1 files changed, 49 insertions, 0 deletions

diff --git a/scripts/render-installer.py b/scripts/render-installer.py
new file mode 100644
index 0000000..1a00551
--- /dev/null
+++ b/scripts/render-installer.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+"""Fill an installer template with one published artifact's details.
+
+Usage: render-installer.py <template> <output> <version> <binary> <sha256> <url>
+
+The Linux template embeds the application icon so the installer works offline.
+"""
+
+from __future__ import annotations
+
+import pathlib
+import sys
+
+
+def main(argv: list[str]) -> int:
+    if len(argv) != 7:
+        print(
+            "usage: render-installer.py <template> <output> <version> "
+            "<binary> <sha256> <url>",
+            file=sys.stderr,
+        )
+        return 2
+
+    template, output, version, binary, sha256, url = argv[1:]
+    root = pathlib.Path(__file__).resolve().parent.parent
+    icon = (root / "gui" / "assets" / "zagan-bet.svg").read_text()
+
+    text = pathlib.Path(template).read_text()
+    replacements = {
+        "__VERSION__": version,
+        "__BINARY__": binary,
+        "__SHA256__": sha256,
+        "__URL__": url,
+        "__ICON__": icon.rstrip("\n"),
+    }
+    for placeholder, value in replacements.items():
+        text = text.replace(placeholder, value)
+
+    destination = pathlib.Path(output)
+    destination.write_text(text)
+    if destination.suffix == ".sh":
+        destination.chmod(0o755)
+
+    print(f"    {destination} ({destination.stat().st_size} bytes)")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main(sys.argv))