aportgen: add grub_efi generator (!1771)

This repackages Alpine's grub-efi x86 package for all other
architectures. This is required by grub-x86.

pmb/aportgen/__init__.py

@@ -24,6 +24,7 @@ import pmb.aportgen.device
 import pmb.aportgen.gcc
 import pmb.aportgen.linux
 import pmb.aportgen.musl
+import pmb.aportgen.grub_efi
 import pmb.config
 import pmb.helpers.cli
 

pmb/aportgen/grub_efi.py

@@ -0,0 +1,87 @@
+"""
+Copyright 2019 Nick Reitemeyer
+
+This file is part of pmbootstrap.
+
+pmbootstrap is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+pmbootstrap is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with pmbootstrap.  If not, see <http://www.gnu.org/licenses/>.
+"""
+import glob
+import os
+import pmb.helpers.run
+import pmb.aportgen.core
+import pmb.parse.apkindex
+import pmb.chroot.apk
+import pmb.chroot.apk_static
+
+
+def generate(args, pkgname):
+    arch = "x86"
+    if pkgname != "grub-efi-x86":
+        raise RuntimeError("only grub-efi-x86 is available")
+    package_data = pmb.parse.apkindex.package(args, "grub")
+    version = package_data["version"]
+    pkgver = version.split("-r")[0]
+    pkgrel = version.split("-r")[1]
+
+    pmb.chroot.apk.install(args, ["grub-efi"], "buildroot_x86")
+    pattern = (args.work + "/cache_apk_" + arch + "/grub-efi-" +
+               version + ".*.apk")
+    glob_result = glob.glob(pattern)
+    if not len(glob_result):
+        raise RuntimeError("Could not find aport " + pattern + "!"
+                           " Update your aports_upstream git repo"
+                           " to the latest version, delete your http cache"
+                           " (pmbootstrap zap -hc) and try again.")
+    path = glob_result[0]
+    path_target = (args.work + "/cache_distfiles/grub-efi-" +
+                   version + "-" + arch + ".apk")
+    if not os.path.exists(path_target):
+        pmb.helpers.run.root(args, ["cp", path, path_target])
+
+    # Hash the distfile
+    hashes = pmb.chroot.user(args, ["sha512sum",
+                                    "grub-efi-" + version + "-" + arch + ".apk"],
+                             "buildroot_" + arch, "/var/cache/distfiles",
+                             output_return=True)
+
+    pmb.helpers.run.user(args, ["mkdir", "-p", args.work + "/aportgen"])
+    with open(args.work + "/aportgen/APKBUILD", "w", encoding="utf-8") as handle:
+        handle.write("# Automatically generated aport, do not edit!\n"
+                     "# Generator: pmbootstrap aportgen " + pkgname + "\n"
+                     "\n"
+                     "pkgname=" + pkgname + "\n"
+                     "pkgver=" + pkgver + "\n"
+                     "pkgrel=" + pkgrel + "\n"
+                     "\n"
+                     "_arch=\"" + arch + "\"\n"
+                     "_mirror=\"" + args.mirror_alpine + "\"\n"
+                     )
+        static = """
+            pkgdesc="GRUB $_arch EFI files for every architecture"
+            url="https://www.gnu.org/software/grub/"
+            license="GPL-3.0-or-later"
+            arch="all"
+            source="grub-efi-$pkgver-r$pkgrel-$_arch.apk::$_mirror/edge/main/$_arch/grub-efi-$pkgver-r$pkgrel.apk"
+
+            package() {
+                mkdir -p "$pkgdir"
+                cd "$pkgdir"
+                tar -xf "$srcdir/grub-efi-$pkgver-r$pkgrel-$_arch.apk"
+                rm .PKGINFO .SIGN.*
+            }
+        """
+        for line in static.split("\n"):
+            handle.write(line[12:] + "\n")
+
+        handle.write("sha512sums=\"" + hashes.rstrip() + "\"\n")

pmb/config/__init__.py

@@ -420,7 +420,7 @@ git_repos = {
 #
 aportgen = {
     "cross": {
-        "prefixes": ["binutils", "busybox-static", "gcc", "musl"],
+        "prefixes": ["binutils", "busybox-static", "gcc", "musl", "grub-efi"],
         "confirm_overwrite": False,
     },
     "device": {