tests/test-revert

Don't abort when backup files already exist. Don't allow alternative names.
Rationale:
- When the user wants to revert, he shouldn't be stopped from doing
  this just because some old backups will be overwritten.
- To not clobber important files by accident, alternative names for backup
  files were disabled. As the backup target now has a fixed name, the user
  doesn't have to be informed about the backup copy (unless --verbose)

#!/bin/sh

hg init
echo 123 > a
echo 123 > c
echo 123 > e
hg add a c e
hg commit -m "first" -d "1000000 0" a c e
echo 123 > b
echo %% should show b unknown
hg status
echo 12 > c
echo %% should show b unknown and c modified
hg status
hg add b
echo %% should show b added and c modified
hg status
hg rm a
echo %% should show a removed, b added and c modified
hg status
hg revert a
echo %% should show b added, copy saved, and c modified
hg status
hg revert b
echo %% should show b unknown, b.orig unknown, and c modified
hg status
hg revert --no-backup c
echo %% should show unknown: b b.orig
hg status
echo %% should show a b b.orig c e
ls
echo %% should verbosely save backup to e.orig
echo z > e
hg revert -v
echo %% should say no changes needed
hg revert a
echo %% should say file not managed
echo q > q
hg revert q
echo %% should say file not found
hg revert notfound

true