[PATCH 1/3] prompt: introduce GIT_PS1_STATESEPARATOR

[Ramkumar Ramachandra <artagnon@gmail.com>]

A typical prompt looks like:

    artagnon|master *=:~/src/git$
                   ^
                   why do we have this space?

Nobody has branch names that end with +, *, =, < or > anyway, so it
doesn't serve the purpose of disambiguation.

Make this separator configurable via GIT_PS1_STATESEPARATOR.  This means
that you can set it to "" and get this prompt:

    artagnon|master*=:~/src/git$

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
 contrib/completion/git-prompt.sh | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
index eaf5c36..5d8b745 100644
--- a/contrib/completion/git-prompt.sh
+++ b/contrib/completion/git-prompt.sh
@@ -359,6 +359,11 @@ __git_ps1 ()
 			fi
 		fi
 
+		local z=" "
+		if [ -n "${GIT_PS1_STATESEPARATOR+set}" ]; then
+			z="${GIT_PS1_STATESEPARATOR}"
+		fi
+
 		local f="$w$i$s$u"
 		if [ $pcmode = yes ]; then
 			local gitstring=
@@ -384,7 +389,7 @@ __git_ps1 ()
 				gitstring="\[$branch_color\]$branchstring\[$c_clear\]"
 
 				if [ -n "$w$i$s$u$r$p" ]; then
-					gitstring="$gitstring "
+					gitstring="$gitstring$z"
 				fi
 				if [ "$w" = "*" ]; then
 					gitstring="$gitstring\[$bad_color\]$w"
@@ -400,13 +405,13 @@ __git_ps1 ()
 				fi
 				gitstring="$gitstring\[$c_clear\]$r$p"
 			else
-				gitstring="$c${b##refs/heads/}${f:+ $f}$r$p"
+				gitstring="$c${b##refs/heads/}${f:+$z$f}$r$p"
 			fi
 			gitstring=$(printf -- "$printf_format" "$gitstring")
 			PS1="$ps1pc_start$gitstring$ps1pc_end"
 		else
 			# NO color option unless in PROMPT_COMMAND mode
-			printf -- "$printf_format" "$c${b##refs/heads/}${f:+ $f}$r$p"
+			printf -- "$printf_format" "$c${b##refs/heads/}${f:+$z$f}$r$p"
 		fi
 	fi
 }
-- 
1.8.3.rc1.57.g4ac1522