set -eu set -o pipefail if (( "${NIX_DEBUG:-0}" >= 6 )); then set -x fi : ${outputs:=out} ###################################################################### # Hook handling. # Run all hooks with the specified name in the order in which they # were added, stopping if any fails (returns a non-zero exit # code). The hooks for are the shell function or variable # , and the values of the shell array ‘Hooks’. runHook() { local oldOpts="$(shopt -po nounset)" set -u # May be called from elsewhere, so do `set -u`. local hookName="$1" shift local hooksSlice="${hookName%Hook}Hooks[@]" local hook # Hack around old bash being bad and thinking empty arrays are # undefined. for hook in "_callImplicitHook 0 $hookName" ${!hooksSlice+"${!hooksSlice}"}; do _eval "$hook" "$@" set -u # To balance `_eval` done eval "${oldOpts}" return 0 } # Run all hooks with the specified name, until one succeeds (returns a # zero exit code). If none succeed, return a non-zero exit code. runOneHook() { local oldOpts="$(shopt -po nounset)" set -u # May be called from elsewhere, so do `set -u`. local hookName="$1" shift local hooksSlice="${hookName%Hook}Hooks[@]" local hook ret=1 # Hack around old bash like above for hook in "_callImplicitHook 1 $hookName" ${!hooksSlice+"${!hooksSlice}"}; do if _eval "$hook" "$@"; then ret=0 break fi set -u # To balance `_eval` done eval "${oldOpts}" return "$ret" } # 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() { set -u local def="$1" local hookName="$2" case "$(type -t "$hookName")" in (function|alias|builtin) set +u "$hookName";; (file) set +u source "$hookName";; (keyword) :;; (*) if [ -z "${!hookName:-}" ]; then return "$def"; else set +u eval "${!hookName}" fi;; esac # `_eval` expects hook to need nounset disable and leave it # disabled anyways, so Ok to to delegate. The alternative of a # return trap is no good because it would affect nested returns. } # A function wrapper around ‘eval’ that ensures that ‘return’ inside # hooks exits the hook, not the caller. Also will only pass args if # command can take them _eval() { if [ "$(type -t "$1")" = function ]; then set +u "$@" # including args else set +u eval "$1" fi # `run*Hook` reenables `set -u` } ###################################################################### # 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 if (( "$exitCode" != 0 )); then runHook failureHook # 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 else runHook exitHook fi 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}}${dir}" fi } addToSearchPath() { addToSearchPathWithCustomDelimiter ":" "$@" } # 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:-0}" != 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" = $'\177ELF' ]; then return 0; else return 1; fi } # Return success if the specified file is a script (i.e. starts with # "#!"). isScript() { local fn="$1" local fd local magic exec {fd}< "$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() { (( "$#" > 0 )) || return 0 printf '%s\n' "$@" } printWords() { (( "$#" > 0 )) || return 0 printf '%s ' "$@" } ###################################################################### # 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= HOST_PATH= for i in $initialPath; do if [ "$i" = / ]; then i=; fi addToSearchPath PATH "$i/bin" # For backward compatibility, we add initial path to HOST_PATH so # it can be used in auto patch-shebangs. Unfortunately this will # not work with cross compilation. if [ -z "${strictDeps-}" ]; then addToSearchPath HOST_PATH "$i/bin" fi done if (( "${NIX_DEBUG:-0}" >= 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" # 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 # Package accumulators # shellcheck disable=SC2034 declare -a pkgsBuildBuild pkgsBuildHost pkgsBuildTarget declare -a pkgsHostHost pkgsHostTarget declare -a pkgsTargetTarget declare -ra pkgBuildAccumVars=(pkgsBuildBuild pkgsBuildHost pkgsBuildTarget) declare -ra pkgHostAccumVars=(pkgsHostHost pkgsHostTarget) declare -ra pkgTargetAccumVars=(pkgsTargetTarget) declare -ra pkgAccumVarVars=(pkgBuildAccumVars pkgHostAccumVars pkgTargetAccumVars) # Hooks declare -a envBuildBuildHooks envBuildHostHooks envBuildTargetHooks declare -a envHostHostHooks envHostTargetHooks declare -a envTargetTargetHooks declare -ra pkgBuildHookVars=(envBuildBuildHook envBuildHostHook envBuildTargetHook) declare -ra pkgHostHookVars=(envHostHostHook envHostTargetHook) declare -ra pkgTargetHookVars=(envTargetTargetHook) declare -ra pkgHookVarVars=(pkgBuildHookVars pkgHostHookVars pkgTargetHookVars) # Add env hooks for all sorts of deps with the specified host offset. addEnvHooks() { local depHostOffset="$1" shift local pkgHookVarsSlice="${pkgHookVarVars[$depHostOffset + 1]}[@]" local pkgHookVar for pkgHookVar in "${!pkgHookVarsSlice}"; do eval "${pkgHookVar}s"'+=("$@")' done } # Propagated dep files declare -ra propagatedBuildDepFiles=( propagated-build-build-deps propagated-native-build-inputs # Legacy name for back-compat propagated-build-target-deps ) declare -ra propagatedHostDepFiles=( propagated-host-host-deps propagated-build-inputs # Legacy name for back-compat ) declare -ra propagatedTargetDepFiles=( propagated-target-target-deps ) declare -ra propagatedDepFilesVars=( propagatedBuildDepFiles propagatedHostDepFiles propagatedTargetDepFiles ) # Platform offsets: build = -1, host = 0, target = 1 declare -ra allPlatOffsets=(-1 0 1) # Mutually-recursively find all build inputs. See the dependency section of the # stdenv chapter of the Nixpkgs manual for the specification this algorithm # implements. findInputs() { local -r pkg="$1" local -ri hostOffset="$2" local -ri targetOffset="$3" # Sanity check (( "$hostOffset" <= "$targetOffset" )) || exit -1 local varVar="${pkgAccumVarVars[$hostOffset + 1]}" local varRef="$varVar[\$targetOffset - \$hostOffset]" local var="${!varRef}" unset -v varVar varRef # TODO(@Ericson2314): Restore using associative array once Darwin # nix-shell doesn't use impure bash. This should replace the O(n) # case with an O(1) hash map lookup, assuming bash is implemented # well :D. local varSlice="$var[*]" # ${..-} to hack around old bash empty array problem case "${!varSlice-}" in *" $pkg "*) return 0 ;; esac unset -v varSlice eval "$var"'+=("$pkg")' if ! [ -e "$pkg" ]; then echo "build input $pkg does not exist" >&2 exit 1 fi # The current package's host and target offset together # provide a <=-preserving homomorphism from the relative # offsets to current offset function mapOffset() { local -ri inputOffset="$1" if (( "$inputOffset" <= 0 )); then local -ri outputOffset="$inputOffset + $hostOffset" else local -ri outputOffset="$inputOffset - 1 + $targetOffset" fi echo "$outputOffset" } # Host offset relative to that of the package whose immediate # dependencies we are currently exploring. local -i relHostOffset for relHostOffset in "${allPlatOffsets[@]}"; do # `+ 1` so we start at 0 for valid index local files="${propagatedDepFilesVars[$relHostOffset + 1]}" # Host offset relative to the package currently being # built---as absolute an offset as will be used. local -i hostOffsetNext hostOffsetNext="$(mapOffset relHostOffset)" # Ensure we're in bounds relative to the package currently # being built. [[ "${allPlatOffsets[*]}" = *"$hostOffsetNext"* ]] || continue # Target offset relative to the *host* offset of the package # whose immediate dependencies we are currently exploring. local -i relTargetOffset for relTargetOffset in "${allPlatOffsets[@]}"; do (( "$relHostOffset" <= "$relTargetOffset" )) || continue local fileRef="${files}[$relTargetOffset - $relHostOffset]" local file="${!fileRef}" unset -v fileRef # Target offset relative to the package currently being # built. local -i targetOffsetNext targetOffsetNext="$(mapOffset relTargetOffset)" # Once again, ensure we're in bounds relative to the # package currently being built. [[ "${allPlatOffsets[*]}" = *"$targetOffsetNext"* ]] || continue [[ -f "$pkg/nix-support/$file" ]] || continue local pkgNext for pkgNext in $(< "$pkg/nix-support/$file"); do findInputs "$pkgNext" "$hostOffsetNext" "$targetOffsetNext" done done done } # Make sure all are at least defined as empty : ${depsBuildBuild=} ${depsBuildBuildPropagated=} : ${nativeBuildInputs=} ${propagatedNativeBuildInputs=} ${defaultNativeBuildInputs=} : ${depsBuildTarget=} ${depsBuildTargetPropagated=} : ${depsHostHost=} ${depsHostHostPropagated=} : ${buildInputs=} ${propagatedBuildInputs=} ${defaultBuildInputs=} : ${depsTargetTarget=} ${depsTargetTargetPropagated=} for pkg in $depsBuildBuild $depsBuildBuildPropagated; do findInputs "$pkg" -1 -1 done for pkg in $nativeBuildInputs $propagatedNativeBuildInputs; do findInputs "$pkg" -1 0 done for pkg in $depsBuildTarget $depsBuildTargetPropagated; do findInputs "$pkg" -1 1 done for pkg in $depsHostHost $depsHostHostPropagated; do findInputs "$pkg" 0 0 done for pkg in $buildInputs $propagatedBuildInputs ; do findInputs "$pkg" 0 1 done for pkg in $depsTargetTarget $depsTargetTargetPropagated; do findInputs "$pkg" 1 1 done # Default inputs must be processed last for pkg in $defaultNativeBuildInputs; do findInputs "$pkg" -1 0 done for pkg in $defaultBuildInputs; do findInputs "$pkg" 0 1 done # Add package to the future PATH and run setup hooks activatePackage() { local pkg="$1" local -ri hostOffset="$2" local -ri targetOffset="$3" # Sanity check (( "$hostOffset" <= "$targetOffset" )) || exit -1 if [ -f "$pkg" ]; then local oldOpts="$(shopt -po nounset)" set +u source "$pkg" eval "$oldOpts" fi # Only dependencies whose host platform is guaranteed to match the # build platform are included here. That would be `depsBuild*`, # and legacy `nativeBuildInputs`, in general. If we aren't cross # compiling, however, everything can be put on the PATH. To ease # the transition, we do include everything in thatcase. # # TODO(@Ericson2314): Don't special-case native compilation if [[ ( -z "${strictDeps-}" || "$hostOffset" -le -1 ) && -d "$pkg/bin" ]]; then addToSearchPath _PATH "$pkg/bin" fi if [[ "$hostOffset" -eq 0 && -d "$pkg/bin" ]]; then addToSearchPath _HOST_PATH "$pkg/bin" fi if [[ -f "$pkg/nix-support/setup-hook" ]]; then local oldOpts="$(shopt -po nounset)" set +u source "$pkg/nix-support/setup-hook" eval "$oldOpts" fi } _activatePkgs() { local -i hostOffset targetOffset local pkg for hostOffset in "${allPlatOffsets[@]}"; do local pkgsVar="${pkgAccumVarVars[$hostOffset + 1]}" for targetOffset in "${allPlatOffsets[@]}"; do (( "$hostOffset" <= "$targetOffset" )) || continue local pkgsRef="${pkgsVar}[$targetOffset - $hostOffset]" local pkgsSlice="${!pkgsRef}[@]" for pkg in ${!pkgsSlice+"${!pkgsSlice}"}; do activatePackage "$pkg" "$hostOffset" "$targetOffset" done done done } # Run the package setup hooks and build _PATH _activatePkgs # Set the relevant environment variables to point to the build inputs # found above. # # These `depOffset`s, beyond indexing the arrays, also tell the env # hook what sort of dependency (ignoring propagatedness) is being # passed to the env hook. In a real language, we'd append a closure # with this information to the relevant env hook array, but bash # doesn't have closures, so it's easier to just pass this in. _addToEnv() { local -i depHostOffset depTargetOffset local pkg for depHostOffset in "${allPlatOffsets[@]}"; do local hookVar="${pkgHookVarVars[$depHostOffset + 1]}" local pkgsVar="${pkgAccumVarVars[$depHostOffset + 1]}" for depTargetOffset in "${allPlatOffsets[@]}"; do (( "$depHostOffset" <= "$depTargetOffset" )) || continue local hookRef="${hookVar}[$depTargetOffset - $depHostOffset]" if [[ -z "${strictDeps-}" ]]; then # Keep track of which packages we have visited before. local visitedPkgs="" # Apply environment hooks to all packages during native # compilation to ease the transition. # # TODO(@Ericson2314): Don't special-case native compilation for pkg in \ ${pkgsBuildBuild+"${pkgsBuildBuild[@]}"} \ ${pkgsBuildHost+"${pkgsBuildHost[@]}"} \ ${pkgsBuildTarget+"${pkgsBuildTarget[@]}"} \ ${pkgsHostHost+"${pkgsHostHost[@]}"} \ ${pkgsHostTarget+"${pkgsHostTarget[@]}"} \ ${pkgsTargetTarget+"${pkgsTargetTarget[@]}"} do if [[ "$visitedPkgs" = *"$pkg"* ]]; then continue fi runHook "${!hookRef}" "$pkg" visitedPkgs+=" $pkg" done else local pkgsRef="${pkgsVar}[$depTargetOffset - $depHostOffset]" local pkgsSlice="${!pkgsRef}[@]" for pkg in ${!pkgsSlice+"${!pkgsSlice}"}; do runHook "${!hookRef}" "$pkg" done fi done done } # Run the package-specific hooks set by the setup-hook scripts. _addToEnv _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:+:}}$PATH" HOST_PATH="${_HOST_PATH-}${_HOST_PATH:+${HOST_PATH:+:}}$HOST_PATH" if (( "${NIX_DEBUG:-0}" >= 1 )); then echo "final path: $PATH" echo "final host path: $HOST_PATH" fi unset _PATH unset _HOST_PATH # Make GNU Make produce nested output. export NIX_INDENT_MAKE=1 # Normalize the NIX_BUILD_CORES variable. The value might be 0, which # means that we're supposed to try and auto-detect the number of # available CPU cores at run-time. if [ -z "${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 SSL libraries from using certificates in /etc/ssl, unless set explicitly. # Leave it in impure shells for convenience. if [ -z "${NIX_SSL_CERT_FILE:-}" ] && [ "${IN_NIX_SHELL:-}" != "impure" ]; then export NIX_SSL_CERT_FILE=/no-cert-file.crt fi # Another variant left for compatibility. if [ -z "${SSL_CERT_FILE:-}" ] && [ "${IN_NIX_SHELL:-}" != "impure" ]; then export SSL_CERT_FILE=/no-cert-file.crt fi ###################################################################### # Textual substitution functions. substituteStream() { local var=$1 local description=$2 shift 2 while (( "$#" )); do case "$1" in --replace) pattern="$2" replacement="$3" shift 3 local savedvar savedvar="${!var}" eval "$var"'=${'"$var"'//"$pattern"/"$replacement"}' if [ "$pattern" != "$replacement" ]; then if [ "${!var}" == "$savedvar" ]; then echo "substituteStream(): WARNING: pattern '$pattern' doesn't match anything in $description" >&2 fi fi ;; --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 "substituteStream(): ERROR: substitution variables must be valid Bash names, \"$varName\" isn't." >&2 return 1 fi if [ -z ${!varName+x} ]; then echo "substituteStream(): ERROR: variable \$$varName is unset" >&2 return 1 fi pattern="@$varName@" replacement="${!varName}" eval "$var"'=${'"$var"'//"$pattern"/"$replacement"}' ;; --subst-var-by) pattern="@$2@" replacement="$3" eval "$var"'=${'"$var"'//"$pattern"/"$replacement"}' shift 3 ;; *) echo "substituteStream(): ERROR: Invalid command line argument: $1" >&2 return 1 ;; esac done printf "%s" "${!var}" } consumeEntire() { # read returns non-0 on EOF, so we want read to fail if IFS='' read -r -N 0 $1; then echo "consumeEntire(): ERROR: Input null bytes, won't process" >&2 return 1 fi } substitute() { local input="$1" local output="$2" shift 2 if [ ! -f "$input" ]; then echo "substitute(): ERROR: file '$input' does not exist" >&2 return 1 fi local content consumeEntire content < "$input" if [ -e "$output" ]; then chmod +w "$output"; fi substituteStream content "file '$input'" "$@" > "$output" } substituteInPlace() { local fileName="$1" shift substitute "$fileName" "$fileName" "$@" } _allFlags() { for varName in $(awk 'BEGIN { for (v in ENVIRON) if (v ~ /^[a-z][a-zA-Z0-9_]*$/) print v }'); do if (( "${NIX_DEBUG:-0}" >= 1 )); then printf "@%s@ -> %q\n" "${varName}" "${!varName}" fi args+=("--subst-var" "$varName") done } substituteAllStream() { local -a args=() _allFlags substituteStream "$1" "$2" "${args[@]}" } # Substitute all environment variables that start with a lowercase character and # are valid Bash names. substituteAll() { local input="$1" local output="$2" local -a args=() _allFlags substitute "$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 [ "${noDumpEnvVars:-0}" != 1 ]; then export > "$NIX_BUILD_TOP/env-vars" || true fi } # 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 "$strippedName" | cut -c34- else echo "$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. cp -pr --reflink=auto -- "$fn" "$(stripHash "$fn")" else case "$fn" in *.tar.xz | *.tar.lzma | *.txz) # Don't rely on tar knowing about .xz. xz -d < "$fn" | tar xf - ;; *.tar | *.tar.* | *.tgz | *.tbz2 | *.tbz) # GNU tar can automatically select the decompression method # (info "(tar) gzip"). tar xf "$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 $curSrc" exit 1 fi } unpackPhase() { runHook preUnpack if [ -z "${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. # set to empty if unset : ${sourceRoot=} if [ -n "${setSourceRoot:-}" ]; then runOneHook setSourceRoot elif [ -z "$sourceRoot" ]; then for i in *; do if [ -d "$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:-0}" != 1 ]; then chmod -R u+w -- "$sourceRoot" fi runHook postUnpack } patchPhase() { runHook prePatch for i in ${patches:-}; do header "applying patch $i" 3 local uncompress=cat case "$i" in *.gz) uncompress="gzip -d" ;; *.bz2) uncompress="bzip2 -d" ;; *.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 $uncompress < "$i" 2>&1 | patch ${patchFlags:--p1} done runHook postPatch } fixLibtool() { sed -i -e 's^eval sys_lib_.*search_path=.*^^' "$1" } configurePhase() { runHook preConfigure # set to empty if unset : ${configureScript=} : ${configureFlags=} if [[ -z "$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 # Old bash empty array hack # shellcheck disable=SC2086 local flagsArray=( $configureFlags ${configureFlagsArray+"${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 # set to empty if unset : ${makeFlags=} if [[ -z "$makeFlags" && -z "${makefile:-}" && ! ( -e Makefile || -e makefile || -e GNUmakefile ) ]]; then echo "no Makefile, doing nothing" else foundMakefile=1 # Old bash empty array hack # shellcheck disable=SC2086 local flagsArray=( ${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} SHELL=$SHELL $makeFlags ${makeFlagsArray+"${makeFlagsArray[@]}"} $buildFlags ${buildFlagsArray+"${buildFlagsArray[@]}"} ) echoCmd 'build flags' "${flagsArray[@]}" make ${makefile:+-f $makefile} "${flagsArray[@]}" unset flagsArray fi runHook postBuild } checkPhase() { runHook preCheck if [[ -z "${foundMakefile:-}" ]]; then echo "no Makefile or custom buildPhase, doing nothing" runHook postCheck return fi if [[ -z "${checkTarget:-}" ]]; then #TODO(@oxij): should flagsArray influence make -n? if make -n ${makefile:+-f $makefile} check >/dev/null 2>&1; then checkTarget=check elif make -n ${makefile:+-f $makefile} test >/dev/null 2>&1; then checkTarget=test fi fi if [[ -z "${checkTarget:-}" ]]; then echo "no check/test target in ${makefile:-Makefile}, doing nothing" else # Old bash empty array hack # shellcheck disable=SC2086 local flagsArray=( ${enableParallelChecking:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} SHELL=$SHELL $makeFlags ${makeFlagsArray+"${makeFlagsArray[@]}"} ${checkFlags:-VERBOSE=y} ${checkFlagsArray+"${checkFlagsArray[@]}"} ${checkTarget} ) echoCmd 'check flags' "${flagsArray[@]}" make ${makefile:+-f $makefile} "${flagsArray[@]}" unset flagsArray fi runHook postCheck } installPhase() { runHook preInstall if [ -n "$prefix" ]; then mkdir -p "$prefix" fi # Old bash empty array hack # shellcheck disable=SC2086 local flagsArray=( SHELL=$SHELL $makeFlags ${makeFlagsArray+"${makeFlagsArray[@]}"} $installFlags ${installFlagsArray+"${installFlagsArray[@]}"} ${installTargets:-install} ) echoCmd 'install flags' "${flagsArray[@]}" make ${makefile:+-f $makefile} "${flagsArray[@]}" unset flagsArray runHook postInstall } # 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. local output for output in $outputs; do if [ -e "${!output}" ]; then chmod -R u+w "${!output}"; fi done runHook preFixup # Apply fixup to each output. local output for output in $outputs; do prefix="${!output}" runHook fixupOutput done # Propagate dependencies & setup hook into the development output. declare -ra flatVars=( # Build depsBuildBuildPropagated propagatedNativeBuildInputs depsBuildTargetPropagated # Host depsHostHostPropagated propagatedBuildInputs # Target depsTargetTargetPropagated ) declare -ra flatFiles=( "${propagatedBuildDepFiles[@]}" "${propagatedHostDepFiles[@]}" "${propagatedTargetDepFiles[@]}" ) local propagatedInputsIndex for propagatedInputsIndex in "${!flatVars[@]}"; do local propagatedInputsSlice="${flatVars[$propagatedInputsIndex]}[@]" local propagatedInputsFile="${flatFiles[$propagatedInputsIndex]}" [[ "${!propagatedInputsSlice}" ]] || continue mkdir -p "${!outputDev}/nix-support" # shellcheck disable=SC2086 printWords ${!propagatedInputsSlice} > "${!outputDev}/nix-support/$propagatedInputsFile" done if [ -n "${setupHook:-}" ]; then mkdir -p "${!outputDev}/nix-support" substituteAll "$setupHook" "${!outputDev}/nix-support/setup-hook" fi # TODO(@Ericson2314): Remove after https://github.com/NixOS/nixpkgs/pull/31414 if [ -n "${setupHooks:-}" ]; then mkdir -p "${!outputDev}/nix-support" local hook for hook in $setupHooks; do local content consumeEntire content < "$hook" substituteAllStream content "file '$hook'" >> "${!outputDev}/nix-support/setup-hook" unset -v content done unset -v hook 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" fi runHook postFixup } installCheckPhase() { runHook preInstallCheck if [[ -z "${foundMakefile:-}" ]]; then echo "no Makefile or custom buildPhase, doing nothing" #TODO(@oxij): should flagsArray influence make -n? elif [[ -z "${installCheckTarget:-}" ]] \ && ! make -n ${makefile:+-f $makefile} ${installCheckTarget:-installcheck} >/dev/null 2>&1; then echo "no installcheck target in ${makefile:-Makefile}, doing nothing" else # Old bash empty array hack # shellcheck disable=SC2086 local flagsArray=( ${enableParallelChecking:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} SHELL=$SHELL $makeFlags ${makeFlagsArray+"${makeFlagsArray[@]}"} $installCheckFlags ${installCheckFlagsArray+"${installCheckFlagsArray[@]}"} ${installCheckTarget:-installcheck} ) echoCmd 'installcheck flags' "${flagsArray[@]}" make ${makefile:+-f $makefile} "${flagsArray[@]}" unset flagsArray fi runHook postInstallCheck } distPhase() { runHook preDist # Old bash empty array hack # shellcheck disable=SC2086 local flagsArray=( $distFlags ${distFlagsArray+"${distFlagsArray[@]}"} ${distTarget:-dist} ) echo 'dist flags: %q' "${flagsArray[@]}" make ${makefile:+-f $makefile} "${flagsArray[@]}" if [ "${dontCopyDist:-0}" != 1 ]; then mkdir -p "$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 local oldOpts="$(shopt -po nounset)" set +u source "$buildCommandPath" eval "$oldOpts" return fi if [ -n "${buildCommand:-}" ]; then local oldOpts="$(shopt -po nounset)" set +u eval "$buildCommand" eval "$oldOpts" return fi if [ -z "${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 $NIX_LOG_FD ]]; then echo "@nix { \"action\": \"setPhase\", \"phase\": \"$curPhase\" }" >&$NIX_LOG_FD fi showPhaseHeader "$curPhase" dumpVars # Evaluate the variable named $curPhase if it exists, otherwise the # function named $curPhase. local oldOpts="$(shopt -po nounset)" set +u eval "${!curPhase:-$curPhase}" eval "$oldOpts" if [ "$curPhase" = unpackPhase ]; then cd "${sourceRoot:-.}" fi done } # 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 # Disable nounset for nix-shell. set +u