mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-25 16:33:15 +00:00
Factor out fixup phase stuff into separate setup hooks
This commit is contained in:
Eelco Dolstra
parent
d7a4fa26b0
commit
daa66b8b1c
27
pkgs/build-support/setup-hooks/compress-man-pages.sh
Normal file
27
pkgs/build-support/setup-hooks/compress-man-pages.sh
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@ -0,0 +1,27 @@
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addHook fixupOutput 'if [ -z "$dontGzipMan" ]; then compressManPages "$prefix"; fi'
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compressManPages() {
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local dir="$1"
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echo "gzipping man pages in $dir"
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GLOBIGNORE=.:..:*.gz:*.bz2
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for f in "$dir"/share/man/*/* "$dir"/share/man/*/*/*; do
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if [ -f "$f" -a ! -L "$f" ]; then
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if gzip -c -n "$f" > "$f".gz; then
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rm "$f"
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else
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rm "$f".gz
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fi
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fi
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done
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for f in "$dir"/share/man/*/* "$dir"/share/man/*/*/*; do
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if [ -L "$f" -a -f `readlink -f "$f"`.gz ]; then
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ln -sf `readlink "$f"`.gz "$f".gz && rm "$f"
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fi
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done
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unset GLOBIGNORE
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}
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62
pkgs/build-support/setup-hooks/patch-shebangs.sh
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62
pkgs/build-support/setup-hooks/patch-shebangs.sh
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@ -0,0 +1,62 @@
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# This setup hook causes the fixup phase to rewrite all script
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# interpreter file names (`#! /path') to paths found in $PATH. E.g.,
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# /bin/sh will be rewritten to /nix/store/<hash>-some-bash/bin/sh.
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# /usr/bin/env gets special treatment so that ".../bin/env python" is
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# rewritten to /nix/store/<hash>/bin/python. Interpreters that are
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# already in the store are left untouched.
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addHook fixupOutput 'if [ -z "$dontPatchShebangs" ]; then patchShebangs "$prefix"; fi'
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patchShebangs() {
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local dir="$1"
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header "patching script interpreter paths in $dir"
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local f
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local oldPath
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local newPath
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local arg0
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local args
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local oldInterpreterLine
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local newInterpreterLine
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find "$dir" -type f -perm +0100 | while read f; do
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if [ "$(head -1 "$f" | head -c +2)" != '#!' ]; then
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# missing shebang => not a script
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continue
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fi
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oldInterpreterLine=$(head -1 "$f" | tail -c +3)
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read -r oldPath arg0 args <<< "$oldInterpreterLine"
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if $(echo "$oldPath" | grep -q "/bin/env$"); then
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# Check for unsupported 'env' functionality:
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# - options: something starting with a '-'
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# - environment variables: foo=bar
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if $(echo "$arg0" | grep -q -- "^-.*\|.*=.*"); then
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echo "unsupported interpreter directive \"$oldInterpreterLine\" (set dontPatchShebangs=1 and handle shebang patching yourself)"
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exit 1
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fi
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newPath="$(command -v "$arg0" || true)"
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else
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if [ "$oldPath" = "" ]; then
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# If no interpreter is specified linux will use /bin/sh. Set
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# oldpath="/bin/sh" so that we get /nix/store/.../sh.
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oldPath="/bin/sh"
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fi
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newPath="$(command -v "$(basename "$oldPath")" || true)"
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args="$arg0 $args"
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fi
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newInterpreterLine="$newPath $args"
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if [ -n "$oldPath" -a "${oldPath:0:${#NIX_STORE}}" != "$NIX_STORE" ]; then
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if [ -n "$newPath" -a "$newPath" != "$oldPath" ]; then
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echo "$f: interpreter directive changed from \"$oldInterpreterLine\" to \"$newInterpreterLine\""
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# escape the escape chars so that sed doesn't interpret them
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escapedInterpreterLine=$(echo "$newInterpreterLine" | sed 's|\\|\\\\|g')
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sed -i -e "1 s|.*|#\!$escapedInterpreterLine|" "$f"
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fi
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fi
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done
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stopNest
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}
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36
pkgs/build-support/setup-hooks/strip.sh
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36
pkgs/build-support/setup-hooks/strip.sh
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@ -0,0 +1,36 @@
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# This setup hook strips libraries and executables in the fixup phase.
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addHook fixupOutput _doStrip
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_doStrip() {
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if [ -z "$dontStrip" ]; then
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stripDebugList=${stripDebugList:-lib lib32 lib64 libexec bin sbin}
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if [ -n "$stripDebugList" ]; then
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stripDirs "$stripDebugList" "${stripDebugFlags:--S}"
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fi
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stripAllList=${stripAllList:-}
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if [ -n "$stripAllList" ]; then
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stripDirs "$stripAllList" "${stripAllFlags:--s}"
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fi
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fi
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}
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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 ${dirs}; do
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if [ -d "$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=${dirsNew}
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if [ -n "${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 $commonStripFlags $stripFlags || true
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stopNest
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fi
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}
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@ -31,6 +31,12 @@ let
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unsafeGetAttrPos = builtins.unsafeGetAttrPos or (n: as: null);
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extraBuildInputs' = extraBuildInputs ++
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[ ../../build-support/setup-hooks/compress-man-pages.sh
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../../build-support/setup-hooks/strip.sh
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../../build-support/setup-hooks/patch-shebangs.sh
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];
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# The stdenv that we are producing.
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result =
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@ -106,10 +112,10 @@ let
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__ignoreNulls = true;
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# Inputs built by the cross compiler.
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buildInputs = lib.optionals (crossConfig != null) (buildInputs ++ extraBuildInputs);
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buildInputs = lib.optionals (crossConfig != null) (buildInputs ++ extraBuildInputs');
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propagatedBuildInputs = lib.optionals (crossConfig != null) propagatedBuildInputs;
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# Inputs built by the usual native compiler.
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nativeBuildInputs = nativeBuildInputs ++ lib.optionals (crossConfig == null) (buildInputs ++ extraBuildInputs);
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nativeBuildInputs = nativeBuildInputs ++ lib.optionals (crossConfig == null) (buildInputs ++ extraBuildInputs');
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propagatedNativeBuildInputs = propagatedNativeBuildInputs ++
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lib.optionals (crossConfig == null) propagatedBuildInputs;
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}))) (
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@ -325,25 +325,6 @@ export NIX_BUILD_CORES
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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 ${dirs}; do
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if [ -d "$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=${dirsNew}
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if [ -n "${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 $commonStripFlags $stripFlags || true
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stopNest
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fi
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}
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# PaX-mark binaries
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paxmark() {
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local flags="$1"
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@ -357,6 +338,7 @@ paxmark() {
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paxctl -zex -${flags} "$@"
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}
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######################################################################
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# Textual substitution functions.
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@ -702,67 +684,6 @@ checkPhase() {
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}
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patchShebangs() {
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# Rewrite all script interpreter file names (`#! /path') under the
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# specified directory tree to paths found in $PATH. E.g.,
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# /bin/sh will be rewritten to /nix/store/<hash>-some-bash/bin/sh.
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# /usr/bin/env gets special treatment so that ".../bin/env python" is
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# rewritten to /nix/store/<hash>/bin/python.
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# Interpreters that are already in the store are left untouched.
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header "patching script interpreter paths"
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local dir="$1"
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local f
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local oldPath
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local newPath
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local arg0
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local args
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local oldInterpreterLine
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local newInterpreterLine
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find "$dir" -type f -perm +0100 | while read f; do
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if [ "$(head -1 "$f" | head -c +2)" != '#!' ]; then
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# missing shebang => not a script
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continue
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fi
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oldInterpreterLine=$(head -1 "$f" | tail -c +3)
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read -r oldPath arg0 args <<< "$oldInterpreterLine"
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if $(echo "$oldPath" | grep -q "/bin/env$"); then
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# Check for unsupported 'env' functionality:
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# - options: something starting with a '-'
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# - environment variables: foo=bar
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if $(echo "$arg0" | grep -q -- "^-.*\|.*=.*"); then
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echo "unsupported interpreter directive \"$oldInterpreterLine\" (set dontPatchShebangs=1 and handle shebang patching yourself)"
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exit 1
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fi
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newPath="$(command -v "$arg0" || true)"
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else
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if [ "$oldPath" = "" ]; then
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# If no interpreter is specified linux will use /bin/sh. Set
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# oldpath="/bin/sh" so that we get /nix/store/.../sh.
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oldPath="/bin/sh"
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fi
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newPath="$(command -v "$(basename "$oldPath")" || true)"
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args="$arg0 $args"
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fi
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newInterpreterLine="$newPath $args"
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if [ -n "$oldPath" -a "${oldPath:0:${#NIX_STORE}}" != "$NIX_STORE" ]; then
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if [ -n "$newPath" -a "$newPath" != "$oldPath" ]; then
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echo "$f: interpreter directive changed from \"$oldInterpreterLine\" to \"$newInterpreterLine\""
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# escape the escape chars so that sed doesn't interpret them
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escapedInterpreterLine=$(echo "$newInterpreterLine" | sed 's|\\|\\\\|g')
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sed -i -e "1 s|.*|#\!$escapedInterpreterLine|" "$f"
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fi
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fi
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done
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stopNest
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}
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installPhase() {
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runHook preInstall
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@ -838,47 +759,6 @@ fixupPhase() {
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}
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addHook fixupOutput _defaultFixupOutput
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_defaultFixupOutput() {
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if [ -z "$dontGzipMan" ]; then
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echo "gzipping man pages"
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GLOBIGNORE=.:..:*.gz:*.bz2
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for f in "$prefix"/share/man/*/* "$prefix"/share/man/*/*/*; do
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if [ -f "$f" -a ! -L "$f" ]; then
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if gzip -c -n "$f" > "$f".gz; then
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rm "$f"
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else
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rm "$f".gz
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fi
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fi
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done
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for f in "$prefix"/share/man/*/* "$prefix"/share/man/*/*/*; do
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if [ -L "$f" -a -f `readlink -f "$f"`.gz ]; then
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ln -sf `readlink "$f"`.gz "$f".gz && rm "$f"
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fi
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done
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unset GLOBIGNORE
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fi
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# TODO: strip _only_ ELF executables, and return || fail here...
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if [ -z "$dontStrip" ]; then
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stripDebugList=${stripDebugList:-lib lib32 lib64 libexec bin sbin}
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if [ -n "$stripDebugList" ]; then
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stripDirs "$stripDebugList" "${stripDebugFlags:--S}"
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fi
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stripAllList=${stripAllList:-}
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if [ -n "$stripAllList" ]; then
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stripDirs "$stripAllList" "${stripAllFlags:--s}"
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fi
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fi
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if [ -z "$dontPatchShebangs" ]; then
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patchShebangs "$prefix"
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fi
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}
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installCheckPhase() {
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runHook preInstallCheck
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