summaryrefslogtreecommitdiff
AgeCommit message (Collapse)AuthorFilesLines
2007-08-15git-svn: fix log with single revision against a non-HEAD branchLibravatar Eric Wong2-9/+63
Running git-svn log <ref> -r<rev> against a <ref> other than the current HEAD did not work if the <rev> was exclusive to the other branch. Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-15GIT 1.5.3-rc5Libravatar Junio C Hamano1-19/+62
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14attr.c: read .gitattributes from index as well.Libravatar Junio C Hamano3-11/+150
This makes .gitattributes files to be read from the index when they are not checked out to the work tree. This is in line with the way we always allowed low-level tools to operate in sparsely checked out work tree in a reasonable way. It swaps the order of new file creation and converting the blob to work tree representation; otherwise when we are in the middle of checking out .gitattributes we would notice an empty but unwritten .gitattributes file in the work tree and will ignore the copy in the index. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14attr.c: refactoringLibravatar Junio C Hamano1-26/+41
This splits out a common routine that parses a single line of attribute file and adds it to the attr_stack. It should not change any behaviour, other than attrs array in the attr_stack structure is now grown with alloc_nr() macro, instead of one by one, which relied on xrealloc() to give enough slack to be efficient enough. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14Add read_cache to builtin-check-attrLibravatar Brian Downing1-0/+5
We can now read .gitattributes files out of the index, but the index must be loaded for this to work. Signed-off-by: Brian Downing <bdowning@lavos.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14diff: squelch empty diffs even moreLibravatar René Scharfe3-3/+9
When we compare two non-tracked files, or explicitly specify --no-index, the suggestion to run git-status is not helpful. The patch adds a new diff_options bitfield member, no_index, that is used instead of the special value of -2 of the rev_info field max_count to indicate that the index is not to be used. This makes it possible to pass that flag down to diffcore_skip_stat_unmatch(), which only has one diff_options parameter. This could even become a cleanup if we removed all assignments of max_count to a value of -2 (viz. replacement of a magic value with a self-documenting field name) but I didn't dare to do that so late in the rc game.. The no_index bit, if set, then tells diffcore_skip_stat_unmatch() to not account for any skipped stat-mismatches, which avoids the suggestion to run git-status. Signed-off-by: Rene Scharfe <rene.scharfe@lsfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14Use xmkstemp() instead of mkstemp()Libravatar Luiz Fernando N. Capitulino6-17/+7
xmkstemp() performs error checking and prints a standard error message when an error occur. Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14Introduces xmkstemp()Libravatar Luiz Fernando N. Capitulino1-0/+10
This is a wrapper for mkstemp() that performs error checking and calls die() when an error occur. Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14Avoid ambiguous error message if pack.idx header is wrongLibravatar Luiz Fernando N. Capitulino1-2/+2
Print the index version when an error occurs so the user knows what type of header (and size) we thought the index should have had. Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14merge-recursive: do not rudely die on binary mergeLibravatar Junio C Hamano2-23/+95
When you try to merge a path that involves binary file-level merge, merge-recursive died rudely without cleaning up its own mess. A files added by the merge were left in the working tree, but the index was not written out (because it just punted and died), so it was cumbersome for the user to retry it by first running "git reset --hard". This changes merge-recursive to still warn but do the "binary" merge for such a path; leave the "our" version in the working tree, but still keep the path unmerged so that the user can sort it out. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14Add --log-size to git log to print message sizeLibravatar Marco Costalba4-0/+15
With this option git-log prints log message size just before the corresponding message. Porcelain tools could use this to speedup parsing of git-log output. Note that size refers to log message only. If also patch content is shown its size is not included. In case it is not possible to know the size upfront size value is set to zero. Signed-off-by: Marco Costalba <mcostalba@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-14git-diff: squelch "empty" diffsLibravatar Junio C Hamano3-0/+61
After starting to edit a working tree file but later when your edit ends up identical to the original (this can also happen when you ran a wholesale regexp replace with something like "perl -i" that does not actually modify many of the paths), "git diff" between the index and the working tree outputs many "empty" diffs that show "diff --git" headers and nothing else, because these paths are stat-dirty. While it was a way to warn the user that the earlier action of the user made the index ineffective as an optimization mechanism, it was felt too loud for the purpose of warning even to experienced users, and also resulted in confusing people new to git. This replaces the "empty" diffs with a single warning message at the end. Having many such paths hurts performance, and you can run "git-update-index --refresh" to update the lstat(2) information recorded in the index in such a case. "git-status" does so as a side effect, and that is more familiar to the end-user, so we recommend it to them. The change affects only "git diff" that outputs patch text, because that is where the annoyance of too many "empty" diff is most strongly felt, and because the warning message can be safely ignored by downstream tools without getting mistaken as part of the patch. For the low-level "git diff-files" and "git diff-index", the traditional behaviour is retained. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13Improved hint on how to set identityLibravatar Steffen Prohaska1-4/+4
The first thing we teach in the tutorial is to set the default identity in $HOME/.gitconfig using "git config --global". The suggestion in the error message should match the order, while hinting that per repository identity can later be configured differently. Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13Add a test for git-commit being confused by relative GIT_DIRLibravatar David Kastrup1-0/+55
Signed-off-by: David Kastrup <dak@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13git-sh-setup.sh: make GIT_DIR absoluteLibravatar David Kastrup3-15/+12
Quite a few of the scripts are rather careless about using GIT_DIR while changing directories. Some try their hands (with different likelihood of success) in making GIT_DIR absolute. This patch lets git-sh-setup.sh cater for absolute directories (in a way that should work reliably also with non-Unix path names) and removes the respective kludges in git-filter-branch.sh and git-instaweb.sh. Signed-off-by: David Kastrup <dak@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13Allow git-svnimport to take "" as the trunk directory.Libravatar Alberto Bertogli1-1/+1
Some repositories started with the trunk in "/" and then moved it to the standard "trunk/" location. On these repositories, the correct thing would be to call git-svnimport -T "", but because of the way the options are handled, it uses the default "trunk" instead of the given empty string. This patch fixes that behaviour. Reported by Leandro Lucarella <llucax@gmail.com>. Signed-off-by: Alberto Bertogli <albertito@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13Fix t5701-clone-local for white space from wcLibravatar Brian Gernhardt1-2/+2
Signed-off-by: Brian Gernhardt <benji@silverinsanity.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13git-p4: Fix the sorting of changelists when cloning a Perforce repository.Libravatar Reece H. Dunn1-1/+1
When performing a git-p4 clone operation on a Perforce repository, where the changelists change in order of magnitude (e.g. 100 to 1000), the set of changes to import from is not sorted properly. This is because the data in the list is strings not integers. The other place where this is done already converts the value to an integer, so it is not affected. Acked-by: Simon Hausmann <simon@lst.de>
2007-08-13diff: don't run pager if user asked for a diff style exit codeLibravatar René Scharfe2-1/+7
As Wincent Colaiuta found out, it's a bit unexpected for git diff to start a pager even when the --quiet option is specified. The problem is that the pager hides the return code -- which is the only output we're interested in in this case. Push pager setup down into builtin-diff.c and don't start the pager if --exit-code or --quiet (which implies --exit-code) was specified. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13builtin-bundle create - use lock_fileLibravatar Junio C Hamano1-8/+10
"git bundle create" left an invalid, partially written bundle if an error occured during creation. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13t3902 - skip test if file system doesn't support HT in namesLibravatar Mark Levedahl1-0/+6
Windows / cygwin don't support HT, LF, or TAB in file name so this test is meaningless there. Signed-off-by: Mark Levedahl <mdl123@verizon.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13git-add: Add support for --refresh option.Libravatar Alexandre Julliard5-5/+51
This allows to refresh only a subset of the project files, based on the specified pathspecs. Signed-off-by: Alexandre Julliard <julliard@winehq.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13t3404: fix "fake-editor"Libravatar Junio C Hamano1-17/+19
Here-text to create fake-editor did not use <<\EOF but <<EOF, but there was no point doing so, as it quoted all the variables anyway. Simplify it. Also futureproof the special mode to edit COMMIT_EDITMSG file; it is interested in editing the COMMIT_EDITMSG file in any GIT_DIR; GIT_DIR may be given as an absolute path. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13git.el: Always set the current directory in the git-diff buffer.Libravatar Alexandre Julliard1-4/+6
This allows jumping to the correct file with the diff-mode commands. Signed-off-by: Alexandre Julliard <julliard@winehq.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13git.el: Add support for interactive diffs.Libravatar Alexandre Julliard1-1/+7
Signed-off-by: Alexandre Julliard <julliard@winehq.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-13Merge branch 'master' of git://git.kernel.org/pub/scm/gitk/gitkLibravatar Junio C Hamano1-31/+97
* 'master' of git://git.kernel.org/pub/scm/gitk/gitk: gitk: Fix bug causing Tcl error when updating graph gitk: Fix bug introduced in commit 67a4f1a7 [PATCH] gitk: Show an error and exit if no .git could be found [PATCH] gitk: Continue and show error message in new repos [PATCH] gitk: Handle MouseWheel events on Windows [PATCH] gitk: Enable selected patch text on Windows gitk: Fix bug causing the "can't unset idinlist(...)" error gitk: Add a context menu for file list entries
2007-08-13gitk: Fix bug causing Tcl error when updating graphLibravatar Paul Mackerras1-13/+11
If "Show nearby tags" is turned off, selecting "Update" from the File menu will cause a Tcl error. This fixes it. The problem was that we were calling regetallcommits unconditionally, but it assumed that getallcommits had been called previously. This also restructures {re,}getallcommits to be a bit simpler. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-13gitk: Fix bug introduced in commit 67a4f1a7Libravatar Paul Mackerras1-10/+14
In fixing the "can't unset idinlist" error, I moved the setting of idinlist into the loop that splits the parents into "new" parents (i.e. those of which this is the first child) and "old" parents. Unfortunately this is incorrect in the case where we hit the break statement a few lines further down, since when we come back in, we'll see idinlist($p) set for some parents that aren't in the list. This fixes it by moving the loop that sets up newolds and oldolds further down. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12[PATCH] gitk: Show an error and exit if no .git could be foundLibravatar Alex Riesen1-1/+4
This is to help people starting gitk from graphical file managers where the stderr output is hidden. Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12[PATCH] gitk: Continue and show error message in new reposLibravatar Alex Riesen1-1/+1
If there is no commit made yet, gitk just dumps a Tcl error on stderr, which sometimes is hard to see. Noticed when gitk was run from Xfce file manager (thunar's custom action). Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12[PATCH] gitk: Handle MouseWheel events on WindowsLibravatar Mark Levedahl1-2/+25
Windows, unlike X-Windows, sends mousewheel events by default to the window that has keyboard focus and uses the MouseWheel event to do so. The window to be scrolled must be able to take focus, but gitk's panels are disabled so cannot take focus. For all these reasons, a different design is needed to use the mousewheel on Windows. The approach here is to bind the mousewheel events to the top level window and redirect them based upon the current mouse position. Signed-off-by: Mark Levedahl <mdl123@verizon.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12[PATCH] gitk: Enable selected patch text on WindowsLibravatar Mark Levedahl1-2/+5
On windows, mouse input follows the keyboard focus, so to allow selecting text from the patch canvas we must not shift focus back to the top level. This change has no negative impact on X, so we don't explicitly test for Win32 on this change. This provides similar selection capability as already available using X-Windows. Signed-off-by: Mark Levedahl <mdl123@verizon.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-12gitk: Fix bug causing the "can't unset idinlist(...)" errorLibravatar Paul Mackerras1-3/+2
Under some circumstances, having duplicate parents in a commit could trigger a "can't unset idinlist" Tcl error. This fixes the cause (the logic in layoutrows could end up putting the same commit into rowidlist twice) and also puts a catch around the unset to ignore the error. Thanks to Jeff King for coming up with a test script to generate a repo that shows the problem. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10Documentation/Makefile: remove cmd-list.made before redirecting to it.Libravatar David Kastrup1-0/+1
If cmd-list.made has been created by a previous run as root, output redirection to it will fail. So remove it before regeneration. Signed-off-by: David Kastrup <dak@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Merge branch 'cr/tag'Libravatar Junio C Hamano16-17/+720
* cr/tag: Teach "git stripspace" the --strip-comments option Make verify-tag a builtin. builtin-tag.c: Fix two memory leaks and minor notation changes. launch_editor(): Heed GIT_EDITOR and core.editor settings Make git tag a builtin.
2007-08-10INSTALL: explain info installation and dependencies.Libravatar David Kastrup1-5/+9
Signed-off-by: David Kastrup <dak@gnu.org>
2007-08-10Add support for an info version of the user manualLibravatar David Kastrup3-1/+44
These patches use docbook2x in order to create an info version of the git user manual. No existing Makefile targets (including "all") are touched, so you need to explicitly say make info sudo make install-info to get git.info created and installed. If the info target directory does not already contain a "dir" file, no directory entry is created. This facilitates $(DESTDIR)-based installations. The same could be achieved with sudo make INSTALL_INFO=: install-info explicitly. perl is used for patching up sub-par file and directory information in the Texinfo file. It would be cleaner to place the respective info straight into user-manual.txt or the conversion configurations, but I find myself unable to find out how to do this with Asciidoc/Texinfo. Signed-off-by: David Kastrup <dak@gnu.org>
2007-08-10Merge branch 'jc/clone'Libravatar Junio C Hamano7-45/+86
* jc/clone: git-clone: aggressively optimize local clone behaviour. connect: accept file:// URL scheme
2007-08-10Optimize the three-way merge of git-read-treeLibravatar Linus Torvalds1-2/+5
As mentioned, the three-way case *should* be as trivial as the following. It passes all the tests, and I verified that a conflicting merge in the 100,000 file horror-case merged correctly (with the conflict markers) in 0.687 seconds with this, so it works, but I'm lazy and somebody else should double-check it [jc: followed all three-way merge codepaths and verified it removes when it should]. Without this patch, the merge took 8.355 seconds, so this patch really does make a huge difference for merge performance with lots and lots of files, and we're not talking percentages, we're talking orders-of-magnitude differences! Now "unpack_trees()" is just fast enough that we don't need to avoid it (although it's probably still a good idea to eventually convert it to use the traverse_trees() infrastructure some day - just to avoid having extraneous tree traversal functions). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Fix filehandle leak in "git branch -D"Libravatar Alex Riesen1-0/+1
On Windows (it can't touch open files in any way) the following fails: git branch -D branch1 branch2 if the both branches are in packed-refs. Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10builtin-bundle - use buffered reads for bundle headerLibravatar Mark Levedahl1-24/+13
This eliminates all use of byte-at-a-time reading of data in this function: as Junio noted, a bundle file is seekable so we can reset the file position to the first part of the pack-file using lseek after reading the header. Signed-off-by: Mark Levedahl <mdl123@verizon.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10builtin-bundle.c - use stream buffered input for rev-listLibravatar Mark Levedahl1-2/+5
git-bundle create on cygwin was nearly unusable due to 1 character at a time (unbuffered) reading from an exec'ed process. Fix by using fdopen to get a buffered stream. Results for "time git bundle create test.bdl v1.0.3..v1.5.2" are: before this patch: cygwin linux real 1m38.828s 0m3.578s user 0m12.122s 0m2.896s sys 1m28.215s 0m0.692s after this patch: real 0m3.688s 0m2.835s user 0m3.075s 0m2.731s sys 0m1.075s 0m0.149s Signed-off-by: Mark Levedahl <mdl123@verizon.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10allow git-bundle to create bottomless bundleLibravatar Junio C Hamano1-0/+33
Mark Levedahl <mlevedahl@gmail.com> writes: > Junio C Hamano wrote: >> While "git bundle" was a useful way to sneakernet incremental >> changes, we did not allow: >> > Thanks - I've been thinking for months I could fix this bug, never > figured it out and didn't want to nag Dscho one more time. I confirm > that this allows creation of bundles with arbitrary refs, not just > those under refs/heads. Yahoo! Actually, there is another bug nearby. If you do: git bundle create v2.6-20-v2.6.22.bndl v2.6.20..v2.6.22 the bundle records that it requires v2.6.20^0 commit (correct) and gives you tag v2.6.22 (incorrect); the bug is that the object it lists in fact is the commit v2.6.22^0, not the tag. This is because the revision range operation .. is always about set of commits, but the code near where my patch touches does not validate that the sha1 value obtained from dwim_ref() against the commit object name e->item->sha1 before placing the head information in the commit. The attached patch attempts to fix this problem. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10allow git-bundle to create bottomless bundleLibravatar Junio C Hamano2-1/+17
While "git bundle" was a useful way to sneakernet incremental changes, we did not allow: $ git bundle create v2.6.20.bndl v2.6.20 to create a bundle that contains the whole history to a well-known good revision. Such a bundle can be mirrored everywhere, and people can prime their repository with it to reduce the load on the repository that serves near the tip of the development. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Optimize the two-way merge of git-read-tree tooLibravatar Linus Torvalds1-3/+4
This trivially optimizes the two-way merge case of git-read-tree too, which affects switching branches. When you have tons and tons of files in your repository, but there are only small differences in the branches (maybe just a couple of files changed), the biggest cost of the branch switching was actually just the index calculations. This fixes it (timings for switching between the "testing" and "master" branches in the 100,000 file testing-repo-from-hell, where the branches only differ in one small file). Before: [torvalds@woody bummer]$ time git checkout master real 0m9.919s user 0m8.461s sys 0m0.264s After: [torvalds@woody bummer]$ time git checkout testing real 0m0.576s user 0m0.348s sys 0m0.228s so it's easily an order of magnitude different. This concludes the series. I think we could/should do the three-way merge too (to speed up merges), but I'm lazy. Somebody else can do it. The rule is very simple: you need to remove the old entry if: - you want to remove the file entirely - you replace it with a "merge conflict" entry (ie a non-stage-0 entry) and you can avoid removing it if you either - keep the old one - or resolve it to a new one. and these rules should all be valid for the three-way case too. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Optimize the common cases of git-read-treeLibravatar Linus Torvalds1-3/+3
This optimizes bind_merge() and oneway_merge() to not unnecessarily remove and re-add the old index entries when they can just get replaced by updated ones. This makes these operations much faster for large trees (where "large" is in the 50,000+ file range), because we don't unnecessarily move index entries around in the index array all the time. Using the "bummer" tree (a test-tree with 100,000 files) we get: Before: [torvalds@woody bummer]$ time git commit -m"Change one file" 50/500 real 0m9.470s user 0m8.729s sys 0m0.476s After: [torvalds@woody bummer]$ time git commit -m"Change one file" 50/500 real 0m1.173s user 0m0.720s sys 0m0.452s so for large trees this is easily very noticeable indeed. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Move old index entry removal from "unpack_trees()" into the individual functionsLibravatar Linus Torvalds2-11/+29
This makes no changes to current code, but it allows the individual merge functions to decide what to do about the old entry. They might decide to update it in place, rather than force them to always delete and re-add it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Merge branch 'lt/readtree'Libravatar Junio C Hamano4-30/+39
* lt/readtree: Start moving unpack-trees to "struct tree_desc"
2007-08-10Fix "git commit directory/" performance anomalyLibravatar Linus Torvalds1-2/+8
This trivial patch avoids re-hashing files that are already clean in the index. This mirrors what commit 0781b8a9b2fe760fc4ed519a3a26e4b9bd6ccffe did for "git add .", only for "git commit ." instead. This improves the cold-cache case immensely, since we don't need to bring in all the file contents, just the index and any files dirty in the index. Before: [torvalds@woody linux]$ time git commit . real 1m49.537s user 0m3.892s sys 0m2.432s After: [torvalds@woody linux]$ time git commit . real 0m14.273s user 0m1.312s sys 0m0.516s (both after doing a "echo 3 > /proc/sys/vm/drop_caches" to get cold-cache behaviour - even with the index optimization git still has to "lstat()" all the files, so with a truly cold cache, bringing all the inodes in will take some time). [jc: trivial "return 0;" fixed] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Optimize "diff --cached" performance.Libravatar Junio C Hamano3-5/+85
The read_tree() function is called only from the call chain to run "git diff --cached" (this includes the internal call made by git-runstatus to run_diff_index()). The function vacates stage without any funky "merge" magic. The caller then goes and compares stage #1 entries from the tree with stage #0 entries from the original index. When adding the cache entries this way, it used the general purpose add_cache_entry(). This function looks for an existing entry to replace or if there is none to find where to insert the new entry, resolves D/F conflict and all the other things. For the purpose of reading entries into an empty stage, none of that processing is needed. We can instead append everything and then sort the result at the end. This commit changes read_tree() to first make sure that there is no existing cache entries at specified stage, and if that is the case, it runs add_cache_entry() with ADD_CACHE_JUST_APPEND flag (new), and then sort the resulting cache using qsort(). This new flag tells add_cache_entry() to omit all the checks such as "Does this path already exist? Does adding this path remove other existing entries because it turns a directory to a file?" and instead append the given cache entry straight at the end of the active cache. The caller of course is expected to sort the resulting cache at the end before using the result. Signed-off-by: Junio C Hamano <gitster@pobox.com>