#testcases obsstore-off obsstore-on

  $ cat << EOF >> $HGRCPATH

  > [extensions]

  > amend =

  > EOF

#if obsstore-on

  $ cat << EOF >> $HGRCPATH

  > [experimental]

  > evolution.createmarkers = True

  > EOF

#endif

Prepare parent repo

-------------------

  $ hg init r

  $ cd r

  $ echo a > a

  $ hg ci -Am0

  adding a

Link first subrepo

------------------

  $ echo 's = s' >> .hgsub

  $ hg add .hgsub

  $ hg init s

amend without .hgsub

  $ hg amend s

  abort: can't commit subrepos without .hgsub

  [255]

amend with subrepo

  $ hg amend

  saved backup bundle to * (glob) (obsstore-off !)

  $ hg status --change .

  A .hgsub

  A .hgsubstate

  A a

  $ cat .hgsubstate

  0000000000000000000000000000000000000000 s

Update subrepo

--------------

add new commit to be amended

  $ echo a >> a

  $ hg ci -m1

amend with dirty subrepo

  $ echo a >> s/a

  $ hg add -R s

  adding s/a

  $ hg amend

  abort: uncommitted changes in subrepository "s"

  (use --subrepos for recursive commit)

  [255]

amend with modified subrepo

  $ hg ci -R s -m0

  $ hg amend

  saved backup bundle to * (glob) (obsstore-off !)

  $ hg status --change .

  M .hgsubstate

  M a

  $ cat .hgsubstate

  f7b1eb17ad24730a1651fccd46c43826d1bbc2ac s

revert subrepo change

  $ hg up -R s -q null

  $ hg amend

  saved backup bundle to * (glob) (obsstore-off !)

  $ hg status --change .

  M a

Link another subrepo

--------------------

add new commit to be amended

  $ echo b >> b

  $ hg ci -qAm2

also checks if non-subrepo change is included

  $ echo a >> a

amend with another subrepo

  $ hg init t

  $ echo b >> t/b

  $ hg ci -R t -Am0

  adding b

  $ echo 't = t' >> .hgsub

  $ hg amend

  saved backup bundle to * (glob) (obsstore-off !)

  $ hg status --change .

  M .hgsub

  M .hgsubstate

  M a

  A b

  $ cat .hgsubstate

  0000000000000000000000000000000000000000 s

  bfb1a4fb358498a9533dabf4f2043d94162f1fcd t

Unlink one subrepo

------------------

add new commit to be amended

  $ echo a >> a

  $ hg ci -m3

amend with one subrepo dropped

  $ echo 't = t' > .hgsub

  $ hg amend

  saved backup bundle to * (glob) (obsstore-off !)

  $ hg status --change .

  M .hgsub

  M .hgsubstate

  M a

  $ cat .hgsubstate

  bfb1a4fb358498a9533dabf4f2043d94162f1fcd t

Unlink subrepos completely

--------------------------

add new commit to be amended

  $ echo a >> a

  $ hg ci -m3

amend with .hgsub removed

  $ hg rm .hgsub

  $ hg amend

  saved backup bundle to * (glob) (obsstore-off !)

  $ hg status --change .

  M a

  R .hgsub

  R .hgsubstate

  $ cd ..