test-copies: introduce merge chains test for the P/Q merges
This is similar to the chaining test we have for the A/E merges.
The current result of this tests is wrong, as for the other test of the same
familly. This will be fixed by a later changesets.
Differential Revision: https://phab.mercurial-scm.org/D10059
#testcases sshv1 sshv2
#if sshv2
$ cat >> $HGRCPATH << EOF
> [experimental]
> sshpeer.advertise-v2 = true
> sshserver.support-v2 = true
> EOF
#endif
This test tries to exercise the ssh functionality with a dummy script
creating 'remote' repo
$ hg init remote
$ cd remote
$ echo this > foo
$ echo this > fooO
$ hg ci -A -m "init" foo fooO
insert a closed branch (issue4428)
$ hg up null
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ hg branch closed
marked working directory as branch closed
(branches are permanent and global, did you want a bookmark?)
$ hg ci -mc0
$ hg ci --close-branch -mc1
$ hg up -q default
configure for serving
$ cat <<EOF > .hg/hgrc
> [server]
> uncompressed = True
>
> [hooks]
> changegroup = sh -c "printenv.py --line changegroup-in-remote 0 ../dummylog"
> EOF
$ cd $TESTTMP
repo not found error
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/nonexistent local
remote: abort: repository nonexistent not found
abort: no suitable response from remote hg
[255]
$ hg clone -q -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/nonexistent local
remote: abort: repository nonexistent not found
abort: no suitable response from remote hg
[255]
non-existent absolute path
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/`pwd`/nonexistent local
remote: abort: repository $TESTTMP/nonexistent not found
abort: no suitable response from remote hg
[255]
clone remote via stream
#if no-reposimplestore
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" --stream ssh://user@dummy/remote local-stream
streaming all changes
8 files to transfer, 827 bytes of data
transferred 827 bytes in * seconds (*) (glob)
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd local-stream
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 3 changesets with 2 changes to 2 files
$ hg branches
default 0:1160648e36ce
$ cd $TESTTMP
clone bookmarks via stream
$ hg -R local-stream book mybook
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" --stream ssh://user@dummy/local-stream stream2
streaming all changes
16 files to transfer, * of data (glob)
transferred * in * seconds (*) (glob)
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd stream2
$ hg book
mybook 0:1160648e36ce
$ cd $TESTTMP
$ rm -rf local-stream stream2
#endif
clone remote via pull
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote local
requesting all changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 2 changes to 2 files
new changesets 1160648e36ce:ad076bfb429d
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
verify
$ cd local
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 3 changesets with 2 changes to 2 files
$ cat >> .hg/hgrc <<EOF
> [hooks]
> changegroup = sh -c "printenv.py changegroup-in-local 0 ../dummylog"
> EOF
empty default pull
$ hg paths
default = ssh://user@dummy/remote
$ hg pull -e "\"$PYTHON\" \"$TESTDIR/dummyssh\""
pulling from ssh://user@dummy/remote
searching for changes
no changes found
pull from wrong ssh URL
$ hg pull -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/doesnotexist
pulling from ssh://user@dummy/doesnotexist
remote: abort: repository doesnotexist not found
abort: no suitable response from remote hg
[255]
local change
$ echo bleah > foo
$ hg ci -m "add"
updating rc
$ echo "default-push = ssh://user@dummy/remote" >> .hg/hgrc
$ echo "[ui]" >> .hg/hgrc
$ echo "ssh = \"$PYTHON\" \"$TESTDIR/dummyssh\"" >> .hg/hgrc
find outgoing
$ hg out ssh://user@dummy/remote
comparing with ssh://user@dummy/remote
searching for changes
changeset: 3:a28a9d1a809c
tag: tip
parent: 0:1160648e36ce
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add
find incoming on the remote side
$ hg incoming -R ../remote -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/local
comparing with ssh://user@dummy/local
searching for changes
changeset: 3:a28a9d1a809c
tag: tip
parent: 0:1160648e36ce
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add
find incoming on the remote side (using absolute path)
$ hg incoming -R ../remote -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" "ssh://user@dummy/`pwd`"
comparing with ssh://user@dummy/$TESTTMP/local
searching for changes
changeset: 3:a28a9d1a809c
tag: tip
parent: 0:1160648e36ce
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add
push
$ hg push
pushing to ssh://user@dummy/remote
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
$ cd $TESTTMP/remote
check remote tip
$ hg tip
changeset: 3:a28a9d1a809c
tag: tip
parent: 0:1160648e36ce
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 4 changesets with 3 changes to 2 files
$ hg cat -r tip foo
bleah
$ echo z > z
$ hg ci -A -m z z
created new head
test pushkeys and bookmarks
$ cd $TESTTMP/local
$ hg debugpushkey --config ui.ssh="\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote namespaces
bookmarks
namespaces
phases
$ hg book foo -r 0
$ hg out -B --config paths.default=bogus://invalid --config paths.default:pushurl=`hg paths default`
comparing with ssh://user@dummy/remote
searching for changed bookmarks
foo 1160648e36ce
$ hg push -B foo
pushing to ssh://user@dummy/remote
searching for changes
no changes found
exporting bookmark foo
[1]
$ hg debugpushkey --config ui.ssh="\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote bookmarks
foo 1160648e36cec0054048a7edc4110c6f84fde594
$ hg book -f foo
$ hg push --traceback
pushing to ssh://user@dummy/remote
searching for changes
no changes found
updating bookmark foo
[1]
$ hg book -d foo
$ hg in -B
comparing with ssh://user@dummy/remote
searching for changed bookmarks
foo a28a9d1a809c
$ hg book -f -r 0 foo
$ hg pull -B foo
pulling from ssh://user@dummy/remote
no changes found
updating bookmark foo
$ hg book -d foo
$ hg push -B foo
pushing to ssh://user@dummy/remote
searching for changes
no changes found
deleting remote bookmark foo
[1]
a bad, evil hook that prints to stdout
$ cat <<EOF > $TESTTMP/badhook
> import sys
> sys.stdout.write("KABOOM\n")
> sys.stdout.flush()
> EOF
$ cat <<EOF > $TESTTMP/badpyhook.py
> import sys
> def hook(ui, repo, hooktype, **kwargs):
> sys.stdout.write("KABOOM IN PROCESS\n")
> sys.stdout.flush()
> EOF
$ cat <<EOF >> ../remote/.hg/hgrc
> [hooks]
> changegroup.stdout = "$PYTHON" $TESTTMP/badhook
> changegroup.pystdout = python:$TESTTMP/badpyhook.py:hook
> EOF
$ echo r > r
$ hg ci -A -m z r
push should succeed even though it has an unexpected response
$ hg push
pushing to ssh://user@dummy/remote
searching for changes
remote has heads on branch 'default' that are not known locally: 6c0482d977a3
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
remote: KABOOM
remote: KABOOM IN PROCESS
$ hg -R ../remote heads
changeset: 5:1383141674ec
tag: tip
parent: 3:a28a9d1a809c
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: z
changeset: 4:6c0482d977a3
parent: 0:1160648e36ce
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: z
#if chg
try again with remote chg, which should succeed as well
$ hg rollback -R ../remote
repository tip rolled back to revision 4 (undo serve)
$ hg push --config ui.remotecmd=chg
pushing to ssh://user@dummy/remote
searching for changes
remote has heads on branch 'default' that are not known locally: 6c0482d977a3
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files (py3 !)
remote: KABOOM
remote: KABOOM IN PROCESS
remote: added 1 changesets with 1 changes to 1 files (no-py3 !)
#endif
clone bookmarks
$ hg -R ../remote bookmark test
$ hg -R ../remote bookmarks
* test 4:6c0482d977a3
$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote local-bookmarks
requesting all changes
adding changesets
adding manifests
adding file changes
added 6 changesets with 5 changes to 4 files (+1 heads)
new changesets 1160648e36ce:1383141674ec
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R local-bookmarks bookmarks
test 4:6c0482d977a3
passwords in ssh urls are not supported
(we use a glob here because different Python versions give different
results here)
$ hg push ssh://user:erroneouspwd@dummy/remote
pushing to ssh://user:*@dummy/remote (glob)
abort: password in URL not supported
[255]
$ cd $TESTTMP
hide outer repo
$ hg init
Test remote paths with spaces (issue2983):
$ hg init --ssh "\"$PYTHON\" \"$TESTDIR/dummyssh\"" "ssh://user@dummy/a repo"
$ touch "$TESTTMP/a repo/test"
$ hg -R 'a repo' commit -A -m "test"
adding test
$ hg -R 'a repo' tag tag
$ hg id --ssh "\"$PYTHON\" \"$TESTDIR/dummyssh\"" "ssh://user@dummy/a repo"
73649e48688a
$ hg id --ssh "\"$PYTHON\" \"$TESTDIR/dummyssh\"" "ssh://user@dummy/a repo#noNoNO"
abort: unknown revision 'noNoNO'
[255]
Test (non-)escaping of remote paths with spaces when cloning (issue3145):
$ hg clone --ssh "\"$PYTHON\" \"$TESTDIR/dummyssh\"" "ssh://user@dummy/a repo"
destination directory: a repo
abort: destination 'a repo' is not empty
[10]
Make sure hg is really paranoid in serve --stdio mode. It used to be
possible to get a debugger REPL by specifying a repo named --debugger.
$ hg -R --debugger serve --stdio
abort: potentially unsafe serve --stdio invocation: ['-R', '--debugger', 'serve', '--stdio']
[255]
$ hg -R --config=ui.debugger=yes serve --stdio
abort: potentially unsafe serve --stdio invocation: ['-R', '--config=ui.debugger=yes', 'serve', '--stdio']
[255]
Abbreviations of 'serve' also don't work, to avoid shenanigans.
$ hg -R narf serv --stdio
abort: potentially unsafe serve --stdio invocation: ['-R', 'narf', 'serv', '--stdio']
[255]
Test hg-ssh using a helper script that will restore PYTHONPATH (which might
have been cleared by a hg.exe wrapper) and invoke hg-ssh with the right
parameters:
$ cat > ssh.sh << EOF
> userhost="\$1"
> SSH_ORIGINAL_COMMAND="\$2"
> export SSH_ORIGINAL_COMMAND
> PYTHONPATH="$PYTHONPATH"
> export PYTHONPATH
> "$PYTHON" "$TESTDIR/../contrib/hg-ssh" "$TESTTMP/a repo"
> EOF
$ hg id --ssh "sh ssh.sh" "ssh://user@dummy/a repo"
73649e48688a
$ hg id --ssh "sh ssh.sh" "ssh://user@dummy/a'repo"
remote: Illegal repository "$TESTTMP/a'repo"
abort: no suitable response from remote hg
[255]
$ hg id --ssh "sh ssh.sh" --remotecmd hacking "ssh://user@dummy/a'repo"
remote: Illegal command "hacking -R 'a'\''repo' serve --stdio"
abort: no suitable response from remote hg
[255]
$ SSH_ORIGINAL_COMMAND="'hg' -R 'a'repo' serve --stdio" "$PYTHON" "$TESTDIR/../contrib/hg-ssh"
Illegal command "'hg' -R 'a'repo' serve --stdio": No closing quotation
[255]
Test hg-ssh in read-only mode:
$ cat > ssh.sh << EOF
> userhost="\$1"
> SSH_ORIGINAL_COMMAND="\$2"
> export SSH_ORIGINAL_COMMAND
> PYTHONPATH="$PYTHONPATH"
> export PYTHONPATH
> "$PYTHON" "$TESTDIR/../contrib/hg-ssh" --read-only "$TESTTMP/remote"
> EOF
$ hg clone --ssh "sh ssh.sh" "ssh://user@dummy/$TESTTMP/remote" read-only-local
requesting all changes
adding changesets
adding manifests
adding file changes
added 6 changesets with 5 changes to 4 files (+1 heads)
new changesets 1160648e36ce:1383141674ec
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd read-only-local
$ echo "baz" > bar
$ hg ci -A -m "unpushable commit" bar
$ hg push --ssh "sh ../ssh.sh"
pushing to ssh://user@dummy/*/remote (glob)
searching for changes
remote: Permission denied
remote: pretxnopen.hg-ssh hook failed
abort: push failed on remote
[255]
$ cd $TESTTMP
stderr from remote commands should be printed before stdout from local code (issue4336)
$ hg clone remote stderr-ordering
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd stderr-ordering
$ cat >> localwrite.py << EOF
> from mercurial import exchange, extensions
>
> def wrappedpush(orig, repo, *args, **kwargs):
> res = orig(repo, *args, **kwargs)
> repo.ui.write(b'local stdout\n')
> repo.ui.flush()
> return res
>
> def extsetup(ui):
> extensions.wrapfunction(exchange, b'push', wrappedpush)
> EOF
$ cat >> .hg/hgrc << EOF
> [paths]
> default-push = ssh://user@dummy/remote
> [ui]
> ssh = "$PYTHON" "$TESTDIR/dummyssh"
> [extensions]
> localwrite = localwrite.py
> EOF
$ echo localwrite > foo
$ hg commit -m 'testing localwrite'
$ hg push
pushing to ssh://user@dummy/remote
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
remote: KABOOM
remote: KABOOM IN PROCESS
local stdout
debug output
$ hg pull --debug ssh://user@dummy/remote --config devel.debug.peer-request=yes
pulling from ssh://user@dummy/remote
running .* ".*/dummyssh" ['"]user@dummy['"] ('|")hg -R remote serve --stdio('|") (re)
sending upgrade request: * proto=exp-ssh-v2-0003 (glob) (sshv2 !)
devel-peer-request: hello+between
devel-peer-request: pairs: 81 bytes
sending hello command
sending between command
remote: 463 (sshv1 !)
protocol upgraded to exp-ssh-v2-0003 (sshv2 !)
remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
remote: 1 (sshv1 !)
devel-peer-request: protocaps
devel-peer-request: caps: * bytes (glob)
sending protocaps command
query 1; heads
devel-peer-request: batched-content
devel-peer-request: - heads (0 arguments)
devel-peer-request: - known (1 arguments)
devel-peer-request: batch
devel-peer-request: cmds: 141 bytes
sending batch command
searching for changes
all remote heads known locally
no changes found
devel-peer-request: getbundle
devel-peer-request: bookmarks: 1 bytes
devel-peer-request: bundlecaps: 289 bytes
devel-peer-request: cg: 1 bytes
devel-peer-request: common: 122 bytes
devel-peer-request: heads: 122 bytes
devel-peer-request: listkeys: 9 bytes
devel-peer-request: phases: 1 bytes
sending getbundle command
bundle2-input-bundle: with-transaction
bundle2-input-part: "bookmarks" supported
bundle2-input-part: total payload size 26
bundle2-input-part: "listkeys" (params: 1 mandatory) supported
bundle2-input-part: total payload size 45
bundle2-input-part: "phase-heads" supported
bundle2-input-part: total payload size 72
bundle2-input-bundle: 3 parts total
checking for updated bookmarks
$ cd $TESTTMP
$ cat dummylog
Got arguments 1:user@dummy 2:hg -R nonexistent serve --stdio
Got arguments 1:user@dummy 2:hg -R nonexistent serve --stdio
Got arguments 1:user@dummy 2:hg -R $TESTTMP/nonexistent serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R local-stream serve --stdio (no-reposimplestore !)
Got arguments 1:user@dummy 2:hg -R remote serve --stdio (no-reposimplestore !)
Got arguments 1:user@dummy 2:hg -R remote serve --stdio (no-reposimplestore !)
Got arguments 1:user@dummy 2:hg -R doesnotexist serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R local serve --stdio
Got arguments 1:user@dummy 2:hg -R $TESTTMP/local serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
changegroup-in-remote hook: HG_BUNDLE2=1
HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=a28a9d1a809cab7d4e2fde4bee738a9ede948b60
HG_NODE_LAST=a28a9d1a809cab7d4e2fde4bee738a9ede948b60
HG_SOURCE=serve
HG_TXNID=TXN:$ID$
HG_TXNNAME=serve
HG_URL=remote:ssh:$LOCALIP
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
changegroup-in-remote hook: HG_BUNDLE2=1
HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=1383141674ec756a6056f6a9097618482fe0f4a6
HG_NODE_LAST=1383141674ec756a6056f6a9097618482fe0f4a6
HG_SOURCE=serve
HG_TXNID=TXN:$ID$
HG_TXNNAME=serve
HG_URL=remote:ssh:$LOCALIP
Got arguments 1:user@dummy 2:chg -R remote serve --stdio (chg !)
changegroup-in-remote hook: HG_BUNDLE2=1 (chg !)
HG_HOOKNAME=changegroup (chg !)
HG_HOOKTYPE=changegroup (chg !)
HG_NODE=1383141674ec756a6056f6a9097618482fe0f4a6 (chg !)
HG_NODE_LAST=1383141674ec756a6056f6a9097618482fe0f4a6 (chg !)
HG_SOURCE=serve (chg !)
HG_TXNID=TXN:$ID$ (chg !)
HG_TXNNAME=serve (chg !)
HG_URL=remote:ssh:$LOCALIP (chg !)
(chg !)
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
Got arguments 1:user@dummy 2:hg init 'a repo'
Got arguments 1:user@dummy 2:hg -R 'a repo' serve --stdio
Got arguments 1:user@dummy 2:hg -R 'a repo' serve --stdio
Got arguments 1:user@dummy 2:hg -R 'a repo' serve --stdio
Got arguments 1:user@dummy 2:hg -R 'a repo' serve --stdio
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
changegroup-in-remote hook: HG_BUNDLE2=1
HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=65c38f4125f9602c8db4af56530cc221d93b8ef8
HG_NODE_LAST=65c38f4125f9602c8db4af56530cc221d93b8ef8
HG_SOURCE=serve
HG_TXNID=TXN:$ID$
HG_TXNNAME=serve
HG_URL=remote:ssh:$LOCALIP
Got arguments 1:user@dummy 2:hg -R remote serve --stdio
remote hook failure is attributed to remote
$ cat > $TESTTMP/failhook << EOF
> def hook(ui, repo, **kwargs):
> ui.write(b'hook failure!\n')
> ui.flush()
> return 1
> EOF
$ echo "pretxnchangegroup.fail = python:$TESTTMP/failhook:hook" >> remote/.hg/hgrc
$ hg -q --config ui.ssh="\"$PYTHON\" $TESTDIR/dummyssh" clone ssh://user@dummy/remote hookout
$ cd hookout
$ touch hookfailure
$ hg -q commit -A -m 'remote hook failure'
$ hg --config ui.ssh="\"$PYTHON\" $TESTDIR/dummyssh" push
pushing to ssh://user@dummy/remote
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: hook failure!
remote: transaction abort!
remote: rollback completed
remote: pretxnchangegroup.fail hook failed
abort: push failed on remote
[255]
abort during pull is properly reported as such
$ echo morefoo >> ../remote/foo
$ hg -R ../remote commit --message "more foo to be pulled"
$ cat >> ../remote/.hg/hgrc << EOF
> [extensions]
> crash = ${TESTDIR}/crashgetbundler.py
> EOF
$ hg --config ui.ssh="\"$PYTHON\" $TESTDIR/dummyssh" pull
pulling from ssh://user@dummy/remote
searching for changes
remote: abort: this is an exercise
abort: pull failed on remote
[255]
abort with no error hint when there is a ssh problem when pulling
$ hg pull ssh://brokenrepository -e "\"$PYTHON\" \"$TESTDIR/dummyssh\""
pulling from ssh://brokenrepository/
abort: no suitable response from remote hg
[255]
abort with configured error hint when there is a ssh problem when pulling
$ hg pull ssh://brokenrepository -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" \
> --config ui.ssherrorhint="Please see http://company/internalwiki/ssh.html"
pulling from ssh://brokenrepository/
abort: no suitable response from remote hg
(Please see http://company/internalwiki/ssh.html)
[255]
test that custom environment is passed down to ssh executable
$ cat >>dumpenv <<EOF
> #! /bin/sh
> echo \$VAR >&2
> EOF
$ chmod +x dumpenv
$ hg pull ssh://something --config ui.ssh="sh dumpenv"
pulling from ssh://something/
remote:
abort: no suitable response from remote hg
[255]
$ hg pull ssh://something --config ui.ssh="sh dumpenv" --config sshenv.VAR=17
pulling from ssh://something/
remote: 17
abort: no suitable response from remote hg
[255]