bb.fetch2.{git, hg}: remove tarball if it needs updating

We were maintaining state in the form of ud.repochanged to determine whether
we need to write the tarball in the case where the tarball already exists, but
this state is maintained only in memory. If we need to update the git repo,
set ud.repochanged to True, and then are interrupted or killed, the tarball
will then be out of date.

Rather than maintaining this state, simply remove the out of date tarball when
we update the git repo, and it will be re-created with updated content in
build_mirror_data.

[YOCTO #6366]

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/fetch2/git.py b/lib/bb/fetch2/git.py
index 40658ff94c7d3e257fdf02b1db4034bed457be49..4a32a31e40fa2e208413d05bd19d0891dca36681 100644 (file)
--- a/lib/bb/fetch2/git.py
+++ b/lib/bb/fetch2/git.py
@@ -181,8 +181,6 @@ class Git(FetchMethod):
     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 +218,11 @@ class Git(FetchMethod):
             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 +230,7 @@ class Git(FetchMethod):
 
     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)

diff --git a/lib/bb/fetch2/hg.py b/lib/bb/fetch2/hg.py
index d978630baca9303323092c8b389e4861b5f7cccc..bbb4ed95dc9582a48d20076cf55e0ddeac9d64c1 100644 (file)
--- a/lib/bb/fetch2/hg.py
+++ b/lib/bb/fetch2/hg.py
@@ -163,8 +163,6 @@ class Hg(FetchMethod):
     def download(self, ud, d):
         """Fetch url"""
 
-        ud.repochanged = not os.path.exists(ud.fullmirror)
-
         logger.debug(2, "Fetch: checking for module directory '" + ud.moddir + "'")
 
         # If the checkout doesn't exist and the mirror tarball does, extract it
@@ -189,7 +187,11 @@ class Hg(FetchMethod):
                 logger.debug(1, "Running %s", pullcmd)
                 bb.fetch2.check_network_access(d, pullcmd, ud.url)
                 runfetchcmd(pullcmd, d)
-                ud.repochanged = True
+                try:
+                    os.unlink(ud.fullmirror)
+                except OSError as exc:
+                    if exc.errno != errno.ENOENT:
+                        raise
 
         # No source found, clone it.
         if not os.path.exists(ud.moddir):
@@ -238,7 +240,7 @@ class Hg(FetchMethod):
 
     def build_mirror_data(self, ud, d):
         # Generate a mirror tarball if needed
-        if ud.write_tarballs == "1" and (ud.repochanged or not os.path.exists(ud.fullmirror)):
+        if ud.write_tarballs == "1" 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)