completion: normalize increment/decrement style

The style used for incrementing and decrementing variables was fairly
inconsistenty and was normalized to use x++, or ((x++)) in contexts
where the former would otherwise be interpreted as a command. This is a
bash-ism, but for obvious reasons this script is already bash-specific.

Signed-off-by: Philip Jägenstedt <philip@foolip.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index c2915177b10ed87af4a28f1bb1afe19c3c29e93a..03f0b8c1956c6a590318ab1616fc67c66dc7c03b 100755 (executable)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -137,7 +137,7 @@ __git_ps1_show_upstream ()
                        svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}
                        svn_upstream=${svn_upstream%@*}
                        local n_stop="${#svn_remote[@]}"
-                       for ((n=1; n <= n_stop; ++n)); do
+                       for ((n=1; n <= n_stop; n++)); do
                                svn_upstream=${svn_upstream#${svn_remote[$n]}}
                        done
 
@@ -166,10 +166,8 @@ __git_ps1_show_upstream ()
                        for commit in $commits
                        do
                                case "$commit" in
-                               "<"*) let ++behind
-                                       ;;
-                               *)    let ++ahead
-                                       ;;
+                               "<"*) ((behind++)) ;;
+                               *)    ((ahead++))  ;;
                                esac
                        done
                        count="$behind  $ahead"
@@ -727,7 +725,7 @@ __git_complete_remote_or_refspec ()
        local cur_="$cur" cmd="${words[1]}"
        local i c=2 remote="" pfx="" lhs=1 no_complete_refspec=0
        if [ "$cmd" = "remote" ]; then
-               c=$((++c))
+               ((c++))
        fi
        while [ $c -lt $cword ]; do
                i="${words[c]}"
@@ -746,7 +744,7 @@ __git_complete_remote_or_refspec ()
                -*) ;;
                *) remote="$i"; break ;;
                esac
-               c=$((++c))
+               ((c++))
        done
        if [ -z "$remote" ]; then
                __gitcomp_nl "$(__git_remotes)"
@@ -986,7 +984,7 @@ __git_find_on_cmdline ()
                                return
                        fi
                done
-               c=$((++c))
+               ((c++))
        done
 }
 
@@ -997,7 +995,7 @@ __git_has_doubledash ()
                if [ "--" = "${words[c]}" ]; then
                        return 0
                fi
-               c=$((++c))
+               ((c++))
        done
        return 1
 }
@@ -1120,7 +1118,7 @@ _git_branch ()
                -d|-m)  only_local_ref="y" ;;
                -r)     has_r="y" ;;
                esac
-               c=$((++c))
+               ((c++))
        done
 
        case "$cur" in
@@ -2574,7 +2572,7 @@ _git_tag ()
                        f=1
                        ;;
                esac
-               c=$((++c))
+               ((c++))
        done
 
        case "$prev" in
@@ -2627,7 +2625,7 @@ _git ()
                --help) command="help"; break ;;
                *) command="$i"; break ;;
                esac
-               c=$((++c))
+               ((c++))
        done
 
        if [ -z "$command" ]; then