datalad.api.rev_status

datalad.api.rev_status(path=None, dataset=None, annex=None, untracked='normal', recursive=False, recursion_limit=None)

Report on the state of dataset content.

This is an analog to git status that is simultaneously crippled and more powerful. It is crippled, because it only supports a fraction of the functionality of its counter part and only distinguishes a subset of the states that Git knows about. But it is also more powerful as it can handle status reports for a whole hierarchy of datasets, with the ability to report on a subset of the content (selection of paths) across any number of datasets in the hierarchy.

Path conventions

All reports are guaranteed to use absolute paths that are underneath the given or detected reference dataset, regardless of whether query paths are given as absolute or relative paths (with respect to the working directory, or to the reference dataset, when such a dataset is given explicitly). Moreover, so-called “explicit relative paths” (i.e. paths that start with ‘.’ or ‘..’) are also supported, and are interpreted as relative paths with respect to the current working directory regardless of whether a reference dataset with specified.

When it is necessary to address a subdataset record in a superdataset without causing a status query for the state _within_ the subdataset itself, this can be achieved by explicitly providing a reference dataset and the path to the root of the subdataset like so:

datalad rev-status --dataset . subdspath

In contrast, when the state of the subdataset within the superdataset is not relevant, a status query for the content of the subdataset can be obtained by adding a trailing path separator to the query path (rsync-like syntax):

datalad rev-status --dataset . subdspath/

When both aspects are relevant (the state of the subdataset content and the state of the subdataset within the superdataset), both queries can be combined:

datalad rev-status --dataset . subdspath subdspath/

When performing a recursive status query, both status aspects of subdataset are always included in the report.

Content types

The following content types are distinguished:

  • ‘dataset’ – any top-level dataset, or any subdataset that is properly registered in superdataset
  • ‘directory’ – any directory that does not qualify for type ‘dataset’
  • ‘file’ – any file, or any symlink that is placeholder to an annexed file
  • ‘symlink’ – any symlink that is not used as a placeholder for an annexed file

Content states

The following content states are distinguished:

  • ‘clean’
  • ‘added’
  • ‘modified’
  • ‘deleted’
  • ‘untracked’
Parameters:
  • path (sequence of str or None, optional) – path to be evaluated. [Default: None]
  • dataset (Dataset or None, optional) – specify the dataset to query. If no dataset is given, an attempt is made to identify the dataset based on the current working directory. [Default: None]
  • annex ({None, 'basic', 'availability', 'all'}, optional) – Switch whether to include information on the annex content of individual files in the status report, such as recorded file size. By default no annex information is reported (faster). Three report modes are available: basic information like file size and key name (‘basic’); additionally test whether file content is present in the local annex (‘availability’; requires one or two additional file system stat calls, but does not call git-annex), this will add the result properties ‘has_content’ (boolean flag) and ‘objloc’ (absolute path to an existing annex object file); or ‘all’ which will report all available information (presently identical to ‘availability’). [Default: None]
  • untracked ({'no', 'normal', 'all'}, optional) – If and how untracked content is reported when comparing a revision to the state of the work tree. ‘no’: no untracked content is reported; ‘normal’: untracked files and entire untracked directories are reported as such; ‘all’: report individual files even in fully untracked directories. [Default: ‘normal’]
  • recursive (bool, optional) – if set, recurse into potential subdataset. [Default: False]
  • recursion_limit (int or None, optional) – limit recursion into subdataset to the given number of levels. [Default: None]
  • on_failure ({'ignore', 'continue', 'stop'}, optional) – behavior to perform on failure: ‘ignore’ any failure is reported, but does not cause an exception; ‘continue’ if any failure occurs an exception will be raised at the end, but processing other actions will continue for as long as possible; ‘stop’: processing will stop on first failure and an exception is raised. A failure is any result with status ‘impossible’ or ‘error’. Raised exception is an IncompleteResultsError that carries the result dictionaries of the failures in its failed attribute. [Default: ‘continue’]
  • proc_post – Like proc_pre, but procedures are executed after the main command has finished. [Default: None]
  • proc_pre – DataLad procedure to run prior to the main command. The argument a list of lists with procedure names and optional arguments. Procedures are called in the order their are given in this list. It is important to provide the respective target dataset to run a procedure on as the dataset argument of the main command. [Default: None]
  • result_filter (callable or None, optional) – if given, each to-be-returned status dictionary is passed to this callable, and is only returned if the callable’s return value does not evaluate to False or a ValueError exception is raised. If the given callable supports **kwargs it will additionally be passed the keyword arguments of the original API call. [Default: None]
  • result_renderer ({'default', 'json', 'json_pp', 'tailored'} or None, optional) – format of return value rendering on stdout. [Default: None]
  • result_xfm ({'datasets', 'paths', 'relpaths', 'successdatasets-or-none', 'metadata'} or callable or None, optional) – if given, each to-be-returned result status dictionary is passed to this callable, and its return value becomes the result instead. This is different from result_filter, as it can perform arbitrary transformation of the result value. This is mostly useful for top- level command invocations that need to provide the results in a particular format. Instead of a callable, a label for a pre-crafted result transformation can be given. [Default: None]
  • return_type ({'generator', 'list', 'item-or-list'}, optional) – return value behavior switch. If ‘item-or-list’ a single value is returned instead of a one-item return value list, or a list in case of multiple return values. None is return in case of an empty list. [Default: ‘list’]