temp/feedbackd: device-specific feedbackd themes

Reads the compatible list from the kernel DTS file and tries to find
a suitable device specific configuration for providing haptic (and
later other) feedback on events

temp/feedbackd/0001-fbd-feedback-manager-Allow-device-specific-feedbackd.patch

+From 36fbaced41d8a99151b4f5f199a849ff60606d9c Mon Sep 17 00:00:00 2001
+From: Dylan Van Assche <me@dylanvanassche.be>
+Date: Thu, 24 Dec 2020 16:23:44 +0100
+Subject: [PATCH] fbd-feedback-manager: Allow device-specific feedbackd themes
+
+---
+ build-aux/post_install.py  | 14 ++++++++
+ data/meson.build           |  2 +-
+ meson.build                |  5 +++
+ src/fbd-feedback-manager.c | 66 ++++++++++++++++++++++++++++++++++++--
+ 4 files changed, 84 insertions(+), 3 deletions(-)
+ create mode 100644 build-aux/post_install.py
+
+diff --git a/build-aux/post_install.py b/build-aux/post_install.py
+new file mode 100644
+index 0000000..bf5128c
+--- /dev/null
++++ b/build-aux/post_install.py
+@@ -0,0 +1,14 @@
++#!/usr/bin/python3
++
++import os
++import subprocess
++import sys
++
++destdir = os.environ.get('DESTDIR', '')
++
++if not destdir and len(sys.argv) > 1:
++    datadir = sys.argv[1]
++
++    print('Compiling gsettings schemas...')
++    subprocess.call(['glib-compile-schemas', os.path.join(datadir, 'glib-2.0', 'schemas')])
++
+diff --git a/data/meson.build b/data/meson.build
+index d90230e..1f4e809 100644
+--- a/data/meson.build
++++ b/data/meson.build
+@@ -53,7 +53,7 @@ install_data(
+ if json_glib_validate.found()
+   jsons = []
+   foreach theme : theme_json
+-    jsons += (join_paths(meson.current_source_dir(), theme_json))
++    jsons += (join_paths(meson.current_source_dir(), theme))
+   endforeach
+   custom_target('validate-json',
+ 		build_by_default: true,
+diff --git a/meson.build b/meson.build
+index 634eefe..54dac50 100644
+--- a/meson.build
++++ b/meson.build
+@@ -98,6 +98,11 @@ libname = 'libfeedback-' + apiversion
+ 
+ json_glib_validate = find_program('json-glib-validate', required: false)
+ 
++meson.add_install_script(
++  join_paths('build-aux', 'post_install.py'),
++  datadir
++)
++
+ subdir('data')
+ subdir('libfeedback')
+ subdir('src')
+diff --git a/src/fbd-feedback-manager.c b/src/fbd-feedback-manager.c
+index ef508c7..a75a226 100644
+--- a/src/fbd-feedback-manager.c
++++ b/src/fbd-feedback-manager.c
+@@ -18,13 +18,18 @@
+ #include <gio/gio.h>
+ #include <glib-unix.h>
+ #include <gudev/gudev.h>
++#include <stdio.h>
+ 
+ #define FEEDBACKD_SCHEMA_ID "org.sigxcpu.feedbackd"
+ #define FEEDBACKD_KEY_PROFILE "profile"
++#define FEEDBACKD_THEME_VAR "FEEDBACK_THEME"
+ 
+ #define APP_SCHEMA FEEDBACKD_SCHEMA_ID ".application"
+ #define APP_PREFIX "/org/sigxcpu/feedbackd/application/"
+ 
++#define DEVICE_TREE_PATH "/sys/firmware/devicetree/base/compatible"
++#define DEVICE_NAME_MAX 1024
++
+ 
+ /**
+  * SECTION:fbd-feedback-manager
+@@ -352,6 +357,55 @@ fbd_feedback_manager_handle_end_feedback (LfbGdbusFeedback *object,
+   return TRUE;
+ }
+ 
++static gchar *
++find_themefile () {
++  gint i = 0;
++  gsize len;
++  const gchar *comp;
++  g_autoptr(GError) err = NULL;
++  gchar **xdg_data_dirs = (gchar **) g_get_system_data_dirs();
++  gchar *config_path = NULL;
++  gchar *compatibles = NULL;
++
++  // Try to read the device name
++  if (g_file_test(DEVICE_TREE_PATH, (G_FILE_TEST_EXISTS))) {
++    g_debug("Found device tree device compatible at %s", DEVICE_TREE_PATH);
++
++    // Check if feedbackd has a proper config available this device
++    if(!g_file_get_contents(DEVICE_TREE_PATH, &compatibles, &len, &err))
++      g_warning ("Unable to read: %s", err->message);
++
++    comp = compatibles;
++    while(comp - compatibles < len) {
++
++      // Iterate over $XDG_DATA_DIRS
++      for (i = 0; i < g_strv_length(xdg_data_dirs); i++) {
++        config_path = g_strconcat(xdg_data_dirs[i], "feedbackd/themes/", comp, ".json", NULL);
++        g_debug("Searching for device specific themefile in %s", config_path);
++
++        // Check if file exist
++        if (g_file_test(config_path, (G_FILE_TEST_EXISTS))) {
++          g_debug("Found themefile for this device at: %s", config_path);
++	  return g_strdup(config_path);
++        }
++      }
++
++      // Next compatible
++      comp = strchr(comp, 0);
++      comp++;
++    }
++  }
++  else {
++    g_debug("Device tree path does not exist: %s", DEVICE_TREE_PATH);
++  }
++
++  // No path found, free all
++  g_free(compatibles);
++  g_free(config_path);
++
++  return NULL;
++}
++
+ static void
+ fbd_feedback_manager_constructed (GObject *object)
+ {
+@@ -361,14 +415,22 @@ fbd_feedback_manager_constructed (GObject *object)
+ 
+   G_OBJECT_CLASS (fbd_feedback_manager_parent_class)->constructed (object);
+ 
+-  themefile = g_getenv ("FEEDBACK_THEME");
++  // Search for device-specific configuration
++  themefile = find_themefile ();
++
++  // Overide themefile with environment variable if requested
++  if (!themefile)
++    themefile = g_getenv(FEEDBACKD_THEME_VAR);
++
++  // Fallback to default configuration if needed
+   if (!themefile)
+     themefile = FEEDBACKD_THEME_DIR "/default.json";
++  g_info("Using themefile: %s", themefile);
+ 
+   self->theme = fbd_feedback_theme_new_from_file (themefile, &err);
+   if (!self->theme) {
+     /* No point to carry on */
+-    g_error ("Failed to load default theme: %s", err->message);
++    g_error ("Failed to load theme: %s", err->message);
+   }
+ 
+   g_signal_connect (self, "notify::profile", (GCallback)on_profile_changed, NULL);
+-- 
+2.26.2
+

temp/feedbackd/APKBUILD

+# Forked from Alpine to provide a newer version
+
+pkgname=feedbackd
+pkgver=0_git20200726
+pkgrel=0
+pkgdesc="A daemon to provide haptic (and later more) feedback on events"
+url="https://source.puri.sm/Librem5/feedbackd"
+arch="all"
+license="GPL-3.0-or-later"
+depends="dbus"
+makedepends="meson glib-dev gsound-dev libgudev-dev json-glib-dev gtk-doc
+	vala gobject-introspection-dev"
+subpackages="$pkgname-dev"
+source="https://source.puri.sm/Librem5/feedbackd/-/archive/v0.0.0+${pkgver#0_}/feedbackd-v0.0.0+${pkgver#0_}.tar.gz
+	0001-fbd-feedback-manager-Allow-device-specific-feedbackd.patch"
+builddir="$srcdir/$pkgname-v0.0.0+${pkgver#0_}"
+options="!check" # Tests fail in QEMU
+
+build() {
+	abuild-meson \
+		-Dgtk_doc=false \
+		. output
+	meson compile ${JOBS:+-j ${JOBS}} -C output
+}
+
+check() {
+	meson test --no-rebuild -v -C output
+}
+
+package() {
+	DESTDIR="$pkgdir" meson install --no-rebuild -C output
+	install -Dm644 "$builddir"/debian/feedbackd.udev \
+		"$pkgdir"/usr/lib/udev/rules.d/90-feedbackd.rules
+}
+
+sha512sums="2a3e443c5f565dce7cdc25ade73934b5ab29c9efc6ceaa2d404111bfcd67fbc9b02893fc34559c8071aaba218686f2ba8109b2fd92a74e9f16955406ed6af6f6  feedbackd-v0.0.0+git20200726.tar.gz
+65ff25262bd6a718c68f1eba911e8f79fe5a48bdc396c1f712039c2b18829e8f0b7307ebe85aeb378f19eabd0580ebc4321196118cfb3fb7710ea20d700b5054  0001-fbd-feedback-manager-Allow-device-specific-feedbackd.patch"