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
========================================================
Test the ability to access a hidden revision on a server
========================================================
#require serve
$ . $TESTDIR/testlib/obsmarker-common.sh
$ cat >> $HGRCPATH << EOF
> [phases]
> # public changeset are not obsolete
> publish=false
> [experimental]
> evolution=all
> [ui]
> logtemplate='{rev}:{node|short} {desc} [{phase}]\n'
> EOF
Setup a simple repository with some hidden revisions
----------------------------------------------------
Testing the `served.hidden` view
$ hg init repo-with-hidden
$ cd repo-with-hidden
$ echo 0 > a
$ hg ci -qAm "c_Public"
$ hg phase --public
$ echo 1 > a
$ hg ci -m "c_Amend_Old"
$ echo 2 > a
$ hg ci -m "c_Amend_New" --amend
$ hg up ".^"
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo 3 > a
$ hg ci -m "c_Pruned"
created new head
$ hg debugobsolete --record-parents `getid 'desc("c_Pruned")'` -d '0 0'
1 new obsolescence markers
obsoleted 1 changesets
$ hg up ".^"
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo 4 > a
$ hg ci -m "c_Secret" --secret
created new head
$ echo 5 > a
$ hg ci -m "c_Secret_Pruned" --secret
$ hg debugobsolete --record-parents `getid 'desc("c_Secret_Pruned")'` -d '0 0'
1 new obsolescence markers
obsoleted 1 changesets
$ hg up null
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log -G -T '{rev}:{node|short} {desc} [{phase}]\n' --hidden
x 5:8d28cbe335f3 c_Secret_Pruned [secret]
|
o 4:1c6afd79eb66 c_Secret [secret]
|
| x 3:5d1575e42c25 c_Pruned [draft]
|/
| o 2:c33affeb3f6b c_Amend_New [draft]
|/
| x 1:be215fbb8c50 c_Amend_Old [draft]
|/
o 0:5f354f46e585 c_Public [public]
$ hg debugobsolete
be215fbb8c5090028b00154c1fe877ad1b376c61 c33affeb3f6b4e9621d1839d6175ddc07708807c 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '9', 'operation': 'amend', 'user': 'test'}
5d1575e42c25b7f2db75cd4e0b881b1c35158fae 0 {5f354f46e5853535841ec7a128423e991ca4d59b} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
8d28cbe335f311bc89332d7bbe8a07889b6914a0 0 {1c6afd79eb6663275bbe30097e162b1c24ced0f0} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
$ cd ..
Test the feature
================
Check cache pre-warm
--------------------
$ ls -1 repo-with-hidden/.hg/cache
branch2
branch2-base
branch2-served
branch2-served.hidden
branch2-visible
rbc-names-v1
rbc-revs-v1
tags2
tags2-visible
Check that the `served.hidden` repoview
---------------------------------------
$ hg -R repo-with-hidden serve -p $HGPORT -d --pid-file hg.pid --config web.view=served.hidden
$ cat hg.pid >> $DAEMON_PIDS
changesets in secret and higher phases are not visible through hgweb
$ hg -R repo-with-hidden log --template "revision: {rev}\\n" --rev "reverse(not secret())"
revision: 2
revision: 0
$ hg -R repo-with-hidden log --template "revision: {rev}\\n" --rev "reverse(not secret())" --hidden
revision: 3
revision: 2
revision: 1
revision: 0
$ get-with-headers.py localhost:$HGPORT 'log?style=raw' | grep revision:
revision: 3
revision: 2
revision: 1
revision: 0
$ killdaemons.py