obsolescence: add test for the "branch replacement" logic during push, case B3
Mercurial checks for the introduction of new heads on push. Evolution comes
into play to detect if existing branches on the server are being replaced by
some of the new one we push.
The current code for this logic is very basic (eg: issue4354) and was poorly
tested. We have a better implementation coming in the evolve extension fixing
these issues and with more serious tests coverage. In the process of upstreaming
this improved logic, we start with adding the test case that are already passing
with the current implementation. Once they are all in, we'll upstream the better
implementation and the extra test cases.
See inline documentation for details about the test case added in this
changeset.
Environment setup for MQ
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ cat >> $HGRCPATH <<EOF
> [defaults]
> # explicit date to commit with fixed hashid
> qnew = -d "0 0"
> qrefresh = -d "0 0"
> qfold = -d "0 0"
> EOF
$ hg init
$ hg qinit
Should fail if no patches applied
(this tests also that editor is not invoked if '--edit' is not
specified)
$ hg qrefresh
no patches applied
[1]
$ hg qrefresh -e
no patches applied
[1]
$ hg qnew -m "First commit message" first-patch
$ echo aaaa > file
$ hg add file
$ HGEDITOR=cat hg qrefresh
Should display 'First commit message'
$ hg log -l1 --template "{desc}\n"
First commit message
Testing changing message with -m
(this tests also that '--edit' can be used with '--message', and
that '[committemplate] changeset' definition and commit log specific
template keyword 'extramsg' work well)
$ cat >> .hg/hgrc <<EOF
> [committemplate]
> listupfiles = {file_adds %
> "HG: added {file}\n" }{file_mods %
> "HG: changed {file}\n" }{file_dels %
> "HG: removed {file}\n" }{if(files, "",
> "HG: no files changed\n")}
>
> changeset = HG: this is customized commit template
> {desc}\n\n
> HG: Enter commit message. Lines beginning with 'HG:' are removed.
> HG: {extramsg}
> HG: --
> HG: user: {author}
> HG: branch '{branch}'\n{listupfiles}
> EOF
$ echo bbbb > file
$ HGEDITOR=cat hg qrefresh -m "Second commit message" -e
HG: this is customized commit template
Second commit message
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to use default message.
HG: --
HG: user: test
HG: branch 'default'
HG: added file
$ cat >> .hg/hgrc <<EOF
> # disable customizing for subsequent tests
> [committemplate]
> changeset =
> EOF
Should display 'Second commit message'
$ hg log -l1 --template "{desc}\n"
Second commit message
Testing changing message with -l
$ echo "Third commit message" > logfile
$ echo " This is the 3rd log message" >> logfile
$ echo bbbb > file
$ hg qrefresh -l logfile
Should display 'Third commit message\\\n This is the 3rd log message'
$ hg log -l1 --template "{desc}\n"
Third commit message
This is the 3rd log message
Testing changing message with -l-
$ hg qnew -m "First commit message" second-patch
$ echo aaaa > file2
$ hg add file2
$ echo bbbb > file2
$ (echo "Fifth commit message"; echo " This is the 5th log message") | hg qrefresh -l-
Should display 'Fifth commit message\\\n This is the 5th log message'
$ hg log -l1 --template "{desc}\n"
Fifth commit message
This is the 5th log message
Test saving last-message.txt:
$ cat > $TESTTMP/editor.sh << EOF
> echo "==== before editing"
> cat \$1
> echo "===="
> (echo; echo "test saving last-message.txt") >> \$1
> EOF
$ cat > $TESTTMP/commitfailure.py <<EOF
> from mercurial import error
> def reposetup(ui, repo):
> class commitfailure(repo.__class__):
> def commit(self, *args, **kwargs):
> raise error.Abort('emulating unexpected abort')
> repo.__class__ = commitfailure
> EOF
$ cat >> .hg/hgrc <<EOF
> [extensions]
> # this failure occurs before editor invocation
> commitfailure = $TESTTMP/commitfailure.py
> EOF
$ hg qapplied
first-patch
second-patch
$ hg tip --template "{files}\n"
file2
(test that editor is not invoked before transaction starting)
$ rm -f .hg/last-message.txt
$ HGEDITOR="sh $TESTTMP/editor.sh" hg qrefresh -e
qrefresh interrupted while patch was popped! (revert --all, qpush to recover)
abort: emulating unexpected abort
[255]
$ test -f .hg/last-message.txt
[1]
(reset applied patches and directory status)
$ cat >> .hg/hgrc <<EOF
> [extensions]
> commitfailure = !
> EOF
$ hg qapplied
first-patch
$ hg status -A file2
? file2
$ rm file2
$ hg qpush -q second-patch
now at: second-patch
(test that editor is invoked and commit message is saved into
"last-message.txt")
$ cat >> .hg/hgrc <<EOF
> [hooks]
> # this failure occurs after editor invocation
> pretxncommit.unexpectedabort = false
> EOF
$ rm -f .hg/last-message.txt
$ hg status --rev "second-patch^1" -arm
A file2
$ HGEDITOR="sh $TESTTMP/editor.sh" hg qrefresh -e
==== before editing
Fifth commit message
This is the 5th log message
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to use default message.
HG: --
HG: user: test
HG: branch 'default'
HG: added file2
====
note: commit message saved in .hg/last-message.txt
transaction abort!
rollback completed
qrefresh interrupted while patch was popped! (revert --all, qpush to recover)
abort: pretxncommit.unexpectedabort hook exited with status 1
[255]
$ cat .hg/last-message.txt
Fifth commit message
This is the 5th log message
test saving last-message.txt
Test visibility of in-memory dirstate changes outside transaction to
external process
$ cat > $TESTTMP/checkvisibility.sh <<EOF
> echo "===="
> hg parents --template "{rev}:{node|short}\n"
> hg status -arm
> echo "===="
> EOF
== test visibility to external editor
$ hg update -C -q first-patch
$ rm -f file2
$ hg qpush -q second-patch --config hooks.pretxncommit.unexpectedabort=
now at: second-patch
$ echo bbbb >> file2
$ sh "$TESTTMP/checkvisibility.sh"
====
1:e30108269082
M file2
====
$ HGEDITOR="sh \"$TESTTMP/checkvisibility.sh\"" hg qrefresh -e
====
0:25e397dabed2
A file2
====
note: commit message saved in .hg/last-message.txt
transaction abort!
rollback completed
qrefresh interrupted while patch was popped! (revert --all, qpush to recover)
abort: pretxncommit.unexpectedabort hook exited with status 1
[255]
(rebuilding at failure of qrefresh bases on rev #0, and it causes
dropping status of "file2")
$ sh "$TESTTMP/checkvisibility.sh"
====
0:25e397dabed2
====
== test visibility to precommit external hook
$ hg update -C -q
$ rm -f file2
$ hg qpush -q second-patch --config hooks.pretxncommit.unexpectedabort=
now at: second-patch
$ echo bbbb >> file2
$ cat >> .hg/hgrc <<EOF
> [hooks]
> precommit.checkvisibility = sh "$TESTTMP/checkvisibility.sh"
> EOF
$ sh "$TESTTMP/checkvisibility.sh"
====
1:e30108269082
M file2
====
$ hg qrefresh
====
0:25e397dabed2
A file2
====
transaction abort!
rollback completed
qrefresh interrupted while patch was popped! (revert --all, qpush to recover)
abort: pretxncommit.unexpectedabort hook exited with status 1
[255]
$ sh "$TESTTMP/checkvisibility.sh"
====
0:25e397dabed2
====
$ cat >> .hg/hgrc <<EOF
> [hooks]
> precommit.checkvisibility =
> EOF
== test visibility to pretxncommit external hook
$ hg update -C -q
$ rm -f file2
$ hg qpush -q second-patch --config hooks.pretxncommit.unexpectedabort=
now at: second-patch
$ echo bbbb >> file2
$ cat >> .hg/hgrc <<EOF
> [hooks]
> pretxncommit.checkvisibility = sh "$TESTTMP/checkvisibility.sh"
> # make checkvisibility run before unexpectedabort
> priority.pretxncommit.checkvisibility = 10
> EOF
$ sh "$TESTTMP/checkvisibility.sh"
====
1:e30108269082
M file2
====
$ hg qrefresh
====
0:25e397dabed2
A file2
====
transaction abort!
rollback completed
qrefresh interrupted while patch was popped! (revert --all, qpush to recover)
abort: pretxncommit.unexpectedabort hook exited with status 1
[255]
$ sh "$TESTTMP/checkvisibility.sh"
====
0:25e397dabed2
====
$ cat >> .hg/hgrc <<EOF
> [hooks]
> pretxncommit.checkvisibility =
> EOF