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brian m. carlson 318b023e4a object-file-convert: convert commit objects when writing 
When writing a commit object in a repository with both SHA-1 and
SHA-256, we'll need to convert our commit objects so that we can write
the hash values for both into the repository.  To do so, let's add a
function to convert commit objects.

Read the commit object and map the tree value and any of the parent
values, and copy the rest of the commit through unmodified.  Note that
we don't need to modify the signature headers, because they are the
same under both algorithms.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-10-02 14:57:39 -07:00
.github
block-sha1
builtin object: factor out parse_mode out of fast-import and tree-walk into in object.h 2023-10-02 14:57:39 -07:00
ci
compat Merge branch 'ds/maintenance-on-windows-fix' 2023-08-15 10:19:47 -07:00
contrib Merge branch 'ds/maintenance-on-windows-fix' 2023-08-15 10:19:47 -07:00
Documentation Git 2.42 2023-08-21 09:34:58 -07:00
ewah
git-gui
gitk-git
gitweb
mergetools
negotiator
oss-fuzz
perl
po Merge branch 'po-id' of github.com:bagasme/git-po 2023-08-21 07:05:38 +08:00
refs
reftable
sha1
sha1collisiondetection@855827c583
sha1dc
sha256 Merge branch 'ew/hash-with-openssl-evp' 2023-08-09 16:18:15 -07:00
t Merge branch 'pw/diff-no-index-from-named-pipes' 2023-08-15 10:19:47 -07:00
templates
trace2
xdiff
.cirrus.yml
.clang-format
.editorconfig
.gitattributes
.gitignore
.gitmodules
.mailmap
.tsan-suppressions
abspath.c
abspath.h
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
apply.h
archive-tar.c
archive-zip.c
archive.c
archive.h
attr.c
attr.h
banned.h
base85.c
base85.h
bisect.c
bisect.h
blame.c
blame.h
blob.c
blob.h
bloom.c
bloom.h
branch.c
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle-uri.c
bundle-uri.h
bundle.c
bundle.h
cache-tree.c object-file: add a compat_oid_in parameter to write_object_file_flags 2023-10-02 14:57:39 -07:00
cache-tree.h
cbtree.c
cbtree.h
chdir-notify.c
chdir-notify.h
check-builtins.sh
checkout.c
checkout.h
chunk-format.c
chunk-format.h
CODE_OF_CONDUCT.md
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: export add_header_signature to support handling signatures on tags 2023-10-02 14:57:39 -07:00
commit.h commit: export add_header_signature to support handling signatures on tags 2023-10-02 14:57:39 -07:00
common-main.c
config.c
config.h
config.mak.dev
config.mak.in
config.mak.uname win32: add a helper to run git.exe without a foreground window 2023-08-09 13:58:13 -07:00
configure.ac
connect.c
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
copy.h
COPYING
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c
date.c
date.h
decorate.c
decorate.h
delta-islands.c
delta-islands.h
delta.h
detect-compiler
diagnose.c
diagnose.h
diff-delta.c
diff-lib.c
diff-merges.c
diff-merges.h
diff-no-index.c
diff.c
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
dir.h
editor.c
editor.h
entry.c
entry.h
environment.c
environment.h
exec-cmd.c
exec-cmd.h
fetch-negotiator.c
fetch-negotiator.h
fetch-pack.c
fetch-pack.h
fmt-merge-msg.c
fmt-merge-msg.h
fsck.c
fsck.h
fsmonitor--daemon.h
fsmonitor-ipc.c
fsmonitor-ipc.h
fsmonitor-ll.h
fsmonitor-path-utils.h
fsmonitor-settings.c
fsmonitor-settings.h
fsmonitor.c
fsmonitor.h
generate-cmdlist.sh
generate-configlist.sh
generate-hooklist.sh
gettext.c
gettext.h
git-archimport.perl
git-compat-util.h
git-curl-compat.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-quiltimport.sh
git-request-pull.sh
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh
git-svn.perl
GIT-VERSION-GEN Git 2.42 2023-08-21 09:34:58 -07:00
git-web--browse.sh
git-zlib.c
git-zlib.h
git.c
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hash-ll.h object-names: support input of oids in any supported hash 2023-10-02 14:57:38 -07:00
hash-lookup.c
hash-lookup.h
hash.h cache: add a function to read an OID of a specific algorithm 2023-10-02 14:57:39 -07:00
hashmap.c
hashmap.h
help.c
help.h
hex.c
hex.h
hook.c
hook.h
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c
http.h
ident.c Merge branch 'bc/ident-dot-is-no-longer-crud-letter' 2023-08-09 16:18:15 -07:00
ident.h
imap-send.c
INSTALL
iterator.h
json-writer.c
json-writer.h
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
LGPL-2.1
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
lockfile.c
lockfile.h
log-tree.c
log-tree.h
loose.c loose: compatibilty short name support 2023-10-02 14:57:38 -07:00
loose.h loose: add a mapping between SHA-1 and SHA-256 for loose objects 2023-10-02 14:57:38 -07:00
ls-refs.c
ls-refs.h
mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile loose: add a mapping between SHA-1 and SHA-256 for loose objects 2023-10-02 14:57:38 -07:00
match-trees.c
match-trees.h
mem-pool.c
mem-pool.h
merge-blobs.c
merge-blobs.h
merge-ll.c
merge-ll.h
merge-ort-wrappers.c
merge-ort-wrappers.h
merge-ort.c
merge-ort.h
merge-recursive.c
merge-recursive.h
merge.c
merge.h
mergesort.h
midx.c
midx.h
name-hash.c
name-hash.h
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object-file-convert.c object-file-convert: convert commit objects when writing 2023-10-02 14:57:39 -07:00
object-file-convert.h object-file-convert: stubs for converting from one object format to another 2023-10-02 14:57:38 -07:00
object-file.c object-file: add a compat_oid_in parameter to write_object_file_flags 2023-10-02 14:57:39 -07:00
object-file.h
object-name.c object-names: support input of oids in any supported hash 2023-10-02 14:57:38 -07:00
object-name.h object-names: support input of oids in any supported hash 2023-10-02 14:57:38 -07:00
object-store-ll.h object-file: add a compat_oid_in parameter to write_object_file_flags 2023-10-02 14:57:39 -07:00
object-store.h
object.c loose: add a mapping between SHA-1 and SHA-256 for loose objects 2023-10-02 14:57:38 -07:00
object.h object: factor out parse_mode out of fast-import and tree-walk into in object.h 2023-10-02 14:57:39 -07:00
oid-array.c oid-array: teach oid-array to handle multiple kinds of oids 2023-10-02 14:57:38 -07:00
oid-array.h
oidmap.c
oidmap.h
oidset.c
oidset.h
oidtree.c
oidtree.h
pack-bitmap-write.c
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-mtimes.c
pack-mtimes.h
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c
packfile.h
pager.c
pager.h
parallel-checkout.c
parallel-checkout.h
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
preload-index.h
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
reachable.h
read-cache-ll.h
read-cache.c
read-cache.h
README.md
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c
ref-filter.h
reflog-walk.c
reflog-walk.h
reflog.c
reflog.h
refs.c
refs.h
refspec.c
refspec.h
RelNotes
remote-curl.c
remote.c
remote.h
replace-object.c
replace-object.h
repo-settings.c
repository.c loose: add a mapping between SHA-1 and SHA-256 for loose objects 2023-10-02 14:57:38 -07:00
repository.h repository: add a compatibility hash algorithm 2023-10-02 14:57:38 -07:00
rerere.c
rerere.h
reset.c
reset.h
resolve-undo.c
resolve-undo.h
revision.c
revision.h
run-command.c Merge branch 'ma/locate-in-path-for-windows' 2023-08-09 16:18:16 -07:00
run-command.h
sane-ctype.h
scalar.c
SECURITY.md
send-pack.c
send-pack.h
sequencer.c Merge branch 'pw/rebase-skip-commit-message-fix' 2023-08-09 16:18:16 -07:00
sequencer.h
serve.c
serve.h
server-info.c
server-info.h
setup.c repository: add a compatibility hash algorithm 2023-10-02 14:57:38 -07:00
setup.h
sh-i18n--envsubst.c
sha1dc_git.c
sha1dc_git.h
shallow.c
shallow.h
shared.mak
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
simple-ipc.h
sparse-index.c
sparse-index.h
split-index.c
split-index.h
stable-qsort.c
statinfo.c
statinfo.h
strbuf.c
strbuf.h
streaming.c
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
submodule.h
symlinks.c
symlinks.h
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace2.c
trace2.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c
transport-internal.h
transport.c
transport.h
tree-diff.c
tree-walk.c object: factor out parse_mode out of fast-import and tree-walk into in object.h 2023-10-02 14:57:39 -07:00
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
unpack-trees.h
upload-pack.c
upload-pack.h
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
versioncmp.h
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c
worktree.h
wrap-for-bin.sh
wrapper.c
wrapper.h
write-or-die.c
write-or-die.h
ws.c
ws.h
wt-status.c
wt-status.h
xdiff-interface.c
xdiff-interface.h

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 and Documentation/CodingGuidelines).

Those wishing to help with error message, usage and informational message string translations (localization l10) should see po/README.md (a po file is a Portable Object file that holds the translations).

To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org (not the Git list). 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