git-gui: add config value gui.diffopts for passing additional diff options

Signed-off-by: Tilman Vogel <tilman.vogel@web.de>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

diff --git a/git-gui.sh b/git-gui.sh
index 789c177..c190cbe 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -850,6 +850,7 @@ set default_config(gui.fastcopyblame) false
 set default_config(gui.copyblamethreshold) 40
 set default_config(gui.blamehistoryctx) 7
 set default_config(gui.diffcontext) 5
+set default_config(gui.diffopts) {}
 set default_config(gui.commitmsgwidth) 75
 set default_config(gui.newbranchtemplate) {}
 set default_config(gui.spellingdictionary) {}

diff --git a/lib/diff.tcl b/lib/diff.tcl
index f5ed5d1..ec44055 100644 (file)
--- a/lib/diff.tcl
+++ b/lib/diff.tcl
@@ -309,6 +309,7 @@ proc start_show_diff {cont_info {add_opts {}}} {
 
        lappend cmd -p
        lappend cmd --color
+       set cmd [concat $cmd $repo_config(gui.diffopts)]
        if {$repo_config(gui.diffcontext) >= 1} {
                lappend cmd "-U$repo_config(gui.diffcontext)"
        }

diff --git a/lib/option.tcl b/lib/option.tcl
index 719103a..fb06776 100644 (file)
--- a/lib/option.tcl
+++ b/lib/option.tcl
@@ -153,6 +153,7 @@ proc do_options {} {
                {i-20..200 gui.copyblamethreshold {mc "Minimum Letters To Blame Copy On"}}
                {i-0..300 gui.blamehistoryctx {mc "Blame History Context Radius (days)"}}
                {i-1..99 gui.diffcontext {mc "Number of Diff Context Lines"}}
+               {t gui.diffopts {mc "Additional Diff Parameters"}}
                {i-0..99 gui.commitmsgwidth {mc "Commit Message Text Width"}}
                {t gui.newbranchtemplate {mc "New Branch Name Template"}}
                {c gui.encoding {mc "Default File Contents Encoding"}}