upstream/mercurial-mirror Files · hgweb.cgi

rust: module policy with importrust...

rust: module policy with importrust We introduce two rust+c module policies and a new `policy.importrust()` that makes use of them. This simple approach provides runtime switching of implementations, which is crucial for the performance measurements such as those Octobus does with ASV. It can also be useful for bug analysis. It also has the advantage of making conditionals in Rust callers more uniform, in particular abstracting over specifics like `demandimport` At this point, the build stays unchanged, with the rust-cpython based `rustext` module being built if HGWITHRUSTEXT=cpython. More transparency for the callers, i.e., just using `policy.importmod` would be a much longer term and riskier effort for the following reasons: 1. It would require to define common module boundaries for the three or four cases (pure, c, rust+ext, cffi) and that is premature with the Rust extension currently under heavy development in areas that are outside the scope of the C extensions. 2. It would imply internal API changes that are not currently wished, as the case of ancestors demonstrates. 3. The lack of data or property-like attributes (tp_member and tp_getset) in current `rust-cpython` makes it impossible to achieve direct transparent replacement of pure Python classes by Rust extension code, meaning that the caller sometimes has to be able to make adjustments or provide additional wrapping.

Matt Mackall - - Load All Authors

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mpm@selenic.com Call python via env in hgweb.cgi	r202	#!/usr/bin/env python
mpm@selenic.com Add example CGI script...	r159	#
Matt Mackall hgweb: simplify hgweb.cgi, add help pointer...	r11000	# An example hgweb CGI script, edit as necessary
Matt Mackall urls: bulk-change primary website URLs	r26421	# See also https://mercurial-scm.org/wiki/PublishingRepositories
mpm@selenic.com Add example CGI script...	r159
Matt Mackall hgweb: simplify hgweb.cgi, add help pointer...	r11000	# Path to repo or hgweb config to serve (see 'hg help hgweb')
		config = "/path/to/repo/or/config"
Benoit Boissinot cgi: sys.path.insert should be before importing mercurial...	r5244
Matt Mackall hgweb: add hint about finding library path with debuginstall	r15475	# Uncomment and adjust if Mercurial is not installed system-wide
		# (consult "installed modules" path from 'hg debuginstall'):
Matt Mackall hgweb: simplify hgweb.cgi, add help pointer...	r11000	#import sys; sys.path.insert(0, "/path/to/python/lib")
Thomas Arendsen Hein Enable demandimport only in scripts, not in importable modules (issue605)...	r5197
Maxim Dounin hgweb: disable cgitb by default	r6080	# Uncomment to send python tracebacks to the browser if an error occurs:
Matt Mackall hgweb: simplify hgweb.cgi, add help pointer...	r11000	#import cgitb; cgitb.enable()
mpm@selenic.com hgweb: pull cgitb into CGI script example, where it can easily be disabled...	r391
Matt Mackall hgweb: simplify hgweb.cgi, add help pointer...	r11000	from mercurial import demandimport; demandimport.enable()
		from mercurial.hgweb import hgweb, wsgicgi
		application = hgweb(config)
Thomas Arendsen Hein Backed out changeset b913d3aacddc (see issue971/msg5317)	r6141	wsgicgi.launch(application)

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