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This will allow more options to be added without updating everywhere
that constructs a ManifestParser. Also extend the AssertParse function
to take the options so tests can control them.
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Visual C++ 2015 warns if a local variable hides visibility of another variable
in a higher scope. Since this project declares warnings as errors, ninja_test
simply won't build on Visual C++ 2015.
The variables have been renamed and scope limited as appropriate, so that
ninja_test will build without error now on Visual C++ 2015.
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Return a status so callers can distinguish a missing file from an empty
file. This allows our VirtualFileSystem test infrastructure to report
as missing any file for which it has no entry.
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Also check for Stat() failure in a few more places.
This way, ninja doesn't print two "ninja: error: " lines if stat() fails
during a build. It also makes it easier to keep the stat tests quiet.
Every caller of Stat() needs to explicitly log the error string if
that's desired.
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Fixes #867, both the crashes and "[stuck]" issues.
The problem was that a duplicate edge would modify the in_edge of the
outputs of the new build rule, but the edge corresponding to the old
build rule would still think that the in_edge points to itself.
`old_edge->outputs_[0]->in_edge()` would not return `old_edge`, which
confused the scan logic.
As fix, let `State::AddOut()` reject changing in_edge if it's already
set. This changes behavior in a minor way: Previously, if there were
multiple edges for a single output, the last edge would be kept. Now,
the first edge is kept. This only had mostly-well-defined semantics if
all duplicate edges are the same (which is the only case I've seen in
practice), and for that case the behavior doesn't change.
For testing, add a VerifyGraph() function and call that every time any
test graph is parsed. That's a bit more code than just copying the test
cases from the bug into build_test.cc, but it also yields better test
coverage overall.
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Ninja currently uses googletest for testing. That makes building
ninja_test somewhat annoying since it requires that one passes
--with-gtest PATH to configure. It turns out just implementing the bits
of googletest that ninja uses needs about the same amount of code than
making the --with-gtest flag in configure.py work and making googletest
print test results in a way we want (!)
In addition to making configuration simpler, this also makes compiling
tests much faster: On my system, touching src/build_test.cc (the slowest
file to build in ninja) and rebuilding ninja_tests is twice as fast than
without this patch. Building all is noticeably faster too: 5.6s with
this patch, 9.1s without this patch (38% faster).
The most noticeable things missing: EXPECT_* and ASSERT_* don't support
streaming notes to them with operator<<, and for failing tests the lhs
and rhs are not printed. That's so that this header does not have to
include sstream, which slows down building ninja_test almost 20%.
If this turns out to be annoying, we can maybe add it.
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It touched the various remaining XXXes in the code, hooray.
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It's the only piece that cares about the current time.
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.build_log load time 350ms -> 17ms, filesize 197MB -> 1.6MB on
Mac. On Windows, it's 500ms -> 20ms.
Makes the build log a lot less useful for scripts, but there could
be a tool for use cases that need log information. A prototype of
such a tool is in https://github.com/nico/ninja/commit/1b243d311
The hash function is 64bit murmurhash2. Assuming that that different
commands get the same hash only by chance, it's is very unlikely
for two different commands to hash to the same value with a 64bit
hash.
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current settings
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This was a TODO in src/ninja_jumble.cc. Now this task is completed.
Signed-off-by: Thiago Farina <tfarina@chromium.org>
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When running ./ninja the compilation fails because test.h uses DiskInterface but
doesn't include disk_interface.h to get the declaration.
Signed-off-by: Thiago Farina <tfarina@chromium.org>
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Clean all was not returning non-zero when an error occur (like when
failing to remove a directory). This patch fix the problem and add a test
for it.
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It also fix a bug about the count of removed file reported.
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