test: add test-transaction-rollback-on-sigpipe.t demonstrating py3 regression
When an hg push is interrupted with C-c, the remote [hg serve] command
receives SIGPIPE.
If a pretxnchangegroup hook fails, the remote hg then tries to
rollback the transaction. It begins by printing "transaction
abort!\n". This returns EPIPE, but ui.py ignores that error.
In python3 (but not python2), this "transaction abort!\n" message
stays in a buffer, so future flushes of stderr will try to print the
message again, and so those flushes will also hit EPIPE.
This test demonstrates such a case where this EPIPE causes the
transaction rollback to fail, leaving behind an abandoned transaction.
Differential Revision: https://phab.mercurial-scm.org/D9151
#testcases flat tree
$ . "$TESTDIR/narrow-library.sh"
#if tree
$ cat << EOF >> $HGRCPATH
> [experimental]
> treemanifest = 1
> EOF
#endif
$ hg init master
$ cd master
$ cat >> .hg/hgrc <<EOF
> [narrow]
> serveellipses=True
> EOF
$ mkdir inside
$ echo 'inside' > inside/f
$ hg add inside/f
$ hg commit -m 'add inside'
$ mkdir widest
$ echo 'widest' > widest/f
$ hg add widest/f
$ hg commit -m 'add widest'
$ mkdir outside
$ echo 'outside' > outside/f
$ hg add outside/f
$ hg commit -m 'add outside'
$ cd ..
narrow clone the inside file
$ hg clone --narrow ssh://user@dummy/master narrow --include inside
requesting all changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 1 changes to 1 files
new changesets *:* (glob)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd narrow
$ hg tracked
I path:inside
$ ls -A
.hg
inside
$ cat inside/f
inside
$ cd ..
add more upstream files which we will include in a wider narrow spec
$ cd master
$ mkdir wider
$ echo 'wider' > wider/f
$ hg add wider/f
$ echo 'widest v2' > widest/f
$ hg commit -m 'add wider, update widest'
$ echo 'widest v3' > widest/f
$ hg commit -m 'update widest v3'
$ echo 'inside v2' > inside/f
$ hg commit -m 'update inside'
$ mkdir outside2
$ echo 'outside2' > outside2/f
$ hg add outside2/f
$ hg commit -m 'add outside2'
$ echo 'widest v4' > widest/f
$ hg commit -m 'update widest v4'
$ hg log -T "{if(ellipsis, '...')}{rev}: {desc}\n"
7: update widest v4
6: add outside2
5: update inside
4: update widest v3
3: add wider, update widest
2: add outside
1: add widest
0: add inside
$ cd ..
Testing the --import-rules flag of `hg tracked` command
$ cd narrow
$ hg tracked --import-rules
hg tracked: option --import-rules requires argument
hg tracked [OPTIONS]... [REMOTE]
show or change the current narrowspec
options ([+] can be repeated):
--addinclude VALUE [+] new paths to include
--removeinclude VALUE [+] old paths to no longer include
--auto-remove-includes automatically choose unused includes to
remove
--addexclude VALUE [+] new paths to exclude
--import-rules VALUE import narrowspecs from a file
--removeexclude VALUE [+] old paths to no longer exclude
--clear whether to replace the existing narrowspec
--force-delete-local-changes forces deletion of local changes when
narrowing
--update-working-copy update working copy when the store has
changed
-e --ssh CMD specify ssh command to use
--remotecmd CMD specify hg command to run on the remote side
--insecure do not verify server certificate (ignoring
web.cacerts config)
(use 'hg tracked -h' to show more help)
[255]
$ hg tracked --import-rules doesnotexist
abort: cannot read narrowspecs from '$TESTTMP/narrow/doesnotexist': $ENOENT$
[255]
$ cat > specs <<EOF
> %include foo
> [include]
> path:widest/
> [exclude]
> path:inside/
> EOF
$ hg tracked --import-rules specs
abort: including other spec files using '%include' is not supported in narrowspec
[255]
$ cat > specs <<EOF
> [include]
> outisde
> [exclude]
> inside
> EOF
$ hg tracked --import-rules specs
comparing with ssh://user@dummy/master
searching for changes
looking for local changes to affected paths
deleting data/inside/f.i
deleting meta/inside/00manifest.i (tree !)
saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob)
adding changesets
adding manifests
adding file changes
added 2 changesets with 0 changes to 0 files
$ hg tracked
I path:outisde
X path:inside
Testing the --import-rules flag with --addinclude and --addexclude
$ cat > specs <<EOF
> [include]
> widest
> EOF
$ hg tracked --import-rules specs --addinclude 'wider/'
comparing with ssh://user@dummy/master
searching for changes
saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob)
adding changesets
adding manifests
adding file changes
added 3 changesets with 1 changes to 1 files
$ hg tracked
I path:outisde
I path:wider
I path:widest
X path:inside
$ cat > specs <<EOF
> [exclude]
> outside2
> EOF
$ hg tracked --import-rules specs --addexclude 'widest'
comparing with ssh://user@dummy/master
searching for changes
looking for local changes to affected paths
deleting data/widest/f.i
deleting meta/widest/00manifest.i (tree !)
$ hg tracked
I path:outisde
I path:wider
X path:inside
X path:outside2
X path:widest
$ hg tracked --import-rules specs --clear
abort: the --clear option is not yet supported
[255]
Testing with passing a out of wdir file
$ cat > ../nspecs <<EOF
> [include]
> widest
> EOF
$ hg tracked --import-rules ../nspecs
comparing with ssh://user@dummy/master
searching for changes
saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob)
adding changesets
adding manifests
adding file changes
added 3 changesets with 0 changes to 0 files
$ cd ..
Testing tracked command on a non-narrow repo
$ hg init non-narrow
$ cd non-narrow
$ hg tracked --addinclude foobar
abort: the tracked command is only supported on repositories cloned with --narrow
[255]