Differenciate 'safe' and 'unsafe' commands

Safe are in the system path
Unsafe are elsewhere (maybe in /opt or $HOME/{bin,.local/bib}, etc)

stpkg

@@ -239,6 +239,7 @@ __install() {
     # Create the ~/config/stpkg.sh
     [ ! -d ~/config ] && mkdir ~/config
 cat > $STPKG_CONF_FILE << EOF
+# Please, only modify the 'STPKG_TOKEN'
 if [ ! "x\$INSTALL" = "xyes" ]; then
 STPKG_BASE="$BASE_DIR"
 STPKG_HOMESERV='matrix.org'
@@ -263,10 +264,14 @@ STPKG_INSTALL="$STPKG_INSTALL"
 SSHFS_USER="$SSHFS"
 SSHFS_MNT="`echo "$MNT" | sed "s+$HOME+~+g"`"
 mountpoint $MNT >/dev/null 2>&1
-if [ \$? -ne 0 -a ! "x\$INSTALL" = "xyes" ]; then
-[ ! -d "\$STPKG_INSTALL" ] && { sshfs $SSHFS: $MNT || die "Failed to mount $SSHFS:~/ to $MNT"; }
-[ ! -d "\$STPKG_INSTALL" ] && die 'Failed to mount $SSHFS:~/ to $MNT, sshfs problems?'
-fi
+[ \$? -ne 0 -a ! "x\$INSTALL" = "xyes" ] && {
+    [ ! -d "\$STPKG_INSTALL" ] && {
+        sshfs $SSHFS: $MNT \
+            || die "Failed to mount $SSHFS:~/ to $MNT";
+    }
+    [ ! -d "\$STPKG_INSTALL" ] \
+        && die 'Failed to mount $SSHFS:~/ to $MNT, sshfs problems?'
+}
 EOF
 
         # Do the sshfs hook
@@ -320,10 +325,8 @@ if [ ! -d "$STPKG_INSTALL" ]; then
 fi
 info "Use STPKG_INSTALL: $STPKG_INSTALL`[ "x$STPKG_SSHFS" = "xyes" ] && echo ' (this is an sshfs install)'`"
 
-if [ "x$STPKG_BASE" = "x" ]; then
-    die "The STPKG_BASE env var is mendatory, it must point to the sticker repo." \
-        "It should have been given by the install script"
-fi
+[ "x$STPKG_BASE" = "x" ] && die \
+    "The STPKG_BASE env var is mendatory, it must point to the sticker repo. It should have been given by the install script"
 
 #########################
 # Cmd handler functions #
@@ -337,15 +340,18 @@ __show() {
     local REVISION=`expr $COMMITS - $REVISION`
     local BRANCH=`git -C $STPKG_BASE branch 2>&1 | grep --color=auto "\*" | sed -e "s/* //" -e "s/$/ /"`
 
-    ## SSHFS stuff
-    if [ "x$STPKG_SSHFS" = "xyes" ]; then
-cat << EOF
-`__bold stpkg with sshfs install:`
-    sshfs             `[ -d $STPKG_INSTALL ] && __green 'mounted' || __yellow 'umounted'`
-    user              $SSHFS_USER
-    mountpoint        $SSHFS_MNT
-EOF
-    fi
+    local SAFE=0
+    local UNSAFE=0
+    local UNSAFE_CMD=""
+    for CMD in $REQUIREMENTS; do
+        [[ "`which $CMD`" =~ ^(/usr/bin|/bin|/sbin|/usr/sbin) ]] \
+            && local SAFE=`expr $SAFE + 1` \
+            || {
+                local UNSAFE=`expr $UNSAFE + 1`
+                local UNSAFE_CMD="$CMD $UNSAFE_CMD"
+            }
+    done
+    [ $UNSAFE -gt 0 ] && local UNSAFE=`__yellow $UNSAFE` || local UNSAFE=`__green $UNSAFE`
 
     if [ "x$STPKG_TOKEN" = "x" ]; then
         local TOKEN=`__yellow 'absent' `
@@ -359,16 +365,22 @@ EOF
         local TOKEN="$TOKEN `__red "Sensitive data, I won't show it!"`"
     fi
 
+    ## SSHFS stuff
+    if [ "x$STPKG_SSHFS" = "xyes" ]; then
+cat << EOF
+`__bold stpkg with sshfs install:`
+    sshfs             `[ -d $STPKG_INSTALL ] && __green 'mounted' || { __yellow 'umounted'; echo " (should not be the case at this point)"; }`
+    user              $SSHFS_USER
+    mountpoint        $SSHFS_MNT
+EOF
+    fi
+
     ## Version stuff
 cat << EOF
 `__bold stpkg version:`
     branch            $BRANCH
     commits           $COMMITS
     revision          $REVISION
-EOF
-
-    ## Variable and commands stuff
-cat << EOF
 `__bold stpkg options and variables:`
     `__green STPKG_INSTALL`     `__italic $STPKG_INSTALL`
     `__green STPKG_BASE`        `__italic $STPKG_BASE`
@@ -377,12 +389,14 @@ cat << EOF
     `__green STPKG_HOMESERV`    `__italic $STPKG_HOMESERV`
     `__green STPKG_TOKEN`       $TOKEN
 `__bold aliased commands due to the '"require"' function:`
+    safe (system)     `__green $SAFE`
+    unsafe (user)     $UNSAFE
 EOF
-    for CMD in $REQUIREMENTS; do
-        echo -e " `__green $CMD` `which $CMD`"
-    done | sort | column -t | while IFS= read LINE; do
-        echo "    $LINE"
-    done
+    [ ! -z "$UNSAFE_CMD" ] && {
+        echo -ne '    '`__yellow unsafe commands`'   '
+        for CMD in $UNSAFE_CMD; do echo -n "$CMD "; done
+        echo ''
+    }
 }
 
 __update() {