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path: root/src/main/java/com/google/devtools/build/lib/vfs/FileSystem.java
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* Refactor all ctor callsites of PathFragment to instead call a static ↵Gravatar nharmata2017-04-05
| | | | | | | | | | | | 'create' method. This paves the way for changing PathFragment to e.g. an abstract class with multiple subclasses. This way we can split out the windows-specific stuff into one of these concrete classes, making the code more readable and also saving memory (since the shallow heap size of the NonWindowsPathFragment subclass will hopefully be smaller than that of the current PathFragment). This also lets us pursue gc churn optimizations. We can now do interning in PathFragment#create and can also get rid of unnecessary intermediate PathFragment allocations. RELNOTES: None PiperOrigin-RevId: 152145768
* Restructure Path#getCachedChildPath to make direct method calls without ↵Gravatar nharmata2017-04-04
| | | | | | | | allocating a garbage TranslatedPath object. RELNOTES: None PiperOrigin-RevId: 152130170
* Move FileAccessException to the vfs packageGravatar Ulf Adams2017-02-17
| | | | | | | | | | | | | | It was previously in unix, but also used from non-unix file systems, which means it's not actually unix-specific. This is in preparation for splitting compilation of the unix and windows file systems into separate libraries. That improves layering and reduces compile times - note that Bazel already injects the vfs into its lower layers, which should only rely on the normal vfs APIs, not on anything platform-specific. -- PiperOrigin-RevId: 147829659 MOS_MIGRATED_REVID=147829659
* Replace UnixGlob's package glob prefetching functionality with anGravatar Googler2016-12-02
| | | | | | | | optional method in FileSystem. Custom FileSystem implementations can use this to provide their own implementation of glob prefetching. -- MOS_MIGRATED_REVID=140736304
* Adding an option to set the digest function that everything uses. Minor ↵Gravatar Ola Rozenfeld2016-11-18
| | | | | | | | | | | | | refactoring: enabling potential fast digest computation of more than one digest function type. Usage: bazel --host_jvm_args="-Dbazel.DigestFunction=SHA1" build ... Ugliness: using a system property (a static non-final variable), because the better way to do it (a flag) would result in a much, much larger refactoring. More ugliness: I have updated the minimal amount of tests. A lot of tests are still relying on the default value of MD5. Ideally, they need to be updated as well. -- MOS_MIGRATED_REVID=139490836
* VFS: implement a Windows-specific Path subclassGravatar Laszlo Csomor2016-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change rolls forward commit e0d7a540e3c615c628f63fcaaaba0c47fca2cb25 and commit 8bb4299b28de14eed9d3b57bcaeb9350c81c7db3, and adds a bugfix: - FileSystem.PathFactory got a new translatePath method that WindowsFileSystem.PathFactory overrides to translate absolute Unix paths to MSYS-relative paths - Path.getCachedChildPath calls this translatePath method so the child path is registered with the correct (translated) parent and under the correct name (e.g. "C:" instead of say "c") Below is the rest of the original change description: The new subclass WindowsFileSystem.WindowsPath is aware of Windows drives. This change: - introduces a new factory for Path objects so FileSystems can return a custom implementation that instantiates filesystem-specific Paths - implements the WindowsPath subclass of Path that is aware of Windows drives - introduces the bazel.windows_unix_root JVM argument that defines the MSYS root, which defines the absolute Windows path that is the root of all Unix paths that Bazel creates (e.g. "/usr/lib" -> "C:/tools/msys64/usr/lib") except if the path is of the form "/c/foo" which is treated as "C:/foo" - removes all Windows-specific logic from Path PathFragment is still aware of drive letters and it has to remain so because it is unaware of file systems. WindowsPath restricts the allowed path strings to absolute Unix paths where the first segment, if any, is a volume specifier. From now on if Bazel attempts to create a WindowsPath from an absolute Unix path, Bazel will make it relative to WindowsPath.UNIX_ROOT, unless the first component is a single-letter name (e.g. "/c/foo" which is "C:/foo"). Subclassing Path is necessary because a Unix-style absolute path doesn't sufficiently define a full Windows path, as it may be relative to any drive. Fixes https://github.com/bazelbuild/bazel/issues/1463 -- MOS_MIGRATED_REVID=137149483
* Rollback of commit e0d7a540e3c615c628f63fcaaaba0c47fca2cb25.Gravatar Philipp Wollermann2016-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *** Reason for rollback *** Suspected root cause for Windows bootstrap on Bazel CI breakage: java.lang.NullPointerException at com.google.devtools.build.lib.vfs.Path$1.run(Path.java:123) http://ci.bazel.io/view/Bazel%20bootstrap%20and%20maintenance/job/Bazel/922/JAVA_VERSION=1.8,PLATFORM_NAME=windows-x86_64/console *** Original change description *** VFS: implement a Windows-specific Path subclass The new subclass WindowsFileSystem.WindowsPath is aware of Windows drives. This change: - introduces a new factory for Path objects so FileSystems can return a custom implementation that instantiates filesystem-specific Paths - implements the WindowsPath subclass of Path that is aware of Windows drives - introduces the bazel.windows_unix_root JVM argument that defines the MSYS root, which defines the absolute Windows path that is the... *** -- MOS_MIGRATED_REVID=136583352
* VFS: implement a Windows-specific Path subclassGravatar Laszlo Csomor2016-10-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new subclass WindowsFileSystem.WindowsPath is aware of Windows drives. This change: - introduces a new factory for Path objects so FileSystems can return a custom implementation that instantiates filesystem-specific Paths - implements the WindowsPath subclass of Path that is aware of Windows drives - introduces the bazel.windows_unix_root JVM argument that defines the MSYS root, which defines the absolute Windows path that is the root of all Unix paths that Bazel creates (e.g. "/usr/lib" -> "C:/tools/msys64/usr/lib") except if the path is of the form "/c/foo" which is treated as "C:/foo" - removes all Windows-specific logic from Path PathFragment is still aware of drive letters and it has to remain so because it is unaware of file systems. WindowsPath restricts the allowed path strings to absolute Unix paths where the first segment, if any, is a volume specifier. From now on if Bazel attempts to create a WindowsPath from an absolute Unix path, Bazel will make it relative to WindowsPath.UNIX_ROOT, unless the first component is a single-letter name (e.g. "/c/foo" which is "C:/foo"). Subclassing Path is necessary because a Unix-style absolute path doesn't sufficiently define a full Windows path, as it may be relative to any drive. Fixes https://github.com/bazelbuild/bazel/issues/1463 -- MOS_MIGRATED_REVID=136350304
* Exporting functions to compute SHA1 digests of files.Gravatar Ola Rozenfeld2016-09-12
| | | | | | | | TODO: need to stich them all the way through various ActionInputFileCache implementations! -- MOS_MIGRATED_REVID=132685408
* Fixed the issue that hard links are handled improperly when bazel ↵Gravatar Googler2016-09-08
| | | | | | | | | decompresses tarballs. Issue link: https://github.com/bazelbuild/bazel/issues/574 -- MOS_MIGRATED_REVID=132434278
* Support case-insensitive comparision in Path.java with WindowsFileSystemGravatar Yun Peng2016-05-09
| | | | | | | | Since file path is case-insensitive on Windows, we need to support this. Also fixed .d file inclusions check in CppCompileAction.java on Windows -- MOS_MIGRATED_REVID=121823250
* Make local_repository and new_local_repository work with the limitations of ↵Gravatar Lukacs Berki2016-01-26
| | | | | | | our plans for symlink support on Windows. -- MOS_MIGRATED_REVID=113043269
* Close some streams that we didn'tGravatar Miguel Alcon Pinto2015-11-05
| | | | | -- MOS_MIGRATED_REVID=107048547
* Introduce Path#isSpecialFile, FileSystem#isSpecialFile, and ↵Gravatar Nathan Harmata2015-10-21
| | | | | | | FileStatus#isSpecialFile to help disambiguate between a regular file and a special file, since the file size of a special file cannot be trusted. -- MOS_MIGRATED_REVID=105903622
* Rationalize copyright headersGravatar Damien Martin-Guillerez2015-09-25
| | | | | | | | | | | The headers were modified with `find . -type f -exec 'sed' '-Ei' 's|Copyright 201([45]) Google|Copyright 201\1 The Bazel Authors|' '{}' ';'` And manual edit for not Google owned copyright. Because of the nature of ijar, I did not modified the header of file owned by Alan Donovan. The list of authors were extracted from the git log. It is missing older Google contributors that can be added on-demand. -- MOS_MIGRATED_REVID=103938715
* Introduce Path#readSymbolicLinkUnchecked, intended to only be used when the ↵Gravatar Nathan Harmata2015-09-17
| | | | | | | caller already knows the path is a symlink, and use this new method throughout the codebase. -- MOS_MIGRATED_REVID=103229983
* Remove unused 'followSymlinks' parameter to FileSystem#getxattr. It is ↵Gravatar Nathan Harmata2015-09-16
| | | | | | | always true in practice. -- MOS_MIGRATED_REVID=103221081
* Minor FileSystem refactoring.Gravatar Eric Fellheimer2015-06-03
| | | | | -- MOS_MIGRATED_REVID=95054907
* Slight refactoring of readdir().Gravatar Eric Fellheimer2015-06-03
| | | | | -- MOS_MIGRATED_REVID=95036998
* Some cleanup changes.Gravatar Ulf Adams2015-03-05
| | | | | -- MOS_MIGRATED_REVID=87821306
* Update from Google.Gravatar Han-Wen Nienhuys2015-02-25
-- MOE_MIGRATED_REVID=85702957
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