test-mq-subrepo.t: correctly forward stdin to test functions

- stdin was not forwarded in testrm1 and testrm2
- Forwarding content with EOL using command substitution (`foo`) does not work
  correctly, the lines are joined together which breaks the prompt readline.
- EOFError is raised in ui.prompt() if the input is too short on Linux while
  OSX treats it as an empty line.

tests/test-mq-subrepo.t

@@ -1,342 +1,347
   $ echo "[extensions]" >> $HGRCPATH
   $ echo "mq=" >> $HGRCPATH
   $ echo "record=" >> $HGRCPATH
   $ echo "[diff]" >> $HGRCPATH
   $ echo "nodates=1" >> $HGRCPATH
 
+  $ stdin=`pwd`/stdin.tmp
+
 fn to create new repository w/dirty subrepo, and cd into it
   $ mkrepo() {
   >     hg init $1
   >     cd $1
   >     hg qinit
   > }
 
 fn to create dirty subrepo
   $ mksubrepo() {
   >     hg init $1
   >     cd $1
   >     echo a > a
   >     hg add
   >     cd ..
   > }
 
   $ testadd() {
-  >     local stdin=`cat`
+  >     cat - > "$stdin"
   >     mksubrepo sub
   >     echo sub = sub >> .hgsub
   >     hg add .hgsub
   >     echo % abort when adding .hgsub w/dirty subrepo
   >     hg status -S
   >     echo '%' $*
-  >     echo "$stdin" | hg $*
+  >     cat "$stdin" | hg $*
   >     echo [$?]
   >     hg -R sub ci -m0sub
   >     echo % update substate when adding .hgsub w/clean updated subrepo
   >     hg status -S
   >     echo '%' $*
-  >     echo "$stdin" | hg $*
+  >     cat "$stdin" | hg $*
   >     hg debugsub
   > }
 
   $ testmod() {
-  >     local stdin=`cat`
+  >     cat - > "$stdin"
   >     mksubrepo sub2
   >     echo sub2 = sub2 >> .hgsub
   >     echo % abort when modifying .hgsub w/dirty subrepo
   >     hg status -S
   >     echo '%' $*
-  >     echo "$stdin" | hg $*
+  >     cat "$stdin" | hg $*
   >     echo [$?]
   >     hg -R sub2 ci -m0sub2
   >     echo % update substate when modifying .hgsub w/clean updated subrepo
   >     hg status -S
   >     echo '%' $*
-  >     echo "$stdin" | hg $*
+  >     cat "$stdin" | hg $*
   >     hg debugsub
   > }
 
   $ testrm1() {
+  >     cat - > "$stdin"
   >     mksubrepo sub3
   >     echo sub3 = sub3 >> .hgsub
   >     hg ci -Aqmsub3
   >     $EXTRA
   >     echo b >> sub3/a
   >     hg rm .hgsub
   >     echo % update substate when removing .hgsub w/dirty subrepo
   >     hg status -S
   >     echo '%' $*
-  >     echo "$stdin" | hg $*
+  >     cat "$stdin" | hg $*
   >     echo % debugsub should be empty
   >     hg debugsub
   > }
+
   $ testrm2() {
+  >     cat - > "$stdin"
   >     mksubrepo sub4
   >     echo sub4 = sub4 >> .hgsub
   >     hg ci -Aqmsub4
   >     $EXTRA
   >     hg rm .hgsub
   >     echo % update substate when removing .hgsub w/clean updated subrepo
   >     hg status -S
   >     echo '%' $*
-  >     echo "$stdin" | hg $*
+  >     cat "$stdin" | hg $*
   >     echo % debugsub should be empty
   >     hg debugsub
   > }
 
 
 handle subrepos safely on qnew
 
   $ mkrepo repo-2499-qnew
   $ testadd qnew -m0 0.diff
   adding a
   % abort when adding .hgsub w/dirty subrepo
   A .hgsub
   A sub/a
   % qnew -m0 0.diff
   abort: uncommitted changes in subrepository sub
   [255]
   % update substate when adding .hgsub w/clean updated subrepo
   A .hgsub
   % qnew -m0 0.diff
   committing subrepository sub
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
 
   $ testmod qnew -m1 1.diff
   adding a
   % abort when modifying .hgsub w/dirty subrepo
   M .hgsub
   A sub2/a
   % qnew -m1 1.diff
   abort: uncommitted changes in subrepository sub2
   [255]
   % update substate when modifying .hgsub w/clean updated subrepo
   M .hgsub
   % qnew -m1 1.diff
   committing subrepository sub2
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
   path sub2
    source   sub2
    revision 1f94c7611cc6b74f5a17b16121a1170d44776845
 
   $ hg qpop -qa
   patch queue now empty
   $ testrm1 qnew -m2 2.diff
   adding a
   % update substate when removing .hgsub w/dirty subrepo
   M sub3/a
   R .hgsub
   % qnew -m2 2.diff
   % debugsub should be empty
 
   $ hg qpop -qa
   patch queue now empty
   $ testrm2 qnew -m3 3.diff
   adding a
   % update substate when removing .hgsub w/clean updated subrepo
   R .hgsub
   % qnew -m3 3.diff
   % debugsub should be empty
 
   $ cd ..
 
 
 handle subrepos safely on qrefresh
 
   $ mkrepo repo-2499-qrefresh
   $ hg qnew -m0 0.diff
   $ testadd qrefresh
   adding a
   % abort when adding .hgsub w/dirty subrepo
   A .hgsub
   A sub/a
   % qrefresh
   abort: uncommitted changes in subrepository sub
   [255]
   % update substate when adding .hgsub w/clean updated subrepo
   A .hgsub
   % qrefresh
   committing subrepository sub
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
 
   $ hg qnew -m1 1.diff
   $ testmod qrefresh
   adding a
   % abort when modifying .hgsub w/dirty subrepo
   M .hgsub
   A sub2/a
   % qrefresh
   abort: uncommitted changes in subrepository sub2
   [255]
   % update substate when modifying .hgsub w/clean updated subrepo
   M .hgsub
   % qrefresh
   committing subrepository sub2
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
   path sub2
    source   sub2
    revision 1f94c7611cc6b74f5a17b16121a1170d44776845
 
   $ hg qpop -qa
   patch queue now empty
   $ EXTRA='hg qnew -m2 2.diff' testrm1 qrefresh
   adding a
   % update substate when removing .hgsub w/dirty subrepo
   M sub3/a
   R .hgsub
   % qrefresh
   % debugsub should be empty
 
   $ hg qpop -qa
   patch queue now empty
   $ EXTRA='hg qnew -m3 3.diff' testrm2 qrefresh
   adding a
   % update substate when removing .hgsub w/clean updated subrepo
   R .hgsub
   % qrefresh
   % debugsub should be empty
 
   $ cd ..
 
 
 handle subrepos safely on qpush/qpop
 
   $ mkrepo repo-2499-qpush
   $ mksubrepo sub
   adding a
   $ hg -R sub ci -m0sub
   $ echo sub = sub > .hgsub
   $ hg add .hgsub
   $ hg qnew -m0 0.diff
   committing subrepository sub
   $ hg debugsub
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
 
 qpop
   $ hg qpop
   popping 0.diff
   patch queue now empty
   $ hg status -AS
   $ hg debugsub
 
 qpush
   $ hg qpush
   applying 0.diff
   now at: 0.diff
   $ hg status -AS
   C .hgsub
   C .hgsubstate
   C sub/a
   $ hg debugsub
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
 
   $ cd ..
 
 
 handle subrepos safely on qrecord
 
   $ mkrepo repo-2499-qrecord
   $ testadd qrecord --config ui.interactive=1 -m0 0.diff <<EOF
   > y
   > y
   > EOF
   adding a
   % abort when adding .hgsub w/dirty subrepo
   A .hgsub
   A sub/a
   % qrecord --config ui.interactive=1 -m0 0.diff
   diff --git a/.hgsub b/.hgsub
   new file mode 100644
   examine changes to '.hgsub'? [Ynsfdaq?] 
   abort: uncommitted changes in subrepository sub
   [255]
   % update substate when adding .hgsub w/clean updated subrepo
   A .hgsub
   % qrecord --config ui.interactive=1 -m0 0.diff
   diff --git a/.hgsub b/.hgsub
   new file mode 100644
   examine changes to '.hgsub'? [Ynsfdaq?] 
   committing subrepository sub
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
 
   $ testmod qrecord --config ui.interactive=1 -m1 1.diff <<EOF
   > y
   > y
   > EOF
   adding a
   % abort when modifying .hgsub w/dirty subrepo
   M .hgsub
   A sub2/a
   % qrecord --config ui.interactive=1 -m1 1.diff
   diff --git a/.hgsub b/.hgsub
   1 hunks, 1 lines changed
   examine changes to '.hgsub'? [Ynsfdaq?] 
   @@ -1,1 +1,2 @@
    sub = sub
   +sub2 = sub2
   record this change to '.hgsub'? [Ynsfdaq?] 
   abort: uncommitted changes in subrepository sub2
   [255]
   % update substate when modifying .hgsub w/clean updated subrepo
   M .hgsub
   % qrecord --config ui.interactive=1 -m1 1.diff
   diff --git a/.hgsub b/.hgsub
   1 hunks, 1 lines changed
   examine changes to '.hgsub'? [Ynsfdaq?] 
   @@ -1,1 +1,2 @@
    sub = sub
   +sub2 = sub2
   record this change to '.hgsub'? [Ynsfdaq?] 
   committing subrepository sub2
   path sub
    source   sub
    revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
   path sub2
    source   sub2
    revision 1f94c7611cc6b74f5a17b16121a1170d44776845
 
   $ hg qpop -qa
   patch queue now empty
   $ EXTRA= testrm1 qrecord --config ui.interactive=1 -m2 2.diff <<EOF
   > y
   > y
   > EOF
   adding a
   % update substate when removing .hgsub w/dirty subrepo
   M sub3/a
   R .hgsub
   % qrecord --config ui.interactive=1 -m2 2.diff
   diff --git a/.hgsub b/.hgsub
   deleted file mode 100644
   examine changes to '.hgsub'? [Ynsfdaq?] 
   % debugsub should be empty
 
   $ hg qpop -qa
   patch queue now empty
   $ EXTRA= testrm2 qrecord --config ui.interactive=1 -m3 3.diff <<EOF
   > y
   > y
   > EOF
   adding a
   % update substate when removing .hgsub w/clean updated subrepo
   R .hgsub
   % qrecord --config ui.interactive=1 -m3 3.diff
   diff --git a/.hgsub b/.hgsub
   deleted file mode 100644
   examine changes to '.hgsub'? [Ynsfdaq?] 
   % debugsub should be empty
 
   $ cd ..