Added mark tool for managing .by directory

Signed-off-by: Tony Tkacik <tonydamage@gmail.com>

bin/mark

@@ -0,0 +1,109 @@
+#!/usr/bin/env nuxr-nuxsh
+
+nux.use nuxfs
+
+MARK_DIR_NAME=.by
+MARK_PREFIX=""
+
+@namespace nuxfs. {
+  function :path.relative base target {
+    realpath -Lms --relative-to="$base" "$target"
+  }
+
+  function :path.display target {
+    echo $NC_LightPurple$(nuxfs.relative-to-pwd "$target")$NC_No
+  }
+
+  function :symlink target dir name {
+    relative=$(nuxfs.path.relative "$dir" "$target")
+    nux.log debug "Relative path is: $relative"
+    :stage mkdir -p "$dir"
+    if [ -n "$name" ]; then
+      :stage ln -sf "$relative" "$dir/$name"
+    else
+      :stage ln -sf "$relative" "$dir"
+    fi
+  }
+
+  function :stage {
+    if [ -n "$NUXFS_STAGE" ]; then
+      echo "[stage]" "$@"
+    else
+      "$@"
+    fi
+  }
+}
+
+## Manages symlinks in closest mark (**.by**) directory, provides functionality to batch create
+## them with relative paths.
+##
+## #Available tasks:
+@namespace mark. {
+  function :dir item {
+    if  [ -n "$MARK_DIR" ]; then
+      echo $MARK_DIR;
+    else
+      nuxfs.closest "$MARK_DIR_NAME" "$item"
+    fi
+  }
+
+  function :mark root item mark {
+    nuxfs.info "$item" Creating symlink in $(nuxfs.path.display "$root/$mark")
+    nuxfs.symlink "$item" "$root/$mark"
+  }
+
+
+}
+
+@namespace task. {
+
+##   tag:: <task> <task arguments...>
+##     Performs specified task in tag namespace (marks prefixed with **tag/**)
+  function :tag task {
+    MARK_PREFIX="tag/"
+    nuxr.run "$task" "$@"
+  }
+
+##   this:: <mark> [marks...]
+##     Marks **current folder** with specific markers.
+##     This creates symlinks in **mark** folder pointing to **current folder**.
+  function :this mark {
+    nux.log debug "Args $#"
+    item=$(pwd)
+    mark_root=$(mark.dir "$item")
+    mark.mark "$mark_root" "$item" "$MARK_PREFIX$mark"
+    while [ "$#" -gt 0 ]; do
+      mark="$1"; shift;
+      mark.mark "$mark_root" "$item" "$MARK_PREFIX$mark"
+    done
+  }
+
+##   multiple:: <mark> <files...>
+##     Marks **files** with specific **mark**.
+##     This creates symlinks for files in **mark** folder.
+  function :multiple mark {
+    mark_root=$(mark.dir "$pwd")
+    while [ "$#" -gt 0 ]; do
+      item="$1"; shift;
+      mark.mark "$mark_root" "$item" "$MARK_PREFIX$mark"
+    done
+  }
+
+##   display:: [mark]
+##     Displays path to current mark folder and displays available marks.
+##     If **mark** is provided list nested marks.
+  function :display mark {
+    mark_root=$(mark.dir $pwd)
+    prefix="$MARK_PREFIX"
+    if [ -n "$mark" ]; then
+      prefix="$MARK_PREFIX$mark/";
+    fi
+    echo $mark_root:
+    (
+      cd $(mark_root);
+      for mark in  "$prefix"* ; do
+        echo ${mark#$MARK_PREFIX};
+      done;
+    )
+  }
+}