Re: [PATCH] git-gui.sh: support Tcl 8.4

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^"Kyle J. McKay" <mackyle@xxxxxxxxx> writes:

> greater.  But Jens mentions this in $gmane/249491 (that the original
> patch was missing the ">= 0" part).

Ah, that is what I missed.  Thanks.

> I can't find anything in that thread about why vsatisfies was
> preferred over vcompare other than the obvious that the vsatisfies
> version is only a 1-character change.  And that would be more than
> enough except that Tcl 8.4 doesn't support the trailing '-' vsatisfies
> syntax.

Yeah, I fully agree with that observation.

>> * Would it be a good idea to update the places $gmane/248895 points
>>   out?  It is clearly outside the scope of this fix, but we may
>>   want to do so while our mind is on the "how do we check required
>>   version?" in a separate patch.
>
> Makes sense to me, but my Tcl knowledge isn't up to making those
> changes as the code's a bit different.  I have to paraphrase Chris's
> message here by saying that I guess those checks are correct if not
> consistent with the others.

OK, let's ask Pat (cc'ed) to apply your version as-is without
touching these 1.5.3 references.  I do not take patches to git-gui
directly to my tree.

Thanks.

-- >8 --
From: "Kyle J. McKay" <mackyle@xxxxxxxxx>
Date: Tue,  6 Jan 2015 02:41:21 -0800 

Tcl 8.5 introduced an extended vsatisfies syntax that is not
supported by Tcl 8.4.

Since only Tcl 8.4 is required this presents a problem.

The extended syntax was used starting with Git 2.0.0 in commit
b3f0c5c0 (git-gui: tolerate major version changes when comparing the
git version, 2014-05-17), so that a major version change would still
satisfy the condition.

However, what we really want is just a basic version compare, so use
vcompare instead to restore compatibility with Tcl 8.4.

Signed-off-by: Kyle J. McKay <mackyle@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 git-gui.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/git-gui.sh b/git-gui.sh
index b186329d..a1a23b56 100755
--- a/git-gui/git-gui.sh
+++ b/git-gui/git-gui.sh
@@ -1283,7 +1283,7 @@ load_config 0
 apply_config
 
 # v1.7.0 introduced --show-toplevel to return the canonical work-tree
-if {[package vsatisfies $_git_version 1.7.0-]} {
+if {[package vcompare $_git_version 1.7.0] >= 0} {
 	if { [is_Cygwin] } {
 		catch {set _gitworktree [exec cygpath --windows [git rev-parse --show-toplevel]]}
 	} else {
@@ -1539,7 +1539,7 @@ proc rescan_stage2 {fd after} {
 		close $fd
 	}
 
-	if {[package vsatisfies $::_git_version 1.6.3-]} {
+	if {[package vcompare $::_git_version 1.6.3] >= 0} {
 		set ls_others [list --exclude-standard]
 	} else {
 		set ls_others [list --exclude-per-directory=.gitignore]
-- 
2.1.4

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