This is the command git-commit-tree that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
git-commit-tree - Create a new commit object
git commit-tree <tree> [(-p <parent>)...]
git commit-tree [(-p <parent>)...] [-S[<keyid>]] [(-m <message>)...]
[(-F <file>)...] <tree>
This is usually not what an end user wants to run directly. See git-commit(1) instead.
Creates a new commit object based on the provided tree object and emits the new commit
object id on stdout. The log message is read from the standard input, unless -m or -F
options are given.
A commit object may have any number of parents. With exactly one parent, it is an ordinary
commit. Having more than one parent makes the commit a merge between several lines of
history. Initial (root) commits have no parents.
While a tree represents a particular directory state of a working directory, a commit
represents that state in "time", and explains how to get there.
Normally a commit would identify a new "HEAD" state, and while Git doesn’t care where you
save the note about that state, in practice we tend to just write the result to the file
that is pointed at by .git/HEAD, so that we can always see what the last committed state
An existing tree object
Each -p indicates the id of a parent commit object.
A paragraph in the commit log message. This can be given more than once and each
<message> becomes its own paragraph.
Read the commit log message from the given file. Use - to read from the standard
GPG-sign commits. The keyid argument is optional and defaults to the committer
identity; if specified, it must be stuck to the option without a space.
Countermand commit.gpgSign configuration variable that is set to force each and every
commit to be signed.
A commit encapsulates:
· all parent object ids
· author name, email and date
· committer name and email and the commit time.
While parent object ids are provided on the command line, author and committer information
is taken from the following environment variables, if set:
(nb "<", ">" and "\n"s are stripped)
In case (some of) these environment variables are not set, the information is taken from
the configuration items user.name and user.email, or, if not present, the environment
variable EMAIL, or, if that is not set, system user name and the hostname used for
outgoing mail (taken from /etc/mailname and falling back to the fully qualified hostname
when that file does not exist).
A commit comment is read from stdin. If a changelog entry is not provided via "<"
redirection, git commit-tree will just wait for one to be entered and terminated with ^D.
The GIT_AUTHOR_DATE, GIT_COMMITTER_DATE environment variables support the following date
Git internal format
It is <unix timestamp> <time zone offset>, where <unix timestamp> is the number of
seconds since the UNIX epoch. <time zone offset> is a positive or negative offset
from UTC. For example CET (which is 2 hours ahead UTC) is +0200.
The standard email format as described by RFC 2822, for example Thu, 07 Apr 2005
Time and date specified by the ISO 8601 standard, for example 2005-04-07T22:13:13. The
parser accepts a space instead of the T character as well.
In addition, the date part is accepted in the following formats: YYYY.MM.DD,
MM/DD/YYYY and DD.MM.YYYY.
Git is to some extent character encoding agnostic.
· The contents of the blob objects are uninterpreted sequences of bytes. There is no
encoding translation at the core level.
· Path names are encoded in UTF-8 normalization form C. This applies to tree objects,
the index file, ref names, as well as path names in command line arguments,
environment variables and config files (.git/config (see git-config(1)), gitignore(5),
gitattributes(5) and gitmodules(5)).
Note that Git at the core level treats path names simply as sequences of non-NUL
bytes, there are no path name encoding conversions (except on Mac and Windows).
Therefore, using non-ASCII path names will mostly work even on platforms and file
systems that use legacy extended ASCII encodings. However, repositories created on
such systems will not work properly on UTF-8-based systems (e.g. Linux, Mac, Windows)
and vice versa. Additionally, many Git-based tools simply assume path names to be
UTF-8 and will fail to display other encodings correctly.
· Commit log messages are typically encoded in UTF-8, but other extended ASCII encodings
are also supported. This includes ISO-8859-x, CP125x and many others, but not
UTF-16/32, EBCDIC and CJK multi-byte encodings (GBK, Shift-JIS, Big5, EUC-x, CP9xx
Although we encourage that the commit log messages are encoded in UTF-8, both the core and
Git Porcelain are designed not to force UTF-8 on projects. If all participants of a
particular project find it more convenient to use legacy encodings, Git does not forbid
it. However, there are a few things to keep in mind.
1. git commit and git commit-tree issues a warning if the commit log message given to it
does not look like a valid UTF-8 string, unless you explicitly say your project uses a
legacy encoding. The way to say this is to have i18n.commitencoding in .git/config
file, like this:
commitencoding = ISO-8859-1
Commit objects created with the above setting record the value of i18n.commitencoding
in its encoding header. This is to help other people who look at them later. Lack of
this header implies that the commit log message is encoded in UTF-8.
2. git log, git show, git blame and friends look at the encoding header of a commit
object, and try to re-code the log message into UTF-8 unless otherwise specified. You
can specify the desired output encoding with i18n.logoutputencoding in .git/config
file, like this:
logoutputencoding = ISO-8859-1
If you do not have this configuration variable, the value of i18n.commitencoding is
Note that we deliberately chose not to re-code the commit log message when a commit is
made to force UTF-8 at the commit object level, because re-coding to UTF-8 is not
necessarily a reversible operation.
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