comparison tests/test-alias.t @ 29087:ad1bdea43965

dispatch: defer environment variable resolution in alias commands (BC)

Before this patch, if there are environment variables in an alias command,
they will be expanded immediately when we first see the alias.

This will cause issues with chg, because environment variable updates will
not propagate to expanded arguments.

This patch makes "args" of "cmdalias" a property that will be calculated
every time when accessed.

29086:fe50341de1ff

   update        update working directory (or switch revisions)
  
  (use "hg help" for the full list of commands or "hg -v" for details)
  [255]

This should show id:

  $ hg --config alias.log='id' log
  000000000000 tip

29087:ad1bdea43965

   update        update working directory (or switch revisions)
  
  (use "hg help" for the full list of commands or "hg -v" for details)
  [255]

environment variable changes in alias commands

  $ cat > $TESTTMP/setcount.py <<EOF
  > import os
  > def uisetup(ui):
  >     os.environ['COUNT'] = '2'
  > EOF

  $ cat >> $HGRCPATH <<'EOF'
  > [extensions]
  > setcount = $TESTTMP/setcount.py
  > [alias]
  > showcount = log -T "$COUNT\n" -r .
  > EOF

  $ COUNT=1 hg showcount
  2

This should show id:

  $ hg --config alias.log='id' log
  000000000000 tip