opener: check hardlink count reporting (issue1866) The Linux CIFS kernel driver (even in 2.6.36) suffers from a hardlink count blindness bug (lstat() returning 1 in st_nlink when it is expected to return >1), which causes repository corruption if Mercurial running on Linux pushes or commits to a hardlinked repository stored on a Windows share, if that share is mounted using the CIFS driver. This patch works around issue1866 and improves the workaround done in 50523b4407f6 to fix issue761, by teaching the opener to lazily execute a runtime check (new function checknlink) to see if the hardlink count reported by nlinks() can be trusted. Since nlinks() is also known to return varying count values (1 or >1) depending on whether the file is open or not and depending on what client and server software combination is being used for accessing and serving the Windows share, we deliberately open the file before calling nlinks() in order to have a stable precondition. Trying to depend on the precondition "file closed" would be fragile, as the file could have been opened very easily somewhere else in the program.

util: refactor opener - Don't call atomictempfile or nlinks() if the path is malformed (no basename). Let posixfile() raise IOError directly. - atomictempfile already breaks up hardlinks, no need to poke at the file with nlinks() if atomictemp. - No need to copy the file contents to break hardlinks for 'w'rite modes (w, wb, w+, w+b). Unlinking and recreating the file is faster.

revset: remove unnecessary debug statement

revset: fix p1, p2 and parents in dirstate case (a5f7f1e9340e) - Handle 'subset' argument - Stop returning the null rev from p1 and parents, as in the non-dirstate case - Order parents as in the non-dirstate case (ascending revs)

tests: handle .t files without trailing LF 9a2de8dae27b made this simple test-test.t succeed silently: $ printf ' $ true' > test-test.t but did not give a usable .err in this case: $ printf ' $ false' > test-test.t The missing LF will now be fixed in the test output and it will thus give a test failure and a solution in the .err file.

merge with stable

alias: fall back to normal error handling for ambigious commands (fixes issue2475)

merge with stable

subrepo: test & fix svn subrepo removal

revsets: let parents() return parents of working dir This patch makes the 'set' argument to revset function parents() optional. Like p1() and p2(), if no argument is given, returns the parent(s) of the working directory. Morally equivalent to 'p1()+p2()', as expected.

revsets: let p1() and p2() return parents of working dir This patch makes the 'set' argument to revset functions p1() and p2() optional. If no argument is given, p1() and p2() return the first or second parent of the working directory. If the working directory is not an in-progress merge (no 2nd parent), p2() returns the empty set. For a checkout of the null changeset, both p1() and p2() return the empty set.

util: refactor opener - Don't call atomictempfile or nlinks() if the path is malformed (no basename). Let posixfile() raise IOError directly. - atomictempfile already breaks up hardlinks, no need to poke at the file with nlinks() if atomictemp. - No need to copy the file contents to break hardlinks for 'w'rite modes (w, wb, w+, w+b). Unlinking and recreating the file is faster.

keyword: turn regexes and escaped keywords into a propertycache

commands: add revset support to most commands

convert: better ReST markup in docstring

convert: split docstring lists for easier translation

convert: use field list instead of option list in help Use field list instead of option list in convert help, because the option list format used, with defaults and type of argument is not supported by docutils.

doc/Makefile: docs now also depend on extensions After 0d09991f91ee the hg(1) manpage contains a section with help extracted from the extensions, so we should depend on them too.

keyword: function to look up changectx for expansion Similarly rename variable in kwtemplater.overwrite().

localrepo: make heads use the keyword args of the sorted builtin

import: add another line feed to message join string Changeset descriptions are not guaranteed to have a trailing carriage return.

tests: unify test-no-symlinks

patch: remove unused applydiff() sourcefile argument

patch: remove unused gitworkdone variable from iterhunks()

test-import: use printf instead of echo

import: --no-commit should update .hg/last-message.txt The patch parser goes through all of that trouble extracting the commit message from the patch file. It seems such a waste not to use it.

merge with stable after 1.7 release

Added signature for changeset 333421b9e0f9

Added tag 1.7 for changeset 333421b9e0f9

merge with i18n

i18n-pt_BR: synchronized with b19b4c1df066

dirstate: skip optimization on case-folding FS (issue2440)