tests/test-nointerrupt.t

admin-command: add verify command

Start using the 'admin' namespace by adding a 'verify' command.
Invocation is 'admin::verify'.
The idea is to progressively add more focused checks than the existing
verify command.
To do so we need an advanced way to express what we want to check.

The first check for admin::verify is 'working-copy.dirstate' which has
no options, because it was an easy first check to implement, which
verifies the integrity of the dirstate.

This changeset was created with the help of Franck Bret.

#require no-windows no-rhg

XXX-RHG this test hangs if `hg` is really `rhg`. This was hidden by the use of
`alias hg=rhg` by run-tests.py. With such alias removed, this test is revealed
buggy. This need to be resolved sooner than later.

Dummy extension simulating unsafe long running command
  $ SYNC_FILE="$TESTTMP/sync-file"
  $ export SYNC_FILE
  $ DONE_FILE="$TESTTMP/done-file"
  $ export DONE_FILE
  $ 
  $ cat > wait_ext.py <<EOF
  > import os
  > import time
  > 
  > from mercurial.i18n import _
  > from mercurial import registrar
  > from mercurial import testing
  > 
  > cmdtable = {}
  > command = registrar.command(cmdtable)
  > 
  > @command(b'wait-signal', [], _(b'SYNC_FILE DONE_FILE'), norepo=True)
  > def sleep(ui, sync_file=b"$SYNC_FILE", done_file=b"$DONE_FILE", **opts):
  >     start = time.time()
  >     with ui.uninterruptible():
  >         testing.write_file(sync_file, b'%d' % os.getpid())
  >         testing.wait_file(done_file)
  >         ui.warn(b"end of unsafe operation\n")
  >     ui.warn(b"%d second(s) passed\n" % int(time.time() - start))
  > EOF

  $ cat > send-signal.sh << EOF
  > #!/bin/sh
  > SIG=\$1
  > if [ -z "\$SIG" ]; then
  >    echo "send-signal.sh requires one argument" >&2
  >    exit 1
  > fi
  > "$RUNTESTDIR/testlib/wait-on-file" 10 "$SYNC_FILE" || exit 2
  > kill -s \$SIG \`cat "$SYNC_FILE"\`
  > EOF

#if no-windows
  $ chmod +x send-signal.sh
#endif

  $ cat > wait-signal.sh << 'EOF'
  > #!/bin/sh
  > (hg wait-signal 2>&1; echo [$?]) | {
  >     read line
  >     touch "$DONE_FILE"
  >     echo "$line"
  >     cat
  > }
  > EOF

#if no-windows
  $ chmod +x wait-signal.sh
#endif

Kludge to emulate timeout(1) which is not generally available.

Set up repository
  $ hg init repo
  $ cd repo
  $ cat >> $HGRCPATH << EOF
  > [extensions]
  > wait_ext = $TESTTMP/wait_ext.py
  > EOF

Test ctrl-c
  $ rm -f $SYNC_FILE $DONE_FILE
  $ sh -c "../send-signal.sh INT" &
  $ ../wait-signal.sh
  interrupted!
  [255]

  $ cat >> $HGRCPATH << EOF
  > [experimental]
  > nointerrupt = yes
  > EOF

  $ rm -f $SYNC_FILE $DONE_FILE
  $ sh -c "../send-signal.sh INT" &
  $ ../wait-signal.sh
  interrupted!
  [255]

  $ cat >> $HGRCPATH << EOF
  > [experimental]
  > nointerrupt-interactiveonly = False
  > EOF

  $ rm -f $SYNC_FILE $DONE_FILE
  $ sh -c "../send-signal.sh INT" &
  $ ../wait-signal.sh
  shutting down cleanly
  press ^C again to terminate immediately (dangerous)
  end of unsafe operation
  interrupted!
  [255]