Get rid exit(3)

diff --git a/vcsh b/vcsh
index d583dbc1a4ec1d0f8966fed25134f6f7aa497feb..daf8893cc0ad617b27b69b3e8e509627c2041361 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -58,7 +58,7 @@ init() {
        mkdir -p "$GIT_WORK_TREE"
        cd "$GIT_WORK_TREE" ||
                (echo "$SELF: fatal: could not enter $GIT_WORK_TREE" &&
-                exit 20) || exit 20
+                return 1) || return $?
        cd "$GIT_WORK_TREE"
        git init
        git config core.worktree     "$GIT_WORK_TREE"
@@ -114,10 +114,10 @@ do
        if [ ! -d "$check_directory" ]; then
                if [ -e "$check_directory" ]; then
                        echo "$SELF: error: $check_directory exists but is not a directory" >&2
-                       exit 2
+                       return 2
                else
                        echo "$SELF: info: attempting to create $check_directory"
-                       mkdir -p "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
+                       mkdir -p "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; return 2) || return $?
                fi
        fi
 done
@@ -138,9 +138,9 @@ if [ "$VCSH_COMMAND" = 'clone' ]; then
        [ "$VCSH_CONFLICT" = '1' ] &&
                echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
                echo "  Once this situation has been resolved, run 'vcsh run <foo> git pull' to finish cloning.\n" &&
-               exit 3
+               return 3
        git merge origin/master
-#      use || return 1
+#      use || return $?
        verbose "clone end"
 
 #elif [ "$VCSH_COMMAND" = 'help' ] || [ "$#" -eq 0 ]; then
@@ -151,7 +151,7 @@ elif [ "$VCSH_COMMAND" = 'delete' ]; then
        verbose "delete begin"
        old_dir="$PWD"
        cd "$HOME"
-       use || return 1
+       use || return $?
        echo "$SELF: info: This operation WILL DETROY DATA!"
        files=$(git ls-files)
        echo "These files will be deleted:
@@ -161,7 +161,7 @@ $files
 AGAIN, THIS WILL DELETE YOUR DATA!
 To continue, type \"Yes, do as I say\""
        read answer
-       [ "x$answer" = "xYes, do as I say" ] || exit
+       [ "x$answer" = "xYes, do as I say" ] || return 1
        for file in $files; do
                rm -f $file || echo "$SELF: info: could not delete '$file', continuing with deletion"
        done
@@ -183,7 +183,7 @@ To continue, type \"Yes, do as I say\""
 elif [ "$VCSH_COMMAND" = 'init' ]; then
        verbose "init begin"
        init
-#      use || return 1
+#      use || return $?
        verbose "init end"
 
 elif [ "$VCSH_COMMAND" = 'list' ]; then
@@ -195,14 +195,14 @@ elif [ "$VCSH_COMMAND" = 'list' ]; then
 
 elif [ "$VCSH_COMMAND" = 'run' ]; then
        verbose "run begin"
-       use || return 1
+       use || return $?
        $VCSH_EXTERNAL_COMMAND
        leave
        verbose "run end"
 
 elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
        verbose "seed-gitignore begin"
-       use || return 1
+       use || return $?
        # Switching directory as this has to be executed from $HOME to be of any use.
        # Going back into old directory at the end in case `vcsh use` is reactivated.
        old_dir="$PWD"
@@ -216,7 +216,7 @@ elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
                done;
        done | sort -u)
        tempfile=$(mktemp) ||
-               (echo "$SELF: fatal: could not create tempfile" && exit 1) 
+               (echo "$SELF: fatal: could not create tempfile" && return 1) || return $?
        echo '*' > "$tempfile"
        for gitignore in $gitignores; do
                echo "$gitignore" | sed 's/^/!/' >> "$tempfile"
@@ -228,10 +228,11 @@ elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
        if [ -e "$HOME/.gitignore.d/$VCSH_REPO_NAME" ]; then
                echo "$SELF: info: $HOME/.gitignore.d/$VCSH_REPO_NAME differs from new data, moving it to $HOME/.gitignore.d/$VCSH_REPO_NAME.bak"
                mv -f "$HOME/.gitignore.d/$VCSH_REPO_NAME" "$HOME/.gitignore.d/$VCSH_REPO_NAME.bak" ||
-                       (echo "$SELF: fatal: could not move $HOME/.gitignore.d/$VCSH_REPO_NAME to $HOME/.gitignore.d/$VCSH_REPO_NAME.bak" && exit 1)
+                       (echo "$SELF: fatal: could not move $HOME/.gitignore.d/$VCSH_REPO_NAME to $HOME/.gitignore.d/$VCSH_REPO_NAME.bak" &&
+                        return 1) || return $?
        fi
        mv -f "$tempfile" "$HOME/.gitignore.d/$VCSH_REPO_NAME" ||
-               (echo "$SELF: fatal: could not move $tempfile to $HOME/.gitignore.d/$VCSH_REPO_NAME" && exit 1)
+               (echo "$SELF: fatal: could not move $tempfile to $HOME/.gitignore.d/$VCSH_REPO_NAME" && return 1) || return $?
        cd "$old_dir"
        verbose "seed-gitignore end"
 
@@ -249,7 +250,7 @@ elif [ "$VCSH_COMMAND" = 'seed-gitignore' ]; then
 #              zle -N vcsh_exit
 #              bindkey '^d' 'vcsh_exit'
 #      fi
-#      use || return 1
+#      use || return $?
 #      [ -n "$ZSH_VERSION" ] && [ "$USER" = richih ] && buildPS1
 #      verbose "use end"
 
@@ -257,6 +258,6 @@ else
        verbose "defaulting to calling help()"
        help
        echo "$SELF: fatal: You should never reach this code. File a bug, please."
-       exit 99
+       return 99
 
 fi