git-gui: ensure the file in the diff pane is in the list of selected files

diff --git a/lib/commit.tcl b/lib/commit.tcl
index 17aba914af701349da900deb908af9117c580672..864b687057c9759f2b06a9a83e3ca18c51113d92 100644 (file)
--- a/lib/commit.tcl
+++ b/lib/commit.tcl
@@ -161,11 +161,12 @@ The rescan will be automatically started now.
        #
        set files_ready 0
        foreach path [array names file_states] {
-               switch -glob -- [lindex $file_states($path) 0] {
+               set s $file_states($path)
+               switch -glob -- [lindex $s 0] {
                _? {continue}
                A? -
                D? -
-               T_ -
+               T? -
                M? {set files_ready 1}
                _U -
                U? {
@@ -259,8 +260,25 @@ proc commit_prehook_wait {fd_ph curHEAD msg_p} {
 }
 
 proc commit_commitmsg {curHEAD msg_p} {
+       global is_detached repo_config
        global pch_error
 
+       if {$is_detached
+           && ![file exists [gitdir rebase-merge head-name]]
+           &&  [is_config_true gui.warndetachedcommit]} {
+               set msg [mc "You are about to commit on a detached head.\
+This is a potentially dangerous thing to do because if you switch\
+to another branch you will lose your changes and it can be difficult\
+to retrieve them later from the reflog. You should probably cancel this\
+commit and create a new branch to continue.\n\
+\n\
+Do you really want to proceed with your Commit?"]
+               if {[ask_popup $msg] ne yes} {
+                       unlock_index
+                       return
+               }
+       }
+
        # -- Run the commit-msg hook.
        #
        set fd_ph [githook_read commit-msg $msg_p]
@@ -391,6 +409,7 @@ A rescan will be automatically started now.
        catch {file delete [gitdir MERGE_MSG]}
        catch {file delete [gitdir SQUASH_MSG]}
        catch {file delete [gitdir GITGUI_MSG]}
+       catch {file delete [gitdir CHERRY_PICK_HEAD]}
 
        # -- Let rerere do its thing.
        #
@@ -407,8 +426,8 @@ A rescan will be automatically started now.
        #
        set fd_ph [githook_read post-commit]
        if {$fd_ph ne {}} {
-               upvar #0 pch_error$cmt_id pc_err
-               set pc_err {}
+               global pch_error
+               set pch_error {}
                fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
                fileevent $fd_ph readable \
                        [list commit_postcommit_wait $fd_ph $cmt_id]
@@ -452,7 +471,11 @@ A rescan will be automatically started now.
                }
                AM -
                AD -
+               AT -
+               TM -
+               TD -
                MM -
+               MT -
                MD {
                        set file_states($path) [list \
                                _[string index $m 1] \
@@ -470,7 +493,7 @@ A rescan will be automatically started now.
 }
 
 proc commit_postcommit_wait {fd_ph cmt_id} {
-       upvar #0 pch_error$cmt_id pch_error
+       global pch_error
 
        append pch_error [read $fd_ph]
        fconfigure $fd_ph -blocking 1