contrib/git-svn: better documenting of CLI switches

Also, fix a asciidoc formatting error

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/contrib/git-svn/git-svn.perl b/contrib/git-svn/git-svn.perl
index db199a3..808b933 100755 (executable)
--- a/contrib/git-svn/git-svn.perl
+++ b/contrib/git-svn/git-svn.perl
@@ -60,16 +60,7 @@ for (my $i = 0; $i < @ARGV; $i++) {
        }
 };
 
-# we may be called as git-svn-(command), or git-svn(command).
-foreach (keys %cmd) {
-       if (/git\-svn\-?($_)(?:\.\w+)?$/) {
-               $cmd = $1;
-               last;
-       }
-}
-
-my %opts;
-%opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
+my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
 
 GetOptions(%opts, 'help|H|h' => \$_help,
                'version|V' => \$_version,
@@ -97,15 +88,25 @@ sub usage {
        print $fd <<"";
 git-svn - bidirectional operations between a single Subversion tree and git
 Usage: $0 <command> [options] [arguments]\n
-Available commands:
+
+       print $fd "Available commands:\n" unless $cmd;
 
        foreach (sort keys %cmd) {
+               next if $cmd && $cmd ne $_;
                print $fd '  ',pack('A13',$_),$cmd{$_}->[1],"\n";
+               foreach (keys %{$cmd{$_}->[2]}) {
+                       # prints out arguments as they should be passed:
+                       my $x = s#=s$## ? '<arg>' : s#=i$## ? '<num>' : '';
+                       print $fd ' ' x 17, join(', ', map { length $_ > 1 ?
+                                                       "--$_" : "-$_" }
+                                               split /\|/,$_)," $x\n";
+               }
        }
        print $fd <<"";
-\nGIT_SVN_ID may be set in the environment to an arbitrary identifier if
-you're tracking multiple SVN branches/repositories in one git repository
-and want to keep them separate.  See git-svn(1) for more information.
+\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
+arbitrary identifier if you're tracking multiple SVN branches/repositories in
+one git repository and want to keep them separate.  See git-svn(1) for more
+information.
 
        exit $exit;
 }

diff --git a/contrib/git-svn/git-svn.txt b/contrib/git-svn/git-svn.txt
index 7306048..8e9a971 100644 (file)
--- a/contrib/git-svn/git-svn.txt
+++ b/contrib/git-svn/git-svn.txt
@@ -116,6 +116,8 @@ OPTIONS
        They are both passed directly to git-diff-tree see
        git-diff-tree(1) for more information.
 
+ADVANCED OPTIONS
+----------------
 -b<refname>::
 --branch <refname>::
        Used with 'fetch' or 'commit'.
@@ -131,8 +133,21 @@ OPTIONS
        This option may be specified multiple times, once for each
        branch.
 
+-i<GIT_SVN_ID>::
+--id <GIT_SVN_ID>::
+       This sets GIT_SVN_ID (instead of using the environment).  See
+       the section on "Tracking Multiple Repositories or Branches" for
+       more information on using GIT_SVN_ID.
+
 COMPATIBILITY OPTIONS
 ---------------------
+--upgrade::
+       Only used with the 'rebuild' command.
+
+       Run this if you used an old version of git-svn that used
+       'git-svn-HEAD' instead of 'remotes/git-svn' as the branch
+       for tracking the remote.
+
 --no-ignore-externals::
        Only used with the 'fetch' and 'rebuild' command.
 
@@ -177,7 +192,7 @@ Tracking and contributing to an Subversion managed-project:
        git-svn commit remotes/git-svn..my-branch
 # Something is committed to SVN, pull the latest into your branch::
        git-svn fetch && git pull . remotes/git-svn
-# Append svn:ignore settings to the default git exclude file:
+# Append svn:ignore settings to the default git exclude file::
        git-svn show-ignore >> .git/info/exclude
 
 DESIGN PHILOSOPHY