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2012-02-14Merge branch 'jk/git-dir-lookup'Libravatar Junio C Hamano1-0/+1
* jk/git-dir-lookup: standardize and improve lookup rules for external local repos
2012-02-02standardize and improve lookup rules for external local reposLibravatar Jeff King1-0/+1
When you specify a local repository on the command line of clone, ls-remote, upload-pack, receive-pack, or upload-archive, or in a request to git-daemon, we perform a little bit of lookup magic, doing things like looking in working trees for .git directories and appending ".git" for bare repos. For clone, this magic happens in get_repo_path. For everything else, it happens in enter_repo. In both cases, there are some ambiguous or confusing cases that aren't handled well, and there is one case that is not handled the same by both methods. This patch tries to provide (and test!) standard, sensible lookup rules for both code paths. The intended changes are: 1. When looking up "foo", we have always preferred a working tree "foo" (containing "foo/.git" over the bare "foo.git". But we did not prefer a bare "foo" over "foo.git". With this patch, we do so. 2. We would select directories that existed but didn't actually look like git repositories. With this patch, we make sure a selected directory looks like a git repo. Not only is this more sensible in general, but it will help anybody who is negatively affected by change (1) negatively (e.g., if they had "foo.git" next to its separate work tree "foo", and expect to keep finding "foo.git" when they reference "foo"). 3. The enter_repo code path would, given "foo", look for "foo.git/.git" (i.e., do the ".git" append magic even for a repo with working tree). The clone code path did not; with this patch, they now behave the same. In the unlikely case of a working tree overlaying a bare repo (i.e., a ".git" directory _inside_ a bare repo), we continue to treat it as a working tree (prefering the "inner" .git over the bare repo). This is mainly because the combination seems nonsensical, and I'd rather stick with existing behavior on the off chance that somebody is relying on it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-08server_supports(): parse feature list more carefullyLibravatar Junio C Hamano1-0/+1
We have been carefully choosing feature names used in the protocol extensions so that the vocabulary does not contain a word that is a substring of another word, so it is not a real problem, but we have recently added "quiet" feature word, which would mean we cannot later add some other word with "quiet" (e.g. "quiet-push"), which is awkward. Let's make sure that we can eventually be able to do so by teaching the clients and servers that feature words consist of non whitespace letters. This parser also allows us to later add features with parameters e.g. "feature=1.5" (parameter values need to be quoted for whitespaces, but we will worry about the detauls when we do introduce them). Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-22Merge branch 'jk/git-prompt'Libravatar Junio C Hamano1-1/+0
* jk/git-prompt: contrib: add credential helper for OS X Keychain Makefile: OS X has /dev/tty Makefile: linux has /dev/tty credential: use git_prompt instead of git_getpass prompt: use git_terminal_prompt add generic terminal prompt function refactor git_getpass into generic prompt function move git_getpass to its own source file imap-send: don't check return value of git_getpass imap-send: avoid buffer overflow Conflicts: Makefile
2011-12-20Merge branch 'mh/ref-api'Libravatar Junio C Hamano1-2/+2
* mh/ref-api: add_ref(): take a (struct ref_entry *) parameter create_ref_entry(): extract function from add_ref() repack_without_ref(): remove temporary resolve_gitlink_ref_recursive(): change to work with struct ref_cache Pass a (ref_cache *) to the resolve_gitlink_*() helper functions resolve_gitlink_ref(): improve docstring get_ref_dir(): change signature refs: change signatures of get_packed_refs() and get_loose_refs() is_dup_ref(): extract function from sort_ref_array() add_ref(): add docstring parse_ref_line(): add docstring is_refname_available(): remove the "quiet" argument clear_ref_array(): rename from free_ref_array() refs: rename parameters result -> sha1 refs: rename "refname" variables struct ref_entry: document name member Conflicts: cache.h refs.c
2011-12-19Merge branch 'jk/fetch-no-tail-match-refs'Libravatar Junio C Hamano1-2/+1
* jk/fetch-no-tail-match-refs: connect.c: drop path_match function fetch-pack: match refs exactly t5500: give fully-qualified refs to fetch-pack drop "match" parameter from get_remote_heads
2011-12-19Merge branch 'nd/resolve-ref'Libravatar Junio C Hamano1-1/+2
* nd/resolve-ref: Rename resolve_ref() to resolve_ref_unsafe() Convert resolve_ref+xstrdup to new resolve_refdup function revert: convert resolve_ref() to read_ref_full()
2011-12-16Merge branch 'jc/stream-to-pack'Libravatar Junio C Hamano1-0/+2
* jc/stream-to-pack: bulk-checkin: replace fast-import based implementation csum-file: introduce sha1file_checkpoint finish_tmp_packfile(): a helper function create_tmp_packfile(): a helper function write_pack_header(): a helper function Conflicts: pack.h
2011-12-13connect.c: drop path_match functionLibravatar Jeff King1-1/+0
This function was used for comparing local and remote ref names during fetch (which makes it a candidate for "most confusingly named function of the year"). It no longer has any callers, so let's get rid of it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13drop "match" parameter from get_remote_headsLibravatar Jeff King1-1/+1
The get_remote_heads function reads the list of remote refs during git protocol session. It dates all the way back to def88e9 (Commit first cut at "git-fetch-pack", 2005-07-04). At that time, the idea was to come up with a list of refs we were interested in, and then filter the list as we got it from the remote side. Later, 1baaae5 (Make maximal use of the remote refs, 2005-10-28) stopped filtering at the get_remote_heads layer, letting us use the non-matching refs to find common history. As a result, all callers now simply pass an empty match list (and any future callers will want to do the same). So let's drop these now-useless parameters. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13Rename resolve_ref() to resolve_ref_unsafe()Libravatar Nguyễn Thái Ngọc Duy1-1/+1
resolve_ref() may return a pointer to a shared buffer and can be overwritten by the next resolve_ref() calls. Callers need to pay attention, not to keep the pointer when the next call happens. Rename with "_unsafe" suffix to warn developers (or reviewers) before introducing new call sites. This patch is generated using the following command git grep -l 'resolve_ref(' -- '*.[ch]'|xargs sed -i 's/resolve_ref(/resolve_ref_unsafe(/g' Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13Convert resolve_ref+xstrdup to new resolve_refdup functionLibravatar Nguyễn Thái Ngọc Duy1-0/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12move git_getpass to its own source fileLibravatar Jeff King1-1/+0
This is currently in connect.c, but really has nothing to do with the git protocol itself. Let's make a new source file all about prompting the user, which will make it cleaner to refactor. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12refs: rename "refname" variablesLibravatar Michael Haggerty1-3/+3
Try to consistently use the variable name "refname" when referring to a string that names a reference. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-09Merge branch 'nd/resolve-ref'Libravatar Junio C Hamano1-0/+2
* nd/resolve-ref: Copy resolve_ref() return value for longer use Convert many resolve_ref() calls to read_ref*() and ref_exists() Conflicts: builtin/fmt-merge-msg.c builtin/merge.c refs.c
2011-12-09Merge branch 'jc/pull-signed-tag'Libravatar Junio C Hamano1-1/+1
* jc/pull-signed-tag: commit-tree: teach -m/-F options to read logs from elsewhere commit-tree: update the command line parsing commit: teach --amend to carry forward extra headers merge: force edit and no-ff mode when merging a tag object commit: copy merged signed tags to headers of merge commit merge: record tag objects without peeling in MERGE_HEAD merge: make usage of commit->util more extensible fmt-merge-msg: Add contents of merged tag in the merge message fmt-merge-msg: package options into a structure fmt-merge-msg: avoid early returns refs DWIMmery: use the same rule for both "git fetch" and others fetch: allow "git fetch $there v1.0" to fetch a tag merge: notice local merging of tags and keep it unwrapped fetch: do not store peeled tag object names in FETCH_HEAD Split GPG interface into its own helper library Conflicts: builtin/fmt-merge-msg.c builtin/merge.c
2011-12-01bulk-checkin: replace fast-import based implementationLibravatar Junio C Hamano1-0/+2
This extends the earlier approach to stream a large file directly from the filesystem to its own packfile, and allows "git add" to send large files directly into a single pack. Older code used to spawn fast-import, but the new bulk-checkin API replaces it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-13Convert many resolve_ref() calls to read_ref*() and ref_exists()Libravatar Nguyễn Thái Ngọc Duy1-0/+2
resolve_ref() may return a pointer to a static buffer, which is not safe for long-term use because if another resolve_ref() call happens, the buffer may be changed. Many call sites though do not care about this buffer. They simply check if the return value is NULL or not. Convert all these call sites to new wrappers to reduce resolve_ref() calls from 57 to 34. If we change resolve_ref() prototype later on to avoid passing static buffer out, this helps reduce changes. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-07refs DWIMmery: use the same rule for both "git fetch" and othersLibravatar Junio C Hamano1-1/+1
"git log frotz" can DWIM to "refs/remotes/frotz/HEAD", but in the remote access context, "git fetch frotz" to fetch what the other side happened to have fetched from what it calls 'frotz' (which may not have any relation to what we consider is 'frotz') the last time would not make much sense, so the fetch rules table did not include "refs/remotes/%.*s/HEAD". When the user really wants to, "git fetch $there remotes/frotz/HEAD" would let her do so anyway, so this is not about safety or security; it merely is about confusion avoidance and discouraging meaningless usage. Specifically, it is _not_ about ambiguity avoidance. A name that would become ambiguous if we use the same rules table for both fetch and local rev-parse would be ambiguous locally at the remote side. So for the same reason as we added rule to allow "git fetch $there v1.0" instead of "git fetch $there tags/v1.0" in the previous commit, here is a bit longer rope for the users, which incidentally simplifies our code. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-26cache.h: put single NUL at end of struct cache_entryLibravatar René Scharfe1-1/+1
Since in-memory index entries are allocated individually now, the variable slack at the end meant to provide an eight byte alignment is not needed anymore. Have a single NUL instead. This saves zero to seven bytes for an entry, depending on its filename length. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-26read-cache.c: allocate index entries individuallyLibravatar René Scharfe1-1/+0
The code to estimate the in-memory size of the index based on its on-disk representation is subtly wrong for certain architecture-dependent struct layouts. Instead of fixing it, replace the code to keep the index entries in a single large block of memory and allocate each entry separately instead. This is both simpler and more flexible, as individual entries can now be freed. Actually using that added flexibility is left for a later patch. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-21Merge branch 'jk/maint-pack-objects-compete-with-delete'Libravatar Junio C Hamano1-0/+1
* jk/maint-pack-objects-compete-with-delete: downgrade "packfile cannot be accessed" errors to warnings pack-objects: protect against disappearing packs
2011-10-21Merge branch 'ph/transport-with-gitfile'Libravatar Junio C Hamano1-1/+1
* ph/transport-with-gitfile: Fix is_gitfile() for files too small or larger than PATH_MAX to be a gitfile Add test showing git-fetch groks gitfiles Teach transport about the gitfile mechanism Learn to handle gitfiles in enter_repo enter_repo: do not modify input
2011-10-17Merge branch 'bc/attr-ignore-case'Libravatar Junio C Hamano1-0/+1
* bc/attr-ignore-case: attr.c: respect core.ignorecase when matching attribute patterns attr: read core.attributesfile from git_default_core_config builtin/mv.c: plug miniscule memory leak cleanup: use internal memory allocation wrapper functions everywhere attr.c: avoid inappropriate access to strbuf "buf" member Conflicts: transport-helper.c
2011-10-17Merge branch 'jk/name-hash-dirent'Libravatar Junio C Hamano1-0/+1
* jk/name-hash-dirent: fix phantom untracked files when core.ignorecase is set
2011-10-14pack-objects: protect against disappearing packsLibravatar Jeff King1-0/+1
It's possible that while pack-objects is running, a simultaneously running prune process might delete a pack that we are interested in. Because we load the pack indices early on, we know that the pack contains our item, but by the time we try to open and map it, it is gone. Since c715f78, we already protect against this in the normal object access code path, but pack-objects accesses the packs at a lower level. In the normal access path, we call find_pack_entry, which will call find_pack_entry_one on each pack index, which does the actual lookup. If it gets a hit, we will actually open and verify the validity of the matching packfile (using c715f78's is_pack_valid). If we can't open it, we'll issue a warning and pretend that we didn't find it, causing us to go on to the next pack (or on to loose objects). Furthermore, we will cache the descriptor to the opened packfile. Which means that later, when we actually try to access the object, we are likely to still have that packfile opened, and won't care if it has been unlinked from the filesystem. Notice the "likely" above. If there is another pack access in the interim, and we run out of descriptors, we could close the pack. And then a later attempt to access the closed pack could fail (we'll try to re-open it, of course, but it may have been deleted). In practice, this doesn't happen because we tend to look up items and then access them immediately. Pack-objects does not follow this code path. Instead, it accesses the packs at a much lower level, using find_pack_entry_one directly. This means we skip the is_pack_valid check, and may end up with the name of a packfile, but no open descriptor. We can add the same is_pack_valid check here. Unfortunately, the access patterns of pack-objects are not quite as nice for keeping lookup and object access together. We look up each object as we find out about it, and the only later when writing the packfile do we necessarily access it. Which means that the opened packfile may be closed in the interim. In practice, however, adding this check still has value, for three reasons. 1. If you have a reasonable number of packs and/or a reasonable file descriptor limit, you can keep all of your packs open simultaneously. If this is the case, then the race is impossible to trigger. 2. Even if you can't keep all packs open at once, you may end up keeping the deleted one open (i.e., you may get lucky). 3. The race window is shortened. You may notice early that the pack is gone, and not try to access it. Triggering the problem without this check means deleting the pack any time after we read the list of index files, but before we access the looked-up objects. Triggering it with this check means deleting the pack means deleting the pack after we do a lookup (and successfully access the packfile), but before we access the object. Which is a smaller window. Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-10Merge branch 'mh/check-ref-format-3'Libravatar Junio C Hamano1-1/+42
* mh/check-ref-format-3: (23 commits) add_ref(): verify that the refname is formatted correctly resolve_ref(): expand documentation resolve_ref(): also treat a too-long SHA1 as invalid resolve_ref(): emit warnings for improperly-formatted references resolve_ref(): verify that the input refname has the right format remote: avoid passing NULL to read_ref() remote: use xstrdup() instead of strdup() resolve_ref(): do not follow incorrectly-formatted symbolic refs resolve_ref(): extract a function get_packed_ref() resolve_ref(): turn buffer into a proper string as soon as possible resolve_ref(): only follow a symlink that contains a valid, normalized refname resolve_ref(): use prefixcmp() resolve_ref(): explicitly fail if a symlink is not readable Change check_refname_format() to reject unnormalized refnames Inline function refname_format_print() Make collapse_slashes() allocate memory for its result Do not allow ".lock" at the end of any refname component Refactor check_refname_format() Change check_ref_format() to take a flags argument Change bad_ref_char() to return a boolean value ...
2011-10-10Merge branch 'cb/common-prefix-unification'Libravatar Junio C Hamano1-1/+0
* cb/common-prefix-unification: rename pathspec_prefix() to common_prefix() and move to dir.[ch] consolidate pathspec_prefix and common_prefix remove prefix argument from pathspec_prefix
2011-10-10Merge branch 'fg/submodule-git-file-git-dir'Libravatar Junio C Hamano1-0/+1
* fg/submodule-git-file-git-dir: Move git-dir for submodules rev-parse: add option --resolve-git-dir <path> Conflicts: cache.h git-submodule.sh
2011-10-07fix phantom untracked files when core.ignorecase is setLibravatar Jeff King1-0/+1
When core.ignorecase is turned on and there are stale index entries, "git commit" can sometimes report directories as untracked, even though they contain tracked files. You can see an example of this with: # make a case-insensitive repo git init repo && cd repo && git config core.ignorecase true && # with some tracked files in a subdir mkdir subdir && > subdir/one && > subdir/two && git add . && git commit -m base && # now make the index entries stale touch subdir/* && # and then ask commit to update those entries and show # us the status template git commit -a which will report "subdir/" as untracked, even though it clearly contains two tracked files. What is happening in the commit program is this: 1. We load the index, and for each entry, insert it into the index's name_hash. In addition, if ignorecase is turned on, we make an entry in the name_hash for the directory (e.g., "contrib/"), which uses the following code from 5102c61's hash_index_entry_directories: hash = hash_name(ce->name, ptr - ce->name); if (!lookup_hash(hash, &istate->name_hash)) { pos = insert_hash(hash, &istate->name_hash); if (pos) { ce->next = *pos; *pos = ce; } } Note that we only add the directory entry if there is not already an entry. 2. We run add_files_to_cache, which gets updated information for each cache entry. It helpfully inserts this information into the cache, which calls replace_index_entry. This in turn calls remove_name_hash() on the old entry, and add_name_hash() on the new one. But remove_name_hash doesn't actually remove from the hash, it only marks it as "no longer interesting" (from cache.h): /* * We don't actually *remove* it, we can just mark it invalid so that * we won't find it in lookups. * * Not only would we have to search the lists (simple enough), but * we'd also have to rehash other hash buckets in case this makes the * hash bucket empty (common). So it's much better to just mark * it. */ static inline void remove_name_hash(struct cache_entry *ce) { ce->ce_flags |= CE_UNHASHED; } This is OK in the specific-file case, since the entries in the hash form a linked list, and we can just skip the "not here anymore" entries during lookup. But for the directory hash entry, we will _not_ write a new entry, because there is already one there: the old one that is actually no longer interesting! 3. While traversing the directories, we end up in the directory_exists_in_index_icase function to see if a directory is interesting. This in turn checks index_name_exists, which will look up the directory in the index's name_hash. We see the old, deleted record, and assume there is nothing interesting. The directory gets marked as untracked, even though there are index entries in it. The problem is in the code I showed above: hash = hash_name(ce->name, ptr - ce->name); if (!lookup_hash(hash, &istate->name_hash)) { pos = insert_hash(hash, &istate->name_hash); if (pos) { ce->next = *pos; *pos = ce; } } Having a single cache entry that represents the directory is not enough; that entry may go away if the index is changed. It may be tempting to say that the problem is in our removal method; if we removed the entry entirely instead of simply marking it as "not here anymore", then we would know we need to insert a new entry. But that only covers this particular case of remove-replace. In the more general case, consider something like this: 1. We add "foo/bar" and "foo/baz" to the index. Each gets their own entry in name_hash, plus we make a "foo/" entry that points to "foo/bar". 2. We remove the "foo/bar" entry from the index, and from the name_hash. 3. We ask if "foo/" exists, and see no entry, even though "foo/baz" exists. So we need that directory entry to have the list of _all_ cache entries that indicate that the directory is tracked. So that implies making a linked list as we do for other entries, like: hash = hash_name(ce->name, ptr - ce->name); pos = insert_hash(hash, &istate->name_hash); if (pos) { ce->next = *pos; *pos = ce; } But that's not right either. In fact, it shows a second bug in the current code, which is that the "ce->next" pointer is supposed to be linking entries for a specific filename entry, but here we are overwriting it for the directory entry. So the same cache entry ends up in two linked lists, but they share the same "next" pointer. As it turns out, this second bug can't be triggered in the current code. The "if (pos)" conditional is totally dead code; pos will only be non-NULL if there was an existing hash entry, and we already checked that there wasn't one through our call to lookup_hash. But fixing the first bug means taking out that call to lookup_hash, which is going to activate the buggy dead code, and we'll end up splicing the two linked lists together. So we need to have a separate next pointer for the list in the directory bucket, and we need to traverse that list in index_name_exists when we are looking up a directory. This bloats "struct cache_entry" by a few bytes. Which is annoying, because it's only necessary when core.ignorecase is enabled. There's not an easy way around it, short of separating out the "next" pointers from cache_entry entirely (i.e., having a separate "cache_entry_list" struct that gets stored in the name_hash). In practice, it probably doesn't matter; we have thousands of cache entries, compared to the millions of objects (where adding 4 bytes to the struct actually does impact performance). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-06attr: read core.attributesfile from git_default_core_configLibravatar Junio C Hamano1-0/+1
This code calls git_config from a helper function to parse the config entry it is interested in. Calling git_config in this way may cause a problem if the helper function can be called after a previous call to git_config by another function since the second call to git_config may reset some variable to the value in the config file which was previously overridden. The above is not a problem in this case since the function passed to git_config only parses one config entry and the variable it sets is not assigned outside of the parsing function. But a programmer who desires all of the standard config options to be parsed may be tempted to modify git_attr_config() so that it falls back to git_default_config() and then it _would_ be vulnerable to the above described behavior. So, move the call to git_config up into the top-level cmd_* function and move the responsibility for parsing core.attributesfile into the main config file parser. Which is only the logical thing to do ;-) Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): expand documentationLibravatar Michael Haggerty1-1/+33
Record information about resolve_ref(), hard-won via reverse engineering, in a comment for future spelunkers. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05get_sha1_hex(): do not read past a NUL characterLibravatar Michael Haggerty1-0/+9
Previously, get_sha1_hex() would read one character past the end of a null-terminated string whose strlen was an even number less than 40. Although the function correctly returned -1 in these cases, the extra memory access might have been to uninitialized (or even, conceivably, unallocated) memory. Add a check to avoid reading past the end of a string. This problem was discovered by Thomas Rast <trast@student.ethz.ch> using valgrind. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Merge branch 'rr/revert-cherry-pick-continue'Libravatar Junio C Hamano1-0/+2
* rr/revert-cherry-pick-continue: builtin/revert.c: make commit_list_append() static revert: Propagate errors upwards from do_pick_commit revert: Introduce --continue to continue the operation revert: Don't implicitly stomp pending sequencer operation revert: Remove sequencer state when no commits are pending reset: Make reset remove the sequencer state revert: Introduce --reset to remove sequencer state revert: Make pick_commits functionally act on a commit list revert: Save command-line options for continuing operation revert: Save data for continuing after conflict resolution revert: Don't create invalid replay_opts in parse_args revert: Separate cmdline parsing from functional code revert: Introduce struct to keep command-line options revert: Eliminate global "commit" variable revert: Rename no_replay to record_origin revert: Don't check lone argument in get_encoding revert: Simplify and inline add_message_to_msg config: Introduce functions to write non-standard file advice: Introduce error_resolve_conflict
2011-10-04enter_repo: do not modify inputLibravatar Erik Faye-Lund1-1/+1
entr_repo(..., 0) currently modifies the input to strip away trailing slashes. This means that we some times need to copy the input to keep the original. Change it to unconditionally copy it into the used_path buffer so we can safely use the input without having to copy it. Also store a working copy in validated_path up-front before we start resolving anything. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Phil Hord <hordp@cisco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-12rename pathspec_prefix() to common_prefix() and move to dir.[ch]Libravatar Clemens Buchacher1-1/+0
Also make common_prefix_len() static as this refactoring makes dir.c itself the only caller of this helper function. Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-06remove prefix argument from pathspec_prefixLibravatar Clemens Buchacher1-1/+1
Passing a prefix to a function that is supposed to find the prefix is strange. And it's really only used if the pathspec is NULL. Make the callers handle this case instead. As we are always returning a fresh copy of a string (or NULL), change the type of the returned value to non-const "char *". Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-28Merge branch 'nd/maint-clone-gitdir'Libravatar Junio C Hamano1-1/+1
* nd/maint-clone-gitdir: clone: allow to clone from .git file read_gitfile_gently(): rename misnamed function to read_gitfile()
2011-08-23Merge branch 'cb/maint-ls-files-error-report'Libravatar Junio C Hamano1-1/+1
* cb/maint-ls-files-error-report: ls-files: fix pathspec display on error
2011-08-22read_gitfile_gently(): rename misnamed function to read_gitfile()Libravatar Junio C Hamano1-1/+1
The function was not gentle at all to the callers and died without giving them a chance to deal with possible errors. Rename it to read_gitfile(), and update all the callers. As no existing caller needs a true "gently" variant, we do not bother adding one at this point. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-17Merge branch 'js/ref-namespaces'Libravatar Junio C Hamano1-0/+3
* js/ref-namespaces: ref namespaces: tests ref namespaces: documentation ref namespaces: Support remote repositories via upload-pack and receive-pack ref namespaces: infrastructure Fix prefix handling in ref iteration functions
2011-08-16rev-parse: add option --resolve-git-dir <path>Libravatar Fredrik Gustafsson1-0/+1
Check if <path> is a valid git-dir or a valid git-file that points to a valid git-dir. We want tests to be independent from the fact that a git-dir may be a git-file. Thus we changed tests to use this feature. Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com> Mentored-by: Jens Lehmann <Jens.Lehmann@web.de> Mentored-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11ls-files: fix pathspec display on errorLibravatar Clemens Buchacher1-1/+1
The following sequence of commands reveals an issue with error reporting of relative paths: $ mkdir sub $ cd sub $ git ls-files --error-unmatch ../bbbbb error: pathspec 'b' did not match any file(s) known to git. $ git commit --error-unmatch ../bbbbb error: pathspec 'b' did not match any file(s) known to git. This bug is visible only if the normalized path (i.e., the relative path from the repository root) is longer than the prefix. Otherwise, the code skips over the normalized path and reads from an unused memory location which still contains a leftover of the original command line argument. So instead, use the existing facilities to deal with relative paths correctly. Also fix inconsistency between "checkout" and "commit", e.g. $ cd Documentation $ git checkout nosuch.txt error: pathspec 'Documentation/nosuch.txt' did not match... $ git commit nosuch.txt error: pathspec 'nosuch.txt' did not match... by propagating the prefix down the codepath that reports the error. Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11Merge branch 'cb/partial-commit-relative-pathspec'Libravatar Junio C Hamano1-0/+1
* cb/partial-commit-relative-pathspec: commit: allow partial commits with relative paths
2011-08-05Merge branch 'jc/pack-order-tweak'Libravatar Junio C Hamano1-0/+3
* jc/pack-order-tweak: pack-objects: optimize "recency order" core: log offset pack data accesses happened
2011-08-04config: Introduce functions to write non-standard fileLibravatar Ramkumar Ramachandra1-0/+2
Introduce two new functions corresponding to "git_config_set" and "git_config_set_multivar" to write a non-standard configuration file. Expose these new functions in cache.h for other git programs to use. Helped-by: Jeff King <peff@peff.net> Helped-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-02commit: allow partial commits with relative pathsLibravatar Clemens Buchacher1-0/+1
In order to do partial commits, git-commit overlays a tree on the cache and checks pathspecs against the result. Currently, the overlaying is done using "prefix" which prevents relative pathspecs with ".." and absolute pathspec from matching when they refer to files not under "prefix" and absent from the index, but still in the tree (i.e. files staged for removal). The point of providing a prefix at all is performance optimization. If we say there is no common prefix for the files of interest, then we have to read the entire tree into the index. But even if we cannot use the working directory as a prefix, we can still figure out if there is a common prefix for all given paths, and use that instead. The pathspec_prefix() routine from ls-files.c does exactly that. Any use of global variables is removed from pathspec_prefix() so that it can be called from commit.c. Reported-by: Reuben Thomas <rrt@sc3d.org> Analyzed-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-19Merge branch 'jc/index-pack'Libravatar Junio C Hamano1-1/+0
* jc/index-pack: verify-pack: use index-pack --verify index-pack: show histogram when emulating "verify-pack -v" index-pack: start learning to emulate "verify-pack -v" index-pack: a miniscule refactor index-pack --verify: read anomalous offsets from v2 idx file write_idx_file: need_large_offset() helper function index-pack: --verify write_idx_file: introduce a struct to hold idx customization options index-pack: group the delta-base array entries also by type Conflicts: builtin/verify-pack.c cache.h sha1_file.c
2011-07-19Merge branch 'jk/clone-cmdline-config'Libravatar Junio C Hamano1-0/+2
* jk/clone-cmdline-config: clone: accept config options on the command line config: make git_config_parse_parameter a public function remote: use new OPT_STRING_LIST parse-options: add OPT_STRING_LIST helper
2011-07-19Merge branch 'jc/zlib-wrap'Libravatar Junio C Hamano1-9/+23
* jc/zlib-wrap: zlib: allow feeding more than 4GB in one go zlib: zlib can only process 4GB at a time zlib: wrap deflateBound() too zlib: wrap deflate side of the API zlib: wrap inflateInit2 used to accept only for gzip format zlib: wrap remaining calls to direct inflate/inflateEnd zlib wrapper: refactor error message formatter Conflicts: sha1_file.c