kernel/git - git - PowerEL Git System

Author	SHA1	Message	Date
Christian Couder	812d2a3d61	reset: disallow using --keep when there are unmerged entries The use case for --keep option is to remove previous commits unrelated to the current changes in the working tree. So in this use case we are not supposed to have unmerged entries. This is why it seems safer to just disallow using --keep when there are unmerged entries. And this patch changes the error message when --keep was disallowed and there were some unmerged entries from: error: Entry 'file1' would be overwritten by merge. Cannot merge. fatal: Could not reset index file to revision 'HEAD^'. to: fatal: Cannot do a keep reset in the middle of a merge. which is nicer. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Christian Couder	ffbc5dc2d0	reset: add test cases for "--keep" option This shows that with the "--keep" option, changes that are both in the work tree and the index are kept in the work tree after the reset (but discarded in the index). In the case of unmerged entries, we can see that "git reset --keep" works only when the target state is the same as HEAD. And then the work tree is not reset. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Junio C Hamano	e11d7b5969	"reset --merge": fix unmerged case Commit `9e8ecea` (Add 'merge' mode to 'git reset', 2008-12-01) disallowed "git reset --merge" when there was unmerged entries. But it wished if unmerged entries were reset as if --hard (instead of --merge) has been used. This makes sense because all "mergy" operations makes sure that any path involved in the merge does not have local modifications before starting, so resetting such a path away won't lose any information. The previous commit changed the behavior of --merge to accept resetting unmerged entries if they are reset to a different state than HEAD, but it did not reset the changes in the work tree, leaving the conflict markers in the resulting file in the work tree. Fix it by doing three things: - Update the documentation to match the wish of original "reset --merge" better, namely, "An unmerged entry is a sign that the path didn't have any local modification and can be safely resetted to whatever the new HEAD records"; - Update read_index_unmerged(), which reads the index file into the cache while dropping any higher-stage entries down to stage #0, not to copy the object name from the higher stage entry. The code used to take the object name from the a stage entry ("base" if you happened to have stage #1, or "ours" if both sides added, etc.), which essentially meant that you are getting random results depending on what the merge did. The _only_ reason we want to keep a previously unmerged entry in the index at stage #0 is so that we don't forget the fact that we have corresponding file in the work tree in order to be able to remove it when the tree we are resetting to does not have the path. In order to differentiate such an entry from ordinary cache entry, the cache entry added by read_index_unmerged() is marked as CE_CONFLICTED. - Update merged_entry() and deleted_entry() so that they pay attention to cache entries marked as CE_CONFLICTED. They are previously unmerged entries, and the files in the work tree that correspond to them are resetted away by oneway_merge() to the version from the tree we are resetting to. Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Stephan Beyer	d0f379c2dc	reset: use "unpack_trees()" directly instead of "git read-tree" This patch makes "reset_index_file()" call "unpack_trees()" directly instead of forking and execing "git read-tree". So the code is more efficient. And it's also easier to see which unpack_tree() options will be used, as we don't need to follow "git read-tree"'s command line parsing which is quite complex. As Daniel Barkalow found, there is a difference between this new version and the old one. The old version gives an error for "git reset --merge" with unmerged entries, and the new version does not when we reset the entries to some states that differ from HEAD. Instead, it resets the index entry and succeeds, while leaving the conflict markers in the corresponding file in the work tree (which will be corrected by the next patch). The code comes from the sequencer GSoC project: git://repo.or.cz/git/sbeyer.git (at commit 5a78908b70ceb5a4ea9fd4b82f07ceba1f019079) Mentored-by: Daniel Barkalow <barkalow@iabervon.org> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Christian Couder	c93966906f	reset: add a few tests for "git reset --merge" Commit `9e8eceab` ("Add 'merge' mode to 'git reset'", 2008-12-01), added the --merge option to git reset, but there were no test cases for it. This was not a big problem because "git reset" was just forking and execing "git read-tree", but this will change in a following patch. So let's add a few test cases to make sure that there will be no regression. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago