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Set cache file tstamp to the mtime of most recent policy file tstamp

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Currently the cache file has its mtime set at creation time, but this
can lead to cache issues when a policy file is updated separately from
the cache. This makes it possible for an update to ship a policy file
that is newer than the what the cache file was generated from, but
result in a cache hit because the cache file was local compiled after
the policy file was package into an update (this requires the update
to set the mtime of the file when locally installed to the mtime of
the file in its update archive but this is commonly done, especially
in image based updates).

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Seth Arnold <seth.arnold@canonical.com>
This commit is contained in:
John Johansen
2015-06-06 01:22:53 -07:00
parent c2bbe64ab1
commit 5d0e6c26b7
4 changed files with 29 additions and 14 deletions
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1
parser/parser.h
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@@ -333,7 +333,6 @@ extern int abort_on_error;
extern int skip_bad_cache_rebuild;
extern int mru_skip_cache;
extern int debug_cache;
extern struct timespec mru_tstamp;
/* provided by parser_lex.l (cannot be used in tst builds) */
extern FILE *yyin;