This script does a bunch of non-trivial configuration work: in particular, it
sets up an isolated instance of Watchman which isn't affected by global state
and can be torn down on completion.
This script also sets the HGFSMONITOR_TESTS environment variable, which hghave
will use in the next patch to allow gating on whether fsmonitor is enabled.
With fsmonitor enabled, there appear to be a number of failures in the test
suite. It's not yet clear to me why they're happening, but if someone would
like to jump in and fix some of them I hope this will be helpful for that.
The 'srvheads' list contains all server heads including the common ones. We
adjust 'ui.log' message to provide more useful information about server heads
locally unknown. The performance impact of turning the list to set is
negligible (about 1e-4s) compared to the rest of the discovery cost, so I'm
taking the easy path.
gitweb was missing the hint hover box. So that was added.
Also, the positioning of the form was absolute and it didn't
vertically align on all pages. The element has been moved inline
with the navigation links (which now are contained in a div) and
flexbox is used to obtain sane alignment of the navigation links
and search form. For those new to flexbox,
"justify-content: space-between" basically says to maximize space
elements. You can use it to easily get left and right justified
containers without having to worry about width, floating, etc.
"align-items: center" centers all items in a cross-axis. I've
literally wasted hours trying to figure out both these problems
before flexbox. Flexbox is amazing.
Flexbox has been supported by Chrome and Firefox for a few years.
But it is only supported by IE 11. I'm willing to wager that
people using this either won't be using IE or will be using IE 11.
So I'm willing to be a bit aggressive in adopting flexbox because
it makes CSS alignment so much easier.
Paper has it on all pages. Not sure why gitweb doesn't. I think it
should be everywhere because it is a useful feature.
Also, we weren't consistently adding the HTML in the same place. This
was OK since the element is absolutely positioned. But this bothered
me a bit, so I went ahead and fixed it.
AFAICT this was mostly a bunch of copy pasta. The only variation is
some pages defined a "value" attribute. The "query" variable will
just be empty on pages that don't accept it. So let's consolidate
the template and remove the redundancy.
The previous code was trying to load the extension from /tmp/hgtests.xxx/...,
but the actual path for tests is C:\Users\...\Temp\hgtests.xxx\... I assume
that the former is an MSYS path that maps somewhere under C:\MinGW.
Before this patch, workingctx.status() may cause writing outdated
dirstate out, if:
- .hg/dirstate is changed simultaneously after last loading it,
- there is any file, which should be dirstate.normal()-ed
Typical issue case is:
- the working directory is updated by "hg update"
- .hg/dirstate is updated in background (e.g. fsmonitor)
This patch compares identities of dirstate before and after
acquisition of wlock, and avoids writing outdated dirstate out, if
change of .hg/dirstate is detected.
Fortunately, "&&" is treated as "execute next, if previous doesn't
fail" both on POSIX and Windows. But keeping portability of
"dirstaterace.command" manually is troublesome.
This patch factors external procedures out as a shell script for
portability. "sh SCRIPT" always allows scripting in POSIX style.
This change is also for convenience. Fixed script name can reduce
command line arguments.
"r" prefix is needed for "sh '$TESTTMP/dirstaterace.sh'", because
$TESTTMP contains backslash on Windows.
This identity is used to examine whether dirstate is simultaneously
changed in storage after previous caching (see issue5584 for detail).
util.cachestat can't be used for this purpose, because it has no
valuable information on Windows.
On the other hand, util.filestat can detect changing dirstate in
storage certainly, regardless of platforms.
https://www.mercurial-scm.org/wiki/ExactCacheValidationPlan
Strictly speaking, if underlying filesystem doesn't support
ctime/mtime, util.filestat can't detect simultaneous changing in
storage as expected. But simultaneous changing on such (very rare)
platform can't be detected regardless of this patch series.
Therefore, util.filestat should be reasonable identity for almost all
usecases.
In order to fix issue5418, 0d920bcb0fd1 made vfs.rename(checkambig=True)
omit advancing mtime of renamed file, if renamed file is owned by
another (EPERM is raised in this case).
But this omission causes rewinding mtime at restoration in such
situation, and makes avoiding file stat ambiguity difficult, because
ExactCacheValidationPlan assumes that mtime should be advanced, if a
file is changed in same ctime.
https://www.mercurial-scm.org/wiki/ExactCacheValidationPlan
Ambiguity of file stat also requires issue5584 to be fixed with other
than file stat, but "hash of file", "generation ID" and so on were
already rejected ideas (please see original RFC linked from "Outline
of issue" in ExactCacheValidationPlan page).
This omission occurs:
- only for non append-only files (dirstate, bookmarks, and phaseroots), and
- only if previous transaction is rollbacked by another user
The latter means "sharing a repository clone via group permission".
This is reasonable usecase, but not ordinary for many users, IMHO.
"hg rollback" itself has been deprecated since Mercurial 2.7, too.
Therefore, increasing the cost at rollbacking previous transaction
executed by another a little seems reasonable, for avoidance of file
stat ambiguity.
This patch does:
- create copy of (already renamed) source file, if advancing mtime
fails for EPERM
- rename from copied file to destination file, and
- advance mtime of renamed file, which is now owned by current user
This patch also factors "self.join(src)" out to reduce redundancy.
This seems like a prudent thing to do. As the inline comment says,
we may want to make this abort once the functionality is stabilized
as part of `hg bundle`. Let's save that debate for another day.
Previously, a repo containing secret changesets would be served via
stream clone, transferring those secret changesets. While secret
changesets aren't meant to imply strong security (if you really
want to keep them secret, others shouldn't have read access to the
repo), we should at least make an effort to protect secret changesets
when possible.
After this commit, we no longer serve stream clones for repos
containing secret changesets by default. This is backwards
incompatible behavior. In case anyone is relying on the behavior,
we provide a config option to opt into the old behavior.
Note that this defense is only beneficial for remote repos
accessed via the wire protocol: if a client has access to the
files backing a repo, they can get to the raw data and see secret
revisions.
For builds that run on hermetic environments, it's possible that the "less"
package is not installed by default, yet it's needed for tests to pass after
revision ca1519568a93 (which sets less as the fallback pager).
The contrib/zsh_completion file itself says to name it _hg.
With a name like `hg`, if the user has a line like `autoload ${^fpath}/*(N-.:t)`
in their zshrc, it will create a shell function named `hg` that will hide the
actual hg command and make hg unusable.
Separately from that though, the underscore prefix makes it actually work. The
zsh man page states:
The convention for autoloaded functions used in completion is that they
start with an underscore
This does not seem to just be a "convention", though. With the ill-advised line
removed from my zshrc and the file named
`/usr/local/share/zsh/site-functions/hg` (without the underscore), these
completions did not seem to get loaded and the ones from the zsh installation
were loaded instead. If I renamed them to be
`/usr/local/share/zsh/site-functions/_hg`, however, they were loaded.
I manually tested the above statement by starting a new zsh instance with the
file in `/usr/local/share/zsh/site-functions` with the following names:
- As `hg`, `which _hg_labels` did not show anything
- As `_hg`, `which _hg_labels` showed the expected function.
To quote `man 1 pkgbuild`:
--filter filter-expression
By default, --root will include the entire contents of the
given root-path in the package payload, except for any .svn
or CVS directories, and any .DS_Store files. You can override
these default filters by specifying one or more --filter
options. Each filter-expression is an re_format(7)
``extended'' expression: any path in the root which matches
any of the given expressions will be excluded from the pack-
age payload. (Note that specifying even one --filter inhibits
the default filters, so you must respecify the default fil-
ters if you still want them to be used.)
It turns out the default filter these days *also* includes .git and
.hg. Notice how that filter expression is a regular expression? That
(presumably unintentionally) prevents a file named "chg" or "_hg" from
getting included in the distribution. Many many thanks to spectral@
for trying to include a _hg file which led us to figure this bug out.
Bug filed with Apple for this as rdar://problem/32437369, mentioning
both the gap in documentation and the wrong defaults.
Since 1d07d9da84a0, pycompat.bytestr() wrapped by win32mbcs returns
unicode object, if an argument is not byte-str object. And this causes
unexpected failure at colorization.
pycompat.bytestr() is used to convert from color effect "int" value to
byte-str object in color module. Wrapped pycompat.bytestr() returns
unicode object for such "int" value, because it isn't byte-str.
If this returned unicode object is used to colorize non-ASCII byte-str
in cases below, UnicodeDecodeError is raised at an operation between
them.
- colorization uses "ansi" color mode, or
Even though this isn't default on Windows, user might use this
color mode for third party pager.
- ui.write() is buffered with labeled=True
Buffering causes "ansi" color mode internally, regardless of
actual color mode. With "win32" color mode, extra escape sequences
are omitted at writing data out.
For example, with "win32" color mode, "hg status" doesn't fail for
non-ASCII filenames, but "hg log" does for non-ASCII text, because
the latter implies buffered formatter.
There are many "color effect" value lines in color.py, and making them
byte-str objects isn't suitable for fixing on stable. In addition to
it, pycompat.bytestr will be used to get byte-str object from any
types other than int, too.
To resolve this issue, this patch does:
- replace pycompat.bytestr in checkwinfilename() with newly added
hook point util._filenamebytestr, and
- make win32mbcs reverse-wrap util._filenamebytestr
(this is a replacement of 1d07d9da84a0)
This patch does two things above at same time, because separately
applying the former change adds broken revision (from point of view of
win32mbcs) to stable branch.
"_" prefix is added to "filenamebytestr", because it is win32mbcs
specific hook point.
When trying to create a zstd bundle, the MSI based install said:
abort: compression engine zstd could not be loaded
The Inno installer is unaffected. The name will need to be updated to include
'cext' when merging into default.
This commit essentially reverts 62ad9c1dbce9.
urllib2.URLError receives a "reason" argument. It isn't always a
tuple. Mozilla has experienced at least IndexError failures due
to the reason[1] access.
https://bugzilla.mozilla.org/show_bug.cgi?id=1364687
Before this patch, "hg CMD --pager on" on Windows shows output
unintentionally decorated with ANSI color escape sequences, if color
mode is "auto". This issue occurs in steps below.
1. dispatch() invokes ui.pager() at detection of "--pager on"
2. stdout of hg process is redirected into stdin of pager process
3. "ui.formatted" = True, because isatty(stdout) is so before (2)
4. color module is loaded for colorization
5. color.w32effects = None, because GetConsoleScreenBufferInfo()
fails on stdout redirected at (2)
6. "ansi" color mode is chosen, because of "not w32effects"
7. output is colorized in "ansi" mode because of "ui.formatted" = True
Even if "ansi" color mode is chosen, ordinarily redirected stdout
makes ui.formatted() return False, and colorization is avoided. But in
this issue case, "ui.formatted" = True at (3) forces output to be
colorized.
For correct console information on win32, it is needed to ensure that
color module is loaded before redirection of stdout for pagination.
BTW, if any of enabled extensions has "colortable" attribute, this
issue is avoided even before this patch, because color module is
imported as a part of loading such extension, and extension loading
occurs before setting up pager. For example, mq and keyword have
"colortable".
Adding markers to the repository might affect the set of obsolete changesets. So we
most remove the "volatile" set who rely in that data. We add two missing
invalidations after merging markers. This was caught by code change in the evolve
extensions tests.
This issues highlight that the current way to do things is a bit fragile,
however we keep things simple for stable.
win32mbcs wraps some functions, to prevent them from unintentionally
treating backslash (0x5c), which is used as the second or later byte
of multi bytes characters by problematic encodings, as a path
component delimiter on Windows platform.
This wrapping assumes that wrapped functions can safely accept unicode
string arguments.
Unfortunately, 440868900036 broke this assumption by introducing
pycompat.bytestr() into util.checkwinfilename() for py3 support. After
that, wrapped checkwinfilename() always fails for non-ASCII filename
at pycompat.bytestr() invocation.
This patch wraps underlying pycompat.bytestr() function to use
util.checkwinfilename() safely.
To avoid similar regression in the future, another patch series will
add smoke testing on default branch.
Graft used findmissingrevs to find the candidates for graft duplicates in the
destination. That function operates with the constraint:
1. N is an ancestor of some node in 'heads'
2. N is not an ancestor of any node in 'common'
For our purpose, we do however have to work correctly in cases where the graft
set has multiple roots or where merges between graft ranges are skipped. The
only changesets we can be sure doesn't have ancestors that are grafts of any
changeset in the graftset, are the ones that are common ancestors of *all*
changesets in the graftset. We thus need:
2. N is not an ancestor of all nodes in 'common'
This change will graft more correctly, but it will also in some cases make
graft slower by making it search through a bigger and unnecessary large sets of
changes to find duplicates. In the general case of grafting individual or
linear sets, we do the same amount of work as before.
