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2010-09-29merge-recursive: Delay modify/delete conflicts if D/F conflict presentLibravatar Elijah Newren1-0/+9
When handling merges with modify/delete conflicts, if the modified path is involved in a D/F conflict, handle the issue in process_df_entry() rather than process_entry(). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Delay content merging for renamesLibravatar Elijah Newren2-37/+16
Move the handling of content merging for renames from process_renames() to process_df_entry(). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Delay handling of rename/delete conflictsLibravatar Elijah Newren1-2/+20
Move the handling of rename/delete conflicts from process_renames() to process_df_entry(). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Move handling of double rename of one file to other fileLibravatar Elijah Newren1-26/+6
Move the handling of rename/rename conflicts where one file is renamed on both sides to the same file, from process_renames() to process_entry(). Here we avoid the three way merge logic by just using update_stages_and_entry() to move the higher stage entries in the index from the rename source to the rename destination, and then allow process_entry() to do its magic. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Move handling of double rename of one file to twoLibravatar Elijah Newren2-17/+42
Move the handling of rename/rename conflicts where one file is renamed to two different files, from process_renames() to process_df_entry(). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Avoid doubly merging rename/add conflict contentsLibravatar Elijah Newren2-2/+3
When a commit moves A to B while another commit created B (or moved C to B), and these two different commits serve as different merge-bases for a later merge, c94736a (merge-recursive: don't segfault while handling rename clashes 2009-07-30) added some special code to avoid segfaults. Since that commit, the two versions of B are merged in place (which could be potentially conflicting) and the intermediate result is used as the virtual ancestor. However, right before this special merge, try_merge was turned on, meaning that process_renames() would try an alternative merge that ignores the 'add' part of the conflict, and, if the merge is clean, store that as the new virtual ancestor. This could cause incorrect merging of criss-cross merges; it would typically result in just recording a slightly confusing merge base, but in some cases it could cause silent acceptance of one side of a merge as the final resolution when a conflict should have been flagged. When we do a special merge for such a rename/add conflict between merge-bases, turn try_merge off to avoid an inappropriate second merge. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Update merge_content() call signatureLibravatar Elijah Newren1-2/+4
Enable calling merge_content() and providing more information about renames and D/F conflicts (which we will want to do from process_df_entry()). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Update conflict_rename_rename_1to2() call signatureLibravatar Elijah Newren1-9/+9
To facilitate having this function called later using information stored in a rename_df_conflict_info struct, accept a diff_filepair instead of a rename. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Structure process_df_entry() to handle more casesLibravatar Elijah Newren1-36/+47
Modify process_df_entry() (mostly just indentation level changes) to get it ready for handling more D/F conflict type cases. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Have process_entry() skip D/F or rename entriesLibravatar Elijah Newren1-0/+3
If an entry has an associated rename_df_conflict_info, skip it and allow it to be processed by process_df_entry(). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: New function to assist resolving renames in-core onlyLibravatar Elijah Newren1-3/+30
process_renames() and process_entry() have nearly identical code for doing three-way file merging to resolve content changes. Since we are already deferring some of the current rename handling in order to better handle D/F conflicts, it seems to make sense to defer content merging as well and remove the (nearly) duplicated code sections for handling this merging. To facilitate this process, add a new update_stages_and_entry() function which will map the higher stage index entries from two files involved in a rename into the resulting rename destination's index entries, and update the associated stage_data structure. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: New data structures for deferring of D/F conflictsLibravatar Elijah Newren1-0/+44
Since we need to resolve paths (including renames) in-core first and defer checking of D/F conflicts (namely waiting to see if directories are still in the way after all paths are resolved) before updating files involved in D/F conflicts, we will need to first process_renames, then record some information about the rename needed at D/F resolution time, and then make use of that information when resolving D/F conflicts at the end. This commit adds some relevant data structures for storing the necessary information. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Move process_entry's content merging into a functionLibravatar Elijah Newren1-28/+43
This move is in preparation for merge_content growing and being called from multiple places in order to handle D/F conflicts. I also snuck in a small change to the output in the case that the merged content for the file matches the current file contents, to make it better match (and thus more able to take over) how other merge_file() calls in process_renames() are handled. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Move delete/modify handling into dedicated functionLibravatar Elijah Newren1-13/+22
This move is in preparation for the function being called from multiple places in order to handle D/F conflicts. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Move rename/delete handling into dedicated functionLibravatar Elijah Newren1-11/+20
This move is in preparation for the function growing and being called from multiple places in order to handle D/F conflicts. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Nuke rename/directory conflict detectionLibravatar Elijah Newren1-18/+0
Since we want to resolve merges in-core and then detect at the end whether D/F conflicts remain in the way, we should just apply renames in-core and let logic elsewhere check for D/F conflicts. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Rename conflict_rename_rename*() for clarityLibravatar Elijah Newren1-12/+14
The names conflict_rename_rename and conflict_rename_rename_2 did not make it clear what they were handling. Since the first of these handles one file being renamed in both branches to different files, while the latter handles two different files being renamed to the same thing, add a little '1to2' and '2to1' suffix on these and an explanatory comment to make their intent clearer. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Small code clarification -- variable name and commentsLibravatar Elijah Newren1-6/+14
process_renames() had a variable named "stage" and derived variables src_other and dst_other whose purpose was not immediately obvious; also, I want to extend the scope of this variable and use it later, so it should have a more descriptive name. Do so, and add a brief comment explaining how it is used and what it relates to. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6036: Add testcase for undetected conflictLibravatar Elijah Newren1-0/+85
If merging two lines of development involves a rename/add conflict, and two different people make such a merge but resolve it differently, and then someone tries to merge the resulting two merges, then they should clearly get a conflict due to the different resolutions from the previous developers. However, in some such cases the conflict would not be detected and git would silently accept one of the two versions being merged as the final merge resolution. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6036: Add a second testcase similar to the first but with content changesLibravatar Elijah Newren1-0/+76
c94736a (merge-recursive: don't segfault while handling rename clashes 2009-07-30) added t6036 with a testcase that involved dual renames and a criss-cross merge. Add a test that is nearly identical, but which also involves content modification -- a case git currently does not merge correctly. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6036: Test index and worktree state, not just that merge failsLibravatar Elijah Newren1-3/+21
c94736a (merge-recursive: don't segfault while handling rename clashes 2009-07-30) added this testcase with an interesting corner case test, which previously had cased git to segfault. This test ensures that the segfault does not return and that the merge correctly fails; just add some checks that verify the state of the index and worktree after the merge are correct. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6020: Add a testcase for modify/delete + directory/file conflictLibravatar Elijah Newren1-0/+47
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6020: Modernize style a bitLibravatar Elijah Newren1-15/+20
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6022: Add tests for rename/rename combined with D/F conflictsLibravatar Elijah Newren1-0/+79
Add tests where one file is renamed to two different paths in different sides of history, and where each of the new files matches the name of a directory from the opposite side of history. Include tests for both the case where the merge results in those directories not being cleanly removed, and where those directories are cleanly removed during the merge. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6022: Add paired rename+D/F conflict: (two/file, one/file) -> (one, two)Libravatar Elijah Newren1-0/+63
An interesting testcase is having two files each in their own subdirectory getting renamed to the toplevel at the directory pathname of the other. Questions arise as to whether the order of operations matters and whether the directories can correctly get out of the way and make room for the new files. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6022: Add tests with both rename source & dest involved in D/F conflictsLibravatar Elijah Newren1-0/+38
Having the source of a rename be involved in a directory/file conflict does not currently pose any difficulties to the current merge-recursive algorithm (in contrast to destinations of renames and D/F conflicts). However, combining the two seemed like good testcases to include for completeness. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6022: Add tests for reversing order of merges when D/F conflicts presentLibravatar Elijah Newren1-0/+58
When merging two branches with some path involved in a D/F conflict, the choice of which branch to merge into the other matters for (at least) two reasons: (1) whether the working copy has a directory full of files that is in the way of a file, or a file exists that is in the way of a directory of files, (2) when the directory full of files does not disappear due to the merge, what files at the same paths should be renamed to (e.g. filename~HEAD vs. filename~otherbranch). Add some tests that reverse the merge order of two other tests, and which verify the contents are as expected (namely, that the results are identical other than modified-for-uniqueness filenames involving branch names). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6022: Add test combinations of {content conflict?, D/F conflict remains?}Libravatar Elijah Newren1-0/+128
Add testing of the various ways that a renamed file to a path involved in a directory/file conflict may be involved in. This includes whether or not there are conflicts of the contents of the renamed file (if the file was modified on both sides of history), and whether the directory from the other side of the merge will disappear as a result of the merge or not. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t6032: Add a test checking for excessive output from mergeLibravatar Elijah Newren1-0/+30
Previous D/F fixes I submitted (5a2580d and ae74548) had caused merge to become excessively spammy, which was fixed in 96ecac6 (merge-recursive: Avoid excessive output for and reprocessing of renames 2010-08-20). Add a new test to avoid repeating that mistake with my several upcoming changes. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29merge-recursive: Restructure showing how to chain more process_* functionsLibravatar Junio C Hamano1-3/+8
In 3734893 (merge-recursive: Fix D/F conflicts 2010-07-09), process_df_entry() was added to process_renames() and process_entry() but in a somewhat restrictive manner. Modify the code slightly to make it clearer how we could chain more such functions if necessary, and alter process_df_entry() to handle such chaining. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29t3030: Add a testcase for resolvable rename/add conflict with symlinksLibravatar Schalk, Ken1-1/+36
d5af510 (RE: [PATCH] Avoid rename/add conflict when contents are identical 2010-09-01) avoided erroring out in a rename/add conflict when the contents were identical. A simpler fix could have handled that particular testcase, but it would not correctly handle the case where a symlink is involved. Add another testcase using symlinks, to avoid breaking that case. Signed-off-by: Ken Schalk <ken.schalk@intel.com> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29Merge branch 'en/rename-d-f' into en/merge-recursiveLibravatar Junio C Hamano2-8/+74
* en/rename-d-f: merge-recursive: D/F conflicts where was_a_dir/file -> was_a_dir t3509: Add rename + D/F conflict testcase that recursive strategy fails
2010-09-18Git 1.7.3Libravatar Junio C Hamano3-14/+8
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-18Merge branch 'js/ls-files-x-doc'Libravatar Junio C Hamano1-5/+6
* js/ls-files-x-doc: ls-files documentation: reword for consistency git-ls-files.txt: clarify -x/--exclude option Conflicts: Documentation/git-ls-files.txt
2010-09-17git-rebase--interactive.sh: replace cut with ${v%% *}Libravatar Chris Johnsen1-1/+1
Some versions of cut do not cope well with lines that do not end in an LF. In this case, we can completely avoid cut by using the ${var%% *} parameter expansion (suggested by Brandon Casey). I found this problem when t3404's "avoid unnecessary reset" failed due to the "rebase -i" not avoiding updating the tested timestamp. On a Mac OS X 10.4.11 system: % printf '%s' 'foo bar' | /usr/bin/cut -d ' ' -f 1 cut: stdin: Illegal byte sequence Signed-off-by: Chris Johnsen <chris_johnsen@pobox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-17t/t7300: workaround ancient touch by rearranging argumentsLibravatar Brandon Casey1-1/+1
The ancient touch on Solaris 7 thinks that a decimal number supplied as the first argument specifies a date_time to give to the files specified by the remaining arguments. In this case, it fails to parse '1' as a proper date_time and exits with a failure status. Workaround this flaw by rearranging the arguments supplied to touch so that a non-digit appears first and touch will not be confused. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-16Merge branch 'bg/fix-t7003'Libravatar Junio C Hamano1-38/+41
* bg/fix-t7003: t7003: Use test_commit instead of custom function
2010-09-15ls-files documentation: reword for consistencyLibravatar Junio C Hamano1-4/+4
Similar to descriptions of other options, state what -x does in imperative mood. Start sentences for -X and --exclude-per-directory options in capital letters. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-15git-ls-files.txt: clarify -x/--exclude optionLibravatar Jay Soffian1-2/+3
Since b5227d8, -x/--exclude does not apply to cached files. This is easy to miss unless you read the discussion in the EXCLUDE PATTERNS section. Clarify that the option applies to untracked files and direct the reader to EXCLUDE PATTERNS. Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-15Git 1.7.3 rc2Libravatar Junio C Hamano2-3/+9
2010-09-15Merge branch 'dr/maint-ls-tree-prefix-recursion-fix'Libravatar Junio C Hamano2-0/+11
* dr/maint-ls-tree-prefix-recursion-fix: ls-tree $di $dir: do not mistakenly recurse into directories
2010-09-15Merge branch 'os/fix-rebase-diff-no-prefix'Libravatar Junio C Hamano1-0/+1
* os/fix-rebase-diff-no-prefix: Add --src/dst-prefix to git-formt-patch in git-rebase.sh
2010-09-15Merge branch 'jl/fix-test'Libravatar Junio C Hamano35-491/+604
* jl/fix-test: t1020: Get rid of 'cd "$HERE"' at the start of each test t2016 (checkout -p): add missing && t1302 (core.repositoryversion): style tweaks t2105 (gitfile): add missing && t1450 (fsck): remove dangling objects tests: subshell indentation stylefix Several tests: cd inside subshell instead of around
2010-09-15Merge branch 'ch/filter-branch-deprecate-remap-to-ancestor'Libravatar Junio C Hamano3-14/+40
* ch/filter-branch-deprecate-remap-to-ancestor: filter-branch: retire --remap-to-ancestor
2010-09-15Merge branch 'ch/maint-cannot-create-bundle-error'Libravatar Junio C Hamano2-2/+11
* ch/maint-cannot-create-bundle-error: bundle: detect if bundle file cannot be created
2010-09-15Merge branch 'ks/recursive-rename-add-identical'Libravatar Junio C Hamano2-0/+41
* ks/recursive-rename-add-identical: RE: [PATCH] Avoid rename/add conflict when contents are identical
2010-09-15Merge git://repo.or.cz/git-guiLibravatar Junio C Hamano6-411/+454
* 'master' of git://repo.or.cz/git-gui: git-gui 0.13 git-gui: avoid mis-encoding the copyright message on Windows. git-gui: Update Swedish translation (521t). git-gui: ensure correct application termination in git-gui--askpass git-gui: handle textconv filter on Windows and in development git-gui: use shell to launch textconv filter in "blame" git-gui: display error launching blame as a message box. git-gui: Make usage statement visible on Windows.
2010-09-14git-gui 0.13Libravatar Pat Thoyts1-1/+1
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
2010-09-13git-gui: avoid mis-encoding the copyright message on Windows.Libravatar Pat Thoyts1-2/+2
On Windows the tcl script file will use the system encoding and attempting to convert the copyright mis-encodes the string. Instead, keep the message as ASCII and substitute in the correct unicode character when running. Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
2010-09-13git-gui: Update Swedish translation (521t).Libravatar Peter Krefting1-399/+403
Signed-off-by: Peter Krefting <peter@softwolves.pp.se> Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>