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The current common vcs interface and its implementations are designed to
support a very big number of situations (git modules, cleaning up
complex state, etc), which is too heavy and restrictive when we just
need a thin wrapper over the git command that supports a few basic
operations.
Refactor pkg/vcs to split out the wrapper code from the big git
implementation of the vcs.Repo interface.
Export the wrapper to enable reuse in other parts of the system.
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Currently we have HeadCommit function that returns info
about the HEAD commit. Change it to a more flexible Commit
function that can return info about any commit.
This will be used in future changes.
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It's not needed anymore.
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This commit replaces all `ioutil.TempDir` with `t.TempDir` in tests.
The directory created by `t.TempDir` is automatically removed when the
test and all its subtests complete.
Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
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Returns true if the current tree contains the specified commit
(the commit is reachable from the current HEAD).
Cntains(commit string) (bool, error)
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Store config options identified using DebugTracer. Also change bisection
and configuration minimization code to use new DebugTracer.
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The pkg/vcs code assumed that we fully manage the repo
within an autonomous program. In particular it tried
to repair any errors by dropping and re-creating the repo.
This does not work well for command-line tools that work
with a user-provided repo. Add OptPrecious for such uses.
Update #2171
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Create a struct on pkg/vcs to store data of syzkaller email recipients
and update its users. The struct contains default name, email, and a
label to divide user into To and Cc when sending the emails.
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At some point it was enabled, but then somehow got disabled.
Re-enable and fix some regressions.
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Update #1527
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Detect bisection to merge commits and to commits that don't affect
kernel binary (comments, other arches, whitespaces, etc).
Such bisections are not reported in emails (but shown on web).
Update #1271
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(note: incomplete change)
Refactor existing code as follows:
* Move reusable test utility functions from git_repo_test.go to
pkg/vcs/test_util.go and make them exported.
* Split Run() into Run()+runImpl().
* Change type of bisect.go:env.inst to `instance.BuilderTester`.
Change usage inside syz-testbuild/testbuild.go accordingly.
* Move most of linux.PreviousReleaseTags() into vcs/git.go as
git.previousReleaseTags().
* Allow build.CompilerIdentity to be mocked.
Introduce the following changes:
* instance.BuilderTester is an interface with methods
BuildSyzkaller()
BuildKernel()
Test()
NewEnv() now returns this interface.
* type testEnv implements instance.BuilderTester.
* type testBuilder implements builder interface. Add a entry into table
inside pkg/build/build.go:getBuilder() to return testBuilder object.
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OpenBSD uses cvs and does not enforce the standard Git convention for
commit messages of putting a summary followed by a new line and body.
If such commit[1] contains a `Reported-by` header, it's currently not
detected. Instead, if the body is empty try to extract data from the
commit summary.
[1] https://github.com/openbsd/src/commit/bdbfbec5cea84d24d6a598cf1e63dbdb10e8331a
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In preparation for syz-ci bisection:
- move bisection function into a separate interface
they look out of place in vcs.Repo because most OSes
don't implement it and most users don't case
- extract author name and more CC emails for commits
- move linux-specific PreviousReleaseTags into linux.go
- fix inconclusive bisection (more than 1 potential commits)
- add tests fr bisection
- add maintainers returned from get_maintainers.pl for commits
that don't have enough emails (e.g. only author email)
Update #501
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This implements 2 features:
- syz-ci polls a set of additional repos to discover fixing commits sooner
(e.g. it can now discover a fixing commit in netfilter tree before
it reaches any of the tested trees).
- syz-ci uploads info about commits to dashboard.
For example, a user marks a bug as fixed by commit "foo: bar".
syz-ci will find this commit in the main namespace repo
and upload commmit hash/date/author to dashboard. This in turn
allows to show links to fixing commits.
Fixes #691
Fixes #610
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syz-ci disabling does not work across syz-ci updates.
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Fixes #728
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