1 files changed, 93 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/build-support/setup-hooks/wrap-gapps-hook/wrap-gapps-hook.sh b/nixpkgs/pkgs/build-support/setup-hooks/wrap-gapps-hook/wrap-gapps-hook.sh
new file mode 100644
index 000000000000..1a46e075dbe7
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/setup-hooks/wrap-gapps-hook/wrap-gapps-hook.sh
@@ -0,0 +1,93 @@
+# 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" "${gappsWrapperArgs[@]}" "$@"
+}
+
+# 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 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
+    fi
+}
+
+fixupOutputHooks+=(wrapGAppsHook)