mesh bp index partition map write/save (#1051)

* add write of mesh bp index partition pattern and partition map to write_mesh

* set bp idx part map for all meshes found

* add support for reading mesh bp with partition map

* update changelog

* add support and test for non-trival domain map case

* improve comments

* add single file test case for part map

* bp relay improve detection of root file format

* fix issue with leading slashs in has_path, and uultimately fix for load_mesh issues for non hdf5 protocols, along with new tests

* new example and sprial vs spiral spelling

CHANGELOG.md

@@ -14,6 +14,16 @@ and this project aspires to adhere to [Semantic Versioning](https://semver.org/s
 ### Changed
 #### General
 - Updated to BLT v0.5.2 
+- Changed `Schema::has_path()` (and transitively `Node::has_path()` ) to ignore leading `/`s.
+
+### Fixed
+
+#### Blueprint
+- Updated `conduit.relay.io.blueprint.{load_mesh|read_mesh}` to use improved logic to auto detect the format (hdf5 ,yaml, or json) of mesh blueprint root files.
+- Leading `/`s in mesh tree paths no longer undermine `conduit.relay.io.blueprint.{load_mesh|read_mesh}` reading json and yaml flavored files.
+
+#### Relay
+- Leading `/`s in tree paths no longer undermine io::IOHandle reads for conduit_bin, json, conduit_json, conduit_base64_json, and yaml flavored files.
 
 ## [0.8.4] - Released 2022-08-22
 
@@ -33,6 +43,8 @@ and this project aspires to adhere to [Semantic Versioning](https://semver.org/s
 - Added 1D mesh example support to `blueprint::mesh::examples::basic()`.
 - Added adjacency set aware generate functions (`genearte_points()`, etc) to the non-mpi blueprint library.
 - Added `generate_offsets_inline(Node &)` for cases where we want topology offsets created in an existing tree.
+- Added support to write and read per-mesh blueprint index entires with `partition_pattern` and `partition_map`.
+
 
 
 #### Relay

src/docs/sphinx/blueprint_mesh.rst

@@ -1312,7 +1312,7 @@ spiral
 
     Pseudocolor and Contour plots of the spiral example ``dist`` field.
 
-The ``sprial()`` function generates a multi-domain mesh composed of 2D square
+The ``spiral()`` function generates a multi-domain mesh composed of 2D square
 domains with the area of successive fibonacci numbers. The result estimates the
 `Golden spiral <https://en.wikipedia.org/wiki/Golden_spiral>`_.
 

src/libs/conduit/conduit_schema.cpp

@@ -1263,12 +1263,24 @@ Schema::has_path(const std::string &path) const
     if(m_dtype.id() != DataType::OBJECT_ID)
         return false;
 
+    std::string p_input;
+
+    // if there is a leading slash, we want to ignore
+    // so check for and adjust if we have this case
+    if(path.size() > 0 && path[0] == '/')
+    {
+        p_input = path.substr(1,path.size()-1);
+    }
+    else
+    {
+        p_input = path;
+    }
+
     std::string p_curr;
     std::string p_next;
-    utils::split_path(path,p_curr,p_next);
-    
+    utils::split_path(p_input,p_curr,p_next);
+
     // handle parent case (..)
-
     const std::map<std::string,index_t> &ents = object_map();
 
     if(ents.find(p_curr) == ents.end())