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a2082dbd JH |
1 | Git v2.45 Release Notes |
2 | ======================= | |
3 | ||
4 | Backward Compatibility Notes | |
5 | ||
6 | UI, Workflows & Features | |
7 | ||
8 | * Integrate the reftable code into the refs framework as a backend. | |
9 | With "git init --ref-format=reftable", hopefully it would be a lot | |
10 | more efficient to manage a repository with many references. | |
11 | ||
12 | * "git checkout -p" and friends learned that that "@" is a synonym | |
13 | for "HEAD". | |
14 | ||
0f9d4d28 JH |
15 | * Variants of vimdiff learned to honor mergetool.<variant>.layout |
16 | settings. | |
17 | ||
b387623c JH |
18 | * "git reflog" learned a "list" subcommand that enumerates known reflogs. |
19 | ||
43072b4c JH |
20 | * When a merge conflicted at a submodule, merge-ort backend used to |
21 | unconditionally give a lengthy message to suggest how to resolve | |
22 | it. Now the message can be squelched as an advice message. | |
23 | ||
24 | * "git for-each-ref" learned "--include-root-refs" option to show | |
25 | even the stuff outside the 'refs/' hierarchy. | |
26 | ||
e09f1254 JH |
27 | * "git rev-list --missing=print" has learned to optionally take |
28 | "--allow-missing-tips", which allows the objects at the starting | |
29 | points to be missing. | |
30 | ||
31 | * "git merge-tree" has learned that the three trees involved in the | |
32 | 3-way merge only need to be trees, not necessarily commits. | |
33 | ||
34 | * "git log --merge" learned to pay attention to CHERRY_PICK_HEAD and | |
35 | other kinds of *_HEAD pseudorefs. | |
36 | ||
2953d95d JH |
37 | * Platform specific tweaks for OS/390 has been added to |
38 | config.mak.uname. | |
39 | ||
11c821f2 JH |
40 | * Users with safe.bareRepository=explicit can still work from within |
41 | $GIT_DIR of a seconary worktree (which resides at .git/worktrees/$name/) | |
42 | of the primary worktree without explicitly specifying the $GIT_DIR | |
43 | environment variable or the --git-dir=<path> option. | |
44 | ||
45 | * The output format for dates "iso-strict" has been tweaked to show | |
46 | a time in the Zulu timezone with "Z" suffix, instead of "+00:00". | |
47 | ||
d6fd0437 JH |
48 | * "git diff" and friends learned two extra configuration variables, |
49 | diff.srcPrefix and diff.dstPrefix. | |
50 | ||
51 | * The status.showUntrackedFiles configuration variable had a name | |
52 | that tempts users to set a Boolean value expressed in our usual | |
53 | "false", "off", and "0", but it only took "no". This has been | |
54 | corrected so "true" and its synonyms are taken as "normal", while | |
55 | "false" and its synonyms are taken as "no". | |
56 | ||
57 | * Remove an ancient and not well maintained Hg-to-git migration | |
58 | script from contrib/. | |
59 | ||
c2cbfbd2 JH |
60 | * Hints that suggest what to do after resolving conflicts can now be |
61 | squelched by disabling advice.mergeConflict. | |
62 | ||
7774cfed JH |
63 | * Allow git-cherry-pick(1) to automatically drop redundant commits via |
64 | a new `--empty` option, similar to the `--empty` options for | |
65 | git-rebase(1) and git-am(1). Includes a soft deprecation of | |
66 | `--keep-redundant-commits` as well as some related docs changes and | |
67 | sequencer code cleanup. | |
68 | ||
19981dae JH |
69 | * "git config" learned "--comment=<message>" option to leave a |
70 | comment immediately after the "variable = value" on the same line | |
71 | in the configuration file. | |
72 | ||
73 | * core.commentChar used to be limited to a single byte, but has been | |
74 | updated to allow an arbitrary multi-byte sequence. | |
75 | ||
a2082dbd JH |
76 | |
77 | Performance, Internal Implementation, Development Support etc. | |
78 | ||
79 | * The code to iterate over refs with the reftable backend has seen | |
80 | some optimization. | |
81 | ||
82 | * More tests that are marked as "ref-files only" have been updated to | |
83 | improve test coverage of reftable backend. | |
84 | ||
0f9d4d28 JH |
85 | * Some parts of command line completion script (in contrib/) have |
86 | been micro-optimized. | |
87 | ||
b387623c JH |
88 | * The way placeholders are to be marked-up in documentation have been |
89 | specified; use "_<placeholder>_" to typeset the word inside a pair | |
90 | of <angle-brakets> emphasized. | |
91 | ||
e09f1254 JH |
92 | * "git --no-lazy-fetch cmd" allows to run "cmd" while disabling lazy |
93 | fetching of objects from the promisor remote, which may be handy | |
94 | for debugging. | |
95 | ||
4f9b731b JH |
96 | * The implementation in "git clean" that makes "-n" and "-i" ignore |
97 | clean.requireForce has been simplified, together with the | |
98 | documentation. | |
99 | ||
100 | * The code to iterate over refs with the reftable backend has seen | |
101 | some optimization. | |
102 | ||
2953d95d JH |
103 | * Uses of xwrite() helper have been audited and updated for better |
104 | error checking and simpler code. | |
105 | ||
3bd955d2 JH |
106 | * Some trace2 events that lacked def_param have learned to show it, |
107 | enriching the output. | |
108 | ||
11c821f2 JH |
109 | * The parse-options code that deals with abbreviated long option |
110 | names have been cleaned up. | |
111 | ||
112 | * The code in reftable backend that creates new table files works | |
113 | better with the tempfile framework to avoid leaving cruft after a | |
114 | failure. | |
115 | ||
116 | * The reftable code has its own custom binary search function whose | |
117 | comparison callback has an unusual interface, which caused the | |
118 | binary search to degenerate into a linear search, which has been | |
119 | corrected. | |
120 | ||
121 | * The code to iterate over reflogs in the reftable has been optimized | |
122 | to reduce memory allocation and deallocation. | |
123 | ||
d6fd0437 JH |
124 | * Work to support a repository that work with both SHA-1 and SHA-256 |
125 | hash algorithms has started. | |
126 | ||
127 | * A new fuzz target that exercises config parsing code has been | |
128 | added. | |
129 | ||
c2cbfbd2 JH |
130 | * Fix the way recently added tests interpolate variables defined |
131 | outside them, and document the best practice to help future | |
132 | developers. | |
133 | ||
7774cfed JH |
134 | * Introduce an experimental protocol for contributors to propose the |
135 | topic description to be used in the "What's cooking" report, the | |
136 | merge commit message for the topic, and in the release notes and | |
137 | document it in the SubmittingPatches document. | |
138 | ||
139 | * The t/README file now gives a hint on running individual tests in | |
140 | the "t/" directory with "make t<num>-*.sh t<num>-*.sh". | |
141 | (merge 8d383806fc pb/test-scripts-are-build-targets later to maint). | |
142 | ||
a2082dbd JH |
143 | |
144 | Fixes since v2.44 | |
145 | ----------------- | |
146 | ||
147 | * "git apply" on a filesystem without filemode support have learned | |
148 | to take a hint from what is in the index for the path, even when | |
149 | not working with the "--index" or "--cached" option, when checking | |
150 | the executable bit match what is required by the preimage in the | |
151 | patch. | |
152 | (merge 45b625142d cp/apply-core-filemode later to maint). | |
153 | ||
154 | * "git column" has been taught to reject negative padding value, as | |
155 | it would lead to nonsense behaviour including division by zero. | |
156 | (merge 76fb807faa kh/column-reject-negative-padding later to maint). | |
157 | ||
0f9d4d28 JH |
158 | * "git am --help" now tells readers what actions are available in |
159 | "git am --whitespace=<action>", in addition to saying that the | |
160 | option is passed through to the underlying "git apply". | |
161 | (merge a171dac734 jc/am-whitespace-doc later to maint). | |
162 | ||
163 | * "git tag --column" failed to check the exit status of its "git | |
164 | column" invocation, which has been corrected. | |
165 | (merge 92e66478fc rj/tag-column-fix later to maint). | |
166 | ||
167 | * Credential helper based on libsecret (in contrib/) has been updated | |
168 | to handle an empty password correctly. | |
169 | (merge 8f1f2023b7 mh/libsecret-empty-password-fix later to maint). | |
170 | ||
b387623c JH |
171 | * "git difftool --dir-diff" learned to honor the "--trust-exit-code" |
172 | option; it used to always exit with 0 and signalled success. | |
173 | (merge eb84c8b6ce ps/difftool-dir-diff-exit-code later to maint). | |
174 | ||
43072b4c JH |
175 | * The code incorrectly attempted to use textconv cache when asked, |
176 | even when we are not running in a repository, which has been | |
177 | corrected. | |
178 | (merge affe355fe7 jk/textconv-cache-outside-repo-fix later to maint). | |
179 | ||
180 | * Remove an empty file that shouldn't have been added in the first | |
181 | place. | |
182 | (merge 4f66942215 js/remove-cruft-files later to maint). | |
183 | ||
184 | * The logic to access reflog entries by date and number had ugly | |
185 | corner cases at the boundaries, which have been cleaned up. | |
186 | (merge 5edd126720 jk/reflog-special-cases-fix later to maint). | |
187 | ||
188 | * An error message from "git upload-pack", which responds to "git | |
189 | fetch" requests, had a trialing NUL in it, which has been | |
190 | corrected. | |
191 | (merge 3f4c7a0805 sg/upload-pack-error-message-fix later to maint). | |
192 | ||
193 | * Clarify wording in the CodingGuidelines that requires <git-compat-util.h> | |
194 | to be the first header file. | |
195 | (merge 4e89f0e07c jc/doc-compat-util later to maint). | |
196 | ||
e09f1254 JH |
197 | * "git commit -v --cleanup=scissors" used to add the scissors line |
198 | twice in the log message buffer, which has been corrected. | |
199 | (merge e90cc075cc jt/commit-redundant-scissors-fix later to maint). | |
200 | ||
201 | * A custom remote helper no longer cannot access the newly created | |
202 | repository during "git clone", which is a regression in Git 2.44. | |
203 | This has been corrected. | |
204 | (merge 199f44cb2e ps/remote-helper-repo-initialization-fix later to maint). | |
205 | ||
206 | * Various parts of upload-pack has been updated to bound the resource | |
207 | consumption relative to the size of the repository to protect from | |
208 | abusive clients. | |
209 | (merge 6cd05e768b jk/upload-pack-bounded-resources later to maint). | |
210 | ||
211 | * The upload-pack program, when talking over v2, accepted the | |
212 | packfile-uris protocol extension from the client, even if it did | |
213 | not advertise the capability, which has been corrected. | |
214 | (merge a922bfa3b5 jk/upload-pack-v2-capability-cleanup later to maint). | |
215 | ||
94511502 JH |
216 | * Make sure failure return from merge_bases_many() is properly caught. |
217 | (merge 25fd20eb44 js/merge-base-with-missing-commit later to maint). | |
218 | ||
4f9b731b JH |
219 | * FSMonitor client code was confused when FSEvents were given in a |
220 | different case on a case-insensitive filesystem, which has been | |
221 | corrected. | |
222 | (merge 29c139ce78 jh/fsmonitor-icase-corner-case-fix later to maint). | |
223 | ||
224 | * The "core.commentChar" configuration variable only allows an ASCII | |
225 | character, which was not clearly documented, which has been | |
226 | corrected. | |
227 | (merge fb7c556f58 kh/doc-commentchar-is-a-byte later to maint). | |
228 | ||
229 | * With release 2.44 we got rid of all uses of test_i18ngrep and there | |
230 | is no in-flight topic that adds a new use of it. Make a call to | |
231 | test_i18ngrep a hard failure, so that we can remove it at the end | |
232 | of this release cycle. | |
233 | (merge 381a83dfa3 jc/test-i18ngrep later to maint). | |
234 | ||
235 | * The command line completion script (in contrib/) learned to | |
236 | complete "git reflog" better. | |
237 | (merge 1284f9cc11 rj/complete-reflog later to maint). | |
238 | ||
239 | * The logic to complete the command line arguments to "git worktree" | |
240 | subcommand (in contrib/) has been updated to correctly honor things | |
241 | like "git -C dir" etc. | |
242 | (merge 3574816d98 rj/complete-worktree-paths-fix later to maint). | |
243 | ||
2953d95d JH |
244 | * When git refuses to create a branch because the proposed branch |
245 | name is not a valid refname, an advice message is given to refer | |
246 | the user to exact naming rules. | |
247 | (merge 8fbd903e58 kh/branch-ref-syntax-advice later to maint). | |
248 | ||
3bd955d2 JH |
249 | * Code simplification by getting rid of code that sets an environment |
250 | variable that is no longer used. | |
251 | (merge 72a8d3f027 pw/rebase-i-ignore-cherry-pick-help-environment later to maint). | |
252 | ||
11c821f2 JH |
253 | * The code to find the effective end of log message can fall into an |
254 | endless loop, which has been corrected. | |
255 | (merge 2541cba2d6 fs/find-end-of-log-message-fix later to maint). | |
256 | ||
257 | * Mark-ups used in the documentation has been improved for | |
258 | consistency. | |
259 | (merge 45d5ed3e50 ja/doc-markup-fixes later to maint). | |
260 | ||
261 | * The status.showUntrackedFiles configuration variable was | |
262 | incorrectly documented to accept "false", which has been corrected. | |
263 | ||
c75fd8d8 JH |
264 | * Leaks from "git restore" have been plugged. |
265 | (merge 2f64da0790 rj/restore-plug-leaks later to maint). | |
266 | ||
267 | * "git bugreport --no-suffix" was not supported and instead | |
268 | segfaulted, which has been corrected. | |
269 | (merge b3b57c69da js/bugreport-no-suffix-fix later to maint). | |
270 | ||
271 | * The documentation for "%(trailers[:options])" placeholder in the | |
272 | "--pretty" option of commands in the "git log" family has been | |
273 | updated. | |
274 | (merge bff85a338c bl/doc-key-val-sep-fix later to maint). | |
275 | ||
c2cbfbd2 JH |
276 | * "git checkout --conflict=bad" reported a bad conflictStyle as if it |
277 | were given to a configuration variable; it has been corrected to | |
278 | report that the command line option is bad. | |
279 | (merge 5a99c1ac1a pw/checkout-conflict-errorfix later to maint). | |
280 | ||
281 | * Code clean-up in the "git log" machinery that implements custom log | |
282 | message formatting. | |
283 | (merge 1c10b8e5b0 jk/pretty-subject-cleanup later to maint). | |
284 | ||
285 | * "git config" corrupted literal HT characters written in the | |
286 | configuration file as part of a value, which has been corrected. | |
287 | (merge e6895c3f97 ds/config-internal-whitespace-fix later to maint). | |
288 | ||
289 | * A unit test for reftable code tried to enumerate all files in a | |
290 | directory after reftable operations and expected to see nothing but | |
291 | the files it wanted to leave there, but was fooled by .nfs* cruft | |
292 | files left, which has been corrected. | |
293 | (merge 0068aa7946 ps/reftable-unit-test-nfs-workaround later to maint). | |
294 | ||
7774cfed JH |
295 | * The implementation and documentation of "object-format" option |
296 | exchange between the Git itself and its remote helpers did not | |
297 | quite match, which has been corrected. | |
298 | ||
299 | * The "--pretty=<shortHand>" option of the commands in the "git log" | |
300 | family, defined as "[pretty] shortHand = <expansion>" should have | |
301 | been looked up case insensitively, but was not, which has been | |
302 | corrected. | |
303 | (merge f999d5188b bl/pretty-shorthand-config-fix later to maint). | |
304 | ||
a2082dbd JH |
305 | * Other code cleanup, docfix, build fix, etc. |
306 | (merge f0e578c69c rs/use-xstrncmpz later to maint). | |
0f9d4d28 JH |
307 | (merge 83e6eb7d7a ba/credential-test-clean-fix later to maint). |
308 | (merge 64562d784d jb/doc-interactive-singlekey-do-not-need-perl later to maint). | |
b387623c JH |
309 | (merge c431a235e2 cp/t9146-use-test-path-helpers later to maint). |
310 | (merge 82d75402d5 ds/doc-send-email-capitalization later to maint). | |
311 | (merge 41bff66e35 jc/doc-add-placeholder-fix later to maint). | |
312 | (merge 6835f0efe9 jw/remote-doc-typofix later to maint). | |
313 | (merge 244001aa20 hs/rebase-not-in-progress later to maint). | |
43072b4c JH |
314 | (merge 2ca6c07db2 jc/no-include-of-compat-util-from-headers later to maint). |
315 | (merge 87bd7fbb9c rs/fetch-simplify-with-starts-with later to maint). | |
316 | (merge f39addd0d9 rs/name-rev-with-mempool later to maint). | |
317 | (merge 9a97b43e03 rs/submodule-prefix-simplify later to maint). | |
318 | (merge 40b8076462 ak/rebase-autosquash later to maint). | |
e09f1254 | 319 | (merge 3223204456 eg/add-uflags later to maint). |
94511502 | 320 | (merge 5f78d52dce es/config-doc-sort-sections later to maint). |
2953d95d | 321 | (merge 781fb7b4c2 as/option-names-in-messages later to maint). |
3bd955d2 | 322 | (merge 51d41dc243 jk/doc-remote-helpers-markup-fix later to maint). |
11c821f2 | 323 | (merge e1aaf309db pb/ci-win-artifact-names-fix later to maint). |
c75fd8d8 JH |
324 | (merge ad538c61da jc/index-pack-fsck-levels later to maint). |
325 | (merge 67471bc704 ja/doc-formatting-fix later to maint). | |
326 | (merge 86f9ce7dd6 bl/doc-config-fixes later to maint). | |
7774cfed JH |
327 | (merge 0d527842b7 az/grep-group-error-message-update later to maint). |
328 | (merge 7c43bdf07b rs/strbuf-expand-bad-format later to maint). |