Update label templates

- New ones are automatically copied across now

InvenTree/label/apps.py

@@ -1,6 +1,7 @@
 import os
 import shutil
 import logging
+import hashlib
 
 from django.apps import AppConfig
 from django.conf import settings
@@ -9,6 +10,20 @@ from django.conf import settings
 logger = logging.getLogger(__name__)
 
 
+def hashFile(filename):
+    """
+    Calculate the MD5 hash of a file
+    """
+
+    md5 = hashlib.md5()
+
+    with open(filename, 'rb') as f:
+        data = f.read()
+        md5.update(data)
+
+    return md5.hexdigest()
+
+
 class LabelConfig(AppConfig):
     name = 'label'
 
@@ -35,6 +50,7 @@ class LabelConfig(AppConfig):
         src_dir = os.path.join(
             os.path.dirname(os.path.realpath(__file__)),
             'templates',
+            'label',
             'stockitem',
         )
 
@@ -70,7 +86,21 @@ class LabelConfig(AppConfig):
             src_file = os.path.join(src_dir, label['file'])
             dst_file = os.path.join(settings.MEDIA_ROOT, filename)
 
-            if not os.path.exists(dst_file):
+            to_copy = False
+
+            if os.path.exists(dst_file):
+                # File already exists - let's see if it is the "same",
+                # or if we need to overwrite it with a newer copy!
+
+                if not hashFile(dst_file) == hashFile(src_file):
+                    logger.info(f"Hash differs for '{filename}'")
+                    to_copy = True
+
+            else:
+                logger.info(f"Label template '{filename}' is not present")
+                to_copy = True
+
+            if to_copy:
                 logger.info(f"Copying label template '{dst_file}'")
                 shutil.copyfile(src_file, dst_file)
 
@@ -106,6 +136,7 @@ class LabelConfig(AppConfig):
         src_dir = os.path.join(
             os.path.dirname(os.path.realpath(__file__)),
             'templates',
+            'label',
             'stocklocation',
         )
 
@@ -146,7 +177,21 @@ class LabelConfig(AppConfig):
             src_file = os.path.join(src_dir, label['file'])
             dst_file = os.path.join(settings.MEDIA_ROOT, filename)
 
-            if not os.path.exists(dst_file):
+            to_copy = False
+
+            if os.path.exists(dst_file):
+                # File already exists - let's see if it is the "same",
+                # or if we need to overwrite it with a newer copy!
+
+                if not hashFile(dst_file) == hashFile(src_file):
+                    logger.info(f"Hash differs for '{filename}'")
+                    to_copy = True
+
+            else:
+                logger.info(f"Label template '{filename}' is not present")
+                to_copy = True
+
+            if to_copy:
                 logger.info(f"Copying label template '{dst_file}'")
                 shutil.copyfile(src_file, dst_file)
 

InvenTree/label/templates/label/stockitem/qr.html

@@ -0,0 +1,20 @@
+{% extends "label/label_base.html" %}
+
+{% load barcode %}
+
+{% block style %}
+
+.qr {
+    position: fixed;
+    left: 0mm;
+    top: 0mm;
+    height: {{ height }}mm;
+    width: {{ height }}mm;
+}
+
+{% endblock %}
+
+{% block content %}
+
+<img class='qr' src='{% qrcode qr_data %}'>
+{% endblock %}

InvenTree/label/templates/label/stocklocation/qr.html

@@ -0,0 +1,20 @@
+{% extends "label/label_base.html" %}
+
+{% load barcode %}
+
+{% block style %}
+
+.qr {
+    position: fixed;
+    left: 0mm;
+    top: 0mm;
+    height: {{ height }}mm;
+    width: {{ height }}mm;
+}
+
+{% endblock %}
+
+{% block content %}
+
+<img class='qr' src='{% qrcode qr_data %}'>
+{% endblock %}

InvenTree/label/templates/label/stocklocation/qr_and_text.html

@@ -0,0 +1,33 @@
+{% extends "label/label_base.html" %}
+
+{% load barcode %}
+
+{% block style %}
+
+.qr {
+    position: fixed;
+    left: 0mm;
+    top: 0mm;
+    height: {{ height }}mm;
+    width: {{ height }}mm;
+}
+
+.loc {
+    font-family: Arial, Helvetica, sans-serif;
+    display: inline;
+    position: absolute;
+    left: {{ width }},
+    top: 2mm;
+}
+
+{% endblock %}
+
+{% block content %}
+
+<img class='qr' src='{% qrcode qr_data %}'>
+
+<div class='loc'>
+    {{ location.name }}
+</div>
+
+{% endblock %}

InvenTree/label/templates/stockitem/qr.html

@@ -1,16 +0,0 @@
-<style>
-@page {
-    width: 24mm;
-    height: 24mm;
-    padding: 1mm;
-}
-
-.qr {
-    margin: 2px;
-    width: 22mm;
-    height: 22mm;
-}
-
-</style>
-
-<img class='qr' src="{{ label_tools.qr_code(item.barcode) }}"/>

InvenTree/label/templates/stocklocation/qr.html

@@ -1,16 +0,0 @@
-<style>
-@page {
-    width: 24mm;
-    height: 24mm;
-    padding: 1mm;
-}
-
-.qr {
-    margin: 2px;
-    width: 22mm;
-    height: 22mm;
-}
-
-</style>
-
-<img class='qr' src="{{ label_tools.qr_code(location.barcode) }}"/>

InvenTree/label/templates/stocklocation/qr_and_text.html

@@ -1,43 +0,0 @@
-<style>
-    @page {
-        width: 75mm;
-        height: 24mm;
-        padding: 1mm;
-    }
-    
-    .location {
-        padding: 5px;
-        font-weight: bold;
-        font-family: Arial, Helvetica, sans-serif;
-        height: 100%;
-        vertical-align: middle;
-        float: right;
-        display: inline;
-        font-size: 125%;
-        position: absolute;
-        top: 0mm;
-        left: 23mm;
-        white-space: nowrap;
-        overflow: hidden;
-        text-overflow: ellipsis;
-    }
-    
-    .qr {
-        margin: 2px;
-        width: 22mm;
-        height: 22mm;
-    }
-    
-    </style>
-    
-    <img class='qr' src="{{ label_tools.qr_code(location.barcode) }}"/>
-    
-    <div class='location'>
-        {{ location.name }}
-        <br>
-        <br>
-        <hr>
-        Location ID: {{ location.pk }}
-        </div>
-    </div>
-