Merge remote-tracking branch 'lenormf/fix-git-tools'

rc/tools/git.kak

@@ -36,6 +36,14 @@ Available commands:\n  add\n  rm\n  blame\n  commit\n  checkout\n  diff\n  hide-
     fi
   } \
   git %{ evaluate-commands %sh{
+    cd_bufdir() {
+        dirname_buffer="${kak_buffile%/*}"
+        cd "${dirname_buffer}" 2>/dev/null || {
+            printf 'echo -markup {Error}Unable to change the current working directory to: %s' "${dirname_buffer}"
+            exit 1
+        }
+    }
+
     show_git_cmd_output() {
         local filetype
         case "$1" in
@@ -56,6 +64,7 @@ Available commands:\n  add\n  rm\n  blame\n  commit\n  checkout\n  diff\n  hide-
 
     run_git_blame() {
         (
+            cd_bufdir
             printf %s "evaluate-commands -client '$kak_client' %{
                       try %{ add-highlighter window/git-blame flag-lines Information git_blame_flags }
                       set-option buffer=$kak_bufname git_blame_flags '$kak_timestamp'
@@ -91,7 +100,9 @@ Available commands:\n  add\n  rm\n  blame\n  commit\n  checkout\n  diff\n  hide-
     }
 
     update_diff() {
-        ( cd "${kak_buffile%/*}" && git --no-pager diff -U0 "$kak_buffile" | perl -e '
+        (
+            cd_bufdir
+            git --no-pager diff -U0 "$kak_buffile" | perl -e '
             $flags = $ENV{"kak_timestamp"};
             foreach $line (<STDIN>) {
                 if ($line =~ /@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))?/) {