Update to python3, latest packages, latest OS!

Dockerfile

@@ -1,5 +1,5 @@
-# Bionic
-FROM ubuntu:18.04
+FROM ubuntu:24.04
+# 24.04 provides python 3.12
 
 ENV DEBIAN_FRONTEND=noninteractive
 
@@ -11,14 +11,15 @@ ENV PYTHON=$VENV/bin/python
 
 RUN mkdir $BASE
 
-RUN apt-get update
-RUN apt-get install -y nginx python-dev libjpeg62 libjpeg-dev libfreetype6 libfreetype6-dev libtiff5 libtiff5-dev libwebp6 libwebp-dev zlib1g-dev run-one
-RUN apt-get install -y curl  \
-    && curl https://bootstrap.pypa.io/pip/2.7/get-pip.py | python  \
-    && pip --version
-RUN pip install -U pip
-RUN python -m pip install -U virtualenv
-RUN virtualenv -p python2.7 $VENV
+RUN apt-get update && apt-get install -y  \
+    nginx \
+    run-one \
+    python3 \
+    python3-venv \
+    python-is-python3  \
+    && rm -rf /var/lib/apt/lists/*
+RUN python -m venv $VENV
+RUN $PIP install --upgrade pip
 
 WORKDIR $CODE
 

Makefile

@@ -70,7 +70,7 @@ run_production:
 	sudo service waznex-process-grid restart
 	sudo service nginx restart
 
-DOCKER_BUILD := docker build --platform linux/amd64 -t waznexserver .
+DOCKER_BUILD := docker build -t waznexserver .
 
 .PHONY: docker_build
 docker_build:
@@ -79,9 +79,13 @@ docker_build:
 .PHONY: docker_dev
 docker_dev:
 	# (re)builds the latest image and runs it
-	docker run --rm --platform linux/amd64 -p 8080:8080 -it $(shell $(DOCKER_BUILD) -q)
+	docker run --rm -p 8080:8080 -it $(shell $(DOCKER_BUILD) -q)
 
 .PHONY: docker_dev_process
 docker_dev_process:
 	# connects to existing docker_dev and runs the processing script
 	docker exec -it $(shell docker ps -q --filter ancestor=waznexserver) waznexserver/process_grid.py
+
+.PHONY: update_deps
+update_deps:
+	uv pip compile requirements.in -o requirements.txt

gridsplitter/slice.py

@@ -218,7 +218,7 @@ def FindRow(dots, tlDotIndex, rowNum):
 
     # Downsize the search space to speed things up and make the search
     # more accurate
-    imageSearch = imageLuminance.resize(searchSize, Image.ANTIALIAS)
+    imageSearch = imageLuminance.resize(searchSize, Image.LANCZOS)
 
     # Find all of the dots in the image
     dots = TransformDots(FindDots(imageSearch), imageSearch, imageOriginal)
@@ -288,8 +288,8 @@ def FindRow(dots, tlDotIndex, rowNum):
                 try:# Generate a row-wide vector
                     rightDot = rightRowDots[row + 1]
                     rowVec = (dots[rightDot][0] - dots[leftDot][0], dots[rightDot][1] - dots[leftDot][1])
-                except:
-                    print("rightRowDots: {}".format(rightRowDots))
+                except Exception:
+                    print(f"rightRowDots: {rightRowDots}")
 
                 for col, topDot in enumerate(topColumnDots[1:-1]):
                     # Generate a column-wide vector
@@ -329,14 +329,14 @@ def FindRow(dots, tlDotIndex, rowNum):
     # Parse parameters
     if(len(sys.argv) <= 1 or sys.argv[1] == "--help"):
         print("Usage: slice.py inputfile [color [outputdir [width height]]]")
-        print
+        print()
         print("inputfile = The input image file")
         print("color     = The dot color to search for: 0 = Red, 1 = Green, 2 = Blue")
         print("outputdir = The directory to output slices to.  Defaults to")
         print("            a directory with the same name as the input file.")
         print("width     = Desired width, in pixels, of output image.")
         print("height    = Desired height, in pixels, of output image.")
-        print
+        print()
         print("Exit status for this  script is the number of slices output.")
         exit(0)
 

requirements.in

@@ -0,0 +1,8 @@
+Flask
+Flask-SQLAlchemy
+gunicorn
+Jinja2
+Pillow
+SQLAlchemy
+timeago
+Werkzeug

requirements.txt

@@ -1,16 +1,40 @@
-certifi==2019.6.16
-chardet==3.0.4
-Click==7.0
-Flask==1.1.1
-Flask-SQLAlchemy==2.4.0
-gunicorn==19.9.0
-idna==2.8
-itsdangerous==1.1.0
-Jinja2==2.10.1
-MarkupSafe==1.1.1
-Pillow==6.1.0
-requests==2.22.0
-SQLAlchemy==1.3.6
-timeago==1.0.15
-urllib3==1.25.3
-Werkzeug==0.15.5
+# This file was autogenerated by uv via the following command:
+#    uv pip compile requirements.in -o requirements.txt
+blinker==1.9.0
+    # via flask
+click==8.1.8
+    # via flask
+flask==3.1.0
+    # via
+    #   -r requirements.in
+    #   flask-sqlalchemy
+flask-sqlalchemy==3.1.1
+    # via -r requirements.in
+gunicorn==23.0.0
+    # via -r requirements.in
+itsdangerous==2.2.0
+    # via flask
+jinja2==3.1.5
+    # via
+    #   -r requirements.in
+    #   flask
+markupsafe==3.0.2
+    # via
+    #   jinja2
+    #   werkzeug
+packaging==24.2
+    # via gunicorn
+pillow==11.1.0
+    # via -r requirements.in
+sqlalchemy==2.0.36
+    # via
+    #   -r requirements.in
+    #   flask-sqlalchemy
+timeago==1.0.16
+    # via -r requirements.in
+typing-extensions==4.12.2
+    # via sqlalchemy
+werkzeug==3.1.3
+    # via
+    #   -r requirements.in
+    #   flask

waznexserver/__init__.py

@@ -1 +0,0 @@
-# -*- coding: utf-8 -*-

waznexserver/config.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 import os
 
 # Configuration
@@ -12,10 +11,10 @@
 IMAGE_FOLDER = os.path.join(DATA_FOLDER, 'images')
 DOWNSIZED_FOLDER = os.path.join(DATA_FOLDER, 'downsized')
 THUMBNAIL_FOLDER = os.path.join(DATA_FOLDER, 'thumbnails')
-ALLOWED_EXTENSIONS = set(['png',  'PNG',
+ALLOWED_EXTENSIONS = {'png',  'PNG',
                           'jpg',  'JPG',
                           'jpeg', 'JPEG',
-                          'gif',  'GIF'])
+                          'gif',  'GIF'}
 FILE_NAME_DT_FORMAT = '%Y-%m-%dT%H%M%S'
 PRETTY_DT_FORMAT = '%m/%d/%Y %I:%M:%S %p'
 ENABLE_GRIDSPLITTER = True

waznexserver/init_data.py

@@ -1,46 +1,55 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 
 import os
-import sys
+import traceback
 
-from waznexserver import db
-import models
 import config
+import models
+from models import db
+from waznexserver import create_app
 
-if __name__ == '__main__':
-    # Create data dirs
+
+def create_data_dirs():
     data_folders = [df for df in dir(config) if df.endswith('_FOLDER')]
     for folder in data_folders:
         newdir = os.path.abspath(getattr(config, folder))
-        print newdir
+        print(newdir)
         if not os.path.exists(newdir):  # If it doesn't exist, try to make it
             try:
                 os.mkdir(newdir)
             except OSError:
-                print "Unable to create data directory: " + newdir
-                print "Error was: %s" % (sys.exc_info()[1],)
+                print("Unable to create data directory: " + newdir)
+                traceback.print_exc()
                 exit(1)
         if not os.path.exists(newdir):  # Make sure it's there now
-            print "Unable to find or create data directory: " + newdir
+            print("Unable to find or create data directory: " + newdir)
             exit(1)
 
-    # Create database
+
+def create_database():
     db.create_all()
+    db.session.commit()
 
     # Find and add all of the ImageStatuses in models.py
     statuses = [s for s in dir(models) if s.startswith('IMAGESTATUS_')]
     for status in statuses:
         id = getattr(models, status)
         s = models.ImageStatus(id, status.split('_',1)[1])
         db.session.add(s)
-    
+
     # Find and add all of the ImageLevels in models.py
     levels = [l for l in dir(models) if l.startswith('IMAGELEVEL_')]
     for level in levels:
         id = getattr(models, level)
         l = models.ImageLevel(id, level.split('_',1)[1])
         db.session.add(l)
-        
+
     db.session.commit()
+
+
+if __name__ == '__main__':
+    create_data_dirs()
+
+    app = create_app()
+    with app.app_context():
+        create_database()

waznexserver/models.py

@@ -1,12 +1,16 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 
 import os
+
+from flask import current_app as app  # is this misleading?
 from flask_sqlalchemy import SQLAlchemy
-from waznexserver import app
-from waznexserver import db
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(DeclarativeBase):
+    pass
 
+db = SQLAlchemy(model_class=Base)
 
 # Image Levels (basic thumbnails, full grid)
 IMAGELEVEL_NOTHING = -1
@@ -22,7 +26,7 @@ def __init__(self, id, desc):
         self.desc = desc
 
     def __repr__(self):
-        return '<id:{} {}>'.format(self.id, self.desc)
+        return f'<id:{self.id} {self.desc}>'
 
 
 # Image Statuses
@@ -40,7 +44,7 @@ def __init__(self, id, desc):
         self.desc = desc
 
     def __repr__(self):
-        return '<id:{} {}>'.format(self.id, self.desc)
+        return f'<id:{self.id} {self.desc}>'
 
 
 class GridItem(db.Model):