Squashed 'yocto-poky/' changes from ea562de..7b86c77

7b86c77 bitbake: bitbake: bb.fetch2.git: Import errno module
e993aa6 bitbake: toaster: hide irrelevant builds in the project builds view
5b4e380 bitbake: data_smart: Ensure OVERRIDES dependencies account for contains()
60d019d bitbake: data_smart: Correctly handle OVERRIDE values set using ??=
701ad76 bitbake: data_smart: When considering OVERRIDE dependencies, do so recursively
4325f6f bitbake: data_smart: Expand overrides cache recursively
3a5e46b bitbake: bb.fetch2.{git, hg}: remove tarball if it needs updating
441f04c bitbake: toaster: Simplify redirects when build page parameters are missing
30f9f79 bitbake: toaster: Fix date range pickers on the project builds page
047245f bitbake: toaster: Show correct builds count on project pages
5528f3a bitbake: toaster: hide irrelevant builds in the project builds view
2bb600a bitbake: tests/fetch.py: Fix recursion failure in url mapping
4c3d4ec bitbake: fetch2/__init__.py: uri_replace regex handling
460e4c2 bitbake: toaster: Don't def a function for each call to build_artifact()
b6d1d2a bitbake: toaster: Avoid unnecessary local to local copy of cooker log
8c63d60 bitbake: toaster: Read correct cooker log path from toasterui
013c030 bitbake: toaster: delete multiple builds cleanup
3165af3 bitbake: data_smart: Separate out update_overridevars into separate function
07aef86 bitbake: cache: Handle spaces and colons in directory names for file-checksums
9679500 autotools.bbclass: mkdir ${B} -> mkdir -p ${B}
c30ee2a perf: mkdir ${B} -> mkdir -p ${B}
d18612a recipetool: add 'newappend' sub-command
4727384 oeqa/sstatetests: Add test for nativesdk stamp invariance with MACHINE
56b2c53 glibc: Ensure OVERRIDES doesn't influence sstate checksum
1884550 image.py: Ensure base image size is an integer
ec72426 python: Add python-misc as rdependency to python-modules
c170f35 cryptodev-tests: don't use STAGING_KERNEL_DIR, fix re-packaging in multi-machine builds
2d7fe03 adwaita-icon-theme: RREPLACE gnome-icon-theme
94d280f mkelfimage: fix owner for /usr/sbin/mkelfImage
3323c3f nspr: fix SRC_URI
935a8bd mkefidisk: Create interactive menu for the script
6c05e6a image.bbclass: add do_rootfs vardeps for {COMPRESS, IMAGE}_CMD_*
82be1f3 squashfs-tools: make it be able to be compiled by gcc5 with "-O0"
dc3bc22 linux-firmware: package Broadcom BCM4354 firmware
db8f796 perf: fix the install-python_ext on upstream kernel
bfe2cd1 systemd: fix missing space in SRC_URI append
2515cf2 python: remove --with-wctype-functions configure option
17f5a5a kmod: fix link creation when base_bindir != /bin
e2cfe93 prelink: Move to latest release
32472dc glibc: don't require bash for nscd init script
d8eb9d4 oeqa/decorators: Added decorator to restart the DUT in case of test hang.
5acf99d init-install-efi.sh: Avoid /mnt/mtab creation if already present

git-subtree-dir: yocto-poky
git-subtree-split: 7b86c771c80d0759c2ca0e57c46c4c966f89c49e
diff --git a/bitbake/lib/bb/fetch2/git.py b/bitbake/lib/bb/fetch2/git.py
index 40658ff..9bd87ad 100644
--- a/bitbake/lib/bb/fetch2/git.py
+++ b/bitbake/lib/bb/fetch2/git.py
@@ -66,6 +66,7 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
+import errno
 import os
 import re
 import bb
@@ -181,8 +182,6 @@
     def download(self, ud, d):
         """Fetch url"""
 
-        ud.repochanged = not os.path.exists(ud.fullmirror)
-
         # If the checkout doesn't exist and the mirror tarball does, extract it
         if not os.path.exists(ud.clonedir) and os.path.exists(ud.fullmirror):
             bb.utils.mkdirhier(ud.clonedir)
@@ -220,7 +219,11 @@
             runfetchcmd(fetch_cmd, d)
             runfetchcmd("%s prune-packed" % ud.basecmd, d)
             runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d)
-            ud.repochanged = True
+            try:
+                os.unlink(ud.fullmirror)
+            except OSError as exc:
+                if exc.errno != errno.ENOENT:
+                    raise
         os.chdir(ud.clonedir)
         for name in ud.names:
             if not self._contains_ref(ud, d, name):
@@ -228,7 +231,7 @@
 
     def build_mirror_data(self, ud, d):
         # Generate a mirror tarball if needed
-        if ud.write_tarballs and (ud.repochanged or not os.path.exists(ud.fullmirror)):
+        if ud.write_tarballs and not os.path.exists(ud.fullmirror):
             # it's possible that this symlink points to read-only filesystem with PREMIRROR
             if os.path.islink(ud.fullmirror):
                 os.unlink(ud.fullmirror)