Code

git-commit.sh: Shell script cleanup
authorDavid Kastrup <dak@gnu.org>
Mon, 17 Sep 2007 20:56:44 +0000 (22:56 +0200)
committerJunio C Hamano <gitster@pobox.com>
Tue, 18 Sep 2007 21:58:24 +0000 (14:58 -0700)
This moves "shift" out of the argument processing "case".  It also
replaces quite a bit of expr calls with ${parameter#word} constructs,
and uses ${parameter:+word} for avoiding conditionals where possible.

Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-commit.sh

index bb113e858b73945a1c637024277415cc5ad8f436..3e46dbba7428f849fe30a639864955d92d87ef32 100755 (executable)
@@ -98,101 +98,71 @@ do
                no_edit=t
                log_given=t$log_given
                logfile="$1"
-               shift
                ;;
        -F*|-f*)
                no_edit=t
                log_given=t$log_given
-               logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
-               shift
+               logfile="${1#-[Ff]}"
                ;;
        --F=*|--f=*|--fi=*|--fil=*|--file=*)
                no_edit=t
                log_given=t$log_given
-               logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-               shift
+               logfile="${1#*=}"
                ;;
        -a|--a|--al|--all)
                all=t
-               shift
                ;;
        --au=*|--aut=*|--auth=*|--autho=*|--author=*)
-               force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-               shift
+               force_author="${1#*=}"
                ;;
        --au|--aut|--auth|--autho|--author)
                case "$#" in 1) usage ;; esac
                shift
                force_author="$1"
-               shift
                ;;
        -e|--e|--ed|--edi|--edit)
                edit_flag=t
-               shift
                ;;
        -i|--i|--in|--inc|--incl|--inclu|--includ|--include)
                also=t
-               shift
                ;;
        --int|--inte|--inter|--intera|--interac|--interact|--interacti|\
        --interactiv|--interactive)
                interactive=t
-               shift
                ;;
        -o|--o|--on|--onl|--only)
                only=t
-               shift
                ;;
        -m|--m|--me|--mes|--mess|--messa|--messag|--message)
                case "$#" in 1) usage ;; esac
                shift
                log_given=m$log_given
-               if test "$log_message" = ''
-               then
-                   log_message="$1"
-               else
-                   log_message="$log_message
+               log_message="${log_message:+${log_message}
 
-$1"
-               fi
+}$1"
                no_edit=t
-               shift
                ;;
        -m*)
                log_given=m$log_given
-               if test "$log_message" = ''
-               then
-                   log_message=`expr "z$1" : 'z-m\(.*\)'`
-               else
-                   log_message="$log_message
+               log_message="${log_message:+${log_message}
 
-`expr "z$1" : 'z-m\(.*\)'`"
-               fi
+}${1#-m}"
                no_edit=t
-               shift
                ;;
        --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
                log_given=m$log_given
-               if test "$log_message" = ''
-               then
-                   log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-               else
-                   log_message="$log_message
+               log_message="${log_message:+${log_message}
 
-`expr "z$1" : 'zq-[^=]*=\(.*\)'`"
-               fi
+}${1#*=}"
                no_edit=t
-               shift
                ;;
        -n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
        --no-verify)
                verify=
-               shift
                ;;
        --a|--am|--ame|--amen|--amend)
                amend=t
                use_commit=HEAD
-               shift
                ;;
        -c)
                case "$#" in 1) usage ;; esac
@@ -200,15 +170,13 @@ $1"
                log_given=t$log_given
                use_commit="$1"
                no_edit=
-               shift
                ;;
        --ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
        --reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
        --reedit-messag=*|--reedit-message=*)
                log_given=t$log_given
-               use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+               use_commit="${1#*=}"
                no_edit=
-               shift
                ;;
        --ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
        --reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
@@ -218,7 +186,6 @@ $1"
                log_given=t$log_given
                use_commit="$1"
                no_edit=
-               shift
                ;;
        -C)
                case "$#" in 1) usage ;; esac
@@ -226,15 +193,13 @@ $1"
                log_given=t$log_given
                use_commit="$1"
                no_edit=t
-               shift
                ;;
        --reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
        --reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
        --reuse-message=*)
                log_given=t$log_given
-               use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+               use_commit="${1#*=}"
                no_edit=t
-               shift
                ;;
        --reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
        --reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
@@ -243,32 +208,26 @@ $1"
                log_given=t$log_given
                use_commit="$1"
                no_edit=t
-               shift
                ;;
        -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
                signoff=t
-               shift
                ;;
        -t|--t|--te|--tem|--temp|--templ|--templa|--templat|--template)
                case "$#" in 1) usage ;; esac
                shift
                templatefile="$1"
                no_edit=
-               shift
                ;;
        -q|--q|--qu|--qui|--quie|--quiet)
                quiet=t
-               shift
                ;;
        -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
                verbose=t
-               shift
                ;;
        -u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
        --untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
        --untracked-file|--untracked-files)
                untracked_files=t
-               shift
                ;;
        --)
                shift
@@ -281,6 +240,7 @@ $1"
                break
                ;;
        esac
+       shift
 done
 case "$edit_flag" in t) no_edit= ;; esac
 
@@ -441,12 +401,8 @@ esac
 
 if test t = "$verify" && test -x "$GIT_DIR"/hooks/pre-commit
 then
-       if test "$TMP_INDEX"
-       then
-               GIT_INDEX_FILE="$TMP_INDEX" "$GIT_DIR"/hooks/pre-commit
-       else
-               GIT_INDEX_FILE="$USE_INDEX" "$GIT_DIR"/hooks/pre-commit
-       fi || exit
+    GIT_INDEX_FILE="${TMP_INDEX:-${USE_INDEX}}" "$GIT_DIR"/hooks/pre-commit \
+    || exit
 fi
 
 if test "$log_message" != ''