# Changelog of Pmodules

## Version 1.1.12
* **modulecmd**
  * *User visible changes*
	* experimental support for Lmod
	* support for use flags has been removed.
          (A postfix like '_slurm' can still be used)

## Version 1.1.11
* **modulecmd**
  * *User visible changes*
	* Improved error handling and messages
	* Python support added
  * *Internal changes and fixes*
	* Bugfixes

* **build-system**
  * *User visible changes*
    * building with legacy variants files fixed.
    * building with YAML config files is still experimental
      and not recommended for now

## Version 1.1.10 
* **modulecmd**
  * *User visible changes*
    * New options for `module search`.
	  * With the option `--group` the search can be restricted to a
	    group.
	  * With the option `--newest` only the newest versions are
        displayed.
	* `find` as alias for the sub-command `search` added.
	* Bugfix: the sub-commands `whatis` and `keyword|apropos` were
        broken by design. 
    * Bugfix: after loading a `Pmodules` module, it was not shown with
      `module list`.
	* Bugfix in scanning the depth of groups.
	* Bugfix: after `module purge` the environment variable
      `PMODULES_HOME` was not defined an more.
    * Bugfix: source the shell init file only if a `Pmodules` module
      is loaded.
	* Bugfix: unsetting aliases in modulefiles was not handled
      properly in `module purge`
  * *Internal changes and fixes*
    * initialisation error for bash and zsh fixed

* **build-system**
  * *User visible changes*
    * `modbuild` is now defined as function like `module`. Therefor no
	`Pmodules` module must be loaded to build a module with `modbuild`
	* The system can now be defined in the module (YAML) configuration
      file.
	* Build dependencies can (and should) now be specified with
      `build_requires` in the YAML configuration file.
	* Bugfix: cleanup of modulefiles in overlays fixed. A module can be in
      more than one overlay. These overlays must be specified in the
      module configuration file. 
	* Bugfix: querying dependencies from YAML configuration file
      fixed. Under some conditions the string 'null' was in the list
      of dependencies.
	* Bugfix: create group directory if it doesn't exist.
	* Bugfix: create the module `$PREFIX` before processing the
      install targets not before all targets. If `$PREFIX` is created
      before processing any target and the build fails, `modbuild`
      assumes that the module have been already built successfully.
 * *Internal changes and fixes*
    * code review/re-factoring
	* `modbuild` is now using the Bash installed in `Pmodules` itself.
	* test code with `set -o nounset`, several issues with this
      setting fixed (not necessarily bugs).

* **other changes**
 * The build script to bootstrap Pmodules itself doesn't use modbuild
   any more to compile required software packages.  With this change
   we can remove some special cases from modbuild.
 * The bootstrap script requires Bash 5.0 or newer now.
 * Bugfix: in the `Pmodules` modulefile force the sourcing of the
   shell init script while in mode `load` only.

## Version 1.1.9
* **modulecmd**
  * *User visible changes*
    * Overlay info added to output of sub-command `search`.
    * Output of `module search --verbose` revised for better readability.
  * *Internal changes and fixes*
    * The shell`s init file is sourced, when Pmodules is loaded as module.
      This is required if there are changes in the module function or too
      define new shell functions.
    * A bug in `libmodules.tcl:module-addgroup()` which crashed 
      `module load ...` has been fixed.
    * In versions before 1.1.9 a colon at the beginning or end of `MODULEPATH`
      crashed the module function. This has been fixed. 

* **build-system**
  * *User visible changes*
    * The command `modbuild` is now defined as shell function analog to
      the `module` command. The main reason to introduce this function
      is due to the fact that Bash version 5 or newer is now required
      by `modbuild`. The function `modbuild` load Bash 5.x as module
      before calling the modbuild-script. If you want to use the script
      directly, a Bash binary with version 5.x must be in PATH.
    * If a build-script is in the current working directory,
      `modbuild` can now be called without specifying the build-script.
    * In case of an error in a build-step the build process did not 
      abort as it should. This has been fixed.
    * The option `--overlay` can now be used
	  - to define an overlay if legacy variants files are used
	  - to override the overlay in a YAML variants file.
    * The new keyword `with` has been introduced in YAML variants file
      to specified hierarchical dependencies.
    * The function `pbuild::supported_os` has been
      removed. `pbuild::supported_systems` provides the same
      functionality for legacy configuration files. In YAML module
      configuration files `systems` have to be used.

* **Internal changes and fixes**
    * bugfix in setting `PATH`
    * requires bash 5 or later

## Version 1.1.8
* **modulecmd**
  * *User visible changes*
    * configuration in YAML files
    * modulefiles and software must not
      have a common root directory
    * the installation root must be specified, it doesn`t default
      to the base 'overlay' any more.
    * zsh initialisation fixed.
  * *Internal changes and fixes*
    * std::upvar() replaced with reference variables in part of the 
      code.
    * environment variable `PMODULES_ROOT` removed.
    * unsetting aliases fixed.
    * update to bash 5.1.16
    * update to findutils 4.9 (macOS only)
    * minor fixes
* **build-system**
  * *User visible changes*
    * YAML format for variants files
  * *Internal changes and fixes*
    * use lib `libpmodules.bash`
    * bugfixes
* **modmanage**
  * *User visible changes*
    * none, support for overlays still missing
  * *Internal changes and fixes*
    * none

## Version 1.1.7
* **modulecmd**
  * list of available overlays in subcommand `use` is now better readable
* **buid-system**
  * overlay definition must now be in YAML format
  * support for YAML formatted variant files (the legacy format 
    is still supported)
  * build-system in 1.1.6 was still work in progress and broken

## Version 1.1.6
* **modulecmd**
  * bugfix in searching/loading modules in a hierarchical
    group

## Version 1.1.5
* first public version with the overlay feature

## Version 1.0.0rc11
* **modulecmd**
  * *User visible changes*
    * handling of set-alias in modulefile fixed
  * *Internal changes and fixes*
    * none
* **build-system**
  * *User visible changes*
    * none
  * *Internal changes and fixes*
    * none

## Version 1.0.0rc10
* **modulecmd**
  * *User visible changes*
    * The term "releases" has been replaced with "release stages". 
      The visible changes are the change of the option 
      `--all-releases` to `--all-release-stages`, adapted
      help text and configuration files.
    * New configuration file `Pmodules.conf` to configure the 
      default visible group, the default visible release stages
      and the defined releases stages. These information has
      been stripped from the profiles `profiles.{bash,csh,zsh}`.
    * module are now sorted numerically in output of
      `module avail`.
    * option `-?` added as alias for `--help`.
    * new option `--glob` for `module search`. This enables 
      shell glob-pattern searches.
  * *Internal changes and fixes*
    * bugfix in removing temp-file in exit function.
    * terse output of `module avail` fixed.
    * broken help for sub-commands fixed.
    * missing group in output of `module avail` fixed.
    * broken output of `module search --print-modulefiles` fixed.
    * argument handling fixed after `--`.
    * cleanup option/argument handling.
* **build-system**
  * *User visible changes*
    * none
  * *Internal changes and fixes*
    * bugfixes in the functions `pbuild::version_{le,gt}
    * bugfix in recognising newer CentOS versions
* **modmanage**
  * *User visible changes*
    * complete re-implementation of (broken) modmanage

## Version 1.0.0rc9
* **modulecmd**
  * *User visible changes*
    * a Pmodules module must be the first module loaded
    * new option `--group|-g GROUP` to list available modules in `GROUP`
    * align columns in output of `module avail`
    * remove path to Pmodules bin directory while unloading a Pmodules module
    * exclude a Pmodules module from being purged 
    * follow sym-links in `ROOT/GROUP/modulefiles`
  * *Internal changes and fixes*
    * use default field separator by unsetting `IFS`
    * use read-only variables for all used commands with full path  
    * better tmp-file creation/deletion
    * more bugfixes
* **build-system**
  * *User visible changes*
    * group hierarchy can now be defined in a config file
  * *Internal changes and fixes*
    * more bugfixes

## Version 1.0.0rc8
* **modulecmd**
  * *User visible changes*
    * Pmodules can now be loaded as module
    * Since `${PMODULES_HOME}/bin` has been removed from `PATH` in `1.0.0rc7` a Pmodules
      module must be loaded to make the build system available.
  * *Internal changes and fixes*
    * use system binaries in `/bin:/usr/bin` if possible

## Version 1.0.0rc7

* **modulecmd**
  * *User visible changes*
    * add options to `module search` to show dependencies
  * *Internal changes and fixes*
    * hardcoded path in `profile.csh`fixed
    * bugfixes
    * Update to BASH 5.1
    * Update to Tcl 8.6.10
* **build-system**
  * *User visible changes*
    * building deprecated modules must be forced
    * support for versioned modulefiles in build-blocks: if a modulefile 
      `modulefile-X[.Y[.Z]]` exists in the build-block it will be taken
      in favour of `modulefile`-
    * bootstrap/build script reviewed, `--config` option removed, help for all  
      sub-commands added
  * *Internal changes and fixes*
    * installation of fallback shared libraries fixed.
    * bugfixes
* **modmanage**
  * *User visible changes*
    * Support of run-time dependencies which are required but must not be loaded

## Version 1.0.0rc6

**Added features:**

- Support for shell `sh` added (#86, #90).
- Support added for a wildcard (`.*`) version as argument to `modbuild` (#78)

**Fixed bugs:**

- Handle empty list of be installed shared libraries fixed (#89).
- Broken 'module load'  with (T)CSH fixed (#88).
- prepend instead of append Pmodules bin directory to `PATH` (#87).
- Bugs in bootstrapping Pmodules fixed (#82)


## Version 1.0.0rc5 (since 1.0.0rc2)

**Added features:**

- log `module load` commands to system logger (#80)


**Changed:**

- The argument passed with the `--system` is not any more a synonym for kernel of the system a build process is running on. It now defines a target operating system like RHEL6, macOS1014 etc (#72).


**Deprecated:**

- calling `pbuild::make_all` in a build-script is now deprecate

**Fixed bugs:**

- Bugs fixed in printing load hints (#48, #49)
- Several bugs in build-systen and `modulecmd` fixed.
- `--with` option of sub-command search now accepts a comma separated list of strings
- `PMODULES_ENV` is exported only on content changes


## 1.0.0rc4
  - never tagged
  
## 1.0.0rc3
  - never tagged