*/*: GPKG (new binpkg format) Support (GLEP 78, provisionally)

Bug: https://bugs.gentoo.org/500630
Bug: https://bugs.gentoo.org/659864
Bug: https://bugs.gentoo.org/672672
Bug: https://bugs.gentoo.org/773259
Bug: https://bugs.gentoo.org/820578
Signed-off-by: Rin Cat (鈴猫) <dev@rincat.ch>
Closes: https://github.com/gentoo/portage/pull/562
Signed-off-by: Sam James <sam@gentoo.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/bin/gpkg-helper.py b/bin/gpkg-helper.py
new file mode 100755
index 000000000..d79430212
--- /dev/null
+++ b/bin/gpkg-helper.py
@@ -0,0 +1,71 @@
+#!/usr/bin/python -b
+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+import argparse
+import sys
+import portage
+
+portage._internal_caller = True
+from portage import os
+
+
+def command_compose(args):
+
+    usage = "usage: compose <package_cpv> <binpkg_path> <metadata_dir> <image_dir>\n"
+
+    if len(args) != 4:
+        sys.stderr.write(usage)
+        sys.stderr.write("4 arguments are required, got %s\n" % len(args))
+        return 1
+
+    cpv, binpkg_path, metadata_dir, image_dir = args
+
+    if not os.path.isdir(metadata_dir):
+        sys.stderr.write(usage)
+        sys.stderr.write("Argument 3 is not a directory: '%s'\n" % metadata_dir)
+        return 1
+
+    if not os.path.isdir(image_dir):
+        sys.stderr.write(usage)
+        sys.stderr.write("Argument 4 is not a directory: '%s'\n" % image_dir)
+        return 1
+
+    gpkg_file = portage.gpkg.gpkg(portage.settings, cpv, binpkg_path)
+    metadata = gpkg_file._generate_metadata_from_dir(metadata_dir)
+    gpkg_file.compress(image_dir, metadata)
+    return os.EX_OK
+
+
+def main(argv):
+
+    if argv and isinstance(argv[0], bytes):
+        for i, x in enumerate(argv):
+            argv[i] = portage._unicode_decode(x, errors="strict")
+
+    valid_commands = ("compress",)
+    description = "Perform metadata operations on a binary package."
+    usage = "usage: %s COMMAND [args]" % os.path.basename(argv[0])
+
+    parser = argparse.ArgumentParser(description=description, usage=usage)
+    options, args = parser.parse_known_args(argv[1:])
+
+    if not args:
+        parser.error("missing command argument")
+
+    command = args[0]
+
+    if command not in valid_commands:
+        parser.error("invalid command: '%s'" % command)
+
+    if command == "compress":
+        rval = command_compose(args[1:])
+    else:
+        raise AssertionError("invalid command: '%s'" % command)
+
+    return rval
+
+
+if __name__ == "__main__":
+    rval = main(sys.argv[:])
+    sys.exit(rval)