gitk-git: add option to remove indentation on the commit comment

Indentation make us hard to copy-paste the content of commit comment
from gitk to other medium, especially when creating change log.

The "git log --pretty=raw" command does not have option to re-format
the pretty output again, so the only way to remove indentation is
by trimming left space line by line.

This changes add option "Remove indentation on comment" under
"General" option in Preference.  If its checked the comment will
rendered without left space; otherwise it will displayed as usual.

1 files changed, 24 insertions, 1 deletions

diff --git a/gitk-git/gitk b/gitk-git/gitk
index 91b16a3bb0..831e2e0178 100755
--- a/gitk-git/gitk
+++ b/gitk-git/gitk
@@ -1906,6 +1906,7 @@ proc readcommit {id} {
 
 proc parsecommit {id contents listed} {
     global commitinfo
+    global no_indent
 
     set inhdr 1
     set comment {}
@@ -1949,11 +1950,22 @@ proc parsecommit {id contents listed} {
         # if we got this via git cat-file, add the indentation
         set newcomment {}
         foreach line [split $comment "\n"] {
-            append newcomment "    "
+            if {!$no_indent} {
+                append newcomment "    "
+            }
             append newcomment $line
             append newcomment "\n"
         }
         set comment $newcomment
+    } else {
+        if {$no_indent} {
+            set newcomment {}
+            foreach line [split $comment "\n"] {
+                append newcomment [string range $line 4 end]
+                append newcomment "\n"
+            }
+            set comment $newcomment
+        }
     }
     set hasnote [string first "\nNotes:\n" $contents]
     set diff ""
@@ -11794,6 +11806,10 @@ proc prefspage_general {notebook} {
     grid x $page.webbrowserl $page.webbrowser -sticky ew
     grid configure $page.webbrowser -padx {0 5}
 
+    ttk::checkbutton $page.no_indent -variable no_indent \
+        -text [mc "Remove indentation on comment"]
+    grid x $page.no_indent -sticky w
+
     grid columnconfigure $page 2 -weight 1
 
     return $page
@@ -12097,6 +12113,7 @@ proc prefsok {} {
     global oldprefs prefstop fontpref treediffs
     global {*}$::config_variables
     global ctext
+    global no_indent
 
     catch {destroy $prefstop}
     unset prefstop
@@ -12151,6 +12168,9 @@ proc prefsok {} {
     if {$wrapdefault != $oldprefs(wrapdefault)} {
         $ctext configure -wrap $wrapdefault
     }
+    if {$no_indent != $oldprefs(no_indent)} {
+        reloadcommits
+    }
 }
 
 proc formatdate {d} {
@@ -12658,6 +12678,7 @@ set autocopy 0
 set autoselect 1
 set autosellen $hashlength
 set perfile_attrs 0
+set no_indent 0
 
 if {[tk windowingsystem] eq "aqua"} {
     set extdifftool "opendiff"
@@ -12787,6 +12808,7 @@ set config_variables {
     maxrefs
     maxwidth
     mergecolors
+    no_indent
     perfile_attrs
     reflinecolor
     refstohide
@@ -13033,3 +13055,4 @@ getcommits {}
 # indent-tabs-mode: t
 # tab-width: 8
 # End:
+# vim: ts=4 expandtab