Write custom os-release (closes #324) (#439)

* Write custom os-release (closes #324)
* Return empty string instead of crashing when the directory is not a git repository
* Use https in homepage URL

pmb/helpers/git.py

@@ -33,3 +33,14 @@ def clone(args, repo_name):
         logging.info("(native) git clone " + pmb.config.git_repos[repo_name])
         pmb.chroot.user(args, ["git", "clone", "--depth=1",
                                pmb.config.git_repos[repo_name], repo_name], working_dir="/home/user/git/")
+
+
+def rev_parse(args, revision="HEAD"):
+    rev = pmb.helpers.run.user(args, ["git", "rev-parse", revision],
+                               working_dir=args.aports,
+                               return_stdout=True,
+                               check=False)
+    if rev is None:
+        logging.warning("WARNING: Failed to determine revision of git repository at " + args.aports)
+        return ""
+    return rev.rstrip()

pmb/install/file.py

@@ -0,0 +1,42 @@
+"""
+Copyright 2017 Pablo Castellano
+
+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 logging
+
+import pmb.config
+import pmb.helpers.git
+
+
+def write_os_release(args, suffix):
+    logging.info("(" + suffix + ") write /etc/os-release")
+    revision = pmb.helpers.git.rev_parse(args)
+    filepath = args.work + "/chroot_" + suffix + "/tmp/os-release"
+    os_release = ('PRETTY_NAME="postmarketOS {version}"\n'
+                  'NAME="postmarketOS"\n'
+                  'VERSION_ID="{version}"\n'
+                  'VERSION="{version}-{hash:.8}"\n'
+                  'ID="postmarketos"\n'
+                  'ID_LIKE="alpine"\n'
+                  'HOME_URL="https://www.postmarketos.org/"\n'
+                  'SUPPORT_URL="https://github.com/postmarketOS/"\n'
+                  'BUG_REPORT_URL="https://github.com/postmarketOS/"\n'
+                  'PMOS_HASH="{hash}"\n'
+                  ).format(version=pmb.config.version, hash=revision)
+    with open(filepath, "w") as handle:
+        handle.write(os_release)
+    pmb.chroot.root(args, ["mv", "/tmp/os-release", "/etc/os-release"], suffix)

pmb/install/install.py

@@ -27,6 +27,7 @@ import pmb.chroot.initfs
 import pmb.config
 import pmb.helpers.run
 import pmb.install.blockdevice
+import pmb.install.file
 import pmb.install
 
 
@@ -181,6 +182,7 @@ def install(args):
     # because that doesn't always happen automatically yet, e.g. when the user
     # installed a hook without pmbootstrap - see #69 for more info)
     pmb.chroot.apk.install(args, install_packages, suffix)
+    pmb.install.file.write_os_release(args, suffix)
     for flavor in pmb.chroot.other.kernel_flavors_installed(args, suffix):
         pmb.chroot.initfs.build(args, flavor, suffix)