Mercurial > hg
view tests/test-unified-test.t @ 27430:e240e914d226 stable
revlog: seek to end of file before writing (issue4943)
Revlogs were recently refactored to open file handles in "a+" and use a
persistent file handle for reading and writing. This drastically
reduced the number of file handles being opened.
Unfortunately, it appears that some versions of Solaris lose the file
offset when performing a write after the handle has been seeked.
The simplest workaround is to seek to EOF on files opened in a+ mode
before writing to them, which is what this patch does.
Ideally, this code would exist in the vfs layer. However, this would
require creating a proxy class for file objects in order to provide a
custom implementation of write(). This would add overhead. Since
revlogs are the only files we open in a+ mode, the one-off workaround
in revlog.py should be sufficient.
This patch appears to have little to no impact on performance on my
Linux machine.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 17 Dec 2015 17:16:02 -0800 |
parents | 4d2b9b304ad0 |
children | 6a98f9408a50 |
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Test that the syntax of "unified tests" is properly processed ============================================================== Simple commands: $ echo foo foo $ printf 'oh no' oh no (no-eol) $ printf 'bar\nbaz\n' | cat bar baz Multi-line command: $ foo() { > echo bar > } $ foo bar Return codes before inline python: $ sh -c 'exit 1' [1] Doctest commands: >>> print 'foo' foo $ echo interleaved interleaved >>> for c in 'xyz': ... print c x y z >>> print >>> foo = 'global name' >>> def func(): ... print foo, 'should be visible in func()' >>> func() global name should be visible in func() >>> print '''multiline ... string''' multiline string Regular expressions: $ echo foobarbaz foobar.* (re) $ echo barbazquux .*quux.* (re) Globs: $ printf '* \\foobarbaz {10}\n' \* \\fo?bar* {10} (glob) Literal match ending in " (re)": $ echo 'foo (re)' foo (re) Windows: \r\n is handled like \n and can be escaped: #if windows $ printf 'crlf\r\ncr\r\tcrlf\r\ncrlf\r\n' crlf cr\r (no-eol) (esc) \tcrlf (esc) crlf\r (esc) #endif Combining esc with other markups - and handling lines ending with \r instead of \n: $ printf 'foo/bar\r' fo?/bar\r (no-eol) (glob) (esc) #if windows $ printf 'foo\\bar\r' foo/bar\r (no-eol) (glob) (esc) #endif $ printf 'foo/bar\rfoo/bar\r' foo.bar\r \(no-eol\) (re) (esc) foo.bar\r \(no-eol\) (re) testing hghave $ hghave true $ hghave false skipped: missing feature: nail clipper [1] $ hghave no-true skipped: system supports yak shaving [1] $ hghave no-false Conditional sections based on hghave: #if true $ echo tested tested #else $ echo skipped #endif #if false $ echo skipped #else $ echo tested tested #endif #if no-false $ echo tested tested #else $ echo skipped #endif #if no-true $ echo skipped #else $ echo tested tested #endif Exit code: $ (exit 1) [1]