mirror of
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59 lines
2.7 KiB
Python
59 lines
2.7 KiB
Python
#!/usr/bin/env python3
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"""Stage Linux desktop and AppStream metadata using the Cargo package version."""
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import argparse
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import os
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import re
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import tomllib
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import xml.etree.ElementTree as ET
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from datetime import datetime, timezone
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from pathlib import Path
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def stage(project: Path, destination: Path, *, flatpak: bool = False) -> str:
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with (project / "Cargo.toml").open("rb") as stream:
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version = tomllib.load(stream)["package"]["version"]
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if not re.fullmatch(r"\d+\.\d+\.\d+(?:-(?:alpha|beta|rc)\.[1-9]\d*)?", version):
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raise ValueError(f"Unsupported release version: {version}")
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# Reproducible builds can supply an epoch; otherwise use the UTC build date.
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epoch = os.environ.get("SOURCE_DATE_EPOCH")
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release_date = (
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datetime.fromtimestamp(int(epoch), timezone.utc)
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if epoch is not None else datetime.now(timezone.utc)
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).date().isoformat()
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resources = project / "resources"
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desktop = (resources / "com.flectar.mail.desktop").read_text(encoding="utf-8")
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desktop, count = re.subn(
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r"^X-AppImage-Version=.*$", f"X-AppImage-Version={version}", desktop,
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flags=re.MULTILINE,
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)
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if count != 1:
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raise ValueError("Expected one X-AppImage-Version field in the desktop template")
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if flatpak:
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desktop = re.sub(r"^X-AppImage-[^\n]*\n?", "", desktop, flags=re.MULTILINE)
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parser = ET.XMLParser(target=ET.TreeBuilder(insert_comments=True))
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metainfo = ET.parse(resources / "com.flectar.mail.metainfo.xml", parser=parser)
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# The first release describes the build being packaged. Retain older entries.
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release = metainfo.find("./releases/release")
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if release is None:
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raise ValueError("Missing current release in the AppStream template")
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release.set("version", version)
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release.set("date", release_date)
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release.set("type", "development" if "-" in version else "stable")
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release.attrib.pop("timestamp", None)
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desktop_path = destination / "usr/share/applications/com.flectar.mail.desktop"
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metainfo_path = destination / "usr/share/metainfo/com.flectar.mail.metainfo.xml"
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desktop_path.parent.mkdir(parents=True, exist_ok=True)
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metainfo_path.parent.mkdir(parents=True, exist_ok=True)
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desktop_path.write_text(desktop, encoding="utf-8")
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metainfo.write(metainfo_path, encoding="utf-8", xml_declaration=True)
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return version
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("--flatpak", action="store_true", help="omit AppImage-only desktop keys")
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parser.add_argument("destination", type=Path, help="AppDir or Debian package root")
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args = parser.parse_args()
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print(stage(Path(__file__).resolve().parent.parent, args.destination, flatpak=args.flatpak))
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