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Major updates to documentation
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- Switch theme to furo
- Use snakebids 1.0 syntax for BidsDataset
- Update code blocks with line numbers and highlighting
- Use literalincludes almost exclusively within tutorial to make
  maintenance easier
- Update non-tutorial documentation files to 1.0 syntax
- Add more links to attributes like zip_lists and path
- Update typing annotations within source code for more consistency, and
  to take advantage of auto-documentation.
- Add instructions to download example dataset
- Various formatting fixes
- Pin documentation dependencies
- Remove unused sphinx extensions
- Update package author list
- Fix version update regexes
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pvandyken committed Apr 7, 2023
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21 changes: 21 additions & 0 deletions docs/api.rst
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API
================



snakebids
---------

Expand All @@ -20,3 +22,22 @@ snakemake_io

.. automodule:: snakebids.utils.snakemake_io
:members:


cli
---

.. automodule:: snakebids.cli
:members:

exceptions
----------

.. automodule:: snakebids.exceptions
:members:

types
-----

.. automodule:: snakebids.types
:members:
21 changes: 12 additions & 9 deletions docs/bids_app/config.md
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@@ -1,3 +1,4 @@
{#bids-app-config}
Configuration
=============

Expand All @@ -10,9 +11,9 @@ Config Variables

A dictionary that describes each type of input you want to grab from an input BIDS dataset. Snakebids will parse your dataset with {func}`generate_inputs() <snakebids.generate_inputs>`, converting each input type into a {class}`BidsComponent <snakebids.BidsComponent>`. The value of each item should be a dictionary with keys ``filters`` and ``wildcards``.

The value of ``filters`` should be a dictionary where each key corresponds to a BIDS entity, and the value specifies which values of that entity should be grabbed. The dictionary for each input is sent to the [PyBIDS' get() function ](pybids:bids.layout.BIDSLayout). `filters` can be set according to a few different formats:
The value of ``filters`` should be a dictionary where each key corresponds to a BIDS entity, and the value specifies which values of that entity should be grabbed. The dictionary for each input is sent to the [PyBIDS' get() function ](#bids.layout.BIDSLayout). `filters` can be set according to a few different formats:

* [string](python:str): specifies an exact value for the entity. In the following example:
* [string](#str): specifies an exact value for the entity. In the following example:
```yaml
pybids_inputs:
bold:
Expand All @@ -21,11 +22,14 @@ The value of ``filters`` should be a dictionary where each key corresponds to a
extension: '.nii.gz'
datatype: 'func'
```
the bold component would match any paths under the `func/` datatype folder, with the suffix `bold` and the extension `.nii.gz`.

```
sub-xxx/.../func/ent1-xxx_ent2-xxx_..._bold.nii.gz
```
* [boolean](python:bool): constrains presence or absence of the entity without restricting its value. `False` requires that the entity be **absent**, while `True` requires that the entity be **present**, regardless of value.
* [boolean](#bool): constrains presence or absence of the entity without restricting its value. `False` requires that the entity be **absent**, while `True` requires that the entity be **present**, regardless of value.
```yaml
pybids_inputs:
derivs:
Expand All @@ -38,7 +42,7 @@ The value of ``filters`` should be a dictionary where each key corresponds to a

In addition, the special filter `regex_search` can be set to `true`, which causes all other filters in the component to use regex matching instead of exact matching.

The value of ``wildcards`` should be a list of BIDS entities. Snakebids collects the values of any entities specified and saves them in the {attr}`entities <snakebids.BidsComponent.entities>` and `zip_lists` entries of the corresponding {class}`BidsComponent <snakebids.BidsComponent>`. In other words, these are the entities to be preserved in output paths derived from the input being described. Placing an entity in `wildcards` does not require the entity be present. If an entity is not found, it will be left out of {attr}`entities <snakebids.BidsComponent.entities>`. To require the presence of an entity, place it under `filters` set to `true`.
The value of ``wildcards`` should be a list of BIDS entities. Snakebids collects the values of any entities specified and saves them in the {attr}`entities <snakebids.BidsComponent.entities>` and {attr}`~snakebids.BidsComponent.zip_lists` entries of the corresponding {class}`BidsComponent <snakebids.BidsComponent>`. In other words, these are the entities to be preserved in output paths derived from the input being described. Placing an entity in `wildcards` does not require the entity be present. If an entity is not found, it will be left out of {attr}`entities <snakebids.BidsComponent.entities>`. To require the presence of an entity, place it under `filters` set to `true`.

In the following (YAML-formatted) example, the ``bold`` input type is specified. BIDS files with the datatype ``func``, suffix ``bold``, and extension ``.nii.gz`` will be grabbed, and the ``subject``, ``session``, ``acquisition``, ``task``, and ``run`` entities of those files will be left as wildcards. The `task` entity must be present, but there must not be any `desc`.

Expand All @@ -61,24 +65,23 @@ pybids_inputs:
### `pybids_db_dir`

PyBIDS allows for the use of a cached layout to be used in order to reduce the time required to index a BIDS dataset. A path (if provided) to save the ``PyBIDS`` layout. If ``None`` or ``''`` is provided, the layout is not saved / used. The path provided must be absolute, otherwise the database will not be used. Note, this is a variable used for an opt-in feature and must first be uncommented in the ``snakebids.yml`` file.
PyBIDS allows for the use of a cached layout to be used in order to reduce the time required to index a BIDS dataset. A path (if provided) to save the *pybids* [layout](#bids.layout.BIDSLayout). If `None` or `''` is provided, the layout is not saved or used. The path provided must be absolute, otherwise the database will not be used.

### `pybids_db_reset`
A boolean determining whether the existing layout should be be updated. Default behaviour does not update the existing database if one is used. Note, this is a variable used for an opt-in feature and must first be uncommented in the ``snakebids.yml`` file.

A boolean determining whether the existing layout should be be updated. Default behaviour does not update the existing database if one is used.

### `analysis_levels`

A list of analysis levels in the BIDS app. Typically, this will include participant and/or group. Note that the default (YAML) configuration file expects this mapping to be identified with the anchor ``analysis_levels`` to be aliased by ``parse_args``.


### `targets_by_analysis_level`

A mapping from the name of each ``analysis_level`` to the list of rules or files to be run for that analysis level.


### `parse_args`

A dictionary of command-line parameters to make available as part of the BIDS app. Each item of the mapping is passed to [argparse's add_argument function](https://docs.python.org/3/library/argparse.html#the-add-argument-method). A number of default entries are present in a new snakebids project's config file that structure the BIDS app's CLI, but additional command-line arguments can be added as necessary.
A dictionary of command-line parameters to make available as part of the BIDS app. Each item of the mapping is passed to [argparse's add_argument function](#argparse.ArgumentParser.add_argument). A number of default entries are present in a new snakebids project's config file that structure the BIDS app's CLI, but additional command-line arguments can be added as necessary.


### `debug`
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57 changes: 57 additions & 0 deletions docs/bids_app/workflow.md
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Workflows
=========

Snakebids workflows are constructed the same way as any other [Snakemake workflows](inv:snakemake#snakefiles/rules), but with a few additions that make it easier to work with BIDS datasets.

To get access to these additions, the base Snakefile for a snakebids workflow should begin with the following boilerplate:

```python
import snakebids
from snakebids import bids

configfile: 'config/snakebids.yml'

# Get input wildcards
inputs = snakebids.generate_inputs(
bids_dir=config["bids_dir"],
pybids_inputs=config["pybids_inputs"],
pybids_database_dir=config.get("pybids_db_dir"),
pybids_reset_database=config.get("pybids_db_reset"),
derivatives=config.get("derivatives"),
participant_label=config.get("participant_label"),
exclude_participant_label=config.get("exclude_participant_label"),
use_bids_inputs=True,
)

```

Snakebids workflow features
---------------------------

The [](#snakebids.bids) function generates a properly-formatted BIDS filename with the specified entities, as documented in more detail elsewhere in this documentation.

[](#snakebids.generate_inputs) returns an instance of [](#snakebids.BidsDataset), a special <inv:*:*:class#dict> with keys mapping to the {class}`BidsComponents <snakebids.BidsComponent>` defined in [the config file](/bids_app/config). Each {class}`~snakebids.BidsComponent` contains a number of attributes to assist processing a BIDS dataset with snakemake. {func}`~snakebids.generate_inputs` should be called at the beginning of the workflow and assigned to a variable called `inputs`.

The {attr}`~snakebids.BidsComponent.path` member of {class}`~snakebids.BidsComponent` is generated by snakebids and contains a list of matched files for every input type. Often, the first rule to be invoked will use one or more entries in `inputs.path` as the input file specification.

The {attr}`~snakebids.BidsComponent.zip_lists` member of {class}`~snakebids.BidsComponent` is used with [`bids()`](#snakebids.bids) and [`expand()`](#snakefiles_expand) to fill the wildcards with corresponding values from input files. The usage pattern is as follows:

```py
expand(
bids(
root="results",
datatype="func",
suffix="bold.nii.gz",
**inputs.wildcards["bold"]
),
zip,
**inputs.zip_lists["bold"]
)
```

The {attr}`~snakebids.BidsComponent.wildcards` member of {class}`~snakebids.BidsComponent` is generated by snakebids and contains a dictionary mapping the wildcards for each input type to snakemake-formatted wildcards, for convenient use in the ``bids`` function.


## Accessing the underlying *pybids* dataset

In addition to mapping all of the {class}`BidsComponents <snakebids.BidsComponent>` to their names, {class}`~snakebids.BidsDataset` also has a {attr}`~snakebids.BidsDataset.layout` member which gives access to the underlying {class}`BIDSLayout <bids.layout.BIDSLayout>`. This can be used to access advanced pybids features not covered by `snakebids`. Note that if `custom_paths` are specified for every {class}`BidsComponent <snakebids.BidsComponent>`, pybids indexing will be skipped and {attr}`~snakebids.BidsDataset.layout` will be set to `None`. If your workflow relies on accessing this {attr}`~snakebids.BidsDataset.layout`, you must ensure your users do not provide a `custom_path` for every single component, either in the config file or [via the CLI](/running_snakebids/overview) (``--path_{component}``).
50 changes: 0 additions & 50 deletions docs/bids_app/workflow.rst

This file was deleted.

33 changes: 30 additions & 3 deletions docs/conf.py
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Expand Up @@ -9,6 +9,7 @@
# -- Path setup --------------------------------------------------------------

import datetime
import importlib.metadata as ilm

# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
Expand All @@ -21,7 +22,8 @@

# -- Project information -----------------------------------------------------

project = "snakebids"
project = "Snakebids"
release = ilm.version("snakebids")
copyright = f"{datetime.date.today().year}, Ali R. Khan"
author = "Ali R. Khan"

Expand All @@ -32,19 +34,36 @@
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
"sphinx_rtd_theme",
"sphinxarg.ext",
"sphinx.ext.intersphinx",
"sphinx.ext.napoleon",
"sphinx.ext.autodoc",
"sphinxcontrib.asciinema",
"myst_parser",
"sphinx_copybutton",
]


myst_enable_extensions = [
"attrs_block",
]
myst_enable_extensions = [
"attrs_block",
"attrs_inline",
"tasklist",
"deflist",
"fieldlist",
]
myst_number_code_blocks = ["python", "yaml"]


napoleon_google_docstring = False
napoleon_numpy_docstring = True

autodoc_member_order = "bysource"
autodoc_typehints = "description"
autosummary_imported_members = True


# Add any paths that contain templates here, relative to this directory.
templates_path = ["_templates"]
Expand All @@ -60,6 +79,7 @@
intersphinx_mapping = {
"pybids": ("https://bids-standard.github.io/pybids/", None),
"python": ("https://docs.python.org/3", None),
"snakemake": ("https://snakemake.readthedocs.io/en/stable/", None),
}


Expand All @@ -68,9 +88,16 @@
# The theme to use for HTML and HTML Help pages. See the documentation for
# a list of builtin themes.
#
html_theme = "sphinx_rtd_theme"
html_theme = "furo"

# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
html_static_path = ["_static"]
# templates_path = ["_templates"]

sphinxcontrib_asciinema_defaults = {
"preload": 1,
"rows": 24,
"speed": 3,
}
10 changes: 5 additions & 5 deletions docs/requirements.txt
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@@ -1,5 +1,5 @@
docutils<0.18
sphinx-argparse
sphinx_rtd_theme
sphinxcontrib-asciinema
myst-parser
sphinx-argparse>=0.4.0,<0.5
sphinxcontrib-asciinema>=0.3.7,<0.4
myst-parser>=1.0.0,<2.0
furo>=2023.3.23,<2024
sphinx_copybutton>=0.5.1,<0.6
2 changes: 0 additions & 2 deletions docs/running_snakebids/overview.md
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(running overview)=

Overview
========

Expand Down
10 changes: 4 additions & 6 deletions docs/tutorial/step0/Snakefile
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rule smooth:
input:
'../bids/sub-001/func/sub-001_task-rest_run-1_bold.nii.gz'
input:
'data/sub-001/func/sub-001_task-rest_run-1_bold.nii.gz'
params:
sigma = '2.12'
output:
output:
'results/sub-001/func/sub-001_task-rest_run-1_fwhm-5mm_bold.nii.gz'
shell:
shell:
'fslmaths {input} -s {params.sigma} {output}'

11 changes: 5 additions & 6 deletions docs/tutorial/step1/Snakefile
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@@ -1,10 +1,9 @@

rule smooth:
input:
'../bids/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
input:
'data/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
params:
sigma = '2.12'
output:
output:
'results/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_fwhm-5mm_bold.nii.gz'
shell: 'fslmaths {input} -s {params.sigma} {output}'

shell:
'fslmaths {input} -s {params.sigma} {output}'
12 changes: 5 additions & 7 deletions docs/tutorial/step2/Snakefile
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@@ -1,14 +1,12 @@

def calc_sigma_from_fwhm(wildcards):
return f'{float(wildcards.fwhm)/2.355:0.2f}'

rule smooth:
input:
'../bids/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
params:
input:
'data/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
params:
sigma = calc_sigma_from_fwhm
output:
output:
'results/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_fwhm-{fwhm}mm_bold.nii.gz'
shell:
shell:
'fslmaths {input} -s {params.sigma} {output}'

2 changes: 1 addition & 1 deletion docs/tutorial/step3/Snakefile
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Expand Up @@ -14,7 +14,7 @@ def calc_sigma_from_fwhm(wildcards):

rule smooth:
input:
'../bids/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
'data/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
params:
sigma = calc_sigma_from_fwhm,
output:
Expand Down
2 changes: 1 addition & 1 deletion docs/tutorial/step4/config.yml
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Expand Up @@ -15,4 +15,4 @@ fwhm:
- 20


in_bold: '../bids/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
in_bold: 'data/sub-{subject}/func/sub-{subject}_task-{task}_run-{run}_bold.nii.gz'
14 changes: 8 additions & 6 deletions docs/tutorial/step5/Snakefile
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Expand Up @@ -29,11 +29,13 @@ rule smooth:
params:
sigma = calc_sigma_from_fwhm
output:
bids(root='results',
subject='{subject}',
task='{task}',
run='{run}',
fwhm='{fwhm}',
suffix='bold.nii.gz')
bids(
root='results',
subject='{subject}',
task='{task}',
run='{run}',
fwhm='{fwhm}',
suffix='bold.nii.gz',
)
shell:
'fslmaths {input} -s {params.sigma} {output}'
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