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-rw-r--r--Documentation/git.txt156
1 files changed, 137 insertions, 19 deletions
diff --git a/Documentation/git.txt b/Documentation/git.txt
index dba7f0c18e..9d6769e95a 100644
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -33,7 +33,8 @@ individual Git commands with "git help command". linkgit:gitcli[7]
manual page gives you an overview of the command-line command syntax.
A formatted and hyperlinked copy of the latest Git documentation
-can be viewed at `https://git.github.io/htmldocs/git.html`.
+can be viewed at https://git.github.io/htmldocs/git.html
+or https://git-scm.com/docs.
OPTIONS
@@ -56,7 +57,8 @@ help ...`.
Run as if git was started in '<path>' instead of the current working
directory. When multiple `-C` options are given, each subsequent
non-absolute `-C <path>` is interpreted relative to the preceding `-C
- <path>`.
+ <path>`. If '<path>' is present but empty, e.g. `-C ""`, then the
+ current working directory is left unchanged.
+
This option affects options that expect path name like `--git-dir` and
`--work-tree` in that their interpretations of the path names would be
@@ -76,7 +78,7 @@ Note that omitting the `=` in `git -c foo.bar ...` is allowed and sets
`foo.bar` to the boolean true value (just like `[foo]bar` would in a
config file). Including the equals but with an empty value (like `git -c
foo.bar= ...`) sets `foo.bar` to the empty string which `git config
---bool` will convert to `false`.
+--type=bool` will convert to `false`.
--exec-path[=<path>]::
Path to wherever your core Git programs are installed.
@@ -108,9 +110,23 @@ foo.bar= ...`) sets `foo.bar` to the empty string which `git config
Do not pipe Git output into a pager.
--git-dir=<path>::
- Set the path to the repository. This can also be controlled by
- setting the `GIT_DIR` environment variable. It can be an absolute
- path or relative path to current working directory.
+ Set the path to the repository (".git" directory). This can also be
+ controlled by setting the `GIT_DIR` environment variable. It can be
+ an absolute path or relative path to current working directory.
++
+Specifying the location of the ".git" directory using this
+option (or `GIT_DIR` environment variable) turns off the
+repository discovery that tries to find a directory with
+".git" subdirectory (which is how the repository and the
+top-level of the working tree are discovered), and tells Git
+that you are at the top level of the working tree. If you
+are not at the top-level directory of the working tree, you
+should tell Git where the top-level of the working tree is,
+with the `--work-tree=<path>` option (or `GIT_WORK_TREE`
+environment variable)
++
+If you just want to run git as if it was started in `<path>` then use
+`git -C <path>`.
--work-tree=<path>::
Set the path to the working tree. It can be an absolute path
@@ -210,6 +226,26 @@ people via patch over e-mail.
include::cmds-foreignscminterface.txt[]
+Reset, restore and revert
+~~~~~~~~~~~~~~~~~~~~~~~~~
+There are three commands with similar names: `git reset`,
+`git restore` and `git revert`.
+
+* linkgit:git-revert[1] is about making a new commit that reverts the
+ changes made by other commits.
+
+* linkgit:git-restore[1] is about restoring files in the working tree
+ from either the index or another commit. This command does not
+ update your branch. The command can also be used to restore files in
+ the index from another commit.
+
+* linkgit:git-reset[1] is about updating your branch, moving the tip
+ in order to add or remove commits from the branch. This operation
+ changes the commit history.
++
+`git reset` can also be used to restore the index, overlapping with
+`git restore`.
+
Low-level commands (plumbing)
-----------------------------
@@ -249,8 +285,8 @@ In general, the interrogate commands do not touch the files in
the working tree.
-Synching repositories
-~~~~~~~~~~~~~~~~~~~~~
+Syncing repositories
+~~~~~~~~~~~~~~~~~~~~
include::cmds-synchingrepositories.txt[]
@@ -402,11 +438,11 @@ Git so take care if using a foreign front-end.
of Git object directories which can be used to search for Git
objects. New objects will not be written to these directories.
+
- Entries that begin with `"` (double-quote) will be interpreted
- as C-style quoted paths, removing leading and trailing
- double-quotes and respecting backslash escapes. E.g., the value
- `"path-with-\"-and-:-in-it":vanilla-path` has two paths:
- `path-with-"-and-:-in-it` and `vanilla-path`.
+Entries that begin with `"` (double-quote) will be interpreted
+as C-style quoted paths, removing leading and trailing
+double-quotes and respecting backslash escapes. E.g., the value
+`"path-with-\"-and-:-in-it":vanilla-path` has two paths:
+`path-with-"-and-:-in-it` and `vanilla-path`.
`GIT_DIR`::
If the `GIT_DIR` environment variable is set then it
@@ -457,16 +493,45 @@ Git so take care if using a foreign front-end.
details. This variable has lower precedence than other path
variables such as GIT_INDEX_FILE, GIT_OBJECT_DIRECTORY...
+`GIT_DEFAULT_HASH_ALGORITHM`::
+ If this variable is set, the default hash algorithm for new
+ repositories will be set to this value. This value is currently
+ ignored when cloning; the setting of the remote repository
+ is used instead. The default is "sha1".
+
Git Commits
~~~~~~~~~~~
`GIT_AUTHOR_NAME`::
+ The human-readable name used in the author identity when creating commit or
+ tag objects, or when writing reflogs. Overrides the `user.name` and
+ `author.name` configuration settings.
+
`GIT_AUTHOR_EMAIL`::
+ The email address used in the author identity when creating commit or
+ tag objects, or when writing reflogs. Overrides the `user.email` and
+ `author.email` configuration settings.
+
`GIT_AUTHOR_DATE`::
+ The date used for the author identity when creating commit or tag objects, or
+ when writing reflogs. See linkgit:git-commit[1] for valid formats.
+
`GIT_COMMITTER_NAME`::
+ The human-readable name used in the committer identity when creating commit or
+ tag objects, or when writing reflogs. Overrides the `user.name` and
+ `committer.name` configuration settings.
+
`GIT_COMMITTER_EMAIL`::
+ The email address used in the author identity when creating commit or
+ tag objects, or when writing reflogs. Overrides the `user.email` and
+ `committer.email` configuration settings.
+
`GIT_COMMITTER_DATE`::
-'EMAIL'::
- see linkgit:git-commit-tree[1]
+ The date used for the committer identity when creating commit or tag objects, or
+ when writing reflogs. See linkgit:git-commit[1] for valid formats.
+
+`EMAIL`::
+ The email address used in the author and committer identities if no other
+ relevant environment variable or configuration setting has been set.
Git Diffs
~~~~~~~~~
@@ -522,6 +587,10 @@ other
a pager. See also the `core.pager` option in
linkgit:git-config[1].
+`GIT_PROGRESS_DELAY`::
+ A number controlling how many seconds to delay before showing
+ optional progress indicators. Defaults to 2.
+
`GIT_EDITOR`::
This environment variable overrides `$EDITOR` and `$VISUAL`.
It is used by several Git commands when, on interactive mode,
@@ -536,7 +605,6 @@ other
The command-line parameters passed to the configured command are
determined by the ssh variant. See `ssh.variant` option in
linkgit:git-config[1] for details.
-
+
`$GIT_SSH_COMMAND` takes precedence over `$GIT_SSH`, and is interpreted
by the shell, which allows additional arguments to be included.
@@ -599,8 +667,8 @@ trace messages into this file descriptor.
+
Alternatively, if the variable is set to an absolute path
(starting with a '/' character), Git will interpret this
-as a file path and will try to write the trace messages
-into it.
+as a file path and will try to append the trace messages
+to it.
+
Unsetting the variable, or setting it to empty, "0" or
"false" (case insensitive) disables trace messages.
@@ -661,6 +729,54 @@ of clones and fetches.
When a curl trace is enabled (see `GIT_TRACE_CURL` above), do not dump
data (that is, only dump info lines and headers).
+`GIT_TRACE2`::
+ Enables more detailed trace messages from the "trace2" library.
+ Output from `GIT_TRACE2` is a simple text-based format for human
+ readability.
++
+If this variable is set to "1", "2" or "true" (comparison
+is case insensitive), trace messages will be printed to
+stderr.
++
+If the variable is set to an integer value greater than 2
+and lower than 10 (strictly) then Git will interpret this
+value as an open file descriptor and will try to write the
+trace messages into this file descriptor.
++
+Alternatively, if the variable is set to an absolute path
+(starting with a '/' character), Git will interpret this
+as a file path and will try to append the trace messages
+to it. If the path already exists and is a directory, the
+trace messages will be written to files (one per process)
+in that directory, named according to the last component
+of the SID and an optional counter (to avoid filename
+collisions).
++
+In addition, if the variable is set to
+`af_unix:[<socket_type>:]<absolute-pathname>`, Git will try
+to open the path as a Unix Domain Socket. The socket type
+can be either `stream` or `dgram`.
++
+Unsetting the variable, or setting it to empty, "0" or
+"false" (case insensitive) disables trace messages.
++
+See link:technical/api-trace2.html[Trace2 documentation]
+for full details.
+
+
+`GIT_TRACE2_EVENT`::
+ This setting writes a JSON-based format that is suited for machine
+ interpretation.
+ See `GIT_TRACE2` for available trace output options and
+ link:technical/api-trace2.html[Trace2 documentation] for full details.
+
+`GIT_TRACE2_PERF`::
+ In addition to the text-based messages available in `GIT_TRACE2`, this
+ setting writes a column-based format for understanding nesting
+ regions.
+ See `GIT_TRACE2` for available trace output options and
+ link:technical/api-trace2.html[Trace2 documentation] for full details.
+
`GIT_REDACT_COOKIES`::
This can be set to a comma-separated list of strings. When a curl trace
is enabled (see `GIT_TRACE_CURL` above), whenever a "Cookies:" header
@@ -858,7 +974,9 @@ Reporting Bugs
Report bugs to the Git mailing list <git@vger.kernel.org> where the
development and maintenance is primarily done. You do not have to be
-subscribed to the list to send a message there.
+subscribed to the list to send a message there. See the list archive
+at https://lore.kernel.org/git for previous bug reports and other
+discussions.
Issues which are security relevant should be disclosed privately to
the Git Security mailing list <git-security@googlegroups.com>.