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-rw-r--r--git-gui/lib/diff.tcl32
1 files changed, 30 insertions, 2 deletions
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl
index 925b3f5..bd5d189 100644
--- a/git-gui/lib/diff.tcl
+++ b/git-gui/lib/diff.tcl
@@ -255,7 +255,7 @@ proc show_other_diff {path w m cont_info} {
proc start_show_diff {cont_info {add_opts {}}} {
global file_states file_lists
- global is_3way_diff diff_active repo_config
+ global is_3way_diff is_submodule_diff diff_active repo_config
global ui_diff ui_index ui_workdir
global current_diff_path current_diff_side current_diff_header
@@ -265,6 +265,7 @@ proc start_show_diff {cont_info {add_opts {}}} {
set s $file_states($path)
set m [lindex $s 0]
set is_3way_diff 0
+ set is_submodule_diff 0
set diff_active 1
set current_diff_header {}
@@ -295,6 +296,16 @@ proc start_show_diff {cont_info {add_opts {}}} {
lappend cmd $path
}
+ if {[string match {160000 *} [lindex $s 2]]
+ || [string match {160000 *} [lindex $s 3]]} {
+ set is_submodule_diff 1
+ if {$w eq $ui_index} {
+ set cmd [list submodule summary --cached -- $path]
+ } else {
+ set cmd [list submodule summary --files -- $path]
+ }
+ }
+
if {[catch {set fd [eval git_read --nice $cmd]} err]} {
set diff_active 0
unlock_index
@@ -312,7 +323,7 @@ proc start_show_diff {cont_info {add_opts {}}} {
}
proc read_diff {fd cont_info} {
- global ui_diff diff_active
+ global ui_diff diff_active is_submodule_diff
global is_3way_diff is_conflict_diff current_diff_header
global current_diff_queue
global diff_empty_count
@@ -374,6 +385,23 @@ proc read_diff {fd cont_info} {
set tags {}
}
}
+ } elseif {$is_submodule_diff} {
+ if {$line == ""} continue
+ if {[regexp {^\* } $line]} {
+ set line [string replace $line 0 1 {Submodule }]
+ set tags d_@
+ } else {
+ set op [string range $line 0 2]
+ switch -- $op {
+ { <} {set tags d_-}
+ { >} {set tags d_+}
+ { W} {set tags {}}
+ default {
+ puts "error: Unhandled submodule diff marker: {$op}"
+ set tags {}
+ }
+ }
+ }
} else {
set op [string index $line 0]
switch -- $op {