fsmonitor: migrate Python ABCs from collections to collections.abc
The Collections Abstract Base Classes in the collections module are
deprecated since Python 3.3 in favor of collections.abc, and removed
in Python 3.10.
Test the extensions.afterloaded() function
$ cat > foo.py <<EOF
> from mercurial import extensions
> def uisetup(ui):
> ui.write(b"foo.uisetup\\n")
> ui.flush()
> def bar_loaded(loaded):
> ui.write(b"foo: bar loaded: %r\\n" % (loaded,))
> ui.flush()
> extensions.afterloaded(b'bar', bar_loaded)
> EOF
$ cat > bar.py <<EOF
> def uisetup(ui):
> ui.write(b"bar.uisetup\\n")
> ui.flush()
> EOF
$ basepath=`pwd`
$ hg init basic
$ cd basic
$ echo foo > file
$ hg add file
$ hg commit -m 'add file'
$ echo '[extensions]' >> .hg/hgrc
$ echo "foo = $basepath/foo.py" >> .hg/hgrc
$ echo "bar = $basepath/bar.py" >> .hg/hgrc
$ hg log -r. -T'{rev}\n'
foo.uisetup
foo: bar loaded: True
bar.uisetup
0
Test afterloaded with the opposite extension load order
$ cd ..
$ hg init basic_reverse
$ cd basic_reverse
$ echo foo > file
$ hg add file
$ hg commit -m 'add file'
$ echo '[extensions]' >> .hg/hgrc
$ echo "bar = $basepath/bar.py" >> .hg/hgrc
$ echo "foo = $basepath/foo.py" >> .hg/hgrc
$ hg log -r. -T'{rev}\n'
bar.uisetup
foo.uisetup
foo: bar loaded: True
0
Test the extensions.afterloaded() function when the requested extension is not
loaded
$ cd ..
$ hg init notloaded
$ cd notloaded
$ echo foo > file
$ hg add file
$ hg commit -m 'add file'
$ echo '[extensions]' >> .hg/hgrc
$ echo "foo = $basepath/foo.py" >> .hg/hgrc
$ hg log -r. -T'{rev}\n'
foo.uisetup
foo: bar loaded: False
0
Test the extensions.afterloaded() function when the requested extension is not
configured but fails the minimum version check
$ cd ..
$ cat > minvers.py <<EOF
> minimumhgversion = b'9999.9999'
> def uisetup(ui):
> ui.write(b"minvers.uisetup\\n")
> ui.flush()
> EOF
$ hg init minversion
$ cd minversion
$ echo foo > file
$ hg add file
$ hg commit -m 'add file'
$ echo '[extensions]' >> .hg/hgrc
$ echo "foo = $basepath/foo.py" >> .hg/hgrc
$ echo "bar = $basepath/minvers.py" >> .hg/hgrc
$ hg log -r. -T'{rev}\n'
(third party extension bar requires version 9999.9999 or newer of Mercurial (current: *); disabling) (glob)
foo.uisetup
foo: bar loaded: False
0
Test the extensions.afterloaded() function when the requested extension is not
configured but fails the minimum version check, using the opposite load order
for the two extensions.
$ cd ..
$ hg init minversion_reverse
$ cd minversion_reverse
$ echo foo > file
$ hg add file
$ hg commit -m 'add file'
$ echo '[extensions]' >> .hg/hgrc
$ echo "bar = $basepath/minvers.py" >> .hg/hgrc
$ echo "foo = $basepath/foo.py" >> .hg/hgrc
$ hg log -r. -T'{rev}\n'
(third party extension bar requires version 9999.9999 or newer of Mercurial (current: *); disabling) (glob)
foo.uisetup
foo: bar loaded: False
0