- 23 2月, 2016 5 次提交
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由 Jeff King 提交于
Each of these cases can be converted to use ALLOC_ARRAY or REALLOC_ARRAY, which has two advantages: 1. It automatically checks the array-size multiplication for overflow. 2. It always uses sizeof(*array) for the element-size, so that it can never go out of sync with the declared type of the array. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
There are many manual argv allocations that predate the argv_array API. Switching to that API brings a few advantages: 1. We no longer have to manually compute the correct final array size (so it's one less thing we can screw up). 2. In many cases we had to make a separate pass to count, then allocate, then fill in the array. Now we can do it in one pass, making the code shorter and easier to follow. 3. argv_array handles memory ownership for us, making it more obvious when things should be free()d and and when not. Most of these cases are pretty straightforward. In some, we switch from "run_command_v" to "run_command" which lets us directly use the argv_array embedded in "struct child_process". Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
The usual pattern for an argv array is to initialize it, push in some strings, and then clear it when done. Very occasionally, though, we must do other exotic things with the memory, like freeing the list but keeping the strings. Let's provide a detach function so that callers can make use of our API to build up the array, and then take ownership of it. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
Allocating a struct with a flex array is pretty simple in practice: you over-allocate the struct, then copy some data into the over-allocation. But it can be a slight pain to make sure you're allocating and copying the right amounts. This patch adds a few helpers to turn simple cases of flex-array struct allocation into a one-liner that properly checks for overflow. See the embedded documentation for details. Ideally we could provide a more flexible version that could handle multiple strings, like: FLEX_ALLOC_FMT(ref, name, "%s%s", prefix, name); But we have to implement this as a macro (because of the offset calculation of the flex member), which means we would need all compilers to support variadic macros. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
REALLOC_ARRAY inherently involves a multiplication which can overflow size_t, resulting in a much smaller buffer than we think we've allocated. We can easily harden it by using st_mult() to check for overflow. Likewise, we can add ALLOC_ARRAY to do the same thing for xmalloc calls. xcalloc() should already be fine, because it takes the two factors separately, assuming the system calloc actually checks for overflow. However, before we even hit the system calloc(), we do our memory_limit_check, which involves a multiplication. Let's check for overflow ourselves so that this limit cannot be bypassed. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 20 2月, 2016 3 次提交
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由 Jeff King 提交于
A combine_diff_path struct has two "flex" members allocated alongside the struct: a string to hold the pathname, and an array of parent pointers. We use an "int" to compute this, meaning we may easily overflow it if the pathname is extremely long. We can fix this by using size_t, and checking for overflow with the st_add helper. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
Performing computations on size_t variables that we feed to xmalloc and friends can be dangerous, as an integer overflow can cause us to allocate a much smaller chunk than we realized. We already have unsigned_add_overflows(), but let's add unsigned_mult_overflows() to that. Furthermore, rather than have each site manually check and die on overflow, we can provide some helpers that will: - promote the arguments to size_t, so that we know we are doing our computation in the same size of integer that will ultimately be fed to xmalloc - check and die on overflow - return the result so that computations can be done in the parameter list of xmalloc. These functions are a lot uglier to use than normal arithmetic operators (you have to do "st_add(foo, bar)" instead of "foo + bar"). To at least limit the damage, we also provide multi-valued versions. So rather than: st_add(st_add(a, b), st_add(c, d)); you can write: st_add4(a, b, c, d); This isn't nearly as elegant as a varargs function, but it's a lot harder to get it wrong. You don't have to remember to add a sentinel value at the end, and the compiler will complain if you get the number of arguments wrong. This patch adds only the numbered variants required to convert the current code base; we can easily add more later if needed. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
You can tweak the reflog expiration for a particular subset of refs by configuring gc.foo.reflogexpire. We keep a linked list of reflog_expire_cfg structs, each of which holds the pattern and a "len" field for the length of the pattern. The pattern itself is _not_ NUL-terminated. However, we feed the pattern directly to wildmatch(), which expects a NUL-terminated string, meaning it may keep reading random junk after our struct. We can fix this by allocating an extra byte for the NUL (which is already zero because we use xcalloc). Let's also drop the misleading "len" field, which is no longer necessary. The existing use of "len" can be converted to use strncmp(). Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 06 2月, 2016 29 次提交
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由 Junio C Hamano 提交于
Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Junio C Hamano 提交于
* lv/add-doc-working-tree: git-add doc: do not say working directory when you mean working tree
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由 Junio C Hamano 提交于
Documentation for "git fetch --depth" has been updated for clarity. * ss/clone-depth-single-doc: docs: clarify that --depth for git-fetch works with newly initialized repos docs: say "commits" in the --depth option wording for git-clone docs: clarify that passing --depth to git-clone implies --single-branch
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由 Junio C Hamano 提交于
* sg/t6050-failing-editor-test-fix: t6050-replace: make failing editor test more robust
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由 Junio C Hamano 提交于
* ew/for-each-ref-doc: for-each-ref: document `creatordate` and `creator` fields
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由 Junio C Hamano 提交于
Drop a few old "todo" items by deciding that the change one of them suggests is not such a good idea, and doing the change the other one suggested to do. * ss/user-manual: user-manual: add addition gitweb information user-manual: add section documenting shallow clones glossary: define the term shallow clone user-manual: remove temporary branch entry from todo list
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由 Junio C Hamano 提交于
The underlying machinery used by "ls-files -o" and other commands have been taught not to create empty submodule ref cache for a directory that is not a submodule. This removes a ton of wasted CPU cycles. * jk/ref-cache-non-repository-optim: resolve_gitlink_ref: ignore non-repository paths clean: make is_git_repository a public function
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由 Junio C Hamano 提交于
dirname() emulation has been added, as Msys2 lacks it. * js/dirname-basename: mingw: avoid linking to the C library's isalpha() t0060: loosen overly strict expectations t0060: verify that basename() and dirname() work as expected compat/basename.c: provide a dirname() compatibility function compat/basename: make basename() conform to POSIX Refactor skipping DOS drive prefixes
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由 Junio C Hamano 提交于
* tb/complete-word-diff-regex: completion: complete "diff --word-diff-regex="
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由 Junio C Hamano 提交于
* pw/completion-stash: completion: update completion arguments for stash
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由 Junio C Hamano 提交于
* pw/completion-show-branch: completion: complete show-branch "--date-order"
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由 Junio C Hamano 提交于
* jk/completion-rebase: completion: add missing git-rebase options
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由 Junio C Hamano 提交于
A few options of "git diff" did not work well when the command was run from a subdirectory. * nd/diff-with-path-params: diff: make -O and --output work in subdirectory diff-no-index: do not take a redundant prefix argument
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由 Junio C Hamano 提交于
The "split" subcommand of "git subtree" (in contrib/) incorrectly skipped merges when it shouldn't, which was corrected. * dw/subtree-split-do-not-drop-merge: contrib/subtree: fix "subtree split" skipped-merge bug
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由 Junio C Hamano 提交于
* ew/svn-1.9.0-auth: git-svn: fix auth parameter handling on SVN 1.9.0+
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由 Junio C Hamano 提交于
"git tag" started listing a tag "foo" as "tags/foo" when a branch named "foo" exists in the same repository; remove this unnecessary disambiguation, which is a regression introduced in v2.7.0. * jk/list-tag-2.7-regression: tag: do not show ambiguous tag names as "tags/foo" t6300: use test_atom for some un-modern tests
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由 Junio C Hamano 提交于
The description for SANITY prerequisite the test suite uses has been clarified both in the comment and in the implementation. * jk/sanity: test-lib: clarify and tighten SANITY
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由 Junio C Hamano 提交于
A recent optimization to filter-branch in v2.7.0 introduced a regression when --prune-empty filter is used, which has been corrected. * jk/filter-branch-no-index: filter-branch: resolve $commit^{tree} in no-index case
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由 Junio C Hamano 提交于
Many codepaths that run "gc --auto" before exiting kept packfiles mapped and left the file descriptors to them open, which was not friendly to systems that cannot remove files that are open. They now close the packs before doing so. * js/close-packs-before-gc: receive-pack: release pack files before garbage-collecting merge: release pack files before garbage-collecting am: release pack files before garbage-collecting fetch: release pack files before garbage-collecting
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由 Junio C Hamano 提交于
"git rebase", unlike all other callers of "gc --auto", did not ignore the exit code from "gc --auto". * jk/ok-to-fail-gc-auto-in-rebase: rebase: ignore failures from "gc --auto"
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由 Junio C Hamano 提交于
Asking gitweb for a nonexistent commit left a warning in the server log. Somebody may want to follow this up with a new test, perhaps? IIRC, we do test that no Perl warnings are given to the server log, so this should have been caught if our test coverage were good. * ho/gitweb-squelch-undef-warning: gitweb: squelch "uninitialized value" warning
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由 Junio C Hamano 提交于
Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR (e.g. COMMIT_EDITMSG) that is meant to be left after the command is done. This however did not work well if the repository is set to be shared with core.sharedRepository and the umask of the previous user is tighter. They have been made to work better by calling unlink(2) and retrying after fopen(3) fails with EPERM. * js/fopen-harder: Handle more file writes correctly in shared repos commit: allow editing the commit message even in shared repos
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由 Junio C Hamano 提交于
The ignore mechanism saw a few regressions around untracked file listing and sparse checkout selection areas in 2.7.0; the change that is responsible for the regression has been reverted. * nd/exclusion-regression-fix: Revert "dir.c: don't exclude whole dir prematurely if neg pattern may match"
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由 Junio C Hamano 提交于
"git reflog" incorrectly assumed that all objects that used to be at the tip of a ref must be commits, which caused it to segfault. * dk/reflog-walk-with-non-commit: reflog-walk: don't segfault on non-commit sha1's in the reflog
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由 Junio C Hamano 提交于
The documentation has been updated to hint the connection between the '--signoff' option and DCO. * dw/signoff-doc: Expand documentation describing --signoff
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由 Junio C Hamano 提交于
A few unportable C construct have been spotted by clang compiler and have been fixed. * jk/clang-pedantic: bswap: add NO_UNALIGNED_LOADS define avoid shifting signed integers 31 bits
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由 Junio C Hamano 提交于
"git send-email" was confused by escaped quotes stored in the alias files saved by "mutt", which has been corrected. * ew/send-email-mutt-alias-fix: git-send-email: do not double-escape quotes from mutt
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由 Junio C Hamano 提交于
The "exclude_list" structure has the usual "alloc, nr" pair of fields to be used by ALLOC_GROW(), but clear_exclude_list() forgot to reset 'alloc' to 0 when it cleared 'nr' to discard the managed array. * nd/dir-exclude-cleanup: dir.c: clean the entire struct in clear_exclude_list()
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由 Junio C Hamano 提交于
An earlier change in 2.5.x-era broke users' hooks and aliases by exporting GIT_WORK_TREE to point at the root of the working tree, interfering when they tried to use a different working tree without setting GIT_WORK_TREE environment themselves. * nd/stop-setenv-work-tree: Revert "setup: set env $GIT_WORK_TREE when work tree is set, like $GIT_DIR"
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- 27 1月, 2016 3 次提交
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由 Eric Wong 提交于
For users with "store-passwords = no" set in the "[auth]" section of their ~/.subversion/config, SVN 1.9.0+ would fail with the following message when attempting to call svn_auth_set_parameter: Value is not a string (or undef) at Git/SVN/Ra.pm Ironically, this breakage was caused by r1553823 in subversion: "Make svn_auth_set_parameter() usable from Perl bindings." Since 2007 (602015e0), git-svn has used a workaround to make svn_auth_set_parameter usable internally. However this workaround breaks under SVN 1.9+, which deals properly with the type mapping and fails to recognize our workaround. For pre-1.9.0 SVN, we continue to use the existing workaround for the lack of proper type mapping in the bindings. Tested under subversion 1.6.17 and 1.9.3. I've also verified r1553823 was not backported to SVN 1.8.x: BRANCH=http://svn.apache.org/repos/asf/subversion/branches/1.8.x svn log -v $BRANCH/subversion/bindings/swig/core.i ref: https://bugs.debian.org/797705 Cc: 797705@bugs.debian.org Reported-by: NThierry Vignaud <thierry.vignaud@gmail.com> Signed-off-by: NEric Wong <normalperson@yhbt.net> Tested-by: NThierry Vignaud <thierry.vignaud@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
Since b7cc53e9 (tag.c: use 'ref-filter' APIs, 2015-07-11), git-tag has started showing tags with ambiguous names (i.e., when both "heads/foo" and "tags/foo" exists) as "tags/foo" instead of just "foo". This is both: - pointless; the output of "git tag" includes only refs/tags, so we know that "foo" means the one in "refs/tags". and - ambiguous; in the original output, we know that the line "foo" means that "refs/tags/foo" exists. In the new output, it is unclear whether we mean "refs/tags/foo" or "refs/tags/tags/foo". The reason this happens is that commit b7cc53e9 switched git-tag to use ref-filter's "%(refname:short)" output formatting, which was adapted from for-each-ref. This more general code does not know that we care only about tags, and uses shorten_unambiguous_ref to get the short-name. We need to tell it that we care only about "refs/tags/", and it should shorten with respect to that value. In theory, the ref-filter code could figure this out by us passing FILTER_REFS_TAGS. But there are two complications there: 1. The handling of refname:short is deep in formatting code that does not even have our ref_filter struct, let alone the arguments to the filter_ref struct. 2. In git v2.7.0, we expose the formatting language to the user. If we follow this path, it will mean that "%(refname:short)" behaves differently for "tag" versus "for-each-ref" (including "for-each-ref refs/tags/"), which can lead to confusion. Instead, let's add a new modifier to the formatting language, "strip", to remove a specific set of prefix components. This fixes "git tag", and lets users invoke the same behavior from their own custom formats (for "tag" or "for-each-ref") while leaving ":short" with its same consistent meaning in all places. We introduce a test in t7004 for "git tag", which fails without this patch. We also add a similar test in t3203 for "git branch", which does not actually fail. But since it is likely that "branch" will eventually use the same formatting code, the test helps defend against future regressions. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Paul Wagland 提交于
Add --all and --include-untracked to the git stash save completions. Add --quiet to the git stash drop completions. Update git stash branch so that the first argument expands out to the possible branch names, and the other arguments expand to the stash names. Signed-off-by: NPaul Wagland <paul@kungfoocoder.org> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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