view tests/test-patchbomb @ 11769:ca6cebd8734e stable

dirstate: ignore symlinks when fs cannot handle them (issue1888)

When the filesystem cannot handle the executable bit, we currently
ignore it completely when looking for modified files. Similarly, it is
impossible to set or clear the bit when the filesystem ignores it.

This patch makes Mercurial treat symbolic links the same way.

Symlinks are a little different since they manifest themselves as
small files containing a filename (the symlink target). On Windows,
these files show up as regular files, and on Linux and Mac they show
up as real symlinks.

Issue1888 presents a case where the symlink files are better ignored
from the Windows side. A Linux client creates symlinks in a working
copy which is shared over a network between Linux and Windows clients.

The Samba server is helpful and defererences the symlink when the
Windows client looks at it. This means that Mercurial on the Windows
side sees file content instead of a file name in the symlink, and
hence flags the link as modified. Ignoring the change would be much
more helpful, similarly to how Mercurial does not report any changes
when executable bits are ignored in a checkout on Windows.

An initial checkout of a symbolic link on a file system that cannot
handle symbolic links will still result in a regular file containing
the target file name as its content. Sharing such a checkout with a
Linux client will not turn the file into a symlink automatically, but
'hg revert' can fix that. After the revert, the Windows client will
see the correct file content (provided by the Samba server when it
follows the link on the Linux side) and otherwise ignore the change.

Running 'hg perfstatus' 10 times gives these results:

  Before:          After:
  min: 0.544703    min: 0.546549
  med: 0.547592    med: 0.548881
  avg: 0.549146    avg: 0.548549
  max: 0.564112    max: 0.551504

The median time is increased about 0.24%.

#!/bin/sh

fixheaders()
{
    sed -e 's/\(Message-Id:.*@\).*/\1/'  \
        -e 's/\(In-Reply-To:.*@\).*/\1/' \
        -e 's/\(References:.*@\).*/\1/'  \
        -e 's/\(User-Agent:.*\)\/.*/\1/'  \
        -e 's/===.*/===/'
}

echo "[extensions]" >> $HGRCPATH
echo "patchbomb=" >> $HGRCPATH

hg init t
cd t
echo a > a
hg commit -Ama -d '1 0'

hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -r tip | \
  fixheaders

echo b > b
hg commit -Amb -d '2 0'

hg email --date '1970-1-1 0:2' -n -f quux -t foo -c bar -s test -r 0:tip | \
  fixheaders

hg email -m test.mbox -f quux -t foo -c bar -s test 0:tip

cd ..

hg clone -q t t2
cd t2
echo c > c
hg commit -Amc -d '3 0'

cat > description <<EOF
a multiline

description
EOF

echo "% test bundle and description"
hg email --date '1970-1-1 0:3' -n -f quux -t foo \
    -c bar -s test -r tip -b --desc description | \
    fixheaders

echo "% utf-8 patch"
python -c 'fp = open("utf", "wb"); fp.write("h\xC3\xB6mma!\n"); fp.close();'
hg commit -A -d '4 0' -m 'charset=utf-8; content-transfer-encoding: base64'

echo "% no mime encoding for email --test"
hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -n | \
    fixheaders > mailtest
echo "% md5sum of 8-bit output"
$TESTDIR/md5sum.py mailtest
rm mailtest

echo "% mime encoded mbox (base64)"
hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -m mbox
cat mbox | fixheaders
rm mbox

echo "% mime encoded mbox (quoted-printable)"
python -c 'fp = open("qp", "wb"); fp.write("%s\nfoo\n\nbar\n" % \
  ("x" * 1024)); fp.close();'
hg commit -A -d '4 0' -m \
    'charset=utf-8; content-transfer-encoding: quoted-printable'

echo "% no mime encoding for email --test"
hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -n | \
    fixheaders > mailtest
echo "% md5sum of qp output"
$TESTDIR/md5sum.py mailtest
rm mailtest

echo "% mime encoded mbox (quoted-printable)"
hg email --date '1970-1-1 0:4' -f quux -t foo -c bar -r tip -m mbox
cat mbox | fixheaders
rm mbox

echo "% iso-8859-1 patch"
python -c 'fp = open("isolatin", "wb"); fp.write("h\xF6mma!\n"); fp.close();'
hg commit -A -d '5 0' -m 'charset=us-ascii; content-transfer-encoding: 8bit'

echo "% fake ascii mbox"
hg email --date '1970-1-1 0:5' -f quux -t foo -c bar -r tip -m mbox
fixheaders < mbox > mboxfix
echo "% md5sum of 8-bit output"
$TESTDIR/md5sum.py mboxfix

echo "% test diffstat for single patch"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -d -y -r 2 | \
  fixheaders

echo "% test diffstat for multiple patches"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -d -y \
  -r 0:1 | fixheaders

echo "% test inline for single patch"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -i -r 2 | \
  fixheaders

echo "% test inline for single patch (quoted-printable)"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -i -r 4 | \
  fixheaders

echo "% test inline for multiple patches"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -i \
  -r 0:1 -r 4 | fixheaders

echo "% test attach for single patch"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -a -r 2 | \
  fixheaders

echo "% test attach for single patch (quoted-printable)"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -a -r 4 | \
  fixheaders

echo "% test attach for multiple patches"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -a \
  -r 0:1 -r 4 | fixheaders

echo "% test intro for single patch"
hg email --date '1970-1-1 0:1' -n --intro -f quux -t foo -c bar -s test \
  -r 2 | fixheaders

echo "% test --desc without --intro for a single patch"
echo foo > intro.text
hg email --date '1970-1-1 0:1' -n --desc intro.text -f quux -t foo -c bar \
  -s test -r 2 | fixheaders

echo "% test intro for multiple patches"
hg email --date '1970-1-1 0:1' -n --intro -f quux -t foo -c bar -s test \
  -r 0:1 | fixheaders

echo "% test reply-to via config"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -r 2 \
  --config patchbomb.reply-to='[e-mail]' | fixheaders

echo "% test reply-to via command line"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -r 2 \
  --reply-to baz --reply-to fred | fixheaders

echo "% tagging csets"
hg tag -r0 zero zero.foo
hg tag -r1 one one.patch
hg tag -r2 two two.diff

echo "% test inline for single named patch"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -i -r 2 | \
  fixheaders

echo "% test inline for multiple named/unnamed patches"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar -s test -i -r 0:1 | \
  fixheaders

echo "% test inreplyto"
hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar --in-reply-to baz \
  -r tip | fixheaders

hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar --in-reply-to baz \
  -r 0:1 | fixheaders

hg email --date '1970-1-1 0:1' -n -f quux -t foo -c bar --in-reply-to baz \
  -s test -r 0:1 | fixheaders

echo "% test single flag for single patch"
hg email --date '1970-1-1 0:1' -n --flag fooFlag -f quux -t foo -c bar -s test \
  -r 2 | fixheaders

echo "% test single flag for multiple patches"
hg email --date '1970-1-1 0:1' -n --flag fooFlag -f quux -t foo -c bar -s test \
  -r 0:1 | fixheaders

echo "% test mutiple flags for single patch"
hg email --date '1970-1-1 0:1' -n --flag fooFlag --flag barFlag -f quux -t foo \
 -c bar -s test -r 2 | fixheaders

echo "% test multiple flags for multiple patches"
hg email --date '1970-1-1 0:1' -n --flag fooFlag --flag barFlag -f quux -t foo \
 -c bar -s test -r 0:1 | fixheaders

echo "% test multi-address parsing"
hg email --date '1980-1-1 0:1' -m tmp.mbox -f quux -t 'spam<spam><eggs>' \
 -t toast -c 'foo,[e-mail]' -c '"A, B <>" <[e-mail]>' -s test -r 0 \
 --config email.bcc='"Quux, A." <quux>'
cat tmp.mbox | fixheaders

echo "% test multi-byte domain parsing"
UUML=`python -c 'import sys; sys.stdout.write("\374")'`
HGENCODING=iso-8859-1
export HGENCODING
hg email --date '1980-1-1 0:1' -m tmp.mbox -f quux -t "bar@${UUML}nicode.com" \
  -s test -r 0
cat tmp.mbox | fixheaders

echo "% test outgoing"
hg up 1
hg branch test
echo d > d
hg add d
hg ci -md -d '4 0'
hg email --date '1980-1-1 0:1' -n -t foo -s test -o ../t | fixheaders

echo "% dest#branch URIs"
hg email --date '1980-1-1 0:1' -n -t foo -s test -o ../t#test | fixheaders