##// END OF EJS Templates
upstream » mercurial-mirror
RSS

Clone from https://www.mercurial-scm.org/repo/hg-all

worker: Use buffered input from the pickle stream...
worker: Use buffered input from the pickle stream On Python 3, "pickle.load" will raise an exception ("_pickle.UnpicklingError: pickle data was truncated") when it gets a short read, i.e. it receives fewer bytes than it requested. On our build machine, Mercurial seems to frequently hit this problem while updating a mozilla-central clone iff it gets scheduled in batch mode. It is easy to trigger with: #wipe the workdir rm -rf * hg update null chrt -b 0 hg update default I've also written the following program, which demonstrates the core problem: from __future__ import print_function import io import os import pickle import time obj = {"a": 1, "b": 2} obj_data = pickle.dumps(obj) assert len(obj_data) > 10 rfd, wfd = os.pipe() pid = os.fork() if pid == 0: os.close(rfd) for _ in range(4): time.sleep(0.5) print("First write") os.write(wfd, obj_data[:10]) time.sleep(0.5) print("Second write") os.write(wfd, obj_data[10:]) os._exit(0) try: os.close(wfd) rfile = os.fdopen(rfd, "rb", 0) print("Reading") while True: try: obj_copy = pickle.load(rfile) assert obj == obj_copy except EOFError: break print("Success") finally: os.kill(pid, 15) The program reliably fails with Python 3.8 and succeeds with Python 2.7. Providing the unpickler with a buffered reader fixes the issue, so let "os.fdopen" create one. https://bugzilla.mozilla.org/show_bug.cgi?id=1604486 Differential Revision: https://phab.mercurial-scm.org/D8051
Thomas Arendsen Hein - - Load All Authors

File last commit:

r5081:ea7b982b default
r44718:cb52e619 stable
Show More
hg-menu.vim
93 lines | 3.5 KiB | text/x-vim | VimLexer
/ contrib / vim / hg-menu.vim
History | Annotation | Raw |Copy content |Copy permalink
" vim600: set foldmethod=marker:
" =============================================================================
" Name Of File: hg-menu.vim
" Description: Interface to Mercurial Version Control.
" Author: Steve Borho (modified Jeff Lanzarotta's RCS script)
" Date: Wednesday, October 5, 2005
" Version: 0.1.0
" Copyright: None.
" Usage: These command and gui menu displays useful hg functions
" Configuration: Your hg executable must be in your path.
" =============================================================================
" Section: Init {{{1
if exists("loaded_hg_menu")
finish
endif
let loaded_hg_menu = 1
" Section: Menu Options {{{1
if has("gui")
" amenu H&G.Commit\ File<Tab>,ci :!hg commit %<CR>:e!<CR>
" amenu H&G.Commit\ All<Tab>,call :!hg commit<CR>:e!<CR>
" amenu H&G.-SEP1- <nul>
amenu H&G.Add<Tab>\\add :!hg add %<CR><CR>
amenu H&G.Forget\ Add<Tab>\\fgt :!hg forget %<CR><CR>
amenu H&G.Show\ Differences<Tab>\\diff :call ShowResults("FileDiff", "hg\ diff")<CR><CR>
amenu H&G.Revert\ to\ Last\ Version<Tab>\\revert :!hg revert %<CR>:e!<CR>
amenu H&G.Show\ History<Tab>\\log :call ShowResults("FileLog", "hg\ log")<CR><CR>
amenu H&G.Annotate<Tab>\\an :call ShowResults("annotate", "hg\ annotate")<CR><CR>
amenu H&G.-SEP1- <nul>
amenu H&G.Repo\ Status<Tab>\\stat :call ShowResults("RepoStatus", "hg\ status")<CR><CR>
amenu H&G.Pull<Tab>\\pull :!hg pull<CR>:e!<CR>
amenu H&G.Update<Tab>\\upd :!hg update<CR>:e!<CR>
endif
" Section: Mappings {{{1
if(v:version >= 600)
" The default Leader is \ 'backslash'
map <Leader>add :!hg add %<CR><CR>
map <Leader>fgt :!hg forget %<CR><CR>
map <Leader>diff :call ShowResults("FileDiff", "hg\ diff")<CR><CR>
map <Leader>revert :!hg revert %<CR>:e!<CR>
map <Leader>log :call ShowResults("FileLog", "hg\ log")<CR><CR>
map <Leader>an :call ShowResults("annotate", "hg\ annotate")<CR><CR>
map <Leader>stat :call ShowResults("RepoStatus", "hg\ status")<CR><CR>
map <Leader>upd :!hg update<CR>:e!<CR>
map <Leader>pull :!hg pull<CR>:e!<CR>
else
" pre 6.0, the default Leader was a comma
map ,add :!hg add %<CR><CR>
map ,fgt :!hg forget %<CR><CR>
map ,diff :call ShowResults("FileDiff", "hg\ diff")<CR><CR>
map ,revert :!hg revert<CR>:e!<CR>
map ,log :call ShowResults("FileLog", "hg\ log")<CR><CR>
map ,an :call ShowResults("annotate", "hg\ annotate")<CR><CR>
map ,stat :call ShowResults("RepoStatus", "hg\ status")<CR><CR>
map ,upd :!hg update<CR>:e!<CR>
map ,pull :!hg pull<CR>:e!<CR>
endif
" Section: Functions {{{1
" Show the log results of the current file with a revision control system.
function! ShowResults(bufferName, cmdName)
" Modify the shortmess option:
" A don't give the "ATTENTION" message when an existing swap file is
" found.
set shortmess+=A
" Get the name of the current buffer.
let currentBuffer = bufname("%")
" If a buffer with the name rlog exists, delete it.
if bufexists(a:bufferName)
execute 'bd! ' a:bufferName
endif
" Create a new buffer.
execute 'new ' a:bufferName
" Execute the command.
execute 'r!' a:cmdName ' ' currentBuffer
" Make is so that the file can't be edited.
setlocal nomodified
setlocal nomodifiable
setlocal readonly
" Go to the beginning of the buffer.
execute "normal 1G"
" Restore the shortmess option.
set shortmess-=A
endfunction