1Git 2.16 Release Notes 2====================== 3 4Backward compatibility notes and other notable changes. 5 6 * Use of an empty string as a pathspec element that is used for 7 'everything matches' is now an error. 8 9 10Updates since v2.15 11------------------- 12 13UI, Workflows & Features 14 15 * An empty string as a pathspec element that means "everything" 16 i.e. 'git add ""', is now illegal. We started this by first 17 deprecating and warning a pathspec that has such an element in 18 2.11 (Nov 2016). 19 20 * A hook script that is set unexecutable is simply ignored. Git 21 notifies when such a file is ignored, unless the message is 22 squelched via advice.ignoredHook configuration. 23 24 * "git pull" has been taught to accept "--[no-]signoff" option and 25 pass it down to "git merge". 26 27 * The "--push-option=<string>" option to "git push" now defaults to a 28 list of strings configured via push.pushOption variable. 29 30 * "gitweb" checks if a directory is searchable with Perl's "-x" 31 operator, which can be enhanced by using "filetest 'access'" 32 pragma, which now we do. 33 34 * "git stash save" has been deprecated in favour of "git stash push". 35 36 * The set of paths output from "git status --ignored" was tied 37 closely with its "--untracked=<mode>" option, but now it can be 38 controlled more flexibly. Most notably, a directory that is 39 ignored because it is listed to be ignored in the ignore/exclude 40 mechanism can be handled differently from a directory that ends up 41 to be ignored only because all files in it are ignored. 42 43 * The remote-helper for talking to MediaWiki has been updated to 44 truncate an overlong pagename so that ".mw" suffix can still be 45 added. 46 47 * The remote-helper for talking to MediaWiki has been updated to 48 work with mediawiki namespaces. 49 50 * The "--format=..." option "git for-each-ref" takes learned to show 51 the name of the 'remote' repository and the ref at the remote side 52 that is affected for 'upstream' and 'push' via "%(push:remotename)" 53 and friends. 54 55 * Doc and message updates to teach users "bisect view" is a synonym 56 for "bisect visualize". 57 58 * "git bisect run" that did not specify any command to run used to go 59 ahead and treated all commits to be tested as 'good'. This has 60 been corrected by making the command error out. 61 62 * The SubmittingPatches document has been converted to produce an 63 HTML version via AsciiDoc/Asciidoctor. 64 (merge 049e64aa50 bc/submitting-patches-in-asciidoc later to maint). 65 66 * We learned to talk to watchman to speed up "git status" and other 67 operations that need to see which paths have been modified. 68 69 * The "diff" family of commands learned to ignore differences in 70 carriage return at the end of line. 71 72 * Places that know about "sendemail.to", like documentation and shell 73 completion (in contrib/) have been taught about "sendemail.tocmd", 74 too. 75 76 * "git add --renormalize ." is a new and safer way to record the fact 77 that you are correcting the end-of-line convention and other 78 "convert_to_git()" glitches in the in-repository data. 79 80 81Performance, Internal Implementation, Development Support etc. 82 83 * An earlier update made it possible to use an on-stack in-core 84 lockfile structure (as opposed to having to deliberately leak an 85 on-heap one). Many codepaths have been updated to take advantage 86 of this new facility. 87 88 * Calling cmd_foo() as if it is a general purpose helper function is 89 a no-no. Correct two instances of such to set an example. 90 91 * We try to see if somebody runs our test suite with a shell that 92 does not support "local" like bash/dash does. 93 94 * An early part of piece-by-piece rewrite of "git bisect" in C. 95 96 * GSoC to piece-by-piece rewrite "git submodule" in C. 97 98 * Optimize the code to find shortest unique prefix of object names. 99 100 * Pathspec-limited revision traversal was taught not to keep finding 101 unneeded differences once it knows two trees are different inside 102 given pathspec. 103 104 * Conversion from uchar[20] to struct object_id continues. 105 106 * Code cleanup. 107 108 * A single-word "unsigned flags" in the diff options is being split 109 into a structure with many bitfields. 110 111 * TravisCI build updates. 112 113 * Parts of a test to drive the long-running content filter interface 114 has been split into its own module, hopefully to eventually become 115 reusable. 116 117 * Drop (perhaps overly cautious) sanity check before using the index 118 read from the filesystem at runtime. 119 120Also contains various documentation updates and code clean-ups. 121 122 123Fixes since v2.15 124----------------- 125 126 * "auto" as a value for the columnar output configuration ought to 127 judge "is the output consumed by humans?" with the same criteria as 128 "auto" for coloured output configuration, i.e. either the standard 129 output stream is going to tty, or a pager is in use. We forgot the 130 latter, which has been fixed. 131 132 * The experimental "color moved lines differently in diff output" 133 feature was buggy around "ignore whitespace changes" edges, which 134 has been corrected. 135 136 * Instead of using custom line comparison and hashing functions to 137 implement "moved lines" coloring in the diff output, use the pair 138 of these functions from lower-layer xdiff/ code. 139 140 * Some codepaths did not check for errors when asking what branch the 141 HEAD points at, which have been fixed. 142 143 * "git commit", after making a commit, did not check for errors when 144 asking on what branch it made the commit, which has been corrected. 145 146 * "git status --ignored -u" did not stop at a working tree of a 147 separate project that is embedded in an ignored directory and 148 listed files in that other project, instead of just showing the 149 directory itself as ignored. 150 151 * A broken access to object databases in recent update to "git grep 152 --recurse-submodules" has been fixed. 153 154 * A recent regression in "git rebase -i" that broke execution of git 155 commands from subdirectories via "exec" instruction has been fixed. 156 157 * A (possibly flakey) test fix. 158 159 * "git check-ref-format --branch @{-1}" bit a "BUG()" when run 160 outside a repository for obvious reasons; clarify the documentation 161 and make sure we do not even try to expand the at-mark magic in 162 such a case, but still call the validation logic for branch names. 163 164 * "git fetch --recurse-submodules" now knows that submodules can be 165 moved around in the superproject in addition to getting updated, 166 and finds the ones that need to be fetched accordingly. 167 168 * Command line completion (in contrib/) update. 169 170 * Description of blame.{showroot,blankboundary,showemail,date} 171 configuration variables have been added to "git config --help". 172 173 * After an error from lstat(), diff_populate_filespec() function 174 sometimes still went ahead and used invalid data in struct stat, 175 which has been fixed. 176 177 * UNC paths are also relevant in Cygwin builds and they are now 178 tested just like Mingw builds. 179 180 * Correct start-up sequence so that a repository could be placed 181 immediately under the root directory again (which was broken at 182 around Git 2.13). 183 184 * The credential helper for libsecret (in contrib/) has been improved 185 to allow possibly prompting the end user to unlock secrets that are 186 currently locked (otherwise the secrets may not be loaded). 187 188 * MinGW updates. 189 190 * Error checking in "git imap-send" for empty response has been 191 improved. 192 193 * Recent update to the refs infrastructure implementation started 194 rewriting packed-refs file more often than before; this has been 195 optimized again for most trivial cases. 196 (merge 7c6bd25c7d mh/avoid-rewriting-packed-refs later to maint). 197 198 * Some error messages did not quote filenames shown in it, which have 199 been fixed. 200 201 * "git rebase -i" recently started misbehaving when a submodule that 202 is configured with 'submodule.<name>.ignore' is dirty; this has 203 been corrected. 204 205 * Building with NO_LIBPCRE1_JIT did not disable it, which has been fixed. 206 207 * We used to add an empty alternate object database to the system 208 that does not help anything; it has been corrected. 209 210 * Doc update around use of "format-patch --subject-prefix" etc. 211 212 * A fix for an ancient bug in "git apply --ignore-space-change" codepath. 213 214 * Clarify and enhance documentation for "merge-base --fork-point", as 215 it was clear what it computed but not why/what for. 216 (merge 6d1700b8af jc/merge-base-fork-point-doc later to maint). 217 218 * A few scripts (both in production and tests) incorrectly redirected 219 their error output. These have been corrected. 220 (merge eadf1c8f45 tz/redirect-fix later to maint). 221 222 * "git notes" sent its error message to its standard output stream, 223 which was corrected. 224 (merge 89b9e31dd5 tz/notes-error-to-stderr later to maint). 225 226 * The three-way merge performed by "git cherry-pick" was confused 227 when a new submodule was added in the meantime, which has been 228 fixed (or "papered over"). 229 (merge c641ca6707 sb/test-cherry-pick-submodule-getting-in-a-way later to maint). 230 231 * The sequencer machinery (used by "git cherry-pick A..B", and "git 232 rebase -i", among other things) would have lost a commit if stopped 233 due to an unlockable index file, which has been fixed. 234 (merge bd58886775 pw/sequencer-recover-from-unlockable-index later to maint). 235 236 * "git apply --inaccurate-eof" when used with "--ignore-space-change" 237 triggered an internal sanity check, which has been fixed. 238 (merge 4855de1233 rs/apply-inaccurate-eof-with-incomplete-line later to maint). 239 240 * Command line completion (in contrib/) has been taught about the 241 "--copy" option of "git branch". 242 (merge 41ca0f773e tz/complete-branch-copy later to maint). 243 244 * When "git rebase" prepared an mailbox of changes and fed it to "git 245 am" to replay them, it was confused when a stray "From " happened 246 to be in the log message of one of the replayed changes. This has 247 been corrected. 248 (merge ae3b2b04bb ew/rebase-mboxrd later to maint). 249 250 * There was a recent semantic mismerge in the codepath to write out a 251 section of a configuration section, which has been corrected. 252 (merge 782c030ea2 rs/config-write-section-fix later to maint). 253 254 * Mentions of "git-rebase" and "git-am" (dashed form) still remained 255 in end-user visible strings emitted by the "git rebase" command; 256 they have been corrected. 257 (merge 82cb775c06 ks/rebase-no-git-foo later to maint). 258 259 * Contrary to the documentation, "git pull -4/-6 other-args" did not 260 ask the underlying "git fetch" to go over IPv4/IPv6, which has been 261 corrected. 262 (merge ffb4568afe sw/pull-ipv46-passthru later to maint). 263 264 * Other minor doc, test and build updates and code cleanups. 265 (merge c5e3bc6ec4 sd/branch-copy later to maint).