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2014-06-13convert logmsg_reencode to get_commit_bufferLibravatar Jeff King6-35/+16
Like the callsites in the previous commit, logmsg_reencode already falls back to read_sha1_file when necessary. However, I split its conversion out into its own commit because it's a bit more complex. We return either: 1. The original commit->buffer 2. A newly allocated buffer from read_sha1_file 3. A reencoded buffer (based on either 1 or 2 above). while trying to do as few extra reads/allocations as possible. Callers currently free the result with logmsg_free, but we can simplify this by pointing them straight to unuse_commit_buffer. This is a slight layering violation, in that we may be passing a buffer from (3). However, since the end result is to free() anything except (1), which is unlikely to change, and because this makes the interface much simpler, it's a reasonable bending of the rules. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13use get_commit_buffer to avoid duplicate codeLibravatar Jeff King2-27/+7
For both of these sites, we already do the "fallback to read_sha1_file" trick. But we can shorten the code by just using get_commit_buffer. Note that the error cases are slightly different when read_sha1_file fails. get_commit_buffer will die() if the object cannot be loaded, or is a non-commit. For get_sha1_oneline, this will almost certainly never happen, as we will have just called parse_object (and if it does, it's probably worth complaining about). For record_author_date, the new behavior is probably better; we notify the user of the error instead of silently ignoring it. And because it's used only for sorting by author-date, somebody examining a corrupt repo can fallback to the regular traversal order. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13use get_cached_commit_buffer where appropriateLibravatar Jeff King3-3/+3
Some call sites check commit->buffer to see whether we have a cached buffer, and if so, do some work with it. In the long run we may want to switch these code paths to make their decision on a different boolean flag (because checking the cache may get a little more expensive in the future). But for now, we can easily support them by converting the calls to use get_cached_commit_buffer. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13provide helpers to access the commit bufferLibravatar Jeff King2-0/+49
Many sites look at commit->buffer to get more detailed information than what is in the parsed commit struct. However, we sometimes drop commit->buffer to save memory, in which case the caller would need to read the object afresh. Some callers do this (leading to duplicated code), and others do not (which opens the possibility of a segfault if somebody else frees the buffer). Let's provide a pair of helpers, "get" and "unuse", that let callers easily get the buffer. They will use the cached buffer when possible, and otherwise load from disk using read_sha1_file. Note that we also need to add a "get_cached" variant which returns NULL when we do not have a cached buffer. At first glance this seems to defeat the purpose of "get", which is to always provide a return value. However, some log code paths actually use the NULL-ness of commit->buffer as a boolean flag to decide whether to try printing the commit. At least for now, we want to continue supporting that use. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13provide a helper to set the commit bufferLibravatar Jeff King4-3/+14
Right now this is just a one-liner, but abstracting it will make it easier to change later. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13provide a helper to free commit bufferLibravatar Jeff King6-9/+30
This converts two lines into one at each caller. But more importantly, it abstracts the concept of freeing the buffer, which will make it easier to change later. Note that we also need to provide a "detach" mechanism for a tricky case in index-pack. We are passed a buffer for the object generated by processing the incoming pack. If we are not using --strict, we just calculate the sha1 on that buffer and return, leaving the caller to free it. But if we are using --strict, we actually attach that buffer to an object, pass the object to the fsck functions, and then detach the buffer from the object again (so that the caller can free it as usual). In this case, we don't want to free the buffer ourselves, but just make sure it is no longer associated with the commit. Note that we are making the assumption here that the attach/detach process does not impact the buffer at all (e.g., it is never reallocated or modified). That holds true now, and we have no plans to change that. However, as we abstract the commit_buffer code, this dependency becomes less obvious. So when we detach, let's also make sure that we get back the same buffer that we gave to the commit_buffer code. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-12sequencer: use logmsg_reencode in get_messageLibravatar Jeff King1-40/+5
This simplifies the code, as logmsg_reencode handles the reencoding for us in a single call. It also means we learn logmsg_reencode's trick of pulling the buffer from disk when commit->buffer is NULL (we currently just silently return!). It is doubtful this matters in practice, though, as sequencer operations would not generally turn off save_commit_buffer. Note that we may be fixing a bug here. The existing code does: if (same_encoding(to, from)) reencode_string(buf, to, from); That probably should have been "!same_encoding". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-12logmsg_reencode: return const bufferLibravatar Jeff King5-16/+23
The return value from logmsg_reencode may be either a newly allocated buffer or a pointer to the existing commit->buffer. We would not want the caller to accidentally free() or modify the latter, so let's mark it as const. We can cast away the constness in logmsg_free, but only once we have determined that it is a free-able buffer. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-12do not create "struct commit" with xcallocLibravatar Jeff King2-2/+2
In both blame and merge-recursive, we sometimes create a "fake" commit struct for convenience (e.g., to represent the HEAD state as if we would commit it). By allocating ourselves rather than using alloc_commit_node, we do not properly set the "index" field of the commit. This can produce subtle bugs if we then use commit-slab on the resulting commit, as we will share the "0" index with another commit. We can fix this by using alloc_commit_node() to allocate. Note that we cannot free the result, as it is part of our commit allocator. However, both cases were already leaking the allocated commit anyway, so there's nothing to fix up. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-12commit: push commit_index update into alloc_commit_nodeLibravatar Jeff King2-4/+10
Whenever we create a commit object via lookup_commit, we give it a unique index to be used with the commit-slab API. The theory is that any "struct commit" we create would follow this code path, so any such struct would get an index. However, callers could use alloc_commit_node() directly (and get multiple commits with index 0). Let's push the indexing into alloc_commit_node so that it's hard for callers to get it wrong. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-12alloc: include any-object allocations in alloc_reportLibravatar Jeff King1-6/+7
When 2c1cbec (Use proper object allocators for unknown object nodes too, 2007-04-16), added a special "any_object" allocator, it never taught alloc_report to report on it. To do so we need to add an extra type argument to the REPORT macro, as that commit did for DEFINE_ALLOCATOR. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-12replace dangerous uses of strbuf_attachLibravatar Jeff King2-8/+3
It is not a good idea to strbuf_attach an arbitrary pointer just because a function you are calling wants a strbuf. Attaching implies a transfer of memory ownership; if anyone were to modify or release the resulting strbuf, we would free() the pointer, leading to possible problems: 1. Other users of the original pointer might access freed memory. 2. The pointer might not be the start of a malloc'd area, so calling free() on it in the first place would be wrong. In the two cases modified here, we are fortunate that nobody touches the strbuf once it is attached, but it is an accident waiting to happen. Since the previous commit, commit_tree and friends take a pointer/buf pair, so we can just do away with the strbufs entirely. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-12commit_tree: take a pointer/len pair rather than a const strbufLibravatar Jeff King9-22/+29
While strbufs are pretty common throughout our code, it is more flexible for functions to take a pointer/len pair than a strbuf. It's easy to turn a strbuf into such a pair (by dereferencing its members), but less easy to go the other way (you can strbuf_attach, but that has implications about memory ownership). This patch teaches commit_tree (and its associated callers and sub-functions) to take such a pair for the commit message rather than a strbuf. This makes passing the buffer around slightly more verbose, but means we can get rid of some dangerous strbuf_attach calls in the next patch. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-30Sync with 1.9.4Libravatar Junio C Hamano2-1/+18
2014-05-30Git 1.9.4Libravatar Junio C Hamano4-3/+20
This is expected to be the final maintenance release for 1.9 series, merging the remaining fixes that are relevant and are already in 2.0. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-30t5537: re-drop http testsLibravatar Jeff King1-28/+0
These were originally removed by 0232852 (t5537: move http tests out to t5539, 2014-02-13). However, they were accidentally re-added in 1ddb4d7 (Merge branch 'nd/upload-pack-shallow', 2014-03-21). This looks like an error in manual conflict resolution. Here's what happened: 1. v1.9.0 shipped with the http tests in t5537. 2. We realized that this caused problems, and built 0232852 on top to move the tests to their own file. This fix made it into v1.9.1. 3. We later had another fix in nd/upload-pack-shallow that also touched t5537. It was built directly on v1.9.0. When we merged nd/upload-pack-shallow to master, we got a conflict; it was built on a version with the http tests, but we had since removed them. The correct resolution was to drop the http tests and keep the new ones, but instead we kept everything. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-28Merge branch 'rh/prompt-pcmode-avoid-eval-on-refname' into maintLibravatar Junio C Hamano2-20/+42
* rh/prompt-pcmode-avoid-eval-on-refname: git-prompt.sh: don't assume the shell expands the value of PS1
2014-05-28Merge branch 'mw/symlinks' into maintLibravatar Junio C Hamano3-20/+112
* mw/symlinks: setup: fix windows path buffer over-stepping setup: don't dereference in-tree symlinks for absolute paths setup: add abspath_part_inside_repo() function t0060: add tests for prefix_path when path begins with work tree t0060: add test for prefix_path when path == work tree t0060: add test for prefix_path on symlinks via absolute paths t3004: add test for ls-files on symlinks via absolute paths
2014-05-28Git 2.0Libravatar Junio C Hamano2-1/+6
2014-05-21Update draft release notes to 2.0Libravatar Junio C Hamano1-9/+5
Hopefully for the last time ;-) Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-20Git 2.0-rc4Libravatar Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-20RelNotes/2.0.0.txt: Fix several grammar issues, notably a lack of hyphens, ↵Libravatar Jason St. John1-36/+37
double quotes, or articles Signed-off-by: Jason St. John <jstjohn@purdue.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-20Revert "Merge branch 'jc/graduate-remote-hg-bzr' (early part)"Libravatar Junio C Hamano11-4360/+87
Instead of showing a warning and working as before, fail and show the message and force immediate upgrade from their upstream repositories when these tools are run, per request from their primary author. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19Merge branch 'jc/graduate-remote-hg-bzr' (early part)Libravatar Junio C Hamano6-71/+62
* 'jc/graduate-remote-hg-bzr' (early part): remote-helpers: point at their upstream repositories contrib: remote-helpers: add move warnings (v2.0) Revert "Merge branch 'fc/transport-helper-sync-error-fix'"
2014-05-19remote-helpers: point at their upstream repositoriesLibravatar Junio C Hamano1-0/+19
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19contrib: remote-helpers: add move warnings (v2.0)Libravatar Felipe Contreras2-0/+6
The tools are now maintained out-of-tree, and they have a regression in v2.0. It's better to start warning the users as soon as possible. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19Revert "Merge branch 'fc/transport-helper-sync-error-fix'"Libravatar Junio C Hamano3-71/+37
This reverts commit d508e4a8e2391ae2596403b6478d01cf3d5f928f, reversing changes made to e42552135a2a396f37053a89f44952ea907870b2. The author of the original topic says he broke the upcoming 2.0 release with something that relates to "synchronization crash regression" while refusing to give further specifics, so this would unfortunately be the safest option for the upcoming release. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19Merge branch 'rh/prompt-pcmode-avoid-eval-on-refname'Libravatar Junio C Hamano2-20/+42
* rh/prompt-pcmode-avoid-eval-on-refname: git-prompt.sh: don't assume the shell expands the value of PS1
2014-05-19git-prompt.sh: don't assume the shell expands the value of PS1Libravatar Richard Hansen2-20/+42
Not all shells subject the prompt string to parameter expansion. Test whether the shell will expand the value of PS1, and use the result to control whether raw ref names are included directly in PS1. This fixes a regression introduced in commit 8976500 ("git-prompt.sh: don't put unsanitized branch names in $PS1"): zsh does not expand PS1 by default, but that commit assumed it did. The bug resulted in prompts containing the literal string '${__git_ps1_branch_name}' instead of the actual branch name. Reported-by: Caleb Thompson <caleb@calebthompson.io> Signed-off-by: Richard Hansen <rhansen@bbn.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19Merge branch 'lt/request-pull'Libravatar Junio C Hamano2-1/+13
* lt/request-pull: request-pull: resurrect for-linus -> tags/for-linus DWIM
2014-05-19Merge branch 'jl/use-vsatisfy-correctly-for-2.0'Libravatar Junio C Hamano1-2/+2
* jl/use-vsatisfy-correctly-for-2.0: git-gui: tolerate major version changes when comparing the git version
2014-05-19Merge git://github.com/git-l10n/git-poLibravatar Junio C Hamano1-21/+21
* git://github.com/git-l10n/git-po: fr: a lot of good fixups
2014-05-19Merge branch 'kb/fast-hashmap'Libravatar Junio C Hamano1-1/+0
* kb/fast-hashmap: Documentation/technical/api-hashmap: remove source highlighting
2014-05-19Documentation/technical/api-hashmap: remove source highlightingLibravatar Anders Kaseorg1-1/+0
The highlighting was pretty, but unfortunately, the failure mode when source-highlight is not installed was that the entire code block disappears. See https://bugs.debian.org/745591, https://bugs.launchpad.net/bugs/1316810. Signed-off-by: Anders Kaseorg <andersk@mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19git-gui: tolerate major version changes when comparing the git versionLibravatar Jens Lehmann1-2/+2
Since git 2.0.0 starting git gui in a submodule using a gitfile fails with the following error: No working directory ../../../<path> couldn't change working directory to "../../../<path>": no such file or directory This is because "git rev-parse --show-toplevel" is only run when git gui sees a git version of at least 1.7.0 (which is the version in which the --show-toplevel option was introduced). But "package vsatisfies" returns false when the major version changes, which is not what we want here. Fix that for both places where the git version is checked using vsatisfies by appending a '-' to the version number. This tells vsatisfies that a change of the major version is not considered to be a problem, as long as the new major version is larger. This is done for both the place that caused the reported bug and another spot where the git version is tested for another feature. Reported-by: Chris Packham <judge.packham@gmail.com> Reported-by: Yann Dirson <ydirson@free.fr> Helped-by: Pat Thoyts <patthoyts@users.sourceforge.net> Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Tested-by: Chris Packham <judge.packham@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-17fr: a lot of good fixupsLibravatar Grégoire Paris1-21/+21
Signed-off-by: Grégoire Paris <postmaster@greg0ire.fr> Acked-by: Jean-Noel Avila <jn.avila@free.fr>
2014-05-16request-pull: resurrect for-linus -> tags/for-linus DWIMLibravatar Junio C Hamano2-1/+13
Older versions of Git before v1.7.10 did not DWIM $ git pull $URL for-linus to the tag "tags/for-linus" and the users were required to say $ git pull $URL tags/for-linus instead. Because newer versions of Git works either way, request-pull used to show tags/for-linus when asked $ git request-pull origin/master $URL for-linus The recent updates broke this and in the output we see "for-linus" without the "tags/" prefix. As v1.7.10 is more than 2 years old, this should matter very little in practice, but resurrecting it is very simple. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-13Merge branch 'fc/prompt-zsh-read-from-file'Libravatar Junio C Hamano1-8/+8
* fc/prompt-zsh-read-from-file: contrib: completion: fix 'eread()' namespace
2014-05-13contrib: completion: fix 'eread()' namespaceLibravatar Felipe Contreras1-8/+8
Otherwise it might collide with a function of the same name in the user's environment. Suggested-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-12Merge git://github.com/git-l10n/git-poLibravatar Junio C Hamano1-2278/+2755
* git://github.com/git-l10n/git-po: l10n: Updated Bulgarian translation of git (1307t0f921u)
2014-05-11l10n: Updated Bulgarian translation of git (1307t0f921u)Libravatar Alexander Shopov1-2278/+2755
Signed-off-by: Alexander Shopov <ash@kambanaria.org>
2014-05-09Git 2.0-rc3Libravatar Junio C Hamano1-1/+1
2014-05-09Sync with 1.9.3Libravatar Junio C Hamano1-1/+2
2014-05-09Git 1.9.3Libravatar Junio C Hamano2-2/+3
The third maintenance release for Git 1.9; contains all the fixes that are scheduled to appear in Git 2.0 since 1.9.2. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08Sync with maintLibravatar Junio C Hamano2-1/+22
* maint: shell doc: remove stray "+" in example Start preparing for 1.9.3
2014-05-08shell doc: remove stray "+" in exampleLibravatar Jonathan Nieder1-1/+1
The git-shell(1) manpage says EXAMPLE To disable interactive logins, displaying a greeting instead: + $ chsh -s /usr/bin/git-shell $ mkdir $HOME/git-shell-commands [...] The stray "+" has been there ever since the example was added in v1.8.3-rc0~210^2 (shell: new no-interactive-login command to print a custom message, 2013-03-09). The "+" sign between paragraphs is needed in asciidoc to attach extra paragraphs to a list item but here it is not needed and ends up rendered as a literal "+". Remove it. A quick search with "grep -e '<p>+' /usr/share/doc/git/html/*.html" doesn't find any other instances of this problem. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08Merge git://github.com/git-l10n/git-poLibravatar Junio C Hamano1-7/+7
* 'master' of git://github.com/git-l10n/git-po: l10n: Fix a couple of typos in the Swedish translation
2014-05-08Start preparing for 1.9.3Libravatar Junio C Hamano2-1/+22
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08Merge branch 'cl/p4-use-diff-tree' into maintLibravatar Junio C Hamano1-1/+1
"git p4" dealing with changes in binary files were broken by a change in 1.9 release. * cl/p4-use-diff-tree: git-p4: format-patch to diff-tree change breaks binary patches
2014-05-08Merge branch 'rh/prompt-pcmode-avoid-eval-on-refname' into maintLibravatar Junio C Hamano2-24/+54
The shell prompt script (in contrib/), when using the PROMPT_COMMAND interface, used an unsafe construct when showing the branch name in $PS1. * rh/prompt-pcmode-avoid-eval-on-refname: git-prompt.sh: don't put unsanitized branch names in $PS1