Added rudimentary INSTALL file

[code/vcsh.git] / vcsh

diff --git a/vcsh b/vcsh
index 0bf5a1408bfab5d2f51f6abfacd2c0d0265a255d..c4423fdb1ae72fd8b27166643d1bd9ea98731f7b 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -3,7 +3,20 @@
 #set -x
 
 SELF=$(basename $0)
+
 [ -z $XDG_CONFIG_HOME ] && XDG_CONFIG_HOME="$HOME/.config"
+for check_directory in $XDG_CONFIG_HOME $XDG_CONFIG_HOME/vcsh $XDG_CONFIG_HOME/vcsh/repo.d
+do
+       if [ ! -d $check_directory ]; then
+               if [ -e $check_directory ]; then
+                       echo "$SELF: error: $check_directory exists but is not a directory" >&2
+                       exit 2
+               else
+                       mkdir $check_directory || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
+               fi
+       fi
+done
+
 VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d"
 
 help() {
@@ -40,12 +53,12 @@ use() {
 
 init() {
        [[ -e $GIT_DIR ]] &&
-               echo "$(basename $0): fatal: $GIT_DIR exists" &&
+               echo "$SELF: fatal: $GIT_DIR exists" &&
                return 21
        export GIT_WORK_TREE="$HOME"
        mkdir -p $GIT_WORK_TREE
        cd $GIT_WORK_TREE ||
-               (echo "$(basename $0): fatal: could not enter $GIT_WORK_TREE" &&
+               (echo "$SELF: fatal: could not enter $GIT_WORK_TREE" &&
                 exit 20) || exit 20
        cd $GIT_WORK_TREE
        git init
@@ -61,35 +74,40 @@ leave() {
 if [ "$1" = 'help' ] || [ $# -eq 0 ]; then
        help
        [ "$1" = 'help' ]
-       return $?
+       exit $?
 
 elif [ "$1" = 'list' ]; then
        for i in $VCSH_BASE/*.git; do
                echo $(basename $i .git)
        done
-       return 0
+       exit 0
 
 elif [ "$1" = 'run' ]; then
        use $2
        shift 2
        "$@"
        leave
-       return 0
+       exit 0
 
 elif [ "$1" = 'use' ]; then
        if [[ -o NO_IGNORE_EOF ]]; then
                export VCSH_NO_IGNORE_EOF=1
                setopt IGNORE_EOF
-               vcsh_exit() {vcsh exit; zle reset-prompt}
+               if [[ -n $ZSH_VERSION ]]; then
+                       vcsh_exit() {
+                               vcsh exit;
+                               zle reset-prompt;
+                       }
+               fi
                zle -N vcsh_exit
                bindkey '^d' 'vcsh_exit'
        fi
        use $2
        buildPS1
-       return 0
+       exit 0
 
 elif [ "$1" = 'clone' ]; then
-       export GIT_REMOTE="$2"
+       GIT_REMOTE="$2"
        REPO_NAME="$3"
        [[ -z $REPO_NAME ]] && REPO_NAME=$(basename $GIT_REMOTE .git)
        export REPO_NAME
@@ -102,11 +120,11 @@ elif [ "$1" = 'clone' ]; then
        git fetch
        for i in $(git ls-tree -r origin/master | awk '{print $4}'); do
        [[ -e $i ]] &&
-               echo "$(basename $0): error: $i exists." &&
+               echo "$SELF: error: $i exists." &&
                CONFLICT=1;
        done
        [[ -n $CONFLICT ]] &&
-               echo "$(basename $0): fatal: will stop after fetching and not try to merge!\n" &&
+               echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
                exit 3
        git merge origin/master
        vcsh use $REPO_NAME
@@ -124,11 +142,11 @@ elif [ "$1" = 'exit' ]; then
        fi
        leave
        buildPS1
-       return 0
+       exit 0
 
 else
        help
-       return 3
+       exit 3
 
 fi