With this flag, reset will overwrite any local changes. Useful e.g.
when undoing a push that has polluted the index+worktree with a heap
of conflicts.
Signed-off-by: Karl Hasselström <kha@treskal.com>
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
+from stgit.argparse import opt
from stgit.commands import common
from stgit.lib import git, log, transaction
from stgit.out import out
help = 'Reset the patch stack to an earlier state'
kind = 'stack'
-usage = ['<state> [<patchnames>]']
+usage = ['[options] <state> [<patchnames>]']
description = """
Reset the patch stack to an earlier state. The state is specified with
a commit from a stack log; for a branch foo, StGit stores the stack
If one or more patch names are given, reset only those patches, and
leave the rest alone."""
-options = []
+options = [
+ opt('--hard', action = 'store_true',
+ short = 'Discard changes in your index/worktree')]
directory = common.DirectoryHasRepositoryLib()
-def reset_stack(stack, iw, state, only_patches):
+def reset_stack(stack, iw, state, only_patches, hard):
only_patches = set(only_patches)
def mask(s):
if only_patches:
patches_to_reset = mask(set(state.applied + state.unapplied + state.hidden))
existing_patches = set(stack.patchorder.all)
to_delete = mask(existing_patches - patches_to_reset)
- trans = transaction.StackTransaction(stack, 'reset')
+ trans = transaction.StackTransaction(stack, 'reset', discard_changes = hard)
# If we have to change the stack base, we need to pop all patches
# first.
state = log.get_log_entry(stack.repository, ref)
else:
raise common.CmdException('Wrong number of arguments')
- return reset_stack(stack, stack.repository.default_iw, state, patches)
+ return reset_stack(stack, stack.repository.default_iw, state, patches,
+ options.hard)
env = property(lambda self: utils.add_dict(self.__index.env,
self.__worktree.env))
cwd = property(lambda self: self.__worktree.directory)
+ def checkout_hard(self, tree):
+ assert isinstance(tree, Tree)
+ self.run(['git', 'read-tree', '--reset', '-u', tree.sha1]
+ ).discard_output()
def checkout(self, old_tree, new_tree):
# TODO: Optionally do a 3-way instead of doing nothing when we
# have a problem. Or maybe we should stash changes in a patch?
method. This will either succeed in writing the updated state to
your refs and index+worktree, or fail without having done
anything."""
- def __init__(self, stack, msg, allow_conflicts = False):
+ def __init__(self, stack, msg, discard_changes = False,
+ allow_conflicts = False):
+ """Create a new L{StackTransaction}.
+
+ @param discard_changes: Discard any changes in index+worktree
+ @type discard_changes: bool
+ @param allow_conflicts: Whether to allow pre-existing conflicts
+ @type allow_conflicts: bool or function of L{StackTransaction}"""
self.__stack = stack
self.__msg = msg
self.__patches = _TransPatchMap(stack)
self.__error = None
self.__current_tree = self.__stack.head.data.tree
self.__base = self.__stack.base
+ self.__discard_changes = discard_changes
if isinstance(allow_conflicts, bool):
self.__allow_conflicts = lambda trans: allow_conflicts
else:
'This can happen if you modify a branch with git.',
'"stg repair --help" explains more about what to do next.')
self.__abort()
- if self.__current_tree == tree:
+ if self.__current_tree == tree and not self.__discard_changes:
# No tree change, but we still want to make sure that
# there are no unresolved conflicts. Conflicts
# conceptually "belong" to the topmost patch, and just
out.error('Need to resolve conflicts first')
self.__abort()
assert iw != None
- iw.checkout(self.__current_tree, tree)
+ if self.__discard_changes:
+ iw.checkout_hard(tree)
+ else:
+ iw.checkout(self.__current_tree, tree)
self.__current_tree = tree
@staticmethod
def __abort():
--- /dev/null
+#!/bin/sh
+
+test_description='Simple test cases for "stg reset"'
+
+. ./test-lib.sh
+
+# Ignore our own output files.
+cat > .git/info/exclude <<EOF
+/expected.txt
+/actual.txt
+EOF
+
+test_expect_success 'Initialize StGit stack with three patches' '
+ stg init &&
+ echo 000 >> a &&
+ git add a &&
+ git commit -m a &&
+ echo 111 >> a &&
+ git commit -a -m p1 &&
+ echo 222 >> a &&
+ git commit -a -m p2 &&
+ echo 333 >> a &&
+ git commit -a -m p3 &&
+ stg uncommit -n 3
+'
+
+cat > expected.txt <<EOF
+C a
+EOF
+test_expect_success 'Pop middle patch, creating a conflict' '
+ conflict_old stg pop p2 &&
+ stg status a > actual.txt &&
+ test_cmp expected.txt actual.txt &&
+ test "$(echo $(stg series))" = "+ p1 > p3 - p2"
+'
+
+test_expect_success 'Try to reset without --hard' '
+ command_error stg reset master.stgit^~1 &&
+ stg status a > actual.txt &&
+ test_cmp expected.txt actual.txt &&
+ test "$(echo $(stg series))" = "+ p1 > p3 - p2"
+'
+
+cat > expected.txt <<EOF
+EOF
+test_expect_success 'Try to reset with --hard' '
+ stg reset --hard master.stgit^~1 &&
+ stg status a > actual.txt &&
+ test_cmp expected.txt actual.txt &&
+ test "$(echo $(stg series))" = "> p1 - p3 - p2"
+'
+
+test_done