netcdf-c/libsrc4
Dennis Heimbigner d953899559 Move to Version 2 NCZarr Extended Meta-Data
re: https://github.com/zarr-developers/zarr-specs/issues/41

After discussions with the Zarr community, it was decided to
convert to a new representation of the NCZarr meta-data extensions: version 2.
These extensions store information necessary to mapping the Zarr data model
to the netcdf-4 data model.

The basic change is to remove the NCZarr specific objects: .nczarr, .nczgroup, .nczarray, and .nczattr.
The contents of these objects is moved into the corresponding existing Zarr objects as special keys. The mapping is as follows:

* ''.nczarr'' => ''/.zgroup/_NCZARR_SUPERBLOCK_''
* ''.nczgroup => ''.zgroup/_NCZARR_GROUP_''
* ''.nczarray => ''.zarray/_NCZARR_ARRAY_''
* ''.nczattr => ''.zattr/_NCZARR_ATTR_''

Backward compatibility is maintained by looking for the object ''/.nczarr''
and if found, then assuming that the dataset is in the older version 1 format.
This compatibility only supports reading of such version 1 datasets.

Documentation and test cases are also added.

Misc. Other Changes:
1. The json parsing code was added to the general library instead of nczarr only (ncjson.c, ncjson.h).
2. Improved support for different platform paths by allowing conversion
   to a single common path representation.
3. Add some new error codes.
4. Modify nccopy usage to mention the new chunking specification.
2021-07-17 16:55:30 -06:00
..
CMakeLists.txt Ensure MPI header found without wrapper 2021-01-19 09:38:07 -07:00
error4.c Additional Fixes to NCZarr 2020-12-16 20:48:02 -07:00
Makefile.am Additional Fixes to NCZarr 2020-12-16 20:48:02 -07:00
nc4attr.c Spelling fixes 2019-09-18 08:03:01 -06:00
nc4cache.c Additional Fixes to NCZarr 2020-12-16 20:48:02 -07:00
nc4dim.c Regularize the scoping of dimensions 2021-05-31 15:51:12 -06:00
nc4dispatch.c Add support for multiple filters per variable. 2020-02-16 12:59:33 -07:00
nc4filters.c Mostly revert the filter code to reduce its complexity of use. 2020-09-27 12:43:46 -06:00
nc4grp.c Regularize the scoping of dimensions 2021-05-31 15:51:12 -06:00
nc4internal.c Move to Version 2 NCZarr Extended Meta-Data 2021-07-17 16:55:30 -06:00
nc4type.c Regularize the scoping of dimensions 2021-05-31 15:51:12 -06:00
nc4var.c LGTM cleanup 2021-04-24 21:44:57 -06:00
ncfunc.c Spelling fixes 2019-09-18 08:03:01 -06:00
ncindex.c Provide a Number of fixes/improvements to NCZarr 2020-11-19 17:01:04 -07:00