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Johannes Schindelin 9b6e2c8b98 pager: avoid setting COLUMNS when we're guessing its value
We query `TIOCGWINSZ` in Git to determine the correct value for
`COLUMNS`, and then set that environment variable.

If `TIOCGWINSZ` is not available, we fall back to the hard-coded value
80 _and still_ set the environment variable.

On Windows this is a problem. The reason is that Git for
Windows uses a version of `less` that relies on the MSYS2 runtime to
interact with the pseudo terminal (typically inside a MinTTY window,
which is also aware of the MSYS2 runtime). Both MinTTY and `less.exe`
interact with that pseudo terminal via `ioctl()` calls (which the MSYS2
runtime emulates even if there is no such thing on Windows).
Since https://github.com/gwsw/less/commit/bb0ee4e76c2, `less` prefers
the `COLUMNS` variable over asking ncurses itself.

But `git.exe` itself is _not_ aware of the MSYS2 runtime, or for that
matter of that pseudo terminal, and has no way to call `ioctl()` or
`TIOCGWINSZ`.

Therefore, `git.exe` will fall back to hard-coding 80 columns, no matter
what the actual terminal size is.

But `less.exe` is totally able to interact with the MSYS2 runtime and
would not actually require Git's help (which actually makes things
worse here). So let's not override `COLUMNS` on Windows.

Let's just not set `COLUMNS` unless we managed to query the actual value
from the terminal.

This fixes https://github.com/git-for-windows/git/issues/3235

Co-authored-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-28 10:42:10 -07:00
.github
Documentation Git 2.32-rc1 2021-05-22 18:29:01 +09:00
block-sha1
builtin Merge branch 'ab/fsck-api-cleanup' 2021-06-02 07:34:27 +09:00
ci Merge branch 'mt/parallel-checkout-part-3' 2021-05-16 21:05:23 +09:00
compat Merge branch 'jh/simple-ipc-sans-pthread' 2021-05-22 18:29:01 +09:00
contrib contrib/completion: fix zsh completion regression from 59d85a2a05 2021-06-02 12:49:40 +09:00
ewah
git-gui
gitk-git
gitweb
mergetools
negotiator
perl Merge branch 'ab/send-email-inline-hooks-path' 2021-05-27 12:36:57 +09:00
po l10n: es: 2.32.0 round 1 2021-06-05 20:06:23 -05:00
ppc
refs Merge branch 'wc/packed-ref-removal-cleanup' 2021-05-16 21:05:24 +09:00
sha1collisiondetection@855827c583
sha1dc
sha256
t Merge branch 'rs/parallel-checkout-test-fix' 2021-06-06 15:39:10 +09:00
templates
trace2
xdiff Merge branch 'pw/patience-diff-clean-up' 2021-05-14 08:26:08 +09:00
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore Merge branch 'ls/subtree' 2021-05-10 16:59:47 +09:00
.gitmodules
.mailmap
.travis.yml
.tsan-suppressions
CODE_OF_CONDUCT.md
COPYING
GIT-VERSION-GEN Git 2.32 2021-06-06 15:40:01 +09:00
INSTALL
LGPL-2.1
Makefile Merge branch 'jh/simple-ipc-sans-pthread' 2021-05-22 18:29:01 +09:00
README.md
RelNotes
SECURITY.md
abspath.c
aclocal.m4
add-interactive.c
add-interactive.h
add-patch.c
advice.c
advice.h
alias.c
alias.h
alloc.c
alloc.h
apply.c Merge branch 'jz/apply-3way-first-message-fix' 2021-05-07 12:47:38 +09:00
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
attr.c
attr.h
banned.h
base85.c
bisect.c
bisect.h
blame.c
blame.h
blob.c
blob.h
bloom.c Merge branch 'ah/plugleaks' 2021-05-07 12:47:41 +09:00
bloom.h
branch.c Merge branch 'bc/hash-transition-interop-part-1' 2021-05-10 16:59:46 +09:00
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h Merge branch 'mt/parallel-checkout-part-3' 2021-05-16 21:05:23 +09:00
chdir-notify.c
chdir-notify.h
check-builtins.sh
check_bindir
checkout.c
checkout.h
chunk-format.c
chunk-format.h
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-graph.c
commit-graph.h
commit-reach.c
commit-reach.h
commit-slab-decl.h
commit-slab-impl.h
commit-slab.h
commit.c
commit.h
common-main.c
config.c Merge branch 'ps/config-global-override' 2021-05-07 12:47:39 +09:00
config.h
config.mak.dev
config.mak.in
config.mak.uname
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c
date.c
decorate.c
decorate.h
delta-islands.c
delta-islands.h
delta.h
detect-compiler
diff-delta.c
diff-lib.c
diff-merges.c
diff-merges.h
diff-no-index.c dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
diff.c Merge branch 'pw/word-diff-zero-width-matches' 2021-05-14 08:26:06 +09:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c
diffcore-rotate.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c Merge branch 'en/dir-traversal' 2021-05-28 13:03:00 +09:00
dir.h dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
editor.c
entry.c dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
entry.h
environment.c
environment.h
exec-cmd.c
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c fetch: teach independent negotiation (no packfile) 2021-05-05 10:41:29 +09:00
fetch-pack.h fetch: teach independent negotiation (no packfile) 2021-05-05 10:41:29 +09:00
fmt-merge-msg.c
fmt-merge-msg.h
fsck.c fsck: warn about symlinked dotfiles we'll open with O_NOFOLLOW 2021-05-04 11:52:02 +09:00
fsck.h fsck: warn about symlinked dotfiles we'll open with O_NOFOLLOW 2021-05-04 11:52:02 +09:00
fsmonitor.c
fsmonitor.h
fuzz-commit-graph.c
fuzz-pack-headers.c
fuzz-pack-idx.c
generate-cmdlist.sh
generate-configlist.sh
gettext.c
gettext.h
git-add--interactive.perl
git-archimport.perl
git-bisect.sh
git-compat-util.h
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py git-p4: speed up search for branch parent 2021-05-06 12:51:33 +09:00
git-quiltimport.sh
git-rebase--preserve-merges.sh
git-request-pull.sh
git-send-email.perl Merge branch 'ab/send-email-inline-hooks-path' 2021-05-27 12:36:57 +09:00
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh submodule update: silence underlying fetch with "--quiet" 2021-05-03 12:24:38 +09:00
git-svn.perl
git-web--browse.sh
git.c Merge branch 'ps/config-env-option-with-separate-value' 2021-05-07 12:47:37 +09:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hash-lookup.c
hash-lookup.h
hash.h
hashmap.c
hashmap.h
help.c
help.h
hex.c
http-backend.c
http-fetch.c
http-push.c Merge branch 'bc/hash-transition-interop-part-1' 2021-05-10 16:59:46 +09:00
http-walker.c
http.c Merge branch 'cs/http-use-basic-after-failed-negotiate' 2021-05-21 05:49:41 +09:00
http.h
ident.c
imap-send.c
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
line-log.c
line-log.h
line-range.c
line-range.h
linear-assignment.c
linear-assignment.h
list-objects-filter-options.c
list-objects-filter-options.h
list-objects-filter.c
list-objects-filter.h
list-objects.c
list-objects.h
list.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c
log-tree.h
ls-refs.c
ls-refs.h
mailinfo.c Merge branch 'dd/mailinfo-quoted-cr' 2021-05-16 21:05:23 +09:00
mailinfo.h am: learn to process quoted lines that ends with CRLF 2021-05-10 15:06:22 +09:00
mailmap.c
mailmap.h
match-trees.c
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-ort-wrappers.c merge(s): apply consistent punctuation to "up to date" messages 2021-05-03 14:14:56 +09:00
merge-ort-wrappers.h
merge-ort.c Merge branch 'ah/merge-ort-i18n' 2021-05-16 21:05:23 +09:00
merge-ort.h
merge-recursive.c Merge branch 'js/merge-already-up-to-date-message-reword' 2021-05-11 15:27:22 +09:00
merge-recursive.h
merge.c
mergesort.c
mergesort.h
midx.c
midx.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object-file.c dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
object-name.c
object-store.h
object.c
object.h Merge branch 'jt/push-negotiation' 2021-05-16 21:05:22 +09:00
oid-array.c
oid-array.h
oidmap.c
oidmap.h
oidset.c
oidset.h
pack-bitmap-write.c
pack-bitmap.c Merge branch 'ps/rev-list-object-type-filter' 2021-05-07 12:47:41 +09:00
pack-bitmap.h Merge branch 'ps/rev-list-object-type-filter' 2021-05-07 12:47:41 +09:00
pack-check.c
pack-objects.c
pack-objects.h pack-objects: move static inline from a header to the sole consumer 2021-05-27 12:14:41 +09:00
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
packfile.h
pager.c pager: avoid setting COLUMNS when we're guessing its value 2021-06-28 10:42:10 -07:00
parallel-checkout.c ci: run test round with parallel-checkout enabled 2021-05-05 12:27:17 +09:00
parallel-checkout.h
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c t0060: test ntfs/hfs-obscured dotfiles 2021-05-04 11:52:02 +09:00
path.h
pathspec.c Merge branch 'mt/add-rm-in-sparse-checkout' 2021-05-07 12:47:40 +09:00
pathspec.h Merge branch 'mt/add-rm-in-sparse-checkout' 2021-05-07 12:47:40 +09:00
pkt-line.c
pkt-line.h
preload-index.c
pretty.c
pretty.h
prio-queue.c
prio-queue.h
progress.c
progress.h
promisor-remote.c
promisor-remote.h
prompt.c
prompt.h
protocol-caps.c
protocol-caps.h
protocol.c
protocol.h
prune-packed.c
prune-packed.h
quote.c
quote.h
range-diff.c
range-diff.h
reachable.c Merge branch 'ps/rev-list-object-type-filter' 2021-05-07 12:47:41 +09:00
reachable.h
read-cache.c Merge branch 'mt/parallel-checkout-part-3' 2021-05-16 21:05:23 +09:00
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c Merge branch 'zh/ref-filter-push-remote-fix' 2021-05-20 08:55:00 +09:00
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'bc/hash-transition-interop-part-1' 2021-05-10 16:59:46 +09:00
refs.h
refspec.c
refspec.h
remote-curl.c remote-curl: fix clone on sha256 repos 2021-05-12 12:14:44 +09:00
remote.c
remote.h
replace-object.c
replace-object.h
repo-settings.c
repository.c
repository.h
rerere.c dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
rerere.h
reset.c
reset.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'ah/plugleaks' 2021-05-07 12:47:41 +09:00
revision.h
run-command.c
run-command.h
send-pack.c send-pack: support push negotiation 2021-05-05 10:41:29 +09:00
send-pack.h
sequencer.c Merge branch 'bc/hash-transition-interop-part-1' 2021-05-10 16:59:46 +09:00
sequencer.h
serve.c
serve.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c
shallow.h
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
simple-ipc.h simple-ipc: correct ifdefs when NO_PTHREADS is defined 2021-05-21 07:55:00 +09:00
sparse-index.c Merge branch 'ds/sparse-index-protections' 2021-05-21 05:50:38 +09:00
sparse-index.h
split-index.c
split-index.h
stable-qsort.c
strbuf.c
strbuf.h
streaming.c streaming.c: move {open,close,read} from vtable to "struct git_istream" 2021-05-06 12:56:10 +09:00
streaming.h
string-list.c
string-list.h
strmap.c
strmap.h
strvec.c
strvec.h
sub-process.c
sub-process.h
submodule-config.c
submodule-config.h
submodule.c Merge branch 'bc/hash-transition-interop-part-1' 2021-05-10 16:59:46 +09:00
submodule.h
symlinks.c
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trace2.c
trace2.h
trailer.c trailer: add new .cmd config option 2021-05-04 12:09:43 +09:00
trailer.h
transport-helper.c fetch: teach independent negotiation (no packfile) 2021-05-05 10:41:29 +09:00
transport-internal.h
transport.c Merge branch 'jt/push-negotiation' 2021-05-16 21:05:22 +09:00
transport.h fetch: teach independent negotiation (no packfile) 2021-05-05 10:41:29 +09:00
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unix-stream-server.c
unix-stream-server.h
unpack-trees.c Merge branch 'mt/parallel-checkout-part-3' 2021-05-16 21:05:23 +09:00
unpack-trees.h
upload-pack.c Merge branch 'jt/push-negotiation' 2021-05-16 21:05:22 +09:00
upload-pack.h
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c t0060: test ntfs/hfs-obscured dotfiles 2021-05-04 11:52:02 +09:00
utf8.h t0060: test ntfs/hfs-obscured dotfiles 2021-05-04 11:52:02 +09:00
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c dir: introduce readdir_skip_dot_and_dotdot() helper 2021-05-27 14:02:37 +09:00
worktree.h
wrap-for-bin.sh
wrapper.c
write-or-die.c fsync(): be prepared to see EINTR 2021-06-05 22:13:40 +09:00
ws.c
wt-status.c Merge branch 'bc/hash-transition-interop-part-1' 2021-05-10 16:59:46 +09:00
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c

README.md

Build status

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-<commandname>.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at https://lore.kernel.org/git/, http://marc.info/?l=git and other archival sites.

Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • "goddamn idiotic truckload of sh*t": when it breaks