nixpkgs/pkgs/build-support/setup-hooks/wrap-gapps-hook.sh

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# shellcheck shell=bash
gappsWrapperArgs=()
find_gio_modules() {
if [ -d "$1/lib/gio/modules" ] && [ -n "$(ls -A "$1/lib/gio/modules")" ] ; then
gappsWrapperArgs+=(--prefix GIO_EXTRA_MODULES : "$1/lib/gio/modules")
fi
}
addEnvHooks "${targetOffset:?}" find_gio_modules
gappsWrapperArgsHook() {
if [ -n "$GDK_PIXBUF_MODULE_FILE" ]; then
gappsWrapperArgs+=(--set GDK_PIXBUF_MODULE_FILE "$GDK_PIXBUF_MODULE_FILE")
fi
if [ -n "$XDG_ICON_DIRS" ]; then
gappsWrapperArgs+=(--prefix XDG_DATA_DIRS : "$XDG_ICON_DIRS")
fi
if [ -n "$GSETTINGS_SCHEMAS_PATH" ]; then
gappsWrapperArgs+=(--prefix XDG_DATA_DIRS : "$GSETTINGS_SCHEMAS_PATH")
fi
# Check for prefix as well
if [ -d "${prefix:?}/share" ]; then
gappsWrapperArgs+=(--prefix XDG_DATA_DIRS : "$prefix/share")
fi
if [ -d "$prefix/lib/gio/modules" ] && [ -n "$(ls -A "$prefix/lib/gio/modules")" ]; then
gappsWrapperArgs+=(--prefix GIO_EXTRA_MODULES : "$prefix/lib/gio/modules")
fi
for v in ${wrapPrefixVariables:-} GST_PLUGIN_SYSTEM_PATH_1_0 GI_TYPELIB_PATH GRL_PLUGIN_PATH; do
if [ -n "${!v}" ]; then
gappsWrapperArgs+=(--prefix "$v" : "${!v}")
fi
done
}
preFixupPhases+=" gappsWrapperArgsHook"
wrapGApp() {
local program="$1"
shift 1
wrapProgram "$program" "${gappsWrapperArgs[@]}" "$@"
}
2019-09-10 05:11:53 +00:00
# Note: $gappsWrapperArgs still gets defined even if ${dontWrapGApps-} is set.
wrapGAppsHook() {
# guard against running multiple times (e.g. due to propagation)
[ -z "$wrapGAppsHookHasRun" ] || return 0
wrapGAppsHookHasRun=1
if [[ -z "${dontWrapGApps:-}" ]]; then
targetDirsThatExist=()
targetDirsRealPath=()
# wrap binaries
targetDirs=("${prefix}/bin" "${prefix}/libexec")
for targetDir in "${targetDirs[@]}"; do
if [[ -d "${targetDir}" ]]; then
targetDirsThatExist+=("${targetDir}")
targetDirsRealPath+=("$(realpath "${targetDir}")/")
find "${targetDir}" -type f -executable -print0 |
while IFS= read -r -d '' file; do
echo "Wrapping program '${file}'"
wrapGApp "${file}"
done
fi
done
wrap-gapps-hook.sh: only wrap links when required Unless dontWrapGapps is set, the wrap-gapps-hook.sh will currently wrap all executables (and symbolic links to executables) found under the target directories: bin and libexec. As a result, if a symbolic link in a target directory points to an executable in a target directory, both will get wrapped. This causes an extra shell/exec when following the symbolic link, as well as increasing the size of the final executable's environment. To avoid wrapping a link to an already wrapped executable, this commit splits the determination of what gets wrapped into two phases: 1. All binaries under the target directories are wrapped and logged with "Wrapping program ..." 2. All links to executables under the target directories are identified and checked to see if they reference an executable under one of the target directories. If yes, the required wrapping has already been performed on the associated binary (in phase 1), so no wrapping is done and "Not wrapping link: ... (already wrapped)" is logged. If no, the link points at an executable that hasn't been wrapped, so the link is wrapped and "Wrapping link: ..." is logged. As an example, the yelp package has a bin directory that contains an executable "yelp" and a symbolic link "gnome-help" -> "yelp". Prior to this commit, the bin directory would contain these files after wrapping: gnome-help -- wrapper to exec .gnome-help-wrapped .gnome-help-wrapped -- a symbolic link to yelp yelp -- wrapper to exec .yelp-wrapped .yelp-wrapped -- the original yelp binary After this commit, the bin directory will instead contain: gnome-help -- a symbolic link to yelp yelp -- wrapper to exec .yelp-wrapped .yelp-wrapped -- the original yelp binary NOTE: The primary motivation for this commit is to avoid obscuring the fact that two or more paths are simple aliases and expected to behave identically. It also reduces the likelihood of hitting limits related to environment variable size. LIMITATION: The method used above is intended to be conservative and will still wrap symbolic links to other symbolic links when the ultimate target is outside of bin or libexec.
2019-01-28 21:40:31 +00:00
# wrap links to binaries that point outside targetDirs
# Note: links to binaries within targetDirs do not need
# to be wrapped as the binaries have already been wrapped
if [[ ${#targetDirsThatExist[@]} -ne 0 ]]; then
find "${targetDirsThatExist[@]}" -type l -xtype f -executable -print0 |
while IFS= read -r -d '' linkPath; do
linkPathReal=$(realpath "${linkPath}")
for targetPath in "${targetDirsRealPath[@]}"; do
if [[ "$linkPathReal" == "$targetPath"* ]]; then
echo "Not wrapping link: '$linkPath' (already wrapped)"
continue 2
fi
done
echo "Wrapping link: '$linkPath'"
wrapGApp "${linkPath}"
done
fi
wrap-gapps-hook.sh: only wrap links when required Unless dontWrapGapps is set, the wrap-gapps-hook.sh will currently wrap all executables (and symbolic links to executables) found under the target directories: bin and libexec. As a result, if a symbolic link in a target directory points to an executable in a target directory, both will get wrapped. This causes an extra shell/exec when following the symbolic link, as well as increasing the size of the final executable's environment. To avoid wrapping a link to an already wrapped executable, this commit splits the determination of what gets wrapped into two phases: 1. All binaries under the target directories are wrapped and logged with "Wrapping program ..." 2. All links to executables under the target directories are identified and checked to see if they reference an executable under one of the target directories. If yes, the required wrapping has already been performed on the associated binary (in phase 1), so no wrapping is done and "Not wrapping link: ... (already wrapped)" is logged. If no, the link points at an executable that hasn't been wrapped, so the link is wrapped and "Wrapping link: ..." is logged. As an example, the yelp package has a bin directory that contains an executable "yelp" and a symbolic link "gnome-help" -> "yelp". Prior to this commit, the bin directory would contain these files after wrapping: gnome-help -- wrapper to exec .gnome-help-wrapped .gnome-help-wrapped -- a symbolic link to yelp yelp -- wrapper to exec .yelp-wrapped .yelp-wrapped -- the original yelp binary After this commit, the bin directory will instead contain: gnome-help -- a symbolic link to yelp yelp -- wrapper to exec .yelp-wrapped .yelp-wrapped -- the original yelp binary NOTE: The primary motivation for this commit is to avoid obscuring the fact that two or more paths are simple aliases and expected to behave identically. It also reduces the likelihood of hitting limits related to environment variable size. LIMITATION: The method used above is intended to be conservative and will still wrap symbolic links to other symbolic links when the ultimate target is outside of bin or libexec.
2019-01-28 21:40:31 +00:00
fi
}
fixupOutputHooks+=(wrapGAppsHook)