[PATCH v3] Improve remote-helpers documentation

[Ramkumar Ramachandra <artagnon@gmail.com>]

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
 Documentation/git-remote-helpers.txt |   39 +++++++++++++++++----------------
 1 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/Documentation/git-remote-helpers.txt
b/Documentation/git-remote-helpers.txt
index 1b5f61a..b1f4e5d 100644
--- a/Documentation/git-remote-helpers.txt
+++ b/Documentation/git-remote-helpers.txt
@@ -3,7 +3,7 @@ git-remote-helpers(1)

 NAME
 ----
-git-remote-helpers - Helper programs for interoperation with remote git
+git-remote-helpers - Helper programs for interacting with main git
without linking

 SYNOPSIS
 --------
@@ -13,10 +13,22 @@ DESCRIPTION
 -----------

 These programs are normally not used directly by end users, but are
-invoked by various git programs that interact with remote repositories
-when the repository they would operate on will be accessed using
-transport code not linked into the main git binary. Various particular
-helper programs will behave as documented here.
+invoked by various git programs that interact with remote
+repositories.  For a program to qualify as a remote helper, it must
+implement a subset of the capabilities documented here, and conform to
+the remote helper protocol. Remote helpers interact with the main git
+programs via text streams, and do not link to them.
+
+The curl helper is one such program. It is invoked via
+'git-remote-http', 'git-remote-https', 'git-remote-ftp', or
+'git-remote-ftps', and implments the capabilities 'fetch', 'option',
+and 'push'. The curl helper essentially helps in moving around native
+git objects.
+
+As opposed to native git objects, remote helpers can also provide a
+fast-import stream through the 'import' capability. This makes it
+especially useful when native interoperability with a foreign
+versioning system is desired.

 COMMANDS
 --------
@@ -118,17 +130,9 @@ capabilities reported by the helper.
 CAPABILITIES
 ------------

-'fetch'::
-	This helper supports the 'fetch' command.
-
-'option'::
-	This helper supports the option command.
-
-'push'::
-	This helper supports the 'push' command.
-
-'import'::
-	This helper supports the 'import' command.
+The following capabilities indicate that the remote helper supports
+the corresponding command with the same name: 'fetch', 'option',
+'push', 'connect', and 'import'.

 'refspec' 'spec'::
 	When using the import command, expect the source ref to have
@@ -140,9 +144,6 @@ CAPABILITIES
 	all, it must cover all refs reported by the list command; if
 	it is not used, it is effectively "*:*"

-'connect'::
-	This helper supports the 'connect' command.
-
 REF LIST ATTRIBUTES
 -------------------

-- 
1.7.0