Mercurial > hg
view hgext/purge.py @ 45006:36178b5c9aeb
debian: support building a single deb for multiple py3 versions
Around transitions from one python minor version to another (such as 3.7 to
3.8), the current packaging can be slightly problematic - it produces a
`control` file that requires that the version of `python3` that's installed be
exactly the one that was used on the build machine for the `mercurial` package,
by containing a line like:
Depends: sensible-utils, libc6 (>= 2.14), python3 (<< 3.8), python3 (>= 3.7~), python3:any (>= 3.5~)
This is because it "knows" we only built for v3.7, which is the current default
on my system. By building the native components for multiple versions, we can
make it produce a line like this, which is compatible with 3.7 AND 3.8:
Depends: sensible-utils, libc6 (>= 2.14), python3 (<< 3.9), python3 (>= 3.7~), python3:any (>= 3.5~)
This isn't *normally* required, so I'm not making it the default. For those that
receive their python3 and mercurial packages from their distro, and/or don't
have to worry about a situation where the team that manages the python3
installation isn't the same as the team that manages the mercurial installation,
this is probably not necessary.
I chose the names `DEB_HG_*` because `DEB_*` is passed through `debuild`
automatically (otherwise we'd have to explicitly allow the options through,
which is a nuisance), and the `HG` part is to make it clear that this isn't a
"standard" debian option that other packages might respect.
Test Plan:
1. "nothing changed":
- built a deb without these changes
- built a deb with these changes but everything at the default
- used diffoscope to compare, all differences were due to timestamps
2. "explicit is the same as implicit" (single version)
- built a deb with everything at the default
- built a deb with DEB_HG_PYTHON_VERSIONS=3.7
- used diffoscope to compare, all differences were due to timestamps
3. "explicit is the same as implicit" (multi version)
- built a deb with DEB_HG_MULTI_VERSION=1
- built a deb with DEB_HG_PYTHON_VERSIONS=3.7
- used diffoscope to compare, all differences were due to timestamps
4. (single version, 3.7) doesn't work with python3.8
- `/usr/bin/python3.7 /usr/bin/hg debuginstall` works
- `/usr/bin/python3.8 /usr/bin/hg debuginstall` crashes
5. (multi version, 3.7 + 3.8)
- `/usr/bin/python3.7 /usr/bin/hg debuginstall` works
- `/usr/bin/python3.8 /usr/bin/hg debuginstall` works
Differential Revision: https://phab.mercurial-scm.org/D8642
author | Kyle Lippincott <spectral@google.com> |
---|---|
date | Thu, 18 Jun 2020 10:48:27 -0700 |
parents | 9f8eddd2723f |
children | 81859d38e009 |
line wrap: on
line source
# Copyright (C) 2006 - Marco Barisione <marco@barisione.org> # # This is a small extension for Mercurial (https://mercurial-scm.org/) # that removes files not known to mercurial # # This program was inspired by the "cvspurge" script contained in CVS # utilities (http://www.red-bean.com/cvsutils/). # # For help on the usage of "hg purge" use: # hg help purge # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see <http://www.gnu.org/licenses/>. '''command to delete untracked files from the working directory''' from __future__ import absolute_import from mercurial.i18n import _ from mercurial import ( cmdutil, merge as mergemod, pycompat, registrar, scmutil, ) cmdtable = {} command = registrar.command(cmdtable) # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should # be specifying the version(s) of Mercurial they are tested with, or # leave the attribute unspecified. testedwith = b'ships-with-hg-core' @command( b'purge|clean', [ (b'a', b'abort-on-err', None, _(b'abort if an error occurs')), (b'', b'all', None, _(b'purge ignored files too')), (b'i', b'ignored', None, _(b'purge only ignored files')), (b'', b'dirs', None, _(b'purge empty directories')), (b'', b'files', None, _(b'purge files')), (b'p', b'print', None, _(b'print filenames instead of deleting them')), ( b'0', b'print0', None, _( b'end filenames with NUL, for use with xargs' b' (implies -p/--print)' ), ), ] + cmdutil.walkopts, _(b'hg purge [OPTION]... [DIR]...'), helpcategory=command.CATEGORY_MAINTENANCE, ) def purge(ui, repo, *dirs, **opts): '''removes files not tracked by Mercurial Delete files not known to Mercurial. This is useful to test local and uncommitted changes in an otherwise-clean source tree. This means that purge will delete the following by default: - Unknown files: files marked with "?" by :hg:`status` - Empty directories: in fact Mercurial ignores directories unless they contain files under source control management But it will leave untouched: - Modified and unmodified tracked files - Ignored files (unless -i or --all is specified) - New files added to the repository (with :hg:`add`) The --files and --dirs options can be used to direct purge to delete only files, only directories, or both. If neither option is given, both will be deleted. If directories are given on the command line, only files in these directories are considered. Be careful with purge, as you could irreversibly delete some files you forgot to add to the repository. If you only want to print the list of files that this program would delete, use the --print option. ''' opts = pycompat.byteskwargs(opts) cmdutil.check_at_most_one_arg(opts, b'all', b'ignored') act = not opts.get(b'print') eol = b'\n' if opts.get(b'print0'): eol = b'\0' act = False # --print0 implies --print if opts.get(b'all', False): ignored = True unknown = True else: ignored = opts.get(b'ignored', False) unknown = not ignored removefiles = opts.get(b'files') removedirs = opts.get(b'dirs') if not removefiles and not removedirs: removefiles = True removedirs = True match = scmutil.match(repo[None], dirs, opts) paths = mergemod.purge( repo, match, unknown=unknown, ignored=ignored, removeemptydirs=removedirs, removefiles=removefiles, abortonerror=opts.get(b'abort_on_err'), noop=not act, ) for path in paths: if not act: ui.write(b'%s%s' % (path, eol))