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2008-02-27Merge branch 'db/checkout'Libravatar Junio C Hamano1-1/+2
* db/checkout: (21 commits) checkout: error out when index is unmerged even with -m checkout: show progress when checkout takes long time while switching branches Add merge-subtree back checkout: updates to tracking report builtin-checkout.c: Remove unused prefix arguments in switch_branches path checkout: work from a subdirectory checkout: tone down the "forked status" diagnostic messages Clean up reporting differences on branch switch builtin-checkout.c: fix possible usage segfault checkout: notice when the switched branch is behind or forked Build in checkout Move code to clean up after a branch change to branch.c Library function to check for unmerged index entries Use diff -u instead of diff in t7201 Move create_branch into a library file Build-in merge-recursive Add "skip_unmerged" option to unpack_trees. Discard "deleted" cache entries after using them to update the working tree Send unpack-trees debugging output to stderr Add flag to make unpack_trees() not print errors. ... Conflicts: Makefile
2008-02-22Name hash fixups: export (and rename) remove_hash_entryLibravatar Linus Torvalds1-0/+1
This makes the name hash removal function (which really just sets the bit that disables lookups of it) available to external routines, and makes read_cache_unmerged() use it when it drops an unmerged entry from the index. It's renamed to remove_index_entry(), and we drop the (unused) 'istate' argument. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-21git-reset --hard and git-read-tree --reset: fix read_cache_unmerged()Libravatar Junio C Hamano1-1/+1
When invalidating unmerged entries in the index, we used to set their ce_mode to 0 to note the fact that they do not matter anymore which also made sure that later unpack_trees() call would not reuse them. Instead just remove them from the index. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-09Allow callers of unpack_trees() to handle failureLibravatar Daniel Barkalow1-1/+2
Return an error from unpack_trees() instead of calling die(), and exit with an error in read-tree, builtin-commit, and diff-lib. merge-recursive already expected an error return from unpack_trees, so it doesn't need to be changed. The merge function can return negative to abort. This will be used in builtin-checkout -m. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
2008-01-21Make on-disk index representation separate from in-core oneLibravatar Linus Torvalds1-2/+1
This converts the index explicitly on read and write to its on-disk format, allowing the in-core format to contain more flags, and be simpler. In particular, the in-core format is now host-endian (as opposed to the on-disk one that is network endian in order to be able to be shared across machines) and as a result we can dispense with all the htonl/ntohl on accesses to the cache_entry fields. This will make it easier to make use of various temporary flags that do not exist in the on-disk format. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-16Improve use of lockfile APILibravatar Brandon Casey1-1/+1
Remove remaining double close(2)'s. i.e. close() before commit_locked_index() or commit_lock_file(). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-16Clean-up read-tree error condition.Libravatar Junio C Hamano1-6/+3
This is a follow-up to f34f2b0b; list_tree() function is where it first notices that the command line fed too many trees for us to handle, so move the error exit message to there, and raise the MAX_TREES to 8 (not that it matters very much in practice). Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-15Fix read-tree merging more than 3 trees using 3-way mergeLibravatar Junio C Hamano1-2/+6
For multi-base merges, we allowed read-tree -m to take more than three trees (the last two are our and their branches, and all the earlier ones, typically one but potentially more, are used as the merge base). Unfortunately, the conversion done by commit 933bf40 broke this. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Start moving unpack-trees to "struct tree_desc"Libravatar Linus Torvalds1-8/+18
This doesn't actually change any real code, but it changes the interface to unpack_trees() to take an array of "struct tree_desc" entries, the same way the tree-walk.c functions do. The reason for this is that we would be much better off if we can do the tree-unpacking using the generic "traverse_trees()" functionality instead of having to the special "unpack" infrastructure. This really is a pretty minimal diff, just to change the calling convention. It passes all the tests, and looks sane. There were only two users of "unpack_trees()": builtin-read-tree and merge-recursive, and I tried to keep the changes minimal. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-02read-tree: remove unnecessary call to setup_git_directory()Libravatar Johannes Schindelin1-1/+0
read-tree is already marked with RUN_SETUP in git.c, so there is no need to call setup_git_directory() a second time. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-16Document git read-tree --trivialLibravatar Jakub Narebski1-1/+1
Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-04-07Merge branch 'jc/read-tree-df' (early part)Libravatar Junio C Hamano1-0/+1
* 'jc/read-tree-df' (early part): Fix switching to a branch with D/F when current branch has file D. Fix twoway_merge that passed d/f conflict marker to merged_entry(). Fix read-tree --prefix=dir/. unpack-trees: get rid of *indpos parameter. unpack_trees.c: pass unpack_trees_options structure to keep_entry() as well. add_cache_entry(): removal of file foo does not conflict with foo/bar
2007-04-04Fix read-tree --prefix=dir/.Libravatar Junio C Hamano1-0/+1
The existing code is not wrong per-se, but it started scanning the index from a location that does not match the tree being read, and wasted cycles. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-03git-read-tree --index-output=<file>Libravatar Junio C Hamano1-1/+6
This corrects the interface mistake of the previous one, and gives a command line parameter to the only plumbing command that currently needs it: "git-read-tree". We can add the calls to set_alternate_index_output() to other plumbing commands that update the index if/when needed. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-03_GIT_INDEX_OUTPUT: allow plumbing to output to an alternative index file.Libravatar Junio C Hamano1-2/+2
When defined, this allows plumbing commands that update the index (add, apply, checkout-index, merge-recursive, mv, read-tree, rm, update-index, and write-tree) to write their resulting index to an alternative index file while holding a lock to the original index file. With this, git-commit that jumps the index does not have to make an extra copy of the index file, and more importantly, it can do the update while holding the lock on the index. However, I think the interface to let an environment variable specify the output is a mistake, as shown in the documentation. If a curious user has the environment variable set to something other than the file GIT_INDEX_FILE points at, almost everything will break. This should instead be a command line parameter to tell these plumbing commands to write the result in the named file, to prevent stupid mistakes. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-27read-tree: use xcallocLibravatar James Bowes1-1/+1
Signed-off-by: James Bowes <jbowes@dangerouslyinc.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-21Initialize tree descriptors with a helper function rather than by hand.Libravatar Linus Torvalds1-2/+1
This removes slightly more lines than it adds, but the real reason for doing this is that future optimizations will require more setup of the tree descriptor, and so we want to do it in one place. Also renamed the "desc.buf" field to "desc.buffer" just to trigger compiler errors for old-style manual initializations, making sure I didn't miss anything. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-20Mechanical conversion to use prefixcmp()Libravatar Junio C Hamano1-2/+2
This mechanically converts strncmp() to use prefixcmp(), but only when the parameters match specific patterns, so that they can be verified easily. Leftover from this will be fixed in a separate step, including idiotic conversions like if (!strncmp("foo", arg, 3)) => if (!(-prefixcmp(arg, "foo"))) This was done by using this script in px.perl #!/usr/bin/perl -i.bak -p if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) { s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|; } if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) { s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|; } and running: $ git grep -l strncmp -- '*.c' | xargs perl px.perl Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-05read-tree: document --exclude-per-directoryLibravatar Junio C Hamano1-1/+1
This documents the new option to read-tree that is used for the improved "branch switching" code. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-05read-tree: further loosen "working file will be lost" check.Libravatar Junio C Hamano1-0/+20
This follows up commit ed93b449 where we removed overcautious "working file will be lost" check. A new option "--exclude-per-directory=.gitignore" can be used to tell the "git-read-tree" command that the user does not mind losing contents in untracked files in the working tree, if they need to be overwritten by a merge (either a two-way "switch branches" merge, or a three-way merge). Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-23Convert memcpy(a,b,20) to hashcpy(a,b).Libravatar Shawn Pearce1-1/+1
This abstracts away the size of the hash values when copying them from memory location to memory location, much as the introduction of hashcmp abstracted away hash value comparsion. A few call sites were using char* rather than unsigned char* so I added the cast rather than open hashcpy to be void*. This is a reasonable tradeoff as most call sites already use unsigned char* and the existing hashcmp is also declared to be unsigned char*. [jc: Splitted the patch to "master" part, to be followed by a patch for merge-recursive.c which is not in "master" yet. Fixed the cast in the latter hunk to combine-diff.c which was wrong in the original. Also converted ones left-over in combine-diff.c, diff-lib.c and upload-pack.c ] Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-15remove unnecessary initializationsLibravatar David Rientjes1-1/+1
[jc: I needed to hand merge the changes to the updated codebase, so the result needs to be checked.] Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-12Merge branch 'js/read-tree'Libravatar Junio C Hamano1-823/+38
2006-08-12Better error message when we are unable to lock the index fileLibravatar Junio C Hamano1-3/+1
Most of the callers except the one in refs.c use the function to update the index file. Among the index writers, everybody except write-tree dies if they cannot open it for writing. This gives the function an extra argument, to tell it to die when it cannot create a new file as the lockfile. The only caller that does not have to die is write-tree, because updating the index for the cache-tree part is optional and not being able to do so does not affect the correctness. I think we do not have to be so careful and make the failure into die() the same way as other callers, but that would be a different patch. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-03read-tree: shadowed variable fix.Libravatar Junio C Hamano1-1/+1
Recent changes to built-ins broke committing from subdirectory, because the unused parameter "prefix" shadowed a global variable. Spotted by Jeff King. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-30read-tree: move merge functions to the libraryLibravatar Johannes Schindelin1-397/+1
This will allow merge-recursive to use the read-tree functionality without exec()ing git-read-tree. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-30read-trees: refactor the unpack_trees() partLibravatar Johannes Schindelin1-483/+94
Basically, the options are passed by a struct unpack_trees_options now. That's all. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-29Call setup_git_directory() much earlierLibravatar Linus Torvalds1-2/+1
This changes the calling convention of built-in commands and passes the "prefix" (i.e. pathname of $PWD relative to the project root level) down to them. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-16checkout -f failed to check out a file if an existing directory interfered.Libravatar Junio C Hamano1-2/+2
When path foo/bar existed in the working tree, checkout -f to switch to a branch that has a file foo silently did a wrong thing. It failed to remove the directory foo, did not check out the file foo, and the worst of all it did not report any errors. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-10Avoid C99 initializersLibravatar Shawn Pearce1-10/+8
In a handful places, we use C99 structure and array initializers, which some compilers do not support. This can be handy when you are trying to compile GIT on a Solaris system that has an older C compiler, for example. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-08Close the index file between writing and committingLibravatar Johannes Schindelin1-1/+1
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-18Don't use empty structure initializers.Libravatar Florian Forster1-2/+1
Empty initializers for structures are not allowed in ANSI C99. This patch removes such an initializer from `builtin-read-tree.c'. Since the struct was static (and is therefore implicitely initialized to zero anyway) it wasn't actually needed. Signed-off-by: Florian Forster <octo@verplant.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-17Merge branch 'jc/rw-prefix'Libravatar Junio C Hamano1-6/+64
* jc/rw-prefix: read-tree: reorganize bind_merge code. write-tree: --prefix=<path> read-tree: --prefix=<path>/ option.
2006-06-06Make index file locking code reusable to others.Libravatar Junio C Hamano1-4/+4
The framework to create lockfiles that are removed at exit is first used to reliably write the index file, but it is applicable to other things, so stop calling it "cache_file". This also rewords a few remaining error message that called the index file "cache file". Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-05read-tree: fix eye-candy.Libravatar Linus Torvalds1-0/+1
Anton Blanchard spotted that watching checkout stage of a clone on a slow terminal takes ages because it forgot to clear the "once a second happened" flag, so instead of updates the percentage output for every file it checks out after the first second has passed. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-03Merge branch 'lt/tree-2'Libravatar Junio C Hamano1-12/+56
* lt/tree-2: fetch.c: do not call process_tree() from process_tree(). tree_entry(): new tree-walking helper function adjust to the rebased series by Linus. Remove "tree->entries" tree-entry list from tree parser Switch "read_tree_recursive()" over to tree-walk functionality Make "tree_entry" have a SHA1 instead of a union of object pointers Add raw tree buffer info to "struct tree" Remove last vestiges of generic tree_entry_list Convert fetch.c: process_tree() to raw tree walker Convert "mark_tree_uninteresting()" to raw tree walker Remove unused "zeropad" entry from tree_list_entry fsck-objects: avoid unnecessary tree_entry_list usage Remove "tree->entries" tree-entry list from tree parser builtin-read-tree.c: avoid tree_entry_list in prime_cache_tree_rec() Switch "read_tree_recursive()" over to tree-walk functionality Make "tree_entry" have a SHA1 instead of a union of object pointers Make "struct tree" contain the pointer to the tree buffer
2006-06-03read-tree --reset: update working tree file for conflicted paths.Libravatar Junio C Hamano1-10/+14
The earlier "git reset --hard" simplification stopped removing leftover working tree files from a failed automerge, when switching back to the HEAD version that does not have the paths. This patch, instead of removing the unmerged paths from the index, drops them down to stage#0 but marks them with mode=0 (the same "to be deleted" marker we internally use for paths deleted by the merge). one_way_merge() function and the functions it calls already know what to do with them -- if the tree we are reading has the path the working tree file is overwritten, and if it doesn't the working tree file is removed. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-30tree_entry(): new tree-walking helper functionLibravatar Linus Torvalds1-23/+13
This adds a "tree_entry()" function that combines the common operation of doing a "tree_entry_extract()" + "update_tree_entry()". It also has a simplified calling convention, designed for simple loops that traverse over a whole tree: the arguments are pointers to the tree descriptor and a name_entry structure to fill in, and it returns a boolean "true" if there was an entry left to be gotten in the tree. This allows tree traversal with struct tree_desc desc; struct name_entry entry; desc.buf = tree->buffer; desc.size = tree->size; while (tree_entry(&desc, &entry) { ... use "entry.{path, sha1, mode, pathlen}" ... } which is not only shorter than writing it out in full, it's hopefully less error prone too. [ It's actually a tad faster too - we don't need to recalculate the entry pathlength in both extract and update, but need to do it only once. Also, some callers can avoid doing a "strlen()" on the result, since it's returned as part of the name_entry structure. However, by now we're talking just 1% speedup on "git-rev-list --objects --all", and we're definitely at the point where tree walking is no longer the issue any more. ] NOTE! Not everybody wants to use this new helper function, since some of the tree walkers very much on purpose do the descriptor update separately from the entry extraction. So the "extract + update" sequence still remains as the core sequence, this is just a simplified interface. We should probably add a silly two-line inline helper function for initializing the descriptor from the "struct tree" too, just to cut down on the noise from that common "desc" initializer. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-29Remove last vestiges of generic tree_entry_listLibravatar Linus Torvalds1-1/+44
The old tree_entry_list is dead, long live the unified single tree parser. Yes, we now still have a compatibility function to create a bogus tree_entry_list in builtin-read-tree.c, but that is now entirely local to that very messy piece of code. I'd love to clean read-tree.c up too, but I'm too scared right now, so the best I can do is to just contain the damage, and try to make sure that no new users of the tree_entry_list sprout up by not having it as an exported interface any more. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-29Remove "tree->entries" tree-entry list from tree parserLibravatar Linus Torvalds1-2/+2
Instead, just use the tree buffer directly, and use the tree-walk infrastructure to walk the buffers instead of the tree-entry list. The tree-entry list is inefficient, and generates tons of small allocations for no good reason. The tree-walk infrastructure is generally no harder to use than following a linked list, and allows us to do most tree parsing in-place. Some programs still use the old tree-entry lists, and are a bit painful to convert without major surgery. For them we have a helper function that creates a temporary tree-entry list on demand. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-29builtin-read-tree.c: avoid tree_entry_list in prime_cache_tree_rec()Libravatar Linus Torvalds1-5/+15
Use the raw tree walker instead. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-29Make "tree_entry" have a SHA1 instead of a union of object pointersLibravatar Linus Torvalds1-4/+5
This is preparatory work for further cleanups, where we try to make tree_entry look more like the more efficient tree-walk descriptor. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-29Make "struct tree" contain the pointer to the tree bufferLibravatar Linus Torvalds1-2/+2
This allows us to avoid allocating information for names etc, because we can just use the information from the tree buffer directly. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-28Merge branch 'jc/cache-tree'Libravatar Junio C Hamano1-3/+59
* jc/cache-tree: (26 commits) builtin-rm: squelch compiler warnings. git-write-tree writes garbage on sparc64 Fix crash when reading the empty tree fsck-objects: do not segfault on missing tree in cache-tree cache-tree: a bit more debugging support. read-tree: invalidate cache-tree entry when a new index entry is added. Fix test-dump-cache-tree in one-tree disappeared case. fsck-objects: mark objects reachable from cache-tree cache-tree: replace a sscanf() by two strtol() calls cache-tree.c: typefix test-dump-cache-tree: validate the cached data as well. cache_tree_update: give an option to update cache-tree only. read-tree: teach 1-way merege and plain read to prime cache-tree. read-tree: teach 1 and 2 way merges about cache-tree. update-index: when --unresolve, smudge the relevant cache-tree entries. test-dump-cache-tree: report number of subtrees. cache-tree: sort the subtree entries. Teach fsck-objects about cache-tree. index: make the index file format extensible. cache-tree: protect against "git prune". ... Conflicts: Makefile, builtin.h, git.c: resolved the same way as in next.
2006-05-23Builtin git-read-tree.Libravatar Peter Eriksen1-0/+882
Signed-off-by: Peter Eriksen <s022018@student.dtu.dk> Signed-off-by: Junio C Hamano <junkio@cox.net>