build: add meson build system

.clang-tidy

@@ -0,0 +1,7 @@
+Checks: 'clang-diagnostic-*,clang-analyser-*,-clang-diagnostic-unused-command-line-argument,google-*,bugprone-*,modernize-*,performance-*,portability-*,readability-*,-bugprone-easily-swappable-*,-readability-magic-numbers,-google-readability-todo'
+WarningsAsErrors: 'clang-diagnostic-*,clang-analyser-*,-clang-diagnostic-unused-command-line-argument,google-*,bugprone-*,modernize-*,performance-*,portability-*,readability-*,-bugprone-easily-swappable-*,-readability-magic-numbers,-google-readability-todo'
+CheckOptions:
+  - key:             readability-function-cognitive-complexity.Threshold
+    value:           '50'
+
+# vim:syntax=yaml

.github/workflows/check.yml

@@ -8,16 +8,19 @@ jobs:
       - name: Install required libraries
         run: >
           sudo apt-get update && sudo apt-get install -y 
-          python3 python3-pip python3-setuptools python3-wheel ninja-build meson 
+          python3 python3-pip python3-setuptools python3-wheel
           cmake make build-essential clang-tidy
           libpam0g-dev libinih-dev libevdev-dev 
           python3-dev libopencv-dev
+
+      - name: Install meson
+        run: sudo python3 -m pip install meson ninja
 
       - uses: actions/checkout@v2
 
       - name: Build
         run: |
-          meson setup build howdy/src/pam
+          meson setup build
           ninja -C build
 
       - name: Check source code

howdy-gtk/bin/howdy-gtk.in

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+env python3 "@script_path@" "$@"

howdy-gtk/meson.build

@@ -0,0 +1,82 @@
+if meson.is_subproject()
+project('howdy-gtk', license: 'MIT', version: 'beta', meson_version: '>= 0.64.0')
+endif
+
+datadir = get_option('prefix') / get_option('datadir') / 'howdy-gtk'
+py_conf = configuration_data(paths_dict)
+py_conf.set('data_dir', datadir)
+
+
+py_paths = configure_file(
+    input: 'src/paths.py.in',
+    output: 'paths.py',
+    configuration: py_conf,
+)
+
+sources = files(
+    'src/authsticky.py',
+    'src/i18n.py',
+    'src/init.py',
+    'src/onboarding.py',
+    'src/paths_factory.py',
+    'src/tab_models.py',
+    'src/tab_video.py',
+    'src/window.py',
+)
+
+py = import('python').find_installation(
+    # modules: ['gi', 'elevate']
+)
+py.dependency()
+
+if get_option('install_in_site_packages')
+    pysourcesinstalldir = join_paths(py.get_install_dir(), 'howdy-gtk')
+else
+    pysourcesinstalldir = get_option('py_sources_dir') != '' ? get_option('py_sources_dir') : join_paths(get_option('prefix'), get_option('libdir'), 'howdy-gtk')
+endif
+
+if get_option('install_in_site_packages')
+    py.install_sources(
+        sources,
+        py_paths,
+        subdir: 'howdy-gtk',
+        install_mode: 'r--r--r--',
+        install_tag: 'py_sources',
+    )
+else
+    install_data(
+        sources,
+        py_paths,
+        install_dir: pysourcesinstalldir,
+        install_mode: 'r--r--r--',
+        install_tag: 'py_sources',
+    )
+endif
+
+logos = files(
+    'src/logo.png',
+    'src/logo_about.png',
+)
+install_data(logos, install_dir: datadir)
+
+interface_files = files(
+    'src/main.glade',
+    'src/onboarding.glade',
+)
+install_data(interface_files, install_dir: datadir)
+
+cli_path = join_paths(pysourcesinstalldir, 'init.py')
+conf_data = configuration_data({ 'script_path': cli_path })
+
+bin_name = 'howdy-gtk'
+bin = configure_file(
+    input: 'bin/howdy-gtk.in',
+    output: bin_name,
+    configuration: conf_data
+)
+install_data(
+  bin,
+  install_mode: 'rwxr-xr-x',
+  install_dir: get_option('prefix') / get_option('bindir'),
+  install_tag: 'bin',
+)

howdy-gtk/src/authsticky.py

@@ -3,6 +3,7 @@
 import gi
 import signal
 import sys
+import paths_factory
 import os
 
 from i18n import _
@@ -32,9 +33,7 @@ def __init__(self):
 		gtk.Window.__init__(self)
 
 		# Get the absolute or relative path to the logo file
-		logo_path = "/usr/lib/howdy-gtk/logo.png"
-		if not os.access(logo_path, os.R_OK):
-			logo_path = "./logo.png"
+		logo_path = paths_factory.logo_path()
 
 		# Create image and calculate scale size based on image size
 		self.logo_surface = cairo.ImageSurface.create_from_png(logo_path)

howdy-gtk/src/onboarding.py

@@ -3,6 +3,7 @@
 import re
 import time
 import subprocess
+import paths_factory
 
 from i18n import _
 
@@ -22,7 +23,7 @@ def __init__(self):
 		self.connect("delete_event", self.exit)
 
 		self.builder = gtk.Builder()
-		self.builder.add_from_file("./onboarding.glade")
+		self.builder.add_from_file(paths_factory.onboarding_wireframe_path())
 		self.builder.connect_signals(self)
 
 		self.window = self.builder.get_object("onboardingwindow")
@@ -67,29 +68,17 @@ def go_next_slide(self, button=None):
 			self.execute_slide6()
 
 	def execute_slide1(self):
-		conf_path = "/etc/howdy"
-
 		self.downloadoutputlabel = self.builder.get_object("downloadoutputlabel")
 		eventbox = self.builder.get_object("downloadeventbox")
 		eventbox.modify_bg(gtk.StateType.NORMAL, gdk.Color(red=0, green=0, blue=0))
 
-		for lib_site in ("/lib", "/usr/lib", "/lib64", "/usr/lib64"):
-			if os.path.exists(lib_site + "/security/howdy/"):
-				break
-			else:
-				lib_site = None
-
-		if lib_site is None:
-			self.downloadoutputlabel.set_text(_("Unable to find Howdy's installation location"))
-			return
-
-
-		if os.path.exists(conf_path + "/dlib-data/shape_predictor_5_face_landmarks.dat"):
+		# TODO: Better way to do this?
+		if os.path.exists(paths_factory.dlib_data_dir_path() / "shape_predictor_5_face_landmarks.dat"):
 			self.downloadoutputlabel.set_text(_("Datafiles have already been downloaded!\nClick Next to continue"))
 			self.enable_next()
 			return
 
-		self.proc = subprocess.Popen("./install.sh", stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True, cwd=conf_path + "/howdy/dlib-data")
+		self.proc = subprocess.Popen("./install.sh", stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True, cwd=paths_factory.dlib_data_dir_path())
 
 		self.download_lines = []
 		self.read_download_line()

howdy-gtk/src/paths.py.in

@@ -0,0 +1,13 @@
+from pathlib import PurePath
+
+# Define the absolute path to the config directory
+config_dir = PurePath("@config_dir@")
+
+# Define the absolute path to the DLib models data directory
+dlib_data_dir = PurePath("@dlib_data_dir@")
+
+# Define the absolute path to the Howdy user models directory
+user_models_dir = PurePath("@user_models_dir@")
+
+# Define the absolute path to the Howdy data directory
+data_dir = PurePath("@data_dir@")

howdy-gtk/src/paths_factory.py

@@ -0,0 +1,32 @@
+from pathlib import PurePath
+import paths
+
+
+def config_file_path() -> str:
+    """Return the path to the config file"""
+    return str(paths.config_dir / "config.ini")
+
+
+def user_models_dir_path() -> PurePath:
+    """Return the path to the user models directory"""
+    return paths.user_models_dir
+
+
+def logo_path() -> str:
+    """Return the path to the logo file"""
+    return str(paths.data_dir / "logo.png")
+
+
+def onboarding_wireframe_path() -> str:
+    """Return the path to the onboarding wireframe file"""
+    return str(paths.data_dir / "onboarding.glade")
+
+
+def main_window_wireframe_path() -> str:
+    """Return the path to the main window wireframe file"""
+    return str(paths.data_dir / "main.glade")
+
+
+def dlib_data_dir_path() -> PurePath:
+    """Return the path to the dlib data directory"""
+    return paths.dlib_data_dir

howdy-gtk/src/tab_video.py

@@ -1,6 +1,7 @@
 import configparser
 
 from i18n import _
+import paths_factory
 
 from gi.repository import Gtk as gtk
 from gi.repository import Gdk as gdk
@@ -17,7 +18,7 @@ def on_page_switch(self, notebook, page, page_num):
 
 		try:
 			self.config = configparser.ConfigParser()
-			self.config.read("/etc/howdy/config.ini")
+			self.config.read(paths_factory.config_file_path())
 		except Exception:
 			print(_("Can't open camera"))
 

howdy-gtk/src/window.py

@@ -7,6 +7,7 @@
 import subprocess
 
 from i18n import _
+import paths_factory
 
 # Make sure we have the libs we need
 gi.require_version("Gtk", "3.0")
@@ -26,7 +27,7 @@ def __init__(self):
 		self.connect("delete_event", self.exit)
 
 		self.builder = gtk.Builder()
-		self.builder.add_from_file("./main.glade")
+		self.builder.add_from_file(paths_factory.main_window_wireframe_path())
 		self.builder.connect_signals(self)
 
 		self.window = self.builder.get_object("mainwindow")
@@ -49,7 +50,7 @@ def __init__(self):
 		# Add the treeview
 		self.modellistbox.add(self.treeview)
 
-		filelist = os.listdir("/etc/howdy/models")
+		filelist = os.listdir(paths_factory.user_models_dir_path())
 		self.active_user = ""
 
 		self.userlist.items = 0
@@ -120,7 +121,7 @@ def exit(self, widget, context):
 elevate.elevate()
 
 # If no models have been created yet or when it is forced, start the onboarding
-if "--force-onboarding" in sys.argv or not os.path.exists("/etc/howdy/models"):
+if "--force-onboarding" in sys.argv or not os.path.exists(paths_factory.user_models_dir_path()):
 	import onboarding
 	onboarding.OnboardingWindow()
 

howdy/debian/howdy.manpages

@@ -1 +1 @@
-debian/howdy.1
+howdy.1

howdy/meson.build

@@ -0,0 +1 @@
+subdir('src')

howdy/src/autocomplete/howdy → howdy/src/autocomplete/howdy.in

@@ -4,6 +4,8 @@
 
 _howdy() {
 	local cur prev opts
+	local config_path="@config_path@"
+	source _variables
 	COMPREPLY=()
 	# The argument typed so far
 	cur="${COMP_WORDS[COMP_CWORD]}"
@@ -20,7 +22,7 @@ _howdy() {
 			;;
 		# For disable, grab the current "disabled" config option and give the reverse
 		"disable")
-			local status=$(cut -d'=' -f2 <<< $(cat /etc/howdy/config.ini | grep 'disabled =') | xargs echo -n)
+			local status=$(cut -d'=' -f2 <<< $(cat $config_path | grep 'disabled =') | xargs echo -n)
 
 			[ "$status" == "false" ] && COMPREPLY="true" || COMPREPLY="false"
 			return 0

howdy/src/bin/howdy.in

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+env python3 "@script_path@" "$@"

howdy/src/cli/add.py

@@ -8,6 +8,7 @@
 import configparser
 import builtins
 import numpy as np
+import paths_factory
 
 from recorders.video_capture import VideoCapture
 from i18n import _
@@ -26,39 +27,36 @@
 # OpenCV needs to be imported after dlib
 import cv2
 
-# Define the absolute path to the config directory
-config_path = "/etc/howdy"
-
 # Test if at lest 1 of the data files is there and abort if it's not
-if not os.path.isfile(config_path + "/dlib-data/shape_predictor_5_face_landmarks.dat"):
+if not os.path.isfile(paths_factory.shape_predictor_5_face_landmarks_path()):
 	print(_("Data files have not been downloaded, please run the following commands:"))
-	print("\n\tcd " + config_path + "/dlib-data")
+	print("\n\tcd " + paths_factory.dlib_data_dir_path())
 	print("\tsudo ./install.sh\n")
 	sys.exit(1)
 
 # Read config from disk
 config = configparser.ConfigParser()
-config.read(config_path + "/config.ini")
+config.read(paths_factory.config_file_path())
 
 use_cnn = config.getboolean("core", "use_cnn", fallback=False)
 if use_cnn:
-	face_detector = dlib.cnn_face_detection_model_v1(config_path + "/dlib-data/mmod_human_face_detector.dat")
+	face_detector = dlib.cnn_face_detection_model_v1(paths_factory.mmod_human_face_detector_path())
 else:
 	face_detector = dlib.get_frontal_face_detector()
 
-pose_predictor = dlib.shape_predictor(config_path + "/dlib-data/shape_predictor_5_face_landmarks.dat")
-face_encoder = dlib.face_recognition_model_v1(config_path + "/dlib-data/dlib_face_recognition_resnet_model_v1.dat")
+pose_predictor = dlib.shape_predictor(paths_factory.shape_predictor_5_face_landmarks_path())
+face_encoder = dlib.face_recognition_model_v1(paths_factory.dlib_face_recognition_resnet_model_v1_path())
 
 user = builtins.howdy_user
 # The permanent file to store the encoded model in
-enc_file = config_path + "/models/" + user + ".dat"
+enc_file = paths_factory.user_model_path(user)
 # Known encodings
 encodings = []
 
 # Make the ./models folder if it doesn't already exist
-if not os.path.exists(config_path + "/models"):
+if not os.path.exists(paths_factory.user_models_dir_path()):
 	print(_("No face model folder found, creating one"))
-	os.makedirs(config_path + "/models")
+	os.makedirs(paths_factory.user_models_dir_path())
 
 # To try read a premade encodings file if it exists
 try: