' to reproduce
# the environment used for building.
dumpVars() {
if [ "$noDumpEnvVars" != 1 ]; then
export > "$NIX_BUILD_TOP/env-vars" || true
fi
}
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# Utility function: echo the base name of the given path, with the
# prefix `HASH-' removed, if present.
stripHash() {
local strippedName
# On separate line for `set -e`
strippedName="$(basename "$1")"
if echo "$strippedName" | grep -q '^[a-z0-9]\{32\}-'; then
echo "$strippedName" | cut -c34-
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else
echo "$strippedName"
fi
}
unpackCmdHooks+=(_defaultUnpack)
_defaultUnpack() {
local fn="$1"
if [ -d "$fn" ]; then
# We can't preserve hardlinks because they may have been
# introduced by store optimization, which might break things
# in the build.
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cp -pr --reflink=auto "$fn" "$(stripHash "$fn")"
else
case "$fn" in
*.tar.xz | *.tar.lzma)
# Don't rely on tar knowing about .xz.
xz -d < "$fn" | tar xf -
;;
*.tar | *.tar.* | *.tgz | *.tbz2)
# GNU tar can automatically select the decompression method
# (info "(tar) gzip").
tar xf "$fn"
;;
*)
return 1
;;
esac
fi
}
unpackFile() {
curSrc="$1"
header "unpacking source archive $curSrc" 3
if ! runOneHook unpackCmd "$curSrc"; then
echo "do not know how to unpack source archive $curSrc"
exit 1
fi
}
unpackPhase() {
runHook preUnpack
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if [ -z "$srcs" ]; then
if [ -z "$src" ]; then
# shellcheck disable=SC2016
echo 'variable $src or $srcs should point to the source'
exit 1
fi
srcs="$src"
fi
# To determine the source directory created by unpacking the
# source archives, we record the contents of the current
# directory, then look below which directory got added. Yeah,
# it's rather hacky.
local dirsBefore=""
for i in *; do
if [ -d "$i" ]; then
dirsBefore="$dirsBefore $i "
fi
done
# Unpack all source archives.
for i in $srcs; do
unpackFile "$i"
done
# Find the source directory.
if [ -n "$setSourceRoot" ]; then
runOneHook setSourceRoot
elif [ -z "$sourceRoot" ]; then
sourceRoot=
for i in *; do
if [ -d "$i" ]; then
case $dirsBefore in
*\ $i\ *)
;;
*)
if [ -n "$sourceRoot" ]; then
echo "unpacker produced multiple directories"
exit 1
fi
sourceRoot="$i"
;;
esac
fi
done
fi
if [ -z "$sourceRoot" ]; then
echo "unpacker appears to have produced no directories"
exit 1
fi
echo "source root is $sourceRoot"
# By default, add write permission to the sources. This is often
# necessary when sources have been copied from other store
# locations.
if [ "$dontMakeSourcesWritable" != 1 ]; then
chmod -R u+w "$sourceRoot"
fi
runHook postUnpack
}
patchPhase() {
runHook prePatch
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for i in $patches; do
header "applying patch $i" 3
local uncompress=cat
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case "$i" in
*.gz)
uncompress="gzip -d"
;;
*.bz2)
uncompress="bzip2 -d"
;;
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*.xz)
uncompress="xz -d"
;;
*.lzma)
uncompress="lzma -d"
;;
esac
# "2>&1" is a hack to make patch fail if the decompressor fails (nonexistent patch, etc.)
# shellcheck disable=SC2086
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$uncompress < "$i" 2>&1 | patch ${patchFlags:--p1}
done
runHook postPatch
}
fixLibtool() {
sed -i -e 's^eval sys_lib_.*search_path=.*^^' "$1"
}
configurePhase() {
runHook preConfigure
if [[ -z "$configureScript" && -x ./configure ]]; then
configureScript=./configure
fi
if [ -z "$dontFixLibtool" ]; then
local i
find . -iname "ltmain.sh" -print0 | while IFS='' read -r -d '' i; do
echo "fixing libtool script $i"
fixLibtool "$i"
done
fi
if [[ -z "$dontAddPrefix" && -n "$prefix" ]]; then
configureFlags="${prefixKey:---prefix=}$prefix $configureFlags"
fi
# Add --disable-dependency-tracking to speed up some builds.
if [ -z "$dontAddDisableDepTrack" ]; then
if [ -f "$configureScript" ] && grep -q dependency-tracking "$configureScript"; then
configureFlags="--disable-dependency-tracking $configureFlags"
fi
fi
# By default, disable static builds.
if [ -z "$dontDisableStatic" ]; then
if [ -f "$configureScript" ] && grep -q enable-static "$configureScript"; then
configureFlags="--disable-static $configureFlags"
fi
fi
if [ -n "$configureScript" ]; then
# shellcheck disable=SC2086
local flagsArray=($configureFlags "${configureFlagsArray[@]}")
echoCmd 'configure flags' "${flagsArray[@]}"
# shellcheck disable=SC2086
$configureScript "${flagsArray[@]}"
unset flagsArray
else
echo "no configure script, doing nothing"
fi
runHook postConfigure
}
buildPhase() {
runHook preBuild
if [[ -z "$makeFlags" && ! ( -n "$makefile" || -e Makefile || -e makefile || -e GNUmakefile[[ ) ]]; then
echo "no Makefile, doing nothing"
else
# See https://github.com/NixOS/nixpkgs/pull/1354#issuecomment-31260409
makeFlags="SHELL=$SHELL $makeFlags"
# shellcheck disable=SC2086
local flagsArray=( \
${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
$makeFlags "${makeFlagsArray[@]}" \
$buildFlags "${buildFlagsArray[@]}")
echoCmd 'build flags' "${flagsArray[@]}"
make ${makefile:+-f $makefile} "${flagsArray[@]}"
unset flagsArray
fi
runHook postBuild
}
checkPhase() {
runHook preCheck
# shellcheck disable=SC2086
local flagsArray=( \
${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
$makeFlags "${makeFlagsArray[@]}" \
${checkFlags:-VERBOSE=y} "${checkFlagsArray[@]}" ${checkTarget:-check})
echoCmd 'check flags' "${flagsArray[@]}"
make ${makefile:+-f $makefile} "${flagsArray[@]}"
unset flagsArray
runHook postCheck
}
installPhase() {
runHook preInstall
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if [ -n "$prefix" ]; then
mkdir -p "$prefix"
fi
installTargets="${installTargets:-install}"
# shellcheck disable=SC2086
local flagsArray=( $installTargets \
$makeFlags "${makeFlagsArray[@]}" \
$installFlags "${installFlagsArray[@]}")
echoCmd 'install flags' "${flagsArray[@]}"
make ${makefile:+-f $makefile} "${flagsArray[@]}"
unset flagsArray
runHook postInstall
}
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# The fixup phase performs generic, package-independent stuff, like
# stripping binaries, running patchelf and setting
# propagated-build-inputs.
fixupPhase() {
# Make sure everything is writable so "strip" et al. work.
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for output in $outputs; do
if [ -e "${!output}" ]; then chmod -R u+w "${!output}"; fi
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done
runHook preFixup
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# Apply fixup to each output.
local output
for output in $outputs; do
prefix="${!output}" runHook fixupOutput
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done
# Propagate build inputs and setup hook into the development output.
if [ -z "$crossConfig" ]; then
# Not cross-compiling - propagatedBuildInputs are handled identically to propagatedNativeBuildInputs
local propagated="$propagatedNativeBuildInputs"
if [ -n "$propagatedBuildInputs" ]; then
propagated+="${propagated:+ }$propagatedBuildInputs"
fi
if [ -n "$propagated" ]; then
mkdir -p "${!outputDev}/nix-support"
# shellcheck disable=SC2086
printWords $propagated > "${!outputDev}/nix-support/propagated-native-build-inputs"
fi
else
if [ -n "$propagatedBuildInputs" ]; then
mkdir -p "${!outputDev}/nix-support"
# shellcheck disable=SC2086
printWords $propagatedBuildInputs > "${!outputDev}/nix-support/propagated-build-inputs"
fi
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if [ -n "$propagatedNativeBuildInputs" ]; then
mkdir -p "${!outputDev}/nix-support"
# shellcheck disable=SC2086
printWords $propagatedNativeBuildInputs > "${!outputDev}/nix-support/propagated-native-build-inputs"
fi
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fi
if [ -n "$setupHook" ]; then
mkdir -p "${!outputDev}/nix-support"
substituteAll "$setupHook" "${!outputDev}/nix-support/setup-hook"
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fi
# Propagate user-env packages into the output with binaries, TODO?
if [ -n "$propagatedUserEnvPkgs" ]; then
mkdir -p "${!outputBin}/nix-support"
# shellcheck disable=SC2086
printWords $propagatedUserEnvPkgs > "${!outputBin}/nix-support/propagated-user-env-packages"
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fi
runHook postFixup
}
installCheckPhase() {
runHook preInstallCheck
# shellcheck disable=SC2086
local flagsArray=( \
${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
$makeFlags "${makeFlagsArray[@]}" \
$installCheckFlags "${installCheckFlagsArray[@]}" ${installCheckTarget:-installcheck})
echoCmd 'installcheck flags' "${flagsArray[@]}"
make ${makefile:+-f $makefile} "${flagsArray[@]}"
unset flagsArray
runHook postInstallCheck
}
distPhase() {
runHook preDist
# shellcheck disable=SC2086
local flagsArray=($distFlags "${distFlagsArray[@]}" ${distTarget:-dist})
echo 'dist flags: %q' "${flagsArray[@]}"
make ${makefile:+-f $makefile} "${flagsArray[@]}"
if [ "$dontCopyDist" != 1 ]; then
mkdir -p "$out/tarballs"
# Note: don't quote $tarballs, since we explicitly permit
# wildcards in there.
# shellcheck disable=SC2086
cp -pvd ${tarballs:-*.tar.gz} "$out/tarballs"
fi
runHook postDist
}
showPhaseHeader() {
local phase="$1"
case "$phase" in
unpackPhase) header "unpacking sources";;
patchPhase) header "patching sources";;
configurePhase) header "configuring";;
buildPhase) header "building";;
checkPhase) header "running tests";;
installPhase) header "installing";;
fixupPhase) header "post-installation fixup";;
installCheckPhase) header "running install tests";;
*) header "$phase";;
esac
}
genericBuild() {
if [ -f "$buildCommandPath" ]; then
. "$buildCommandPath"
return
fi
if [ -n "$buildCommand" ]; then
eval "$buildCommand"
return
fi
if [ -z "$phases" ]; then
phases="$prePhases unpackPhase patchPhase $preConfigurePhases \
configurePhase $preBuildPhases buildPhase checkPhase \
$preInstallPhases installPhase $preFixupPhases fixupPhase installCheckPhase \
$preDistPhases distPhase $postPhases";
fi
for curPhase in $phases; do
if [[ "$curPhase" = buildPhase && -n "$dontBuild" ]]; then continue; fi
if [[ "$curPhase" = checkPhase && -z "$doCheck" ]]; then continue; fi
if [[ "$curPhase" = installPhase && -n "$dontInstall" ]]; then continue; fi
if [[ "$curPhase" = fixupPhase && -n "$dontFixup" ]]; then continue; fi
if [[ "$curPhase" = installCheckPhase && -z "$doInstallCheck" ]]; then continue; fi
if [[ "$curPhase" = distPhase && -z "$doDist" ]]; then continue; fi
if [[ -n "$tracePhases" ]]; then
echo
echo "@ phase-started $out $curPhase"
fi
showPhaseHeader "$curPhase"
dumpVars
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# Evaluate the variable named $curPhase if it exists, otherwise the
# function named $curPhase.
eval "${!curPhase:-$curPhase}"
if [ "$curPhase" = unpackPhase ]; then
cd "${sourceRoot:-.}"
fi
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if [ -n "$tracePhases" ]; then
echo
echo "@ phase-succeeded $out $curPhase"
fi
done
}
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# Execute the post-hooks.
runHook postHook
# Execute the global user hook (defined through the Nixpkgs
# configuration option stdenv.userHook). This can be used to set
# global compiler optimisation flags, for instance.
runHook userHook
dumpVars