gitk: Simplify calculation of gitdir

diff --git a/gitk b/gitk
index 5d150059df399153b09c62fdacc76fdf6df010cb..facf294cc01d4bdb5091c355f55ce69244b5ec66 100755 (executable)
--- a/gitk
+++ b/gitk
@@ -9,15 +9,6 @@ exec wish "$0" -- "$@"
 
 package require Tk
 
-proc gitdir {} {
-    global env
-    if {[info exists env(GIT_DIR)]} {
-       return $env(GIT_DIR)
-    } else {
-       return [exec git rev-parse --git-dir]
-    }
-}
-
 # A simple scheduler for compute-intensive stuff.
 # The aim is to make sure that event handlers for GUI actions can
 # run at least every 50-100 ms.  Unfortunately fileevent handlers are
@@ -3331,8 +3322,7 @@ proc gitknewtmpdir {} {
     global diffnum gitktmpdir gitdir
 
     if {![info exists gitktmpdir]} {
-       set gitktmpdir [file join [file dirname $gitdir] \
-                           [format ".gitk-tmp.%s" [pid]]]
+       set gitktmpdir [file join $gitdir [format ".gitk-tmp.%s" [pid]]]
        if {[catch {file mkdir $gitktmpdir} err]} {
            error_popup "[mc "Error creating temporary directory %s:" $gitktmpdir] $err"
            unset gitktmpdir
@@ -9060,6 +9050,7 @@ proc exec_citool {tool_args {baseid {}}} {
 proc cherrypick {} {
     global rowmenuid curview
     global mainhead mainheadid
+    global gitdir
 
     set oldhead [exec git rev-parse HEAD]
     set dheads [descheads $rowmenuid]
@@ -9088,7 +9079,7 @@ proc cherrypick {} {
                        conflict.\nDo you wish to run git citool to\
                        resolve it?"]]} {
                # Force citool to read MERGE_MSG
-               file delete [file join [gitdir] "GITGUI_MSG"]
+               file delete [file join $gitdir "GITGUI_MSG"]
                exec_citool {} $rowmenuid
            }
        } else {
@@ -9454,6 +9445,7 @@ proc refill_reflist {} {
 proc getallcommits {} {
     global allcommits nextarc seeds allccache allcwait cachedarcs allcupdate
     global idheads idtags idotherrefs allparents tagobjid
+    global gitdir
 
     if {![info exists allcommits]} {
        set nextarc 0
@@ -9461,7 +9453,7 @@ proc getallcommits {} {
        set seeds {}
        set allcwait 0
        set cachedarcs 0
-       set allccache [file join [gitdir] "gitk.cache"]
+       set allccache [file join $gitdir "gitk.cache"]
        if {![catch {
            set f [open $allccache r]
            set allcwait 1
@@ -11522,14 +11514,10 @@ setui $uicolor
 setoptions
 
 # check that we can find a .git directory somewhere...
-if {[catch {set gitdir [gitdir]}]} {
+if {[catch {set gitdir [exec git rev-parse --git-dir]}]} {
     show_error {} . [mc "Cannot find a git repository here."]
     exit 1
 }
-if {![file isdirectory $gitdir]} {
-    show_error {} . [mc "Cannot find the git directory \"%s\"." $gitdir]
-    exit 1
-}
 
 set selecthead {}
 set selectheadid {}