Using the | and & operators in boolean conditions results in a warning
from Error Prone:
[ShortCircuitBoolean]
Prefer the short-circuiting boolean operators && and || to & and |.
see https://errorprone.info/bugpattern/ShortCircuitBoolean
Change-Id: I6cccca3fdd28bf93b302a9b8a66e68ac912cb60d
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Using the | and & operators in boolean conditions results in a warning
from Error Prone:
[ShortCircuitBoolean]
Prefer the short-circuiting boolean operators && and || to & and |.
see https://errorprone.info/bugpattern/ShortCircuitBoolean
Change-Id: I4275c60306e43c74030c4465ba02cb853ad444e1
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* stable-5.4:
Prepare 5.4.1-SNAPSHOT builds
JGit v5.4.0.201906121030-r
JGit v5.4.0.201906120450-r
Increase severity of OperatorPrecedence to ERROR, and fix instances
PackWriter: Make internal class static
Prepare 5.3.3-SNAPSHOT builds
JGit v5.3.2.201906051522-r
Prepare 5.1.9-SNAPSHOT builds
JGit v5.1.8.201906050907-r
Test detecting modified packfiles
Enhance fsTick() to use filesystem timer resolution
Add debug trace to measure time needed to open pack index
Extend FileSnapshot for packfiles to also use checksum to detect changes
Wait opening new packfile until it can't be racy anymore
Avoid null PackConfig in GC
Add FileSnapshot test testing recognition of file size changes
Capture reason for result of FileSnapshot#isModified
Skip FileSnapshotTest#testSimulatePackfileReplacement on Windows
Tune max heap size for tests
Fix FileSnapshotTest.testNewFileNoWait() to match its javadoc
ObjectDirectory: fix closing of obsolete packs
Update API filters for methods added to fix bugs
Bazel: Increase severity of most error-prone checks to ERROR
Enable error-prone checks by default
Add bazel options to align with gerrit's
Include filekey file attribute when comparing FileSnapshots
Measure file timestamp resolution used in FileSnapshot
Fix FileSnapshot's consideration of file size
Fix API problem filters
Fix API problem filters
Change-Id: I4abbaaf79da1944244511aad97d2df09d47c0c3c
Fix all remaining instances of the OperatorPrededence warning, by adding
parentheses to make the precedence explicit.
Change-Id: Ib296dfed09f9be042d0ff0f7fad8214e4dd766b4
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* master:
Handle missing "ours" stage in WorkingTreeIterator.hasCrLfInIndex()
Config: Add helper method to check for empty value
ErrorProne: Increase severity of FutureReturnValueIgnored to ERROR
FS_Win32: Add missing parentheses on if-blocks
Upgrade spotbugs to 3.1.12
Abbreviated{Long}ObjectId: Make operator precedence explicit
GC: Update TODO comments
FS_POSIX: Fix reference comparison of Boolean.FALSE
Increase bazel timeout for long running tests
Use bazelisk to switch between used bazel version
Bump minimum Bazel version to 0.26.1
Bazel: Bump skylib library version to 0.8.0
Retry loading config when locked by another process
Make pull --rebase on an unborn branch do a checkout
Warn if configured cookie file is missing
Handle escaped CR-LF in git config files
DescribeCommand: use glob match instead of path match
Fix off-by-one error in RebaseTodoFile when reading a todo file
Consistently use "!isEmpty()" to detect non-empty list
TransportHttp: Check for non-empty list with "!isEmpty()" rather than
"size() > 0"
TransportHttp: Fix comparison of size with ">= 0"
NetscapeCookieFileTest: Split HttpCookiesMatcher to own class
Bazel: Add missing dependency on mockito for TransportHttpTest
Determine hard-linking and nlink support per FileStore
Support reading and writing cookies.
Repository: Add getIdentifier() method to avoid instanceof operator
Update to Orbit R20190602212107
PacketLineIn: Deprecate the END constant
PacketLineIn: Add an iterator over strings in the input stream
Replace most usages of PacketLineIn.END with PacketLineIn.end()
PacketLineIn: Deprecate DELIM constant
Replace trivial reference comparison of PacketLineIn.{DELIM,END}
PacketLineIn: Rename isDelim to isDelimiter
ProtocolV2ParserTest: Fix typo in comment
Upgrade Bouncy Castle to 1.61
Update to Orbit R20190531194818 and rollback update to Ant 1.10.6
cli: Add the --always option to describe
DescribeCommand: Support the "always" option
cli: Add the --tags option to describe
DescribeCommand: Consistenly omit the default value
Remove excess blank line in FileUtilsTest
PacketLineIn: Add helper methods to check for END and DELIM
UploadPackTest: Rename variable to avoid hiding class member
UploadPackTest: Add missing <> operator on instantiation of ArrayList
BitmapCalculator: javadoc fixes
RevWalkUtils: add progress callback to findBranchesReachableFrom
Upgrade maven-source-plugin to 3.1.0
Upgrade maven-jar-plugin to 3.1.2
Upgrade jacoco-maven-plugin to 0.8.4
BitmapCalculator and its test: add missing license header
RevWalk: new method createReachabilityChecker()
Change-Id: I4d76c7c0dbe6411c842f3468b709f7df51789c08
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
In a delete-modify conflict with the deletion as "ours" there may be
no stage 2 in the index. Add appropriate null checks. Add a new test
for this case, and verify that the file gets added with a single LF
after conflict resolution with core.autocrlf=true. This matches the
behavior of canonical git for this case.
Bug: 547724
Change-Id: I1bafdb83d9b78bf85294c78325e818e72fae53bc
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Rename MAGIC_EMPTY_VALUE to MISSING_ENTRY, make it private, and add
a helper method to check if a given string is that value.
This avoids that callers trigger the "reference equality" warning
from Error Prone.
Change-Id: Idc76f78c0cf1828aa48d02ee33911a4b5df50355
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
The only remaining code where the return value is ignored is in tests.
Update them to store the value and perform a basic assertion.
Change-Id: I29ef5bd5dd0648aac3490f9e47ecc74544109652
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
The TODO comments say "in 5.0", but 5.0 was already released without
resolving them. Remove "in 5.0" on the assumption that the mentioned
improvements still need to be done at some point.
Change-Id: I3eb429803e2266de3fc490e1f3912991c08aa1ad
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
EolRepositoryTest and GcCommitSelectionTest timed out frequently when
running unit tests using bazel with the default timeout "moderate"
(300s). Increase timeout of these tests to "long" (900s).
Change-Id: I43588cf950f55b50f868d9fe9c66d22bd428a54c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Bazelisk is utility to switch to the right Bazel version, that we
used to have with Buck build tool: [1].
Bazelisk will download the right Bazel version only once and will use
it in subsequent calls:
$ bazelisk build :release
2019/06/06 16:22:15 Downloading \
https://releases.bazel.build/0.26.1/release/bazel-0.26.1-linux-x86_64...
Bazelisk is storing the binaries in user's cache directory: [2], e.g.
on Linux OS:
$ ls -1 ~/.cache/bazelisk/bin
bazel-0.26.1-linux-x86_64
* [1] https://github.com/bazelbuild/bazelisk
* [2] https://golang.org/pkg/os/#UserCacheDir
Change-Id: Ia9180fb75f8cc17a0a0232622cf33a13bfad6b60
Signed-off-by: David Ostrovsky <david@ostrovsky.org>
When loading the config, a FileNotFoundException may occur if the file
exists but cannot be read (see [1]). This is the case on Windows with a
virus scanner checking the file. Therefore if the file exists and that
exception is thrown, retry multiple times, similar to how this was
already implemented for IOException.
[1] https://docs.oracle.com/javase/8/docs/api/java/io/FileNotFoundException.html
Bug: 529522
Change-Id: Ic5dc3b7b24bb0005d6256ed00513bc7c0b91e613
Signed-off-by: Michael Keppler <Michael.Keppler@gmx.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
A merging pull on an unborn branch was already supported. But a
rebasing pull failed. If the user has pull.rebase = true in his
user config, the pull would try to rebase. Rebasing needs a parent
commit, though. Native git handles this case:
git init
git remote add origin <URI>
git pull --rebase origin master
Check up front in PullCommand for the unborn head and just do a
checkout in this case. MergeCommand already has similar code.
Bug: 544965
Change-Id: I1277e1ac0b0364b4623fd791f3d6b07bd5f58fca
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
We logged a stack trace if the configured http.cookieFile was missing.
Instead only log a warning.
Bug: 548081
Change-Id: I42e39f5ad8ffce7b43162e5068f60af073b8a126
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Canonical git treats CR-LF in config files as LF.[1][2] JGit does so,
too, except when escaped as a line continuation. Correct this and
treat the sequence \-CR-LF as a line continuation.
[1] https://github.com/git/git/commit/db2c075d9
[2] https://github.com/git/git/blob/v2.21.0/config.c#L485
Bug: 545850
Change-Id: I51e7378a22c21b3baa3701163c423d04c900af5a
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Otherwise tags may fail to match if their name contains slashes.
Canonical git also uses its wildcard matcher in glob mode.[1]
[1] https://github.com/git/git/blob/v2.21.0/builtin/describe.c#L182
Bug: 546703
Change-Id: I122c7959974fa1fc6a53dfc65837e4314a8badd4
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Commit messages of length 1 were not read. 'lineEnd' is the offset
of the last character in the line before the terminating LF or CR-LF,
and 'nextSpace' is actually the offset of the character _after_ the
next space. With a one-character commit message, nextSpace == lineEnd.
The code also assumes the commit message to be optional, but actually
failed in that case because it read beyond the line ending. Fix that,
too.
Add a test case for reading a todo file.
Bug: 546245
Change-Id: I368d63615930ea2398a6230e756442fd88870654
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Replace "size() > 0" with "!isEmpty()" where appropriate.
In the Status implementation we can drop the check; the subsequent
loop will only execute when the list is non-empty anyway.
Change-Id: I355aff551a603373e702a9d44304f087b476263c
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Error Prone reports:
[SizeGreaterThanOrEqualsZero] Comparison of a size >= 0 is always true,
did you intend to check for non-emptiness?
see https://errorprone.info/bugpattern/SizeGreaterThanOrEqualsZero
Change-Id: Ie964771cacca4b15569eb45f6e273ad2a7e2e49c
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
The bazel build fails due to NetscapeCookieFileTest's internal class not
being visible to TransportHttpTest.
Split the file out to its own class in the util package, so it's visible
to both.
Change-Id: I69236026eecb9d08a9a66e51752a80ea522b0c6a
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
It's quite possible that JGit can use the hard-linking mechanism
for atomic file creation on some volumes but not on others.
Ultimately it depends on the file systems on the mounted volumes.
Cache the information per FileStore instead of using a single
global flag. Also catch FileSystemException, it may be thrown
if the operating system reports a failure. The previously caught
AccessDeniedException is a sub-class of FileSystemException.
Bug: 547332
Change-Id: I1ef672b3468b0be79e71674344f16f28f9d11ba1
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
The git config entries "http.cookieFile" and
"http.saveCookies" are correctly evaluated.
Bug: 488572
Change-Id: Icfeeea95e1a5bac3fa4438849d4ac2306d7d5562
Signed-off-by: Konrad Windszus <konrad_w@gmx.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
When Error Prone checks are enabled, the "ClassCanBeStatic" warning is
triggered:
Inner class is non-static but does not reference enclosing class
see https://errorprone.info/bugpattern/ClassCanBeStatic
Change-Id: I5a0e3bf0cf8c28176d9c98914c1c0dfab9c5736f
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* stable-5.3:
Prepare 5.3.3-SNAPSHOT builds
JGit v5.3.2.201906051522-r
Prepare 5.1.9-SNAPSHOT builds
JGit v5.1.8.201906050907-r
Test detecting modified packfiles
Enhance fsTick() to use filesystem timer resolution
Add debug trace to measure time needed to open pack index
Extend FileSnapshot for packfiles to also use checksum to detect changes
Wait opening new packfile until it can't be racy anymore
Avoid null PackConfig in GC
Add FileSnapshot test testing recognition of file size changes
Capture reason for result of FileSnapshot#isModified
Skip FileSnapshotTest#testSimulatePackfileReplacement on Windows
Tune max heap size for tests
Fix FileSnapshotTest.testNewFileNoWait() to match its javadoc
ObjectDirectory: fix closing of obsolete packs
Update API filters for methods added to fix bugs
Bazel: Increase severity of most error-prone checks to ERROR
Enable error-prone checks by default
Add bazel options to align with gerrit's
Include filekey file attribute when comparing FileSnapshots
Measure file timestamp resolution used in FileSnapshot
Fix FileSnapshot's consideration of file size
Fix API problem filters
Fix API problem filters
Change-Id: Ie1c7e4752661aec9e1754660934921224e2408eb
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This change is needed to implement permission aware ref database in
Gerrit: [1], that is a pre-requisite to re-enable Git v2 protocol in
Gerrit: [2].
Background: Last year Git v2 protocol was enabled in Gerrit. The fact,
that JGit layer was not calling ref advertise filter for Git v2
protocol, introduced security vulnerability.
The lesson learned from this security incident: Gerrit should not rely
on ref advertise filter being called by JGit to implement crictical
security checks. Instead, the idea is to use the same approach as
currently used by Google's internal code on googlesource.com that
didn't suffer from this vulnerability: provide a custom repository to
JGit. The repository provides a RefDatabase that is permission-aware
and will only ever return refs that the user has access to.
However, due to hard coded instanceof operator usages in JGit code
base, some tests in Gerrit are failing with: [1] in place. This change
addresses this problem.
[1] https://gerrit-review.googlesource.com/c/gerrit/+/212874
[2] https://gerrit-review.googlesource.com/c/gerrit/+/226754
Change-Id: I67c0f53ca33b149442e7ee3e51910d19e3f348d5
Signed-off-by: David Ostrovsky <david@ostrovsky.org>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.2:
Prepare 5.1.9-SNAPSHOT builds
JGit v5.1.8.201906050907-r
Test detecting modified packfiles
Enhance fsTick() to use filesystem timer resolution
Add debug trace to measure time needed to open pack index
Extend FileSnapshot for packfiles to also use checksum to detect changes
Wait opening new packfile until it can't be racy anymore
Avoid null PackConfig in GC
Add FileSnapshot test testing recognition of file size changes
Capture reason for result of FileSnapshot#isModified
Skip FileSnapshotTest#testSimulatePackfileReplacement on Windows
Tune max heap size for tests
Fix FileSnapshotTest.testNewFileNoWait() to match its javadoc
ObjectDirectory: fix closing of obsolete packs
Include filekey file attribute when comparing FileSnapshots
Measure file timestamp resolution used in FileSnapshot
Fix FileSnapshot's consideration of file size
Fix API problem filters
Fix API problem filters
Change-Id: Id79a3a19f9a31dff94d10a406c2b6e08a506931a
* stable-5.1:
Prepare 5.1.9-SNAPSHOT builds
JGit v5.1.8.201906050907-r
Test detecting modified packfiles
Enhance fsTick() to use filesystem timer resolution
Add debug trace to measure time needed to open pack index
Extend FileSnapshot for packfiles to also use checksum to detect changes
Wait opening new packfile until it can't be racy anymore
Avoid null PackConfig in GC
Add FileSnapshot test testing recognition of file size changes
Capture reason for result of FileSnapshot#isModified
Skip FileSnapshotTest#testSimulatePackfileReplacement on Windows
Tune max heap size for tests
Fix FileSnapshotTest.testNewFileNoWait() to match its javadoc
ObjectDirectory: fix closing of obsolete packs
Include filekey file attribute when comparing FileSnapshots
Measure file timestamp resolution used in FileSnapshot
Fix FileSnapshot's consideration of file size
Fix API problem filters
Change-Id: I3ac77bfa03f7436de12ab86e1bba29afee5ccd01
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Test that JGit detects that packfiles have changed even if they are
repacked multiple times in one tick of the filesystem timer.
Test that this detection works also when repacking doesn't change the
length or the filekey of the packfile. In this case where a modified
file can't be detected by looking at file metadata JGit should still
detect too fast modification by racy git checks and trigger rescanning
the pack list and consequently rereading of packfile content.
Change-Id: I67682cfb807c58afc6de9375224ff7489d6618fb
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
RepositoryTestCase.fsTick() was was waiting 64, 128, 256, ... milliseconds
until it detected that the filesystem timer has ticked. Make use of
the filesystemtimer resolution information in FS to sleep a fraction
of the filesystem timer resolution. That raises probability to wake up
shortly after the filesystem timer has ticked.
Change-Id: Ibcc38576e42ece13b2fd4423a29c459eed167a69
If the attributes of FileSnapshot don't detect modification of a
packfile read the packfile's checksum and compare it against the
checksum cached in the loaded packfile.
Since reading the checksum needs less IO than reloading the complete
packfile this may help to reduce the overhead to detect modficiation
when a gc completes while ObjectDirectory scans for packfiles in another
thread.
Bug: 546891
Change-Id: I9811b497eb11b8a85ae689081dc5d949ca8c4be5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
If
- pack.waitPreventRacyPack = true (default is false)
- packfile size > pack.minSizePreventRacyPack (default is 100 MB)
wait after a new packfile was written and before it is opened until it
cannot be racy anymore.
If a new packfile is accessed while it's still racy at least the pack's
index will be reread by ObjectDirectory.scanPacksImpl(). Hence it may
save resources to wait one tick of the file system timer to avoid this
reloading. On filesystems with a coarse timestamp resolution it may be
beneficial to skip this wait for small packfiles.
Bug: 546891
Change-Id: I0e8bf3d7677a025edd2e397dd2c9134ba59b1a18
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
David Pursehouse
Matthias Sohn
Ivan Frade
Thomas Wolf
David Ostrovsky
Michael Keppler
Konrad Windszus
Christian Halstrick