[PATCH 1/2] Fixes _is_git

[Remi Rampin <remirampin@gmail.com>]

Function _git_dir would previously fail to accept a "gitdir: ..." file
as a valid Git repository.
---
 lib/choose_repository.tcl | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/choose_repository.tcl b/lib/choose_repository.tcl
index 92d6022..49ff641 100644
--- a/lib/choose_repository.tcl
+++ b/lib/choose_repository.tcl
@@ -339,6 +339,16 @@ method _git_init {} {
 }
 
 proc _is_git {path} {
+	if {[file isfile $path]} {
+		set fp [open $path r]
+		gets $fp line
+		close $fp
+		if {[regexp "^gitdir: (.+)$" $line line link_target]} {
+			return [_is_git [file join [file dirname $path] $link_target]]
+		}
+		return 0
+	}
+
 	if {[file exists [file join $path HEAD]]
 	 && [file exists [file join $path objects]]
 	 && [file exists [file join $path config]]} {
-- 
1.9.5.msysgit.0