bash: Properly quote the GIT_DIR at all times to fix subdirectory paths with spaces

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 8f70e1efc11553ce2360fab8693e2749a3fc36b4..c29569c6247c346ceb409f72ff8e135929e11141 100755 (executable)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -70,22 +70,30 @@ __git_ps1 ()
                local b
                if [ -d "$g/../.dotest" ]
                then
-                       r="|AM/REBASE"
+                       if test -f "$g/../.dotest/rebasing"
+                       then
+                               r="|REBASE"
+                       elif test -f "$g/../.dotest/applying"
+                       then
+                               r="|AM"
+                       else
+                               r="|AM/REBASE"
+                       fi
                        b="$(git symbolic-ref HEAD 2>/dev/null)"
                elif [ -f "$g/.dotest-merge/interactive" ]
                then
                        r="|REBASE-i"
-                       b="$(cat $g/.dotest-merge/head-name)"
+                       b="$(cat "$g/.dotest-merge/head-name")"
                elif [ -d "$g/.dotest-merge" ]
                then
                        r="|REBASE-m"
-                       b="$(cat $g/.dotest-merge/head-name)"
+                       b="$(cat "$g/.dotest-merge/head-name")"
                elif [ -f "$g/MERGE_HEAD" ]
                then
                        r="|MERGING"
                        b="$(git symbolic-ref HEAD 2>/dev/null)"
                else
-                       if [ -f $g/BISECT_LOG ]
+                       if [ -f "$g/BISECT_LOG" ]
                        then
                                r="|BISECTING"
                        fi
@@ -93,7 +101,7 @@ __git_ps1 ()
                        then
                                if ! b="$(git describe --exact-match HEAD 2>/dev/null)"
                                then
-                                       b="$(cut -c1-7 $g/HEAD)..."
+                                       b="$(cut -c1-7 "$g/HEAD")..."
                                fi
                        fi
                fi
@@ -506,7 +514,33 @@ _git_bisect ()
 
 _git_branch ()
 {
-       __gitcomp "$(__git_refs)"
+       local i c=1 only_local_ref="n" has_r="n"
+
+       while [ $c -lt $COMP_CWORD ]; do
+               i="${COMP_WORDS[c]}"
+               case "$i" in
+               -d|-m)  only_local_ref="y" ;;
+               -r)     has_r="y" ;;
+               esac
+               c=$((++c))
+       done
+
+       case "${COMP_WORDS[COMP_CWORD]}" in
+       --*=*)  COMPREPLY=() ;;
+       --*)
+               __gitcomp "
+                       --color --no-color --verbose --abbrev= --no-abbrev
+                       --track --no-track
+                       "
+               ;;
+       *)
+               if [ $only_local_ref = "y" -a $has_r = "n" ]; then
+                       __gitcomp "$(__git_heads)"
+               else
+                       __gitcomp "$(__git_refs)"
+               fi
+               ;;
+       esac
 }
 
 _git_bundle ()