Re: [PATCH 2/5] difftool: Eliminate global variables

[Sebastian Schuberth <sschuberth@gmail.com>]

On 23.07.2012 05:42, David Aguilar wrote:

> Organize the script so that it has a single main() function which
> calls out to dir_diff() and file_diff() functions. This eliminates
> "dir-diff"-specific variables that do not need to be calculated when
> performing a regular file-diff.

Funny, I just have prepared a patch along the same lines so that one can 
call git-difftool -h and --tool-help also outside a repository, see 
below. Does you patch offer the same? If so, I'll drop mine.

---
  git-difftool.perl | 12 ++++++++----
  1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/git-difftool.perl b/git-difftool.perl
index ae1e052..e7b71c9 100755
--- a/git-difftool.perl
+++ b/git-difftool.perl
@@ -25,8 +25,9 @@ use Git;
  my @tools;
  my @working_tree;
  my $rc;
-my $repo = Git->repository();
-my $repo_path = $repo->repo_path();
+my $repo;
+my $repo_path;
+my $workdir;

  sub usage
  {
@@ -62,8 +63,6 @@ sub find_worktree
  	return $worktree;
  }

-my $workdir = find_worktree();
-
  sub filter_tool_scripts
  {
  	if (-d $_) {
@@ -293,6 +292,11 @@ if (defined($help)) {
  if (defined($tool_help)) {
  	print_tool_help();
  }
+
+$repo = Git->repository();
+$repo_path = $repo->repo_path();
+$workdir = find_worktree();
+
  if (defined($difftool_cmd)) {
  	if (length($difftool_cmd) > 0) {
  		$ENV{GIT_DIFF_TOOL} = $difftool_cmd;
-- 
1.7.11.msysgit.2