1Git 2.22 Release Notes 2====================== 3 4Updates since v2.21 5------------------- 6 7UI, Workflows & Features 8 9 * "git checkout --no-overlay" can be used to trigger a new mode of 10 checking out paths out of the tree-ish, that allows paths that 11 match the pathspec that are in the current index and working tree 12 and are not in the tree-ish. 13 14 * The %(trailers) formatter in "git log --format=..." now allows to 15 optionally pick trailers selectively by keyword, show only values, 16 etc. 17 18 * Four new configuration variables {author,committer}.{name,email} 19 have been introduced to override user.{name,email} in more specific 20 cases. 21 22 * Command-line completion (in contrib/) learned to tab-complete the 23 "git submodule absorbgitdirs" subcommand. 24 25 * "git branch" learned a new subcommand "--show-current". 26 27 * Output from "diff --cc" did not show the original paths when the 28 merge involved renames. A new option adds the paths in the 29 original trees to the output. 30 31 * The command line completion (in contrib/) has been taught to 32 complete more subcommand parameters. 33 34 * The final report from "git bisect" used to show the suspected 35 culprit using a raw "diff-tree", with which there is no output for 36 a merge commit. This has been updated to use a more modern and 37 human readable output that still is concise enough. 38 39 40Performance, Internal Implementation, Development Support etc. 41 42 * The diff machinery, one of the oldest parts of the system, which 43 long predates the parse-options API, uses fairly long and complex 44 handcrafted option parser. This is being rewritten to use the 45 parse-options API. 46 47 * The implementation of pack-redundant has been updated for 48 performance in a repository with many packfiles. 49 50 * A more structured way to obtain execution trace has been added. 51 52 * "git prune" has been taught to take advantage of reachability 53 bitmap when able. 54 55 * The command line parser of "git commit-tree" has been rewritten to 56 use the parse-options API. 57 58 59Fixes since v2.21 60----------------- 61 62 * "git prune-packed" did not notice and complain against excess 63 arguments given from the command line, which now it does. 64 (merge 9b0bd87ed2 rj/prune-packed-excess-args later to maint). 65 66 * Split-index fix. 67 (merge 6e37c8ed3c nd/split-index-null-base-fix later to maint). 68 69 * "git diff --no-index" may still want to access Git goodies like 70 --ext-diff and --textconv, but so far these have been ignored, 71 which has been corrected. 72 (merge 287ab28bfa jk/diff-no-index-initialize later to maint). 73 74 * Unify RPC code for smart http in protocol v0/v1 and v2, which fixes 75 a bug in the latter (lack of authentication retry) and generally 76 improves the code base. 77 (merge a97d00799a jt/http-auth-proto-v2-fix later to maint). 78 79 * The include file compat/bswap.h has been updated so that it is safe 80 to (accidentally) include it more than once. 81 (merge 33aa579a55 jk/guard-bswap-header later to maint). 82 83 * The set of header files used by "make hdr-check" unconditionally 84 included sha256/gcrypt.h, even when it is not used, causing the 85 make target to fail. We now skip it when GCRYPT_SHA256 is not in 86 use. 87 (merge f23aa18e7f rj/hdr-check-gcrypt-fix later to maint). 88 89 * The Makefile uses 'find' utility to enumerate all the *.h header 90 files, which is expensive on platforms with slow filesystems; it 91 now optionally uses "ls-files" if working within a repository, 92 which is a trick similar to how all sources are enumerated to run 93 ETAGS on. 94 (merge 92b88eba9f js/find-lib-h-with-ls-files-when-possible later to maint). 95 96 * "git rebase" that was reimplemented in C did not set ORIG_HEAD 97 correctly, which has been corrected. 98 (merge cbd29ead92 js/rebase-orig-head-fix later to maint). 99 100 * Dev support. 101 (merge f545737144 js/stress-test-ui-tweak later to maint). 102 103 * CFLAGS now can be tweaked when invoking Make while using 104 DEVELOPER=YesPlease; this did not work well before. 105 (merge 6d5d4b4e93 ab/makefile-help-devs-more later to maint). 106 107 * "git fsck --connectivity-only" omits computation necessary to sift 108 the objects that are not reachable from any of the refs into 109 unreachable and dangling. This is now enabled when dangling 110 objects are requested (which is done by default, but can be 111 overridden with the "--no-dangling" option). 112 (merge 8d8c2a5aef jk/fsck-doc later to maint). 113 114 * On platforms where "git fetch" is killed with SIGPIPE (e.g. OSX), 115 the upload-pack that runs on the other end that hangs up after 116 detecting an error could cause "git fetch" to die with a signal, 117 which led to a flakey test. "git fetch" now ignores SIGPIPE during 118 the network portion of its operation (this is not a problem as we 119 check the return status from our write(2)s). 120 (merge 143588949c jk/no-sigpipe-during-network-transport later to maint). 121 122 * A recent update broke "is this object available to us?" check for 123 well-known objects like an empty tree (which should yield "yes", 124 even when there is no on-disk object for an empty tree), which has 125 been corrected. 126 (merge f06ab027ef jk/virtual-objects-do-exist later to maint). 127 128 * The setup code has been cleaned up to avoid leaks around the 129 repository_format structure. 130 (merge e8805af1c3 ma/clear-repository-format later to maint). 131 132 * "git config --type=color ..." is meant to replace "git config --get-color" 133 but there is a slight difference that wasn't documented, which is 134 now fixed. 135 (merge cd8e7593b9 jk/config-type-color-ends-with-lf later to maint). 136 137 * Code cleanup, docfix, build fix, etc. 138 (merge 11f470aee7 jc/test-yes-doc later to maint). 139 (merge 90503a240b js/doc-symref-in-proto-v1 later to maint). 140 (merge 5c326d1252 jk/unused-params later to maint). 141 (merge 68cabbfda3 dl/doc-submodule-wo-subcommand later to maint). 142 (merge 9903623761 ab/receive-pack-use-after-free-fix later to maint). 143 (merge 1ede45e44b en/merge-options-doc later to maint). 144 (merge 3e14dd2c8e rd/doc-hook-used-in-sample later to maint). 145 (merge c271dc28fd nd/no-more-check-racy later to maint). 146 (merge e6e15194a8 yb/utf-16le-bom-spellfix later to maint). 147 (merge bb101aaf0c rd/attr.c-comment-typofix later to maint). 148 (merge 716a5af812 rd/gc-prune-doc-fix later to maint). 149 (merge 50b206371d js/untravis-windows later to maint). 150 (merge dbf47215e3 js/rebase-recreate-merge later to maint).