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2010-01-24Merge branch 'jc/fix-tree-walk'Libravatar Junio C Hamano1-0/+36
* jc/fix-tree-walk: read-tree --debug-unpack unpack-trees.c: look ahead in the index unpack-trees.c: prepare for looking ahead in the index Aggressive three-way merge: fix D/F case traverse_trees(): handle D/F conflict case sanely more D/F conflict tests tests: move convenience regexp to match object names to test-lib.sh Conflicts: builtin-read-tree.c unpack-trees.c unpack-trees.h
2010-01-20Merge branch 'jc/cache-unmerge'Libravatar Junio C Hamano1-0/+2
* jc/cache-unmerge: rerere forget path: forget recorded resolution rerere: refactor rerere logic to make it independent from I/O rerere: remove silly 1024-byte line limit resolve-undo: teach "update-index --unresolve" to use resolve-undo info resolve-undo: "checkout -m path" uses resolve-undo information resolve-undo: allow plumbing to clear the information resolve-undo: basic tests resolve-undo: record resolved conflicts in a new index extension section builtin-merge.c: use standard active_cache macros Conflicts: builtin-ls-files.c builtin-merge.c builtin-rerere.c
2010-01-13Merge branch 'nd/sparse'Libravatar Junio C Hamano1-1/+3
* nd/sparse: (25 commits) t7002: test for not using external grep on skip-worktree paths t7002: set test prerequisite "external-grep" if supported grep: do not do external grep on skip-worktree entries commit: correctly respect skip-worktree bit ie_match_stat(): do not ignore skip-worktree bit with CE_MATCH_IGNORE_VALID tests: rename duplicate t1009 sparse checkout: inhibit empty worktree Add tests for sparse checkout read-tree: add --no-sparse-checkout to disable sparse checkout support unpack-trees(): ignore worktree check outside checkout area unpack_trees(): apply $GIT_DIR/info/sparse-checkout to the final index unpack-trees(): "enable" sparse checkout and load $GIT_DIR/info/sparse-checkout unpack-trees.c: generalize verify_* functions unpack-trees(): add CE_WT_REMOVE to remove on worktree alone Introduce "sparse checkout" dir.c: export excluded_1() and add_excludes_from_file_1() excluded_1(): support exclude files in index unpack-trees(): carry skip-worktree bit over in merged_entry() Read .gitignore from index if it is skip-worktree Avoid writing to buffer in add_excludes_from_file_1() ... Conflicts: .gitignore Documentation/config.txt Documentation/git-update-index.txt Makefile entry.c t/t7002-grep.sh
2010-01-07read-tree --debug-unpackLibravatar Junio C Hamano1-0/+36
A debugging patch. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-25resolve-undo: record resolved conflicts in a new index extension sectionLibravatar Junio C Hamano1-0/+2
When resolving a conflict using "git add" to create a stage #0 entry, or "git rm" to remove entries at higher stages, remove_index_entry_at() function is eventually called to remove unmerged (i.e. higher stage) entries from the index. Introduce a "resolve_undo_info" structure and keep track of the removed cache entries, and save it in a new index extension section in the index_state. Operations like "read-tree -m", "merge", "checkout [-m] <branch>" and "reset" are signs that recorded information in the index is no longer necessary. The data is removed from the index extension when operations start; they may leave conflicted entries in the index, and later user actions like "git add" will record their conflicted states afresh. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10Let 'git <command> -h' show usage without a git dirLibravatar Jonathan Nieder1-2/+2
There is no need for "git <command> -h" to depend on being inside a repository. Reported by Gerfried Fuchs through http://bugs.debian.org/462557 Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-23read-tree: add --no-sparse-checkout to disable sparse checkout supportLibravatar Nguyễn Thái Ngọc Duy1-1/+3
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-17read-tree: Fix regression with creation of a new index file.Libravatar Alexandre Julliard1-4/+6
Reading the index into an empty file has been broken by 5a56da58060e50980fab0f4c38203a25440d1530, since it causes the existing index to always be loaded first, and dies if it's an empty file: $ GIT_INDEX_FILE=`mktemp` git read-tree master fatal: index file smaller than expected It breaks for instance committing from git.el. This patch reverts to the previous behavior of only loading the index when merging it. Signed-off-by: Alexandre Julliard <julliard@winehq.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27read-tree: migrate to parse-optionsLibravatar Stephen Boyd1-96/+74
Cleanup the documentation to explicitly state that --exclude-directory is only meaningful when used with -u. Also make the documentation more consistent with the usage message printed with read-tree --help-all. The -m, --prefix, --reset options are performing similar actions (setting some flags, read_cache_unmerged(), checking for illegal option combinations). Instead of performing these actions when the options are parsed, we delay performing them until after parse-opts has finished. The bit fields in struct unpack_trees_options have been promoted to full unsigned ints. This is necessary to avoid "foo ? 1 : 0" constructs to set these fields. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27read-tree: convert unhelpful usage()'s to helpful die()'sLibravatar Stephen Boyd1-3/+3
Printing the usage message when encountering bad option combinations is not very helpful. Instead, die with a message which tells the user exactly what combination is invalid. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-22Merge branch 'jc/maint-read-tree-multi'Libravatar Junio C Hamano1-40/+8
* jc/maint-read-tree-multi: checkout branch: prime cache-tree fully read-tree -m A B: prime cache-tree from the switched-to tree Move prime_cache_tree() to cache-tree.c read-tree A B: do not corrupt cache-tree
2009-04-20read-tree -m A B: prime cache-tree from the switched-to treeLibravatar Junio C Hamano1-0/+5
When switching to a new branch with "read-tree -m A B", the resulting index must match tree B and we can prime the cache tree with it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-20Move prime_cache_tree() to cache-tree.cLibravatar Junio C Hamano1-36/+1
The interface to build cache-tree belongs there. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-20read-tree A B: do not corrupt cache-treeLibravatar Junio C Hamano1-4/+2
An earlier commit aab3b9a (read-tree A B C: do not create a bogus index and do not segfault, 2009-03-12) resurrected the support for an obscure (but useful) feature to read and overlay more than one tree into the index without the -m (merge) option. But the fix was not enough. Exercising this feature exposes a longstanding bug in the code that primes the cache-tree in the index from the tree that was read. The intention was that when we know that the index must exactly match the tree we just read, we prime the entire cache-tree with it. However, the logic to detect that case incorrectly triggered if you read two trees without -m. This resulted in a corrupted cache-tree, and write-tree would have produced an incorrect tree object out of such an index. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-18Turn the flags in struct dir_struct into a single variableLibravatar Johannes Schindelin1-1/+1
By having flags represented as bits in the new member variable 'flags', it will be easier to use parse_options when dir_struct is involved. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-12checkout: Fix "initial checkout" detectionLibravatar Junio C Hamano1-1/+1
Earlier commit 5521883 (checkout: do not lose staged removal, 2008-09-07) tightened the rule to prevent switching branches from losing local changes, so that staged removal of paths can be protected, while attempting to keep a loophole to still allow a special case of switching out of an un-checked-out state. However, the loophole was made a bit too tight, and did not allow switching from one branch (in an un-checked-out state) to check out another branch. The change to builtin-checkout.c in this commit loosens it to allow this, by not insisting the original commit and the new commit to be the same. It also introduces a new function, is_index_unborn (and an associated macro, is_cache_unborn), to check if the repository is truly in an un-checked-out state more reliably, by making sure that $GIT_INDEX_FILE did not exist when populating the in-core index structure. A few places the earlier commit 5521883 added the check for the initial checkout condition are updated to use this function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-18Merge branch 'jc/maint-checkout-keep-remove' into maintLibravatar Junio C Hamano1-0/+1
* jc/maint-checkout-keep-remove: checkout: do not lose staged removal
2008-09-15Start conforming code to "git subcmd" style part 3Libravatar Heikki Orsila1-1/+1
User notifications are presented as 'git cmd', and code comments are presented as '"cmd"' or 'git's cmd', rather than 'git-cmd'. Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-09checkout: do not lose staged removalLibravatar Junio C Hamano1-0/+1
The logic to checkout a different commit implements the safety to never lose user's local changes. For example, switching from a commit to another commit, when you have changed a path that is different between them, need to merge your changes to the version from the switched-to commit, which you may not necessarily be able to resolve easily. By default, "git checkout" refused to switch branches, to give you a chance to stash your local changes (or use "-m" to merge, accepting the risks of getting conflicts). This safety, however, had one deliberate hole since early June 2005. When your local change was to remove a path (and optionally to stage that removal), the command checked out the path from the switched-to commit nevertheless. This was to allow an initial checkout to happen smoothly (e.g. an initial checkout is done by starting with an empty index and switching from the commit at the HEAD to the same commit). We can tighten the rule slightly to allow this special case to pass, without losing sight of removal explicitly done by the user, by noticing if the index is truly empty when the operation begins. For historical background, see: http://thread.gmane.org/gmane.comp.version-control.git/4641/focus=4646 This case is marked as *0* in the message, which both Linus and I said "it feels somewhat wrong but otherwise we cannot start from an empty index". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-28read-tree: setup worktree if merge is requiredLibravatar Nguyễn Thái Ngọc Duy1-0/+2
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-30Move read_cache_unmerged() to read-cache.cLibravatar Miklos Vajna1-24/+0
builtin-read-tree has a read_cache_unmerged() which is useful for other builtins, for example builtin-merge uses it as well. Move it to read-cache.c to avoid code duplication. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-14Provide git_config with a callback-data parameterLibravatar Johannes Schindelin1-3/+1
git_config() only had a function parameter, but no callback data parameter. This assumes that all callback functions only modify global variables. With this patch, every callback gets a void * parameter, and it is hoped that this will help the libification effort. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09Move name hashing functions into a file of its ownLibravatar Linus Torvalds1-1/+1
It's really totally separate functionality, and if we want to start doing case-insensitive hash lookups, I'd rather do it when it's separated out. It also renames "remove_index_entry()" to "remove_name_hash()", because that really describes the thing better. It doesn't actually remove the index entry, that's done by "remove_index_entry_at()", which is something very different, despite the similarity in names. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-13read-tree() and unpack_trees(): use consistent limitLibravatar Junio C Hamano1-5/+4
read-tree -m can read up to MAX_TREES, which was arbitrarily set to 8 since August 2007 (4 is needed to deal with 2 merge-base case). However, the updated unpack_trees() code had an advertised limit of 4 (which it enforced). In reality the code was prepared to take only 3 trees and giving 4 caused it to stomp on its stack. Rename the MAX_TREES constant to MAX_UNPACK_TREES, move it to the unpack-trees.h common header file, and use it from both places to avoid future confusion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-09Make 'unpack_trees()' have a separate source and destination indexLibravatar Linus Torvalds1-22/+2
We will always unpack into our own internal index, but we will take the source from wherever specified, and we will optionally write the result to a specified index (optionally, because not everybody even _wants_ any result: the index diffing really wants to just walk the tree and index in parallel). This ends up removing a fair number more lines than it adds, for the simple reason that we can now skip all the crud that tried to be oh-so-careful about maintaining our position in the index as we were traversing and modifying it. Since we don't actually modify the source index any more, we can just update the 'o->pos' pointer without worrying about whether an index entry got removed or replaced or added to. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-09Make 'unpack_trees()' take the index to work on as an argumentLibravatar Linus Torvalds1-0/+1
This is just a very mechanical conversion, and makes everybody set it to '&the_index' before calling, but at least it makes it more explicit where we work with the index. The next stage would be to split that index usage up into a 'source' and a 'destination' index, so that we can unpack into a different index than we started out from. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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>