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* ErrorProne: Enable and fix UnusedException checkDavid Pursehouse2020-01-271-1/+1
| | | | | | | | | | | | | | | | | | | | | Enable UnusedException at ERROR level which causes the build to fail in many places with: [UnusedException] This catch block catches an symbol and re-throws another, but swallows the caught symbol rather than setting it as a cause. This can make debugging harder. Fix it by setting the caught exception as cause on the subsequently thrown exception. Note: The grammatically incorrect error message is copy-pasted as-is from the version of ErrorProne currently used in Bazel; it has been fixed by [1] in the latest version. [1] https://github.com/google/error-prone/commit/d57a39c Change-Id: I11ed38243091fc12f64f1b2db404ba3f1d2e98b5 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* Update EDL 1.0 license headers to new short SPDX compliant formatMatthias Sohn2020-01-0413-494/+65
| | | | | | | | | | This is the format given by the Eclipse legal doc generator [1]. [1] https://www.eclipse.org/projects/tools/documentation.php?id=technology.jgit Bug: 548298 Change-Id: I8d8cabc998ba1b083e3f0906a8d558d391ffb6c4 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* Merge branch 'stable-5.5'Matthias Sohn2019-11-112-2/+33
|\ | | | | | | | | | | | | | | | | | | | | * stable-5.5: BaseReceivePack: Fix the format Prepend hostname to subsection used to store file timestamp resolution Store filesystem timestamp resolution in extra jgit config SystemReader: extract updating config and its parents if outdated Change-Id: Iecfddce8081303af29badcdcd3d72a0da50c964f Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| * Store filesystem timestamp resolution in extra jgit configMatthias Sohn2019-11-092-2/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This avoids polluting hand-crafted user level config with auto-configured options which might disturb in environments where the user level config is replicated between different machines. Add a jgit config as parent of the system level config. Persist measured timestamp resolutions always in this jgit config and read it via the user global config. This has the effect that auto-configured timestamp resolution will be used by default and can be overridden in either the system level or user level config. Store the jgit config under the XDG_CONFIG_HOME directory following the XDG base directory specification [1] in order to ensure that we have write permissions to persist the file. This has the effect that each OS user will use its jgit config since they typically use different XDG_CONFIG_HOME directories. If the environment variable XDG_CONFIG_HOME is defined the jgit config file is located at $XDG_CONFIG_HOME/jgit/config otherwise the default is ~/.config/jgit/config. If you want to avoid redundant measurement for different OS users manually copy the values measured and auto-configured for one OS user to the system level git config. [1] https://wiki.archlinux.org/index.php/XDG_Base_Directory Bug: 551850 Change-Id: I0022bd40ae62f82e5b964c2ea25822eb55d94687 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* | Enable and fix "Statement unnecessarily nested within else clause" warningsDavid Pursehouse2019-10-171-2/+1
|/ | | | | | | | | | | | | | | Since [1] the gerrit project includes jgit as a submodule, and has this warning enabled, resulting in 100s of warnings in the console. Also enable the warning here, and fix them. At the same time, add missing braces around adjacent and nearby one-line blocks. [1] https://gerrit-review.googlesource.com/c/gerrit/+/227897 Change-Id: I81df3fc7ed6eedf6874ce1a3bedfa727a1897e4c Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* Merge "RevWalk: Traverse all parents of UNINTERESTING commits"Jonathan Tan2019-08-261-1/+38
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| * RevWalk: Traverse all parents of UNINTERESTING commitsAlex Spradlin2019-08-261-1/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When firstParent is set, RevWalk traverses only the first parent of a commit, even though that commit is UNINTERESTING. Since we want the maximal UNINTERESTING set, we shouldn't prune any parents here. This issue is apparent only when some of the commits being traversed are unparsed, since walker.carryFlagsImpl() propagates the UNINTERESTING flag to all parsed ancestors, masking the issue. Therefore teach RevWalk to traverse all parents when a commit is UNINTERESTING and not only the first parent. Since this issue is masked by commit parsing, also test situations when the commits involved are unparsed. Signed-off-by: Alex Spradlin <alexaspradlin@google.com> Change-Id: I95e2ad9ae8f1f50fbecae674367ee7e0855519b1
* | Fix error occurring when SecurityManager is enabledNail Samatov2019-08-231-0/+94
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's expected that jgit should work without native git installation. In such case Security Manager can be configured to deny access to the files outside of git repository. JGit tries to find cygwin installation. If Security manager restricts access to some folders in PATH, it should be considered that those folders are absent for jgit. Also JGit tries to detect if symbolic links are supported by OS. If security manager forbids creation of symlinks, it should be assumed that symlinks aren't supported. Bug: 550115 Change-Id: Ic4b243cada604bc1090db6cc1cfd74f0fa324b98 Signed-off-by: Nail Samatov <sanail@yandex.ru>
* | Merge branch 'stable-5.3' into stable-5.4Matthias Sohn2019-08-202-9/+68
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * stable-5.3: Fix NPE in RebaseTodoFile#parseComments Fix NPE in ObjectIdOwnerMap#get Fix NPE in CommitOnlyTest#getHead FileUtils#lastModifiedInstant should not log error if path doesn't exist Cache user global and system-wide git configurations Avoid setup and saving FileStoreAttributes compete for ~/.gitconfig lock Add missing dependencies for running FS_POSIXTest in Eclipse Fix javadoc for SystemReader#getInstance Improve retry handling when saving FileStoreAttributes fails Ensure FSTest uses MockSystemReader Make supportsAtomicCreateNewFile return true as default Update orbit to R20190602212107-2019-06 to enable backports from master Handle InvalidPathException in FS_POSIX#createNewFileAtomic Ensure root cause of lock creation failures is logged Implement toString in MockSystemReader and MockConfig LocalDiskRefTreeDatabaseTest shall use MockSystemReader Ensure LocalDiskRepositoryTestCase#setup fully uses MockSystemReader Ensure we use MockSystemReader in tests Override FileBasedConfig's save method in MockConfig Remove FileBasedConfig.load(boolean) introduced in d45219ba Disable debug log for FS in org.eclipse.jgit.test Bazel: enable logging for tests in org.eclipse.jgit.test LockFile: log exception if creation of lock file failed Stop using deprecated Constants.CHARACTER_ENCODING Change-Id: I43c2ab8b44c3e87d48e4072907ad169c81e3ffe0 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| * Merge branch 'stable-5.2' into stable-5.3Matthias Sohn2019-08-192-9/+68
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * stable-5.2: Fix NPE in RebaseTodoFile#parseComments Fix NPE in ObjectIdOwnerMap#get Fix NPE in CommitOnlyTest#getHead FileUtils#lastModifiedInstant should not log error if path doesn't exist Cache user global and system-wide git configurations Avoid setup and saving FileStoreAttributes compete for ~/.gitconfig lock Add missing dependencies for running FS_POSIXTest in Eclipse Fix javadoc for SystemReader#getInstance Improve retry handling when saving FileStoreAttributes fails Ensure FSTest uses MockSystemReader Make supportsAtomicCreateNewFile return true as default Update orbit to R20190602212107-2019-06 to enable backports from master Handle InvalidPathException in FS_POSIX#createNewFileAtomic Ensure root cause of lock creation failures is logged Implement toString in MockSystemReader and MockConfig LocalDiskRefTreeDatabaseTest shall use MockSystemReader Ensure LocalDiskRepositoryTestCase#setup fully uses MockSystemReader Ensure we use MockSystemReader in tests Override FileBasedConfig's save method in MockConfig Remove FileBasedConfig.load(boolean) introduced in d45219ba Disable debug log for FS in org.eclipse.jgit.test Bazel: enable logging for tests in org.eclipse.jgit.test LockFile: log exception if creation of lock file failed Stop using deprecated Constants.CHARACTER_ENCODING Change-Id: If0c5010a2cf151ebebb2f2088fac3ee02c5007b9 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Cache user global and system-wide git configurationsMatthias Sohn2019-08-182-5/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So far the git configuration and the system wide git configuration were always reloaded when jgit accessed these global configuration files to access global configuration options which are not in the context of a single git repository. Cache these configurations in SystemReader and only reload them if their file metadata observed using FileSnapshot indicates a modification. Change-Id: I092fe11a5d95f1c5799273cacfc7a415d0b7786c Signed-off-by: Matthias Sohn <matthias.sohn@sap.com> Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
| | * Avoid setup and saving FileStoreAttributes compete for ~/.gitconfig lockMatthias Sohn2019-08-161-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FS determines FileStore attributes in a background thread and tries to save the results to the global git configuration. This competed with LocalDiskRepositoryTestCase#setup trying to save changes to the same file requiring the same lock. This frequently led to one of the threads failing to acquire the lock. Fix this by first initiating determination of FileStore attributes which then uses a MockSystemReader not using a userConfig stored to disk which avoids this race for the lock. Change-Id: I30fcd96bc15100f8ef9b2a9eb3320bb5ace97c67 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Implement toString in MockSystemReader and MockConfigMatthias Sohn2019-08-111-0/+11
| | | | | | | | | | | | | | | | | | This helps when debugging. Change-Id: I3d72e1ea207ba60be77a7a9a840abb71ade1271c Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Ensure LocalDiskRepositoryTestCase#setup fully uses MockSystemReaderMatthias Sohn2019-08-111-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FS#getFileStoreAttributes used the real userConfig and not the mocked one. This led to test errors when running tests with Bazel since it sandboxes tests which prevents they can write to ~/.gitconfig. Fix this by first preparing the MockedSystemReader and the mocked config before calling FS#getFileStoreAttributes. Also fix ConfigTest which broke due to this change since it inherits from LocalDiskRepositoryTestCase and calls its setup method which was changed here. We can no longer assert by comparing plain text since FS adds FileStoreAttributes to the mocked userConfig. Also the default options seen by this test changed since we now use a mocked config. Change-Id: I76bc7c94953fe979266147d3b309a68dda9d4dfe Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Override FileBasedConfig's save method in MockConfigMatthias Sohn2019-08-101-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | This ensures we don't try to persist MockConfig using its superclasses save() method which fails with an NPE since MockConfig has no backing file. Change-Id: Ifba2d24c9438bb30d3828ed31a4c131f940b45eb Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* | | [error prone] suppress AmbiguousMethodReference in AnyObjectIdMatthias Sohn2019-08-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the implementation of the static equals() method to a new method and suppress the error. Deprecate the old method to signal that we intend to remove it in the next major release. See https://errorprone.info/bugpattern/AmbiguousMethodReference Change-Id: I5e29c97f4db3e11770be589a6ccd785e2c9ac7f2 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* | | Merge branch 'stable-5.3' into stable-5.4Matthias Sohn2019-08-086-38/+331
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * stable-5.3: Fix OpenSshConfigTest#config FileSnapshot: fix bug with timestamp thresholding In LockFile#waitForStatChange wait in units of file time resolution Cache FileStoreAttributeCache per directory Fix FileSnapshot#save(long) and FileSnapshot#save(Instant) Persist minimal racy threshold and allow manual configuration Measure minimum racy interval to auto-configure FileSnapshot Reuse FileUtils to recursively delete files created by tests Fix FileAttributeCache.toString() Add test for racy git detection in FileSnapshot Repeat RefDirectoryTest.testGetRef_DiscoversModifiedLoose 100 times Fix org.eclipse.jdt.core.prefs of org.eclipse.jgit.junit Add missing javadoc in org.eclipse.jgit.junit Enhance RepeatRule to report number of failures at the end Fix FileSnapshotTests for filesystem with high timestamp resolution Retry deleting test files in FileBasedConfigTest Measure filesystem timestamp resolution already in test setup Refactor FileSnapshotTest to use NIO APIs Measure stored timestamp resolution instead of time to touch file Handle CancellationException in FileStoreAttributeCache Fix FileSnapshot#saveNoConfig Use Instant for smudge time in DirCache and DirCacheEntry Use Instant instead of milliseconds for filesystem timestamp handling Workaround SecurityException in FS#getFsTimestampResolution Fix NPE in FS$FileStoreAttributeCache.getFsTimestampResolution FS: ignore AccessDeniedException when measuring timestamp resolution Add debug trace for FileSnapshot Use FileChannel.open to touch file and set mtime to now Persist filesystem timestamp resolution and allow manual configuration Increase bazel timeout for long running tests Bazel: Fix lint warning flagged by buildifier Update bazlets to latest version Bazel: Add missing dependencies for ArchiveCommandTest Bazel: Remove FileTreeIteratorWithTimeControl from BUILD file Add support for nanoseconds and microseconds for Config#getTimeUnit Optionally measure filesystem timestamp resolution asynchronously Delete unused FileTreeIteratorWithTimeControl FileSnapshot#equals: consider UNKNOWN_SIZE Timeout measuring file timestamp resolution after 2 seconds Fix RacyGitTests#testRacyGitDetection Change RacyGitTests to create a racy git situation in a stable way Deprecate Constants.CHARACTER_ENCODING in favor of StandardCharsets.UTF_8 Fix non-deterministic hash of archives created by ArchiveCommand Update Maven plugins ecj, plexus, error-prone Update Maven plugins and cleanup Maven warnings Make inner classes static where possible Fix API problem filters Change-Id: Iec3ad6ccc194582cb844310dc172c3103dae4457 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| * | Merge branch 'stable-5.2' into stable-5.3Matthias Sohn2019-08-086-38/+332
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * stable-5.2: Fix OpenSshConfigTest#config FileSnapshot: fix bug with timestamp thresholding In LockFile#waitForStatChange wait in units of file time resolution Cache FileStoreAttributeCache per directory Fix FileSnapshot#save(long) and FileSnapshot#save(Instant) Persist minimal racy threshold and allow manual configuration Measure minimum racy interval to auto-configure FileSnapshot Reuse FileUtils to recursively delete files created by tests Fix FileAttributeCache.toString() Add test for racy git detection in FileSnapshot Repeat RefDirectoryTest.testGetRef_DiscoversModifiedLoose 100 times Fix org.eclipse.jdt.core.prefs of org.eclipse.jgit.junit Add missing javadoc in org.eclipse.jgit.junit Enhance RepeatRule to report number of failures at the end Fix FileSnapshotTests for filesystem with high timestamp resolution Retry deleting test files in FileBasedConfigTest Measure filesystem timestamp resolution already in test setup Refactor FileSnapshotTest to use NIO APIs Measure stored timestamp resolution instead of time to touch file Handle CancellationException in FileStoreAttributeCache Fix FileSnapshot#saveNoConfig Use Instant for smudge time in DirCache and DirCacheEntry Use Instant instead of milliseconds for filesystem timestamp handling Workaround SecurityException in FS#getFsTimestampResolution Fix NPE in FS$FileStoreAttributeCache.getFsTimestampResolution FS: ignore AccessDeniedException when measuring timestamp resolution Add debug trace for FileSnapshot Use FileChannel.open to touch file and set mtime to now Persist filesystem timestamp resolution and allow manual configuration Increase bazel timeout for long running tests Bazel: Fix lint warning flagged by buildifier Update bazlets to latest version Bazel: Add missing dependencies for ArchiveCommandTest Bazel: Remove FileTreeIteratorWithTimeControl from BUILD file Add support for nanoseconds and microseconds for Config#getTimeUnit Optionally measure filesystem timestamp resolution asynchronously Delete unused FileTreeIteratorWithTimeControl FileSnapshot#equals: consider UNKNOWN_SIZE Timeout measuring file timestamp resolution after 2 seconds Fix RacyGitTests#testRacyGitDetection Change RacyGitTests to create a racy git situation in a stable way Deprecate Constants.CHARACTER_ENCODING in favor of StandardCharsets.UTF_8 Fix non-deterministic hash of archives created by ArchiveCommand Update Maven plugins ecj, plexus, error-prone Update Maven plugins and cleanup Maven warnings Make inner classes static where possible Fix API problem filters Change-Id: I238adfd3080a5fed9d64c3c757297da6ea893918 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Persist minimal racy threshold and allow manual configurationMatthias Sohn2019-08-062-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To enable persisting the minimal racy threshold per FileStore add a new config option to the user global git configuration: - Config section is "filesystem" - Config subsection is concatenation of - Java vendor (system property "java.vendor") - Java version (system property "java.version") - FileStore's name, on Windows we use the attribute volume:vsn instead since the name is not necessarily unique. - separated by '|' e.g. "AdoptOpenJDK|1.8.0_212-b03|/dev/disk1s1" The same prefix is used as for filesystem timestamp resolution, so both values are stored in the same config section - The config key for minmal racy threshold is "minRacyThreshold" as a time value, supported time units are those supported by DefaultTypedConfigGetter#getTimeUnit - measure for 3 seconds to limit runtime which depends on hardware, OS and Java version being used If the minimal racy threshold is configured for a given FileStore the configured value is used instead of measuring it. When the minimal racy threshold was measured it is persisted in the user global git configuration. Rename FileStoreAttributeCache to FileStoreAttributes since this class is now declared public in order to enable exposing all attributes in one object. Example: [filesystem "AdoptOpenJDK|11.0.3|/dev/disk1s1"] timestampResolution = 7000 nanoseconds minRacyThreshold = 3440 microseconds Change-Id: I22195e488453aae8d011b0a8e3276fe3d99deaea Signed-off-by: Matthias Sohn <matthias.sohn@sap.com> Also-By: Marc Strapetz <marc.strapetz@syntevo.com>
| | * Measure minimum racy interval to auto-configure FileSnapshotMatthias Sohn2019-08-062-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By running FileSnapshotTest#detectFileModified we found that the sum of measured filesystem timestamp resolution and measured clock resolution may yield a too small interval after a file has been modified which we need to consider racily clean. In our tests we didn't find this behavior on all systems we tested on, e.g. on MacOS using APFS and Java 8 and 11 this effect was not observed. On Linux (SLES 15, kernel 4.12.14-150.22-default) we collected the following test results using Java 8 and 11: In 23-98% of 10000 test runs (depending on filesystem type and Java version) the test failed, which means the effective interval which needs to be considered racily clean after a file was modified is larger than the measured file timestamp resolution. "delta" is the observed interval after a file has been modified but FileSnapshot did not yet detect the modification: "resolution" is the measured sum of file timestamp resolution and clock resolution seen in Java. Java version filesystem failures resolution min delta max delta 1.8.0_212-b04 btrfs 98.6% 1 ms 3.6 ms 6.6 ms 1.8.0_212-b04 ext4 82.6% 3 ms 1.1 ms 4.1 ms 1.8.0_212-b04 xfs 23.8% 4 ms 3.7 ms 3.9 ms 1.8.0_212-b04 zfs 23.1% 3 ms 4.8 ms 5.0 ms 11.0.3+7 btrfs 98.1% 3 us 0.7 ms 4.7 ms 11.0.3+7 ext4 98.1% 6 us 0.7 ms 4.7 ms 11.0.3+7 xfs 98.5% 7 us 0.1 ms 8.0 ms 11.0.3+7 zfs 98.4% 7 us 0.7 ms 5.2 ms Mac OS 1.8.0_212 APFS 0% 1 s 11.0.3+7 APFS 0% 6 us The observed delta is not distributed according to a normal gaussian distribution but rather random in the observed range between "min delta" and "max delta". Run this test after measuring file timestamp resolution in FS.FileAttributeCache to auto-configure JGit since it's unclear what mechanism is causing this effect. In FileSnapshot#isRacyClean use the maximum of the measured timestamp resolution and the measured "delta" as explained above to decide if a given FileSnapshot is to be considered racily clean. Add a 30% safety margin to ensure we are on the safe side. Change-Id: I1c8bb59f6486f174b7bbdc63072777ddbe06694d Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Reuse FileUtils to recursively delete files created by testsMatthias Sohn2019-07-261-23/+19
| | | | | | | | | | | | | | | | | | | | | Replace redundant complex implementation of recursive delete by the one in FileUtils. Change-Id: Iced1468b96c4f32381a9cf0c651b2bf6a9a9af35 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Add missing javadoc in org.eclipse.jgit.junitMatthias Sohn2019-07-242-0/+157
| | | | | | | | | | | | Change-Id: Ib709ef050bec31c87f542fb2cc977863dda93ef9 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Enhance RepeatRule to report number of failures at the endMatthias Sohn2019-07-192-3/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to enable counting how frequently a test fails if repeated add option abortOnFailure. If it is true the test aborts on the first failure. Otherwise it runs the configured number of repetitions and, if there was any failure, throws a RepeatException reporting how many of the test repetitions failed. Change-Id: Ic47de44d4a6273fddf04b9993ad989903efb40c3 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Measure filesystem timestamp resolution already in test setupMatthias Sohn2019-07-191-0/+4
| | | | | | | | | | | | | | | | | | | | | This helps to avoid some time critical tests can't prepare the test fixture intended since measuring timestamp resolution takes time. Change-Id: Ib34023e682a106070ca97e98ef16789a4dfb97b4 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Use Instant instead of milliseconds for filesystem timestamp handlingMatthias Sohn2019-07-183-12/+117
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables higher file timestamp resolution on filesystems like ext4, Mac APFS (1ns) or NTFS (100ns) providing high timestamp resolution on filesystem level. Note: - on some OSes Java 8,9 truncate milliseconds, see https://bugs.openjdk.java.net/browse/JDK-8177809, fixed in Java 10 - UnixFileAttributes truncates timestamp resolution to microseconds when converting the internal representation to FileTime exposed in the API, see https://bugs.openjdk.java.net/browse/JDK-8181493 - WindowsFileAttributes also provides only microsecond resolution Change-Id: I25ffff31a3c6f725fc345d4ddc2f26da3b88f6f2 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
| | * Make inner classes static where possibleDavid Pursehouse2019-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As reported by Error Prone: An inner class should be static unless it references members of its enclosing class. An inner class that is made non-static unnecessarily uses more memory and does not make the intent of the class clear. See https://errorprone.info/bugpattern/ClassCanBeStatic Change-Id: Ib99d120532630dba63cf400cc1c61c318286fc41 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com> (cherry picked from commit ee40efcea44bc0c9a28afe29a80c87636947484e)
* | | Merge branch 'stable-5.3' into stable-5.4Matthias Sohn2019-06-061-11/+17
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
| * | Merge branch 'stable-5.2' into stable-5.3Matthias Sohn2019-06-051-11/+17
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
| | * | Merge branch 'stable-5.1' into stable-5.2Matthias Sohn2019-06-051-11/+17
| | |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
| | | * Enhance fsTick() to use filesystem timer resolutionChristian Halstrick2019-06-051-8/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| | | * Measure file timestamp resolution used in FileSnapshotMatthias Sohn2019-05-221-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FileSnapshot.notRacyClean() assumed a worst case filesystem timestamp resolution of 2.5 sec (FAT has a resolution of 2 sec). Instead measure timestamp resolution to avoid unnecessary IO caused by false positives in detecting the racy git problem caused by finite filesystem timestamp resolution [1]. Cache the measured resolution per FileStore since timestamp resolution depends on the respective filesystem type. If timestamp resolution cannot be measured or fails due to an exception fallback to the worst case FAT timestamp resolution and avoid caching this value. Add a 10% safety margin in FileSnapshot.notRacyClean(), though running FsTest.testFsTimestampResolution() 1000 times which is not using a safety margin didn't fail on Mac using APFS and Java 8, 11, 12. Measured Java file timestamp resolution: [2] [1] https://github.com/git/git/blob/master/Documentation/technical/racy-git.txt [2] https://docs.google.com/spreadsheets/d/1imy0y6WmRqBf0kjCxzxj2X7M50eIVfa7oaUIzEOHmjo Bug: 546891 Change-Id: I493f3b57b6b306285ffa7d392339d253e5966ab8 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* | | | Convert to lambda or member referenceCarsten Hammer2019-05-161-16/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert anonymous inner classes to lambda expressions or member references Bug: 545856 CQ: 19537 Change-Id: I621431c178e8b99316314602f7c66c9a36f9ae98 Signed-off-by: Carsten Hammer <carsten.hammer@t-online.de> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* | | | Use jdk 5 for loopCarsten Hammer2019-04-131-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace simple uses of Iterator with a corresponding for-loop. Also add missing braces on loops as necessary. Change-Id: I708d82acdf194787e3353699c07244c5ac3de189 Signed-off-by: Carsten Hammer <carsten.hammer@t-online.de> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* | | | Join catch sections using multicatchCarsten Hammer2019-04-132-10/+2
| | | | | | | | | | | | | | | | | | | | Change-Id: I1a9112e6a4f938638c599b489cb0858eca27ab91 Signed-off-by: Carsten Hammer <carsten.hammer@t-online.de> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* | | | Use String.isEmpty() instead of comparing to ""Carsten Hammer2019-04-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use of String.equals("") can be replaced with with String.length() == 0 (for JDK5 and lower) or String.isEmpty() (for JDK6 and higher) Change-Id: Id1462d22c5d249485d87993263a9239809e73c55 Signed-off-by: Carsten Hammer <carsten.hammer@t-online.de> Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* | | | LocalDiskRepositoryTestCase: Clarify semantics of repository creation methodsDavid Pursehouse2019-04-081-3/+9
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | Several of the utility methods create a Repository without setting the 'autoClose' flag, which means that the caller is responsible for closing it. Update the Javadoc to explicitly mention this. Change-Id: I2410dd8d230cd4519f756c38b17141d0daa6c314 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* | | LocalDiskRepositoryTestCase#createRepository: Default auto-close to falseDavid Pursehouse2019-01-201-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since 8ed59c5 ("Make TestRepository AutoCloseable", Jan 11, 2019) the TestRepository class is auto-closeable, but instantiations of it were not converted to use try-with-resource. Converting to try-with-resource results, in several cases, in the repository being closed twice because LocalDiskRepositoryTestCase has logic to close created repositories in the tearDown method. This results in several tests emitting a warning to the console: close() called when useCnt is already zero Change the default behavior of the createRepository method to not use the auto-close logic in LocalDiskRepositoryTestCase, so that thy will instead be closed (only once) using the AutoCloseable implementation. Deprecate the method that has the autoClose parameter. Change-Id: I63d62c9913f9b61271667861dae144e551d358c1 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* | | Make TestRepository AutoCloseableJackson Toeniskoetter2019-01-101-1/+18
|/ / | | | | | | | | | | | | | | | | | | | | | | | | Currently, unit tests need to either close the Repository underlying a TestRepository manually, or not close it at all. Both are error prone. The TestRepository holds a reference to 4 AutoCloseable objects: Repository, ObjectInserter, Git, and RevWalk. The last two can escape the TestRepository scope, so they are not closed when TestRepository is closed. Change-Id: I4461bb9104d517bd6bef09c38507c7c2ef5c31d4 Signed-off-by: Jackson Toeniskoetter <jackdt@google.com>
* | Move SshTestGitServer to new bundle org.eclipse.jgit.junit.sshThomas Wolf2018-11-171-331/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create the bundle and move the SshTestGitServer there. Verified that the Eclipse build still works and ran JSchSshTest and ApacheSshTest as junit tests inside Eclipse. Update maven build and features to account for that. Verified by running full maven build including packaging. Update bazel build files to account for that. Verified by a clean-slate bazel build :all, followed by running the JSchSshTest and the ApacheSshTest via bazel. Change-Id: Ia084942f4425b454529de148e00417e7da786a90 Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* | Apache MINA sshd client: properly handle HostKeyAlgorithms configThomas Wolf2018-11-131-7/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default sshd will use its default built-in list, which matches the one of openssh (as far as the algorithms exist in sshd at all). But it doesn't handle HostKeyAlgorithms from the ssh config at all. Implement this as in openssh, including the '+' and '-' modifiers and reordering the default if there are known host keys for a server already. Add tests for the reordering. Also use a more robust reader for the known hosts file. The default aborts on the first error. Bug: 520927 Change-Id: Ib1684440bfe2e96140536aa1a93c4bd4a0d35916 Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* | Apache MINA sshd client: add gssapi-with-mic authenticationThomas Wolf2018-11-131-1/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sshd does support gssapi-with-mic on the server side, but has no built-in client-side support for this authentication mechanism. Add our own implementation for it, following RFC 4462.[1] To avoid needlessly re-trying mechanisms that aren't even configured on the client, we disable mechanisms that fail on the very first attempt to use them. Since we have no real Kerberos5 test setup, this cannot be fully tested in CI. The disabling of the authentication mechanism and that it is skipped when not successful _is_ tested. [1] https://www.ietf.org/rfc/rfc4462.txt Bug: 520927 Change-Id: I5d0cdb14103588a57c52f927df541b589ab88d88 Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* | Add more ssh tests: pushing, known_host file handling, etc.Thomas Wolf2018-11-131-7/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for git-receive-pack to the ssh git server and add two new tests for pushing. This actually uncovered an undocumented requirement in TransportSftp: the FTP rename operation assumes POSIX semantics, i.e., that the target is removed. This works as written only for servers that support and advertise the "posix-rename@openssh.com" FTP extension. Our little Apache MINA server does not advertise this extension. Fix the FtpChannel implementation for Jsch to handle this case in a meaningful way so that it can pass the new "push over sftp" test. Add more tests to test the behavior of server host key checking. Also refactor the tests generally to separate better the test framework from the actual tests. Bug: 520927 Change-Id: Ia4bb85e17ddacde7b36ee8c2d5d454bbfa66dfc3 Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* | Ssh tests with an Apache MINA sshd test git serverThomas Wolf2018-11-061-0/+217
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a simple ssh git server based on Apache MINA sshd, and use it in new tests that verify ssh operations and in particular a number of bugs that had cropped up over time in JSch. The git server supports fetching only, and sftp access. The tests are all in an abstract base class; the concrete JschSshTest class only provides ssh-specific test setup. So the same tests could be run easily also with some other ssh client. Bug: 520927 Change-Id: Ide6687b717fb497a29fc83f22b07390a26dfce1d Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
* | Make inner classes static where possibleDavid Pursehouse2018-09-261-1/+1
|/ | | | | | | | | | | | | As reported by Error Prone: An inner class should be static unless it references members of its enclosing class. An inner class that is made non-static unnecessarily uses more memory and does not make the intent of the class clear. See https://errorprone.info/bugpattern/ClassCanBeStatic Change-Id: Ib99d120532630dba63cf400cc1c61c318286fc41 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* Deprecate Constants.CHARSET in favor of StandardCharsets.UTF_8David Pursehouse2018-09-044-9/+9
| | | | | Change-Id: I3b748620f067582afef20f144feebe40d0332be2 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* Return parsed objects from TestRepository.commit/tree/blob()Terry Parker2018-06-281-12/+13
| | | | | | | | | | | | | It is convenient for TestRepository to return fully parsed objects from its commit()/tree()/blob() methods, so that test code doesn't have to remember to parse them before making assertions about them. Update TestRepostiory to return fully parsed objects. Adjust the tests that are affected by this change in behavior. Change-Id: I09d03d0c80ad22cb7092f4a2eaed99d40a10af63 Signed-off-by: Terry Parker <tparker@google.com>
* Fix trivial usages of deprecated Repository#getAllRefsDavid Pursehouse2018-05-231-3/+3
| | | | | | | | | | | | Callers of getAllRefs that only iterate over the `values()` of the returned map can be trivially fixed to call getRefDatabase().getRefs() instead. Only fix those where the calling method is already declared to throw IOException, to avoid potential API changes. Change-Id: I2b05f785077a1713953cfd42df7bf915f889f90b Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* Remove further unnecessary 'final' keywordsHan-Wen Nienhuys2018-05-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove it from * package private functions. * try blocks * for loops this was done with the following python script: $ cat f.py import sys import re import os def replaceFinal(m): return m.group(1) + "(" + m.group(2).replace('final ', '') + ")" methodDecl = re.compile(r"^([\t ]*[a-zA-Z_ ]+)\(([^)]*)\)") def subst(fn): input = open(fn) os.rename(fn, fn + "~") dest = open(fn, 'w') for l in input: l = methodDecl.sub(replaceFinal, l) dest.write(l) dest.close() for root, dirs, files in os.walk(".", topdown=False): for f in files: if not f.endswith('.java'): continue full = os.path.join(root, f) print full subst(full) Change-Id: If533a75a417594fc893e7c669d2c1f0f6caeb7ca Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
* Remove 'final' in parameter listsHan-Wen Nienhuys2018-05-156-36/+36
| | | | | Change-Id: Id924f79c8b2c720297ebc49bf9c5d4ddd6d52547 Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
* Open auto-closeable resources in try-with-resourceDavid Pursehouse2018-03-131-19/+14
| | | | | | | | | | | | | | | | | | | | When an auto-closeable resources is not opened in try-with-resource, the warning "should be managed by try-with-resource" is emitted by Eclipse. Fix the ones that can be silenced simply by moving the declaration of the variable into a try-with-resource. In cases where we explicitly call the close() method, for example in tests where we are testing specific behavior caused by the close(), suppress the warning. Leave the ones that will require more significant refcactoring to fix. They can be done in separate commits that can be reviewed and tested in isolation. Change-Id: I9682cd20fb15167d3c7f9027cecdc82bc50b83c4 Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 19:49:38 +0000