style(libtofs.jinja): use Black-inspired Jinja formatting [skip ci]

* Automated using https://github.com/myii/ssf-formula/pull/237

prometheus/libtofs.jinja

@@ -1,40 +1,37 @@
-{%- macro files_switch(source_files,
+{%- macro files_switch(
+      source_files,
       lookup=None,
-                       default_files_switch=['id', 'os_family'],
+      default_files_switch=["id", "os_family"],
       indent_width=6,
-                       use_subpath=False) %}
+      use_subpath=False
+    ) %}
 {#-
     Returns a valid value for the "source" parameter of a "file.managed"
     state function. This makes easier the usage of the Template Override and
     Files Switch (TOFS) pattern.
-
     Params:
       * source_files: ordered list of files to look for
-      * lookup: key under '<tplroot>:tofs:source_files' to prepend to the
+      * lookup: key under "<tplroot>:tofs:source_files" to prepend to the
         list of source files
       * default_files_switch: if there's no config (e.g. pillar)
-        '<tplroot>:tofs:files_switch' this is the ordered list of grains to
+        "<tplroot>:tofs:files_switch" this is the ordered list of grains to
         use as selector switch of the directories under
         "<path_prefix>/files"
       * indent_width: indentation of the result value to conform to YAML
       * use_subpath: defaults to `False` but if set, lookup the source file
         recursively from the current state directory up to `tplroot`
-
     Example (based on a `tplroot` of `xxx`):
-
     If we have a state:
-
       Deploy configuration:
         file.managed:
           - name: /etc/yyy/zzz.conf
-          - source: {{ files_switch(['/etc/yyy/zzz.conf', '/etc/yyy/zzz.conf.jinja'],
+          - source: {{ files_switch(
-                                    lookup='Deploy configuration'
+                         ["/etc/yyy/zzz.conf", "/etc/yyy/zzz.conf.jinja"],
+                         lookup="Deploy configuration",
                        ) }}
           - template: jinja
-
     In a minion with id=theminion and os_family=RedHat, it's going to be
     rendered as:
-
       Deploy configuration:
         file.managed:
           - name: /etc/yyy/zzz.conf
@@ -48,48 +45,49 @@
           - template: jinja
 #}
 {#-   Get the `tplroot` from `tpldir` #}
-  {%- set tplroot = tpldir.split('/')[0] %}
+{%-   set tplroot = tpldir.split("/")[0] %}
-  {%- set path_prefix = salt['config.get'](tplroot ~ ':tofs:path_prefix', tplroot) %}
+{%-   set path_prefix = salt["config.get"](tplroot ~ ":tofs:path_prefix", tplroot) %}
-  {%- set files_dir = salt['config.get'](tplroot ~ ':tofs:dirs:files', 'files') %}
+{%-   set files_dir = salt["config.get"](tplroot ~ ":tofs:dirs:files", "files") %}
-  {%- set files_switch_list = salt['config.get'](
+{%-   set files_switch_list = salt["config.get"](
-      tplroot ~ ':tofs:files_switch',
+        tplroot ~ ":tofs:files_switch", default_files_switch
-      default_files_switch
       ) %}
 {#-   Lookup source_files (v2), files (v1), or fallback to an empty list #}
-  {%- set src_files = salt['config.get'](
+{%-   set src_files = salt["config.get"](
-      tplroot ~ ':tofs:source_files:' ~ lookup,
+        tplroot ~ ":tofs:source_files:" ~ lookup,
-      salt['config.get'](tplroot ~ ':tofs:files:' ~ lookup, [])
+        salt["config.get"](tplroot ~ ":tofs:files:" ~ lookup, []),
       ) %}
 {#-   Append the default source_files #}
 {%-   set src_files = src_files + source_files %}
-  {#- Only add to [''] when supporting older TOFS implementations #}
+{#-   Only add to [""] when supporting older TOFS implementations #}
-  {%- set path_prefix_exts = [''] %}
+{%-   set path_prefix_exts = [""] %}
 {%-   if use_subpath and tplroot != tpldir %}
 {#-     Walk directory tree to find {{ files_dir }} #}
-    {%- set subpath_parts = tpldir.lstrip(tplroot).lstrip('/').split('/') %}
+{%-     set subpath_parts = tpldir.lstrip(tplroot).lstrip("/").split("/") %}
 {%-     for path in subpath_parts %}
-      {%- set subpath = subpath_parts[0:loop.index] | join('/') %}
+{%-       set subpath = subpath_parts[0 : loop.index] | join("/") %}
-      {%- do path_prefix_exts.append('/' ~ subpath) %}
+{%-       do path_prefix_exts.append("/" ~ subpath) %}
 {%-     endfor %}
 {%-   endif %}
 {%-   for path_prefix_ext in path_prefix_exts | reverse %}
 {%-     set path_prefix_inc_ext = path_prefix ~ path_prefix_ext %}
 {#-     For older TOFS implementation, use `files_switch` from the config #}
 {#-     Use the default, new method otherwise #}
-    {%- set fsl = salt['config.get'](
+{%-     set fsl = salt["config.get"](
-        tplroot ~ path_prefix_ext|replace('/', ':') ~ ':files_switch',
+          tplroot ~ path_prefix_ext | replace("/", ":") ~ ":files_switch",
-        files_switch_list
+          files_switch_list,
         ) %}
 {#-     Append an empty value to evaluate as `default` in the loop below #}
-    {%- if '' not in fsl %}
+{%-     if "" not in fsl %}
-      {%- set fsl = fsl + [''] %}
+{%-       set fsl = fsl + [""] %}
 {%-     endif %}
 {%-     for fs in fsl %}
 {%-       for src_file in src_files %}
 {%-         if fs %}
-          {%- set fs_dirs = salt['config.get'](fs, fs) %}
+{%-           set fs_dirs = salt["config.get"](fs, fs) %}
 {%-         else %}
-          {%- set fs_dirs = salt['config.get'](tplroot ~ ':tofs:dirs:default', 'default') %}
+{%-           set fs_dirs = salt["config.get"](
+                tplroot ~ ":tofs:dirs:default", "default"
+              ) %}
 {%-         endif %}
 {#-         Force the `config.get` lookup result as a list where necessary #}
 {#-         since we need to also handle grains that are lists #}
@@ -97,13 +95,18 @@
 {%-           set fs_dirs = [fs_dirs] %}
 {%-         endif %}
 {%-         for fs_dir in fs_dirs %}
-          {%- set url = [
+{#-           strip empty elements by using a select #}
-              '- salt:/',
+{%-           set url = (
-              path_prefix_inc_ext.strip('/'),
+                [
-              files_dir.strip('/'),
+                  "- salt:/",
-              fs_dir.strip('/'),
+                  path_prefix_inc_ext.strip("/"),
-              src_file.strip('/'),
+                  files_dir.strip("/"),
-          ] | select | join('/') %}
+                  fs_dir.strip("/"),
+                  src_file.strip("/"),
+                ]
+                | select
+                | join("/")
+              ) %}
 {{ url | indent(indent_width, true) }}
 {%-         endfor %}
 {%-       endfor %}