804 lines
20 KiB
Bash
804 lines
20 KiB
Bash
# Run the named hook, either by calling the function with that name or
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# by evaluating the variable with that name. This allows convenient
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# setting of hooks both from Nix expressions (as attributes /
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# environment variables) and from shell scripts (as functions).
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runHook() {
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local hookName="$1"
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if test "$(type -t $hookName)" = function; then
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$hookName
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else
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eval "${!hookName}"
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fi
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}
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exitHandler() {
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exitCode=$?
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set +e
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closeNest
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if test -n "$showBuildStats"; then
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times > "$NIX_BUILD_TOP/.times"
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local -a times=($(cat "$NIX_BUILD_TOP/.times"))
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# Print the following statistics:
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# - user time for the shell
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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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fi
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if test $exitCode != 0; then
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runHook failureHook
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# If the builder had a non-zero exit code and
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# $succeedOnFailure is set, create the file
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# `$out/nix-support/failed' to signal failure, and exit
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# normally. Otherwise, return the original exit code.
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if test -n "$succeedOnFailure"; then
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echo "build failed with exit code $exitCode (ignored)"
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ensureDir "$out/nix-support"
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echo -n $exitCode > "$out/nix-support/failed"
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exit 0
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fi
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else
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runHook exitHook
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fi
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exit $exitCode
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}
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trap "exitHandler" EXIT
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######################################################################
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# Helper functions that might be useful in setup hooks.
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addToSearchPathWithCustomDelimiter() {
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local delimiter=$1
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local varName=$2
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local dir=$3
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if [ -d "$dir" ]; then
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eval export ${varName}=${!varName}${!varName:+$delimiter}${dir}
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fi
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}
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PATH_DELIMITER=':'
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addToSearchPath() {
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addToSearchPathWithCustomDelimiter "${PATH_DELIMITER}" "$@"
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}
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######################################################################
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# Initialisation.
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set -e
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# Check that the directory pointed by HOME, usually '/homeless-shelter',
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# does not exist, as it may be a good source for impurities.
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! test -e $HOME
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test -z $NIX_GCC && NIX_GCC=@gcc@
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# Wildcard expansions that don't match should expand to an empty list.
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# This ensures that, for instance, "for i in *; do ...; done" does the
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# right thing.
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shopt -s nullglob
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# Set up the initial path.
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PATH=
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for i in $NIX_GCC @initialPath@; do
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if test "$i" = /; then i=; fi
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addToSearchPath PATH $i/bin
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done
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if test "$NIX_DEBUG" = "1"; then
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echo "initial path: $PATH"
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fi
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# Execute the pre-hook.
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export SHELL=@shell@
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if test -z "$shell"; then
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export shell=@shell@
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fi
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param1=@param1@
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param2=@param2@
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param3=@param3@
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param4=@param4@
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param5=@param5@
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if test -n "@preHook@"; then source @preHook@; fi
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runHook preHook
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# Check that the pre-hook initialised SHELL.
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if test -z "$SHELL"; then echo "SHELL not set"; exit 1; fi
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# Hack: run gcc's setup hook.
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envHooks=()
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if test -f $NIX_GCC/nix-support/setup-hook; then
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source $NIX_GCC/nix-support/setup-hook
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fi
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# Ensure that the given directories exists.
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ensureDir() {
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local dir
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for dir in "$@"; do
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if ! test -x "$dir"; then mkdir -p "$dir"; fi
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done
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}
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installBin() {
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ensureDir $out/bin
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cp "$@" $out/bin
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}
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# Allow the caller to augment buildInputs (it's not always possible to
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# do this before the call to setup.sh, since the PATH is empty at that
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# point; here we have a basic Unix environment).
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runHook addInputsHook
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# Recursively find all build inputs.
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findInputs() {
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local pkg=$1
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local var=$2
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case ${!var} in
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*\ $pkg\ *)
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return 0
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;;
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esac
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$var="${!var} $pkg "
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if test -f $pkg/nix-support/setup-hook; then
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source $pkg/nix-support/setup-hook
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fi
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if test -f $pkg/nix-support/propagated-build-inputs; then
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for i in $(cat $pkg/nix-support/propagated-build-inputs); do
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findInputs $i $var
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done
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fi
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}
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pkgs=""
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for i in $buildInputs $propagatedBuildInputs; do
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findInputs $i pkgs
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done
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pkgsHost=""
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for i in $hostInputs $propagatedHostInputs; do
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findInputs $i pkgsHost
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done
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# Set the relevant environment variables to point to the build inputs
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# found above.
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addToEnv() {
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local pkg=$1
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if test -d $1/bin; then
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addToSearchPath _PATH $1/bin
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fi
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# Run the package-specific hooks set by the setup-hook scripts.
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for i in "${envHooks[@]}"; do
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$i $pkg
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done
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}
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for i in $pkgs; do
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addToEnv $i
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done
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addToEnvHost() {
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local pkg=$1
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# Run the package-specific hooks set by the setup-hook scripts.
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for i in "${envHooksHost[@]}"; do
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$i $pkg
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done
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}
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for i in $pkgsHost; do
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addToEnvHost $i
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done
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# Add the output as an rpath.
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if test "$NIX_NO_SELF_RPATH" != "1"; then
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export NIX_LDFLAGS="-rpath $out/lib $NIX_LDFLAGS"
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if test -n "$NIX_LIB64_IN_SELF_RPATH"; then
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export NIX_LDFLAGS="-rpath $out/lib64 $NIX_LDFLAGS"
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fi
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fi
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# Strip debug information by default.
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if test -z "$NIX_STRIP_DEBUG"; then
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export NIX_STRIP_DEBUG=1
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export NIX_CFLAGS_STRIP="-g0 -Wl,--strip-debug"
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fi
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# Set the TZ (timezone) environment variable, otherwise commands like
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# `date' will complain (e.g., `Tue Mar 9 10:01:47 Local time zone must
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# be set--see zic manual page 2004').
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export TZ=UTC
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# Set the prefix. This is generally $out, but it can be overriden,
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# for instance if we just want to perform a test build/install to a
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# temporary location and write a build report to $out.
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if test -z "$prefix"; then
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prefix="$out";
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fi
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if test "$useTempPrefix" = "1"; then
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prefix="$NIX_BUILD_TOP/tmp_prefix";
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fi
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PATH=$_PATH${_PATH:+:}$PATH
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if test "$NIX_DEBUG" = "1"; then
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echo "final path: $PATH"
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fi
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# Make GNU Make produce nested output.
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export NIX_INDENT_MAKE=1
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######################################################################
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# Misc. helper functions.
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stripDirs() {
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local dirs="$1"
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local stripFlags="$2"
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local dirsNew=
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for d in ${dirs}; do
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if test -d "$prefix/$d"; then
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dirsNew="${dirsNew} $prefix/$d "
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fi
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done
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dirs=${dirsNew}
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if test -n "${dirs}"; then
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header "stripping (with flags $stripFlags) in $dirs"
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find $dirs -type f -print0 | xargs -0 ${xargsFlags:--r} strip $stripFlags || true
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stopNest
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fi
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}
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######################################################################
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# Textual substitution functions.
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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 -a args=()
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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=$((n + 2))
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fi
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if test "$p" = "--subst-var"; then
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varName="${params[$((n + 1))]}"
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pattern="@$varName@"
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replacement="${!varName}"
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n=$((n + 1))
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fi
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if test "$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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fi
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if test ${#args[@]} != 0; then
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args[${#args[@]}]="-a"
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fi
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args[${#args[@]}]="$pattern"
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args[${#args[@]}]="$replacement"
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done
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replace-literal -e -s -- "${args[@]}" < "$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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substituteInPlace() {
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local fileName="$1"
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shift
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substitute "$fileName" "$fileName" "$@"
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}
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substituteAll() {
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local input="$1"
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local output="$2"
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# Select all environment variables that start with a lowercase character.
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for envVar in $(env | sed "s/^[^a-z].*//" | sed "s/^\([^=]*\)=.*/\1/"); do
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if test "$NIX_DEBUG" = "1"; then
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echo "$envVar -> ${!envVar}"
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fi
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args="$args --subst-var $envVar"
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done
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substitute "$input" "$output" $args
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}
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######################################################################
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# What follows is the generic builder.
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nestingLevel=0
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startNest() {
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nestingLevel=$(($nestingLevel + 1))
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echo -en "\e[$1p"
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}
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stopNest() {
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nestingLevel=$(($nestingLevel - 1))
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echo -en "\e[q"
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}
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header() {
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startNest "$2"
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echo "$1"
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}
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# Make sure that even when we exit abnormally, the original nesting
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# level is properly restored.
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closeNest() {
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while test $nestingLevel -gt 0; do
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stopNest
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done
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}
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# This function is useful for debugging broken Nix builds. It dumps
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# all environment variables to a file `env-vars' in the build
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# directory. If the build fails and the `-K' option is used, you can
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# then go to the build directory and source in `env-vars' to reproduce
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# the environment used for building.
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dumpVars() {
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if test "$noDumpEnvVars" != "1"; then
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export > "$NIX_BUILD_TOP/env-vars"
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fi
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}
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# Utility function: return the base name of the given path, with the
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# prefix `HASH-' removed, if present.
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stripHash() {
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strippedName=$(basename $1);
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if echo "$strippedName" | grep -q '^[a-z0-9]\{32\}-'; then
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strippedName=$(echo "$strippedName" | cut -c34-)
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fi
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}
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unpackFile() {
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curSrc="$1"
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local cmd
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header "unpacking source archive $curSrc" 3
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case "$curSrc" in
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*.tar)
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tar xvf $curSrc
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;;
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*.tar.gz | *.tgz | *.tar.Z)
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gzip -d < $curSrc | tar xvf -
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;;
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*.tar.bz2 | *.tbz2)
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bzip2 -d < $curSrc | tar xvf -
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;;
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*.zip)
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unzip $curSrc
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;;
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*)
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if test -d "$curSrc"; then
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stripHash $curSrc
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cp -prvd $curSrc $strippedName
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else
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if test -z "$unpackCmd"; then
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echo "source archive $curSrc has unknown type"
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exit 1
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fi
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runHook unpackCmd
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fi
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;;
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esac
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stopNest
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}
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unpackPhase() {
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runHook preUnpack
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if test -z "$srcs"; then
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if test -z "$src"; then
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echo 'variable $src or $srcs should point to the source'
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exit 1
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fi
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srcs="$src"
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fi
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# To determine the source directory created by unpacking the
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# source archives, we record the contents of the current
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# directory, then look below which directory got added. Yeah,
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# it's rather hacky.
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local dirsBefore=""
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for i in *; do
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if test -d "$i"; then
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dirsBefore="$dirsBefore $i "
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fi
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done
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# Unpack all source archives.
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for i in $srcs; do
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unpackFile $i
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done
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# Find the source directory.
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if test -n "$setSourceRoot"; then
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runHook setSourceRoot
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elif test -z "$sourceRoot"; then
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sourceRoot=
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for i in *; do
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if test -d "$i"; then
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case $dirsBefore in
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*\ $i\ *)
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;;
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*)
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if test -n "$sourceRoot"; then
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echo "unpacker produced multiple directories"
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exit 1
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fi
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sourceRoot="$i"
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;;
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esac
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fi
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done
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fi
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if test -z "$sourceRoot"; then
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echo "unpacker appears to have produced no directories"
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exit 1
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fi
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echo "source root is $sourceRoot"
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# By default, add write permission to the sources. This is often
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# necessary when sources have been copied from other store
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# locations.
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if test "$dontMakeSourcesWritable" != 1; then
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chmod -R u+w "$sourceRoot"
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fi
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runHook postUnpack
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}
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patchPhase() {
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runHook prePatch
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if test -z "$patchPhase" -a -z "$patches"; then return; fi
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for i in $patches; do
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header "applying patch $i" 3
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local uncompress=cat
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case $i in
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*.gz)
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uncompress="gzip -d"
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;;
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*.bz2)
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uncompress="bzip2 -d"
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;;
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esac
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$uncompress < $i | patch ${patchFlags:--p1}
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stopNest
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done
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runHook postPatch
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}
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fixLibtool() {
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sed -i -e 's^eval sys_lib_.*search_path=.*^^' "$1"
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}
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configurePhase() {
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runHook preConfigure
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if test -z "$configureScript"; then
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configureScript=./configure
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if ! test -x $configureScript; then
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echo "no configure script, doing nothing"
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return
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fi
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fi
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if test -z "$dontFixLibtool"; then
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for i in $(find . -name "ltmain.sh"); do
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echo "fixing libtool script $i"
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fixLibtool $i
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done
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fi
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if test -z "$dontAddPrefix"; then
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configureFlags="${prefixKey:---prefix=}$prefix $configureFlags"
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fi
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# Add --disable-dependency-tracking to speed up some builds.
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if test -z "$dontAddDisableDepTrack"; then
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if grep -q dependency-tracking $configureScript; then
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configureFlags="--disable-dependency-tracking $configureFlags"
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fi
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fi
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# By default, disable static builds.
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if test -z "$dontDisableStatic"; then
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if grep -q enable-static $configureScript; then
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configureFlags="--disable-static $configureFlags"
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fi
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fi
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echo "configure flags: $configureFlags ${configureFlagsArray[@]}"
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$configureScript $configureFlags "${configureFlagsArray[@]}"
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runHook postConfigure
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}
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buildPhase() {
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runHook preBuild
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if test -z "$makeFlags" && ! test -n "$makefile" -o -e "Makefile" -o -e "makefile" -o -e "GNUmakefile"; then
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echo "no Makefile, doing nothing"
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return
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fi
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echo "make flags: $makeFlags ${makeFlagsArray[@]} $buildFlags ${buildFlagsArray[@]}"
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make ${makefile:+-f $makefile} \
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$makeFlags "${makeFlagsArray[@]}" \
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$buildFlags "${buildFlagsArray[@]}"
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runHook postBuild
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}
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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 $makefile} \
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$makeFlags "${makeFlagsArray[@]}" \
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$checkFlags "${checkFlagsArray[@]}" ${checkTarget:-check}
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runHook postCheck
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}
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|
patchELF() {
|
|
# Patch all ELF executables and shared libraries.
|
|
header "patching ELF executables and libraries"
|
|
if test -e "$prefix"; then
|
|
find "$prefix" \( \
|
|
\( -type f -a -name "*.so*" \) -o \
|
|
\( -type f -a -perm +0100 \) \
|
|
\) -print -exec patchelf --shrink-rpath {} \;
|
|
fi
|
|
stopNest
|
|
}
|
|
|
|
|
|
patchShebangs() {
|
|
# Rewrite all script interpreter file names (`#! /path') under the
|
|
# specified directory tree to paths found in $PATH. E.g.,
|
|
# /bin/sh will be rewritten to /nix/store/<hash>-some-bash/bin/sh.
|
|
# Interpreters that are already in the store are left untouched.
|
|
header "patching script interpreter paths"
|
|
local dir="$1"
|
|
local f
|
|
for f in $(find "$dir" -type f -perm +0100); do
|
|
local oldPath=$(sed -ne '1 s,^#![ ]*\([^ ]*\).*$,\1,p' "$f")
|
|
if test -n "$oldPath" -a "${oldPath:0:${#NIX_STORE}}" != "$NIX_STORE"; then
|
|
local newPath=$(type -P $(basename $oldPath) || true)
|
|
if test -n "$newPath" -a "$newPath" != "$oldPath"; then
|
|
echo "$f: interpreter changed from $oldPath to $newPath"
|
|
sed -i -e "1 s,$oldPath,$newPath," "$f"
|
|
fi
|
|
fi
|
|
done
|
|
stopNest
|
|
}
|
|
|
|
|
|
installPhase() {
|
|
runHook preInstall
|
|
|
|
ensureDir "$prefix"
|
|
|
|
installTargets=${installTargets:-install}
|
|
echo "install flags: $installTargets $makeFlags ${makeFlagsArray[@]} $installFlags ${installFlagsArray[@]}"
|
|
make ${makefile:+-f $makefile} $installTargets \
|
|
$makeFlags "${makeFlagsArray[@]}" \
|
|
$installFlags "${installFlagsArray[@]}"
|
|
|
|
runHook postInstall
|
|
}
|
|
|
|
|
|
# The fixup phase performs generic, package-independent, Nix-related
|
|
# stuff, like running patchelf and setting the
|
|
# propagated-build-inputs. It should rarely be overriden.
|
|
fixupPhase() {
|
|
runHook preFixup
|
|
|
|
# Put man/doc/info under $out/share.
|
|
forceShare=${forceShare:=man doc info}
|
|
if test -n "$forceShare"; then
|
|
for d in $forceShare; do
|
|
if test -d "$prefix/$d"; then
|
|
if test -d "$prefix/share/$d"; then
|
|
echo "both $d/ and share/$d/ exists!"
|
|
else
|
|
echo "fixing location of $d/ subdirectory"
|
|
ensureDir $prefix/share
|
|
if test -w $prefix/share; then
|
|
mv -v $prefix/$d $prefix/share
|
|
ln -sv share/$d $prefix
|
|
fi
|
|
fi
|
|
fi
|
|
done;
|
|
fi
|
|
|
|
# TODO: strip _only_ ELF executables, and return || fail here...
|
|
if test -z "$dontStrip"; then
|
|
stripDebugList=${stripDebugList:-lib lib64 libexec bin sbin}
|
|
if test -n "$stripDebugList"; then
|
|
stripDirs "$stripDebugList" "${stripDebugFlags:--S}"
|
|
fi
|
|
|
|
stripAllList=${stripAllList:-}
|
|
if test -n "$stripAllList"; then
|
|
stripDirs "$stripAllList" "${stripAllFlags:--s}"
|
|
fi
|
|
fi
|
|
|
|
if test "$havePatchELF" = 1 -a -z "$dontPatchELF"; then
|
|
patchELF "$prefix"
|
|
fi
|
|
|
|
if test -z "$dontPatchShebangs"; then
|
|
patchShebangs "$prefix"
|
|
fi
|
|
|
|
if test -n "$propagatedBuildInputs"; then
|
|
ensureDir "$out/nix-support"
|
|
echo "$propagatedBuildInputs" > "$out/nix-support/propagated-build-inputs"
|
|
fi
|
|
|
|
if test -n "$setupHook"; then
|
|
ensureDir "$out/nix-support"
|
|
substituteAll "$setupHook" "$out/nix-support/setup-hook"
|
|
fi
|
|
|
|
runHook postFixup
|
|
}
|
|
|
|
|
|
distPhase() {
|
|
runHook preDist
|
|
|
|
echo "dist flags: $distFlags ${distFlagsArray[@]}"
|
|
make ${makefile:+-f $makefile} $distFlags "${distFlagsArray[@]}" ${distTarget:-dist}
|
|
|
|
if test "$dontCopyDist" != 1; then
|
|
ensureDir "$out/tarballs"
|
|
|
|
# Note: don't quote $tarballs, since we explicitly permit
|
|
# wildcards in there.
|
|
cp -pvd ${tarballs:-*.tar.gz} $out/tarballs
|
|
fi
|
|
|
|
runHook postDist
|
|
}
|
|
|
|
|
|
showPhaseHeader() {
|
|
local phase="$1"
|
|
case $phase in
|
|
unpackPhase) header "unpacking sources";;
|
|
patchPhase) header "patching sources";;
|
|
configurePhase) header "configuring";;
|
|
buildPhase) header "building";;
|
|
checkPhase) header "running tests";;
|
|
installPhase) header "installing";;
|
|
fixupPhase) header "post-installation fixup";;
|
|
*) header "$phase";;
|
|
esac
|
|
}
|
|
|
|
|
|
genericBuild() {
|
|
header "building $out"
|
|
|
|
if test -n "$buildCommand"; then
|
|
eval "$buildCommand"
|
|
return
|
|
fi
|
|
|
|
if test -z "$phases"; then
|
|
phases="$prePhases unpackPhase patchPhase $preConfigurePhases \
|
|
configurePhase $preBuildPhases buildPhase checkPhase \
|
|
$preInstallPhases installPhase fixupPhase \
|
|
$preDistPhases distPhase $postPhases";
|
|
fi
|
|
|
|
for curPhase in $phases; do
|
|
if test "$curPhase" = buildPhase -a -n "$dontBuild"; then continue; fi
|
|
if test "$curPhase" = checkPhase -a -z "$doCheck"; then continue; fi
|
|
if test "$curPhase" = installPhase -a -n "$dontInstall"; then continue; fi
|
|
if test "$curPhase" = fixupPhase -a -n "$dontFixup"; then continue; fi
|
|
if test "$curPhase" = distPhase -a -z "$doDist"; then continue; fi
|
|
|
|
showPhaseHeader "$curPhase"
|
|
dumpVars
|
|
|
|
# Evaluate the variable named $curPhase if it exists, otherwise the
|
|
# function named $curPhase.
|
|
eval "${!curPhase:-$curPhase}"
|
|
|
|
if test "$curPhase" = unpackPhase; then
|
|
cd "${sourceRoot:-.}"
|
|
fi
|
|
|
|
stopNest
|
|
done
|
|
|
|
stopNest
|
|
}
|
|
|
|
|
|
# Execute the post-hook.
|
|
if test -n "@postHook@"; then source @postHook@; fi
|
|
runHook postHook
|
|
|
|
|
|
dumpVars
|