Package resources + a metadata file into a single .zip file.

1 files changed, 56 insertions, 0 deletions

diff --git a/src/resources/generate-img.py b/src/resources/generate-img.py
new file mode 100755
index 00000000..cdbfc030
--- /dev/null
+++ b/src/resources/generate-img.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+import io
+import sys
+import json
+import shutil
+import typing
+import os.path
+import argparse
+import subprocess
+
+def gen_lvconv_line(lv_img_conv: str, dest: str, color_format: str, output_format: str, binary_format: str, sources: str):
+    args = [lv_img_conv, sources, '--force', '--output-file', dest, '--color-format', color_format, '--output-format', output_format, '--binary-format', binary_format]
+
+    return args
+
+def main():
+    ap = argparse.ArgumentParser(description='auto generate LVGL font files from fonts')
+    ap.add_argument('config', type=str, help='config file to use')
+    ap.add_argument('-i', '--image', type=str, action='append', help='Choose specific images to generate (default: all)', default=[])
+    ap.add_argument('--lv-img-conv', type=str, help='Path to "lv_img_conf" executable', default="lv_img_conv")
+    args = ap.parse_args()
+
+    if not shutil.which(args.lv_img_conv):
+        sys.exit(f"Missing lv_img_conv. Make sure it's findable (in PATH) or specify it manually")
+    if not os.path.exists(args.config):
+        sys.exit(f'Error: the config file {args.config} does not exist.')
+    if not os.access(args.config, os.R_OK):
+        sys.exit(f'Error: the config file {args.config} is not accessible (permissions?).')
+    with open(args.config, 'r') as fd:
+        data = json.load(fd)
+
+    images_to_run = set(data.keys())
+
+    if args.image:
+        enabled_images = set()
+        for image in args.image:
+            enabled_images.add(image[:-2] if image.endswith('.c') else image)
+        d = enabled_images.difference(images_to_run)
+        if d:
+            print(f'Warning: requested image{"s" if len(d)>1 else ""} missing: {" ".join(d)}')
+        images_to_run = images_to_run.intersection(enabled_images)
+
+    for name in images_to_run:
+        image = data[name]
+        if not os.path.exists(image['sources']):
+            image['sources'] = os.path.join(os.path.dirname(sys.argv[0]), image['sources'])
+        extension = 'bin'
+        image.pop('target_path')
+        line = gen_lvconv_line(args.lv_img_conv, f'{name}.{extension}', **image)
+        subprocess.check_call(line)
+
+
+
+if __name__ == '__main__':
+    main()