github/jgit - jgit - 帆软第三方插件仓库

Author	SHA1	Message	Date
Shawn O. Pearce	14da6e0b9d	debug-diff-algorithms: Real world performance test implementations When working on a difference algorithm's implementation, its generally more important to care about how it behaves on real-world inputs than it does on fake inputs created for unit test cases. Run each implementation against a number of real-world repositories, looking at changes between files in each commit. This gives a better picture of how a particular algorithm performs. This test suite run against JGit and linux-2.6 with the current available algorithms shows HistogramDiff always out-performs MyersDiff, and by a wide margin on the linux-2.6 sources. As HistogramDiff has similar output properties as PatienceDiff, the resulting edits are probably also more human-readable. These test results show that HistogramDiff is a good choice for the default implementation, and also show that PatienceDiff isn't worth keeping. jgit: start at baa83ae 2686 files, 760 commits N= 3 min lines, 3016 max lines Algorithm Time(ns) ( Time(ns) on Time(ns) on ) ( N=3 N=3016 ) --------------------------------------------------------------------- histogram_myers 314652100 ( 3900 298100 ) histogram 315973000 ( 3800 302100 ) patience 774724900 ( 4500 347900 ) patience_histogram_myers 786332800 ( 3700 351200 ) myers 819359300 ( 4100 379100 ) patience_myers 843416700 ( 3800 348000 ) linux-2.6.git: start at 85a3318 4001 files, 2680 commits N= 2 min lines, 39098 max lines Algorithm Time(ns) ( Time(ns) on Time(ns) on ) ( N=2 N=39098 ) --------------------------------------------------------------------- histogram_myers 1229870000 ( 5900 2642700 ) histogram 1235654100 ( 6000 2695400 ) patience 3856546000 ( 5900 2627700 ) patience_histogram_myers 3866728100 ( 7000 2624000 ) patience_myers 4004875300 ( 8000 2651700 ) myers 9794679000 ( 7200 2716200 ) Change-Id: I2502684d31f7851e720356820d04d8cf767f7229 Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	14 years ago
Shawn O. Pearce	af3fbb13f6	debug-text-hashfunctions: Test suite for content hashes This is the test suite I was using to help understand why we had such a high collision rate with RawTextComparator, and to select a replacement function. Since its not something we will run very often, lets make it a program in the debug package rather than a JUnit test. This way we can run it on demand against any corpus of files we choose, but we aren't bottlenecking our daily builds running tests with no assertions. Adding a new hash function to this suite is simple, just define a new instance member of type "Hash" with the logic applied to the region passed in. Change-Id: Iec0b176adb464cf95b06cda157932b79c0b59886 Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	14 years ago
Shawn O. Pearce	074055d747	debug-show-packdelta: Dump a pack delta to the console This is a horribly crude application, it doesn't even verify that the object its dumping is delta encoded. Its method of getting the delta is pretty abusive to the public PackWriter API, because right now we don't want to expose the real internal low-level methods actually required to do this. Change-Id: I437a17ceb98708b5603a2061126eb251e82f4ed4 Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	15 years ago
Christian Halstrick	a54e0bae68	Add commit command to the pgm package The commit command is added using the new Git class. Currently this supports only the author and commit-message option. Change-Id: I13152575b5b03f6f9e816d0747e7a8c5c6fccade Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>	15 years ago
Shawn O. Pearce	1e48c338dc	Generate an Eclipse IP log with jgit eclipse-iplog The new plugin contains the bulk of the logic to scan a Git repository, and query IPZilla, in order to produce an XML formatted IP log for the requested revision of any Git based project. This plugin is suitable for embedding into a servlet container, or into the Eclipse workbench. The command line pgm package knows how to invoke this plugin through the eclipse-iplog subcommand, permitting storage of the resulting log as a local XML file. Change-Id: If01d9d98d07096db6980292bd5f91618c55d00be Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	15 years ago
Shawn O. Pearce	5b89088f87	Switch pgm, test to proper plugin projects This way we depend upon the MANIFEST.MF to define our classpath and our build will act more like any other OSGI bundle build. Change-Id: I9e1f1f5a0bccb0ab0e39e49b75fb400fea446619 Signed-off-by: Shawn O. Pearce <spearce@spearce.org>	15 years ago