pkt-line: support tracing verbatim pack contents

diff --git a/Documentation/git.txt b/Documentation/git.txt
index ccc12b280652609bfd5eb089e194a9219b7fc9f2..345366937dcf46384790aca79b96dfe10e0a00a5 100644 (file)
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -43,9 +43,10 @@ unreleased) version of Git, that is available from the 'master'
 branch of the `git.git` repository.
 Documentation for older releases are available here:
 
-* link:v2.4.2/git.html[documentation for release 2.4.2]
+* link:v2.4.3/git.html[documentation for release 2.4.3]
 
 * release notes for
+  link:RelNotes/2.4.3.txt[2.4.3],
   link:RelNotes/2.4.2.txt[2.4.2],
   link:RelNotes/2.4.1.txt[2.4.1],
   link:RelNotes/2.4.0.txt[2.4].
@@ -999,9 +1000,20 @@ Unsetting the variable, or setting it to empty, "0" or
        Enables trace messages for all packets coming in or out of a
        given program. This can help with debugging object negotiation
        or other protocol issues. Tracing is turned off at a packet
-       starting with "PACK".
+       starting with "PACK" (but see 'GIT_TRACE_PACKFILE' below).
        See 'GIT_TRACE' for available trace output options.
 
+'GIT_TRACE_PACKFILE'::
+       Enables tracing of packfiles sent or received by a
+       given program. Unlike other trace output, this trace is
+       verbatim: no headers, and no quoting of binary data. You almost
+       certainly want to direct into a file (e.g.,
+       `GIT_TRACE_PACKFILE=/tmp/my.pack`) rather than displaying it on
+       the terminal or mixing it with other trace output.
++
+Note that this is currently only implemented for the client side
+of clones and fetches.
+
 'GIT_TRACE_PERFORMANCE'::
        Enables performance related trace messages, e.g. total execution
        time of each Git command.