highlight: add highlightfiles config option which takes a fileset (issue3005) Highlight extension lacked a way to limit files by size, by extension, and/or by any other part of file path. A good solution would be to use a fileset, since it can check file path, extension and size (and more) in one expression. So this change introduces such an option, highlighfiles, which takes a fileset and on each request decides if the requested file should be highlighted. The default "size('<5M')" is, in a way, suggested in issue3005. checkfctx() limits the amount of work to just one file (subset kwarg in fileset.matchctx()). Monkey-patching works around issue4568, otherwise using filesets here while running hgweb in directory mode would say, for example, "Abort: **.py not under root", but this fix is very local and probably far from ideal. I suspect there to be a way to fix this for the whole hgweb and resolve the issue, but I don't know how to do it.

posix: shellquote do not require quoting for "+" (issue4818)

hgweb: consume generator inside context manager (issue4756) If code inside a context manager returns a generator, the context manager exits before the generator is iterated. hgweb was using a context manager to control thread safe access to a localrepository instance. But it was returning a generator, so there was a race condition between a previous request streaming a response to the client and a new request obtaining the released but in use repository. By iterating the generator inside the context manager, we ensure we don't release the repo instance until after the response has finished. With this change, hgweb finally appears to have full localrepository isolation between threads. I can no longer reproduce the 2 exceptions reported in issue4756. test-hgweb-non-interactive.t has been modified to consume the output of calling into a WSGI application. Without this, execution of the WSGI application stalls because of the added yield statement.

histedit: use one editor when multiple folds happen in a row (issue3524) (BC) This was the first ever feature request for histedit, originally filed back on April 4, 2009. Finally fixed. In the future we'll probably want to make it possible for other preprocessing steps to be added to the list, but for now we're skipping that because it's unclear what the API should look like without a proposed consumer.

hgweb: replace .sourcelast with .bottomline that does the same In paper and Coal, basically, div.sourcelast was only used to make a 1px border on the bottom of file source view (and only there). It's better to use bottomline class, that also exists for the same purpose (visually), but is used more widely and works without needing an empty <div>.

coal: copy newer things from paper Basically, coal style in hgweb is intended to be functionally equivalent (just different in style) to paper, and does this by reusing almost all templates from paper (except header.tmpl, where it specifies a different css file). Looks like everybody forgot this and so many improvements to paper templates, that should've also made it into coal, were often only half-done there (usually thanks to template reuse). Let's fix this by bulk-copying missing things from paper/map and style-paper.css to coal/map and style-coal.css. There were many improvements to paper that didn't touch coal, and that makes it hard to untangle the code and split this patch into many, but here are some of the changes (paper-only), that now get into coal: 41c4bdd1d585 - hgweb: color line which is linked to in file source view f3393d458bf5 - hgweb: highlight line which is linked to at annotate view f2e4fdb3dd27 - hgweb: code selection without line numbers in file source view 5ec5097b4c0f - hgweb: add line wrapping switch to file source view bf661a03fddc - hgweb: use css margin instead of empty <p> before diffstat table It also fixes line anchor in annotateline template (#42 vs #l42).