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
+foo.bar= ...`) sets `foo.bar` to the empty string which `git config
--bool` will convert to `false`.
--exec-path[=<path>]::
Add "icase" magic to all pathspec. This is equivalent to setting
the `GIT_ICASE_PATHSPECS` environment variable to `1`.
+--no-optional-locks::
+ Do not perform optional operations that require locks. This is
+ equivalent to setting the `GIT_OPTIONAL_LOCKS` to `0`.
+
GIT COMMANDS
------------
Unsetting the variable, or setting it to empty, "0" or
"false" (case insensitive) disables trace messages.
+`GIT_TRACE_FSMONITOR`::
+ Enables trace messages for the filesystem monitor extension.
+ See `GIT_TRACE` for available trace output options.
+
`GIT_TRACE_PACK_ACCESS`::
Enables trace messages for all accesses to any packs. For each
access, the pack file name and an offset in the pack is
which feed potentially-untrusted URLS to git commands. See
linkgit:git-config[1] for more details.
+`GIT_OPTIONAL_LOCKS`::
+ If set to `0`, Git will complete any requested operation without
+ performing any optional sub-operations that require taking a lock.
+ For example, this will prevent `git status` from refreshing the
+ index as a side effect. This is useful for processes running in
+ the background which do not want to cause lock contention with
+ other operations on the repository. Defaults to `1`.
+
+`GIT_REDIRECT_STDIN`::
+`GIT_REDIRECT_STDOUT`::
+`GIT_REDIRECT_STDERR`::
+ Windows-only: allow redirecting the standard input/output/error
+ handles to paths specified by the environment variables. This is
+ particularly useful in multi-threaded applications where the
+ canonical way to pass standard handles via `CreateProcess()` is
+ not an option because it would require the handles to be marked
+ inheritable (and consequently *every* spawned process would
+ inherit them, possibly blocking regular Git operations). The
+ primary intended use case is to use named pipes for communication
+ (e.g. `\\.\pipe\my-git-stdin-123`).
++
+Two special values are supported: `off` will simply close the
+corresponding standard handle, and if `GIT_REDIRECT_STDERR` is
+`2>&1`, standard error will be redirected to the same handle as
+standard output.
+
Discussion[[Discussion]]
------------------------