Implement UI for automation rules

media/css/core.css

@@ -1307,6 +1307,13 @@ div.module.project-subprojects li.subproject a.subproject-edit:before {
     content: "\f044";
 }
 
+/* Automation Rules */
+
+li.automation-rule input[type="submit"] {
+    font-family: FontAwesome;
+    font-weight: normal;
+}
+
 
 /* Pygments */
 div.highlight pre .hll { background-color: #ffffcc }

readthedocs/builds/constants.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """Constants for the builds app."""
 
 from django.conf import settings
@@ -37,16 +35,20 @@
 # Manager name for External Versions or Builds.
 # ie: Only pull request/merge request Versions and Builds.
 EXTERNAL = 'external'
+EXTERNAL_TEXT = _('External')
 
 BRANCH = 'branch'
+BRANCH_TEXT = _('Branch')
 TAG = 'tag'
+TAG_TEXT = _('Tag')
 UNKNOWN = 'unknown'
+UNKNOWN_TEXT = _('Unknown')
 
 VERSION_TYPES = (
-    (BRANCH, _('Branch')),
-    (TAG, _('Tag')),
-    (EXTERNAL, _('External')),
-    (UNKNOWN, _('Unknown')),
+    (BRANCH, BRANCH_TEXT),
+    (TAG, TAG_TEXT),
+    (EXTERNAL, EXTERNAL_TEXT),
+    (UNKNOWN, UNKNOWN_TEXT),
 )
 
 LATEST = settings.RTD_LATEST
@@ -101,3 +103,23 @@
 GITHUB_EXTERNAL_VERSION_NAME = 'Pull Request'
 GITLAB_EXTERNAL_VERSION_NAME = 'Merge Request'
 GENERIC_EXTERNAL_VERSION_NAME = 'External Version'
+
+
+# Automation rules
+
+ALL_VERSIONS = 'all-versions'
+ALL_VERSIONS_REGEX = r'.*'
+SEMVER_VERSIONS = 'semver-versions'
+SEMVER_VERSIONS_REGEX = r'^v?(\d+\.)(\d+\.)(\d+)(-.+)?$'
+
+
+PREDEFINED_MATCH_ARGS = (
+    (ALL_VERSIONS, _('Any version')),
+    (SEMVER_VERSIONS, _('SemVer versions')),
+    (None, _('Custom match')),
+)
+
+PREDEFINED_MATCH_ARGS_VALUES = {
+    ALL_VERSIONS: ALL_VERSIONS_REGEX,
+    SEMVER_VERSIONS: SEMVER_VERSIONS_REGEX,
+}

readthedocs/builds/forms.py

@@ -1,11 +1,19 @@
-# -*- coding: utf-8 -*-
-
 """Django forms for the builds app."""
 
+import re
+import textwrap
+
 from django import forms
 from django.utils.translation import ugettext_lazy as _
 
-from readthedocs.builds.models import Version
+from readthedocs.builds.constants import (
+    ALL_VERSIONS,
+    BRANCH,
+    BRANCH_TEXT,
+    TAG,
+    TAG_TEXT,
+)
+from readthedocs.builds.models import RegexAutomationRule, Version
 from readthedocs.core.mixins import HideProtectedLevelMixin
 from readthedocs.core.utils import trigger_build
 
@@ -37,3 +45,92 @@ def save(self, commit=True):
         if obj.active and not obj.built and not obj.uploaded:
             trigger_build(project=obj.project, version=obj)
         return obj
+
+
+class RegexAutomationRuleForm(forms.ModelForm):
+
+    match_arg = forms.CharField(
+        label='Custom match',
+        help_text=_(textwrap.dedent(
+            """
+            A
+            <a href="https://docs.readthedocs.io/page/automation-rules.html#user-defined-matches">
+                regular expression
+            </a>
+            to match the version.
+            """
+        )),
+        required=False,
+    )
+
+    class Meta:
+        model = RegexAutomationRule
+        fields = [
+            'description',
+            'predefined_match_arg',
+            'match_arg',
+            'version_type',
+            'action',
+        ]
+        # Don't pollute the UI with help texts
+        help_texts = {
+            'version_type': '',
+            'action': '',
+        }
+        labels = {
+            'predefined_match_arg': 'Match',
+        }
+
+    def __init__(self, *args, **kwargs):
+        self.project = kwargs.pop('project', None)
+        super().__init__(*args, **kwargs)
+
+        # Only list supported types
+        self.fields['version_type'].choices = [
+            (None, '-' * 9),
+            (BRANCH, BRANCH_TEXT),
+            (TAG, TAG_TEXT),
+        ]
+
+        if not self.instance.pk:
+            self.initial['predefined_match_arg'] = ALL_VERSIONS
+        # Allow users to start from the pattern of the predefined match
+        # if they want to use a custom one.
+        if self.instance.pk and self.instance.predefined_match_arg:
+            self.initial['match_arg'] = self.instance.get_match_arg()
+
+    def clean_match_arg(self):
+        """Check that a custom match was given if a predefined match wasn't used."""
+        match_arg = self.cleaned_data['match_arg']
+        predefined_match = self.cleaned_data['predefined_match_arg']
+        if predefined_match:
+            match_arg = ''
+        if not predefined_match and not match_arg:
+            raise forms.ValidationError(
+                _('Custom match should not be empty.'),
+            )
+
+        try:
+            re.compile(match_arg)
+        except Exception:
+            raise forms.ValidationError(
+                _('Invalid Python regular expression.'),
+            )
+        return match_arg
+
+    def save(self, commit=True):
+        if self.instance.pk:
+            rule = super().save(commit=commit)
+        else:
+            rule = RegexAutomationRule.objects.add_rule(
+                project=self.project,
+                description=self.cleaned_data['description'],
+                match_arg=self.cleaned_data['match_arg'],
+                predefined_match_arg=self.cleaned_data['predefined_match_arg'],
+                version_type=self.cleaned_data['version_type'],
+                action=self.cleaned_data['action'],
+            )
+        if not rule.description:
+            rule.description = rule.get_description()
+            rule.save()
+        return rule

readthedocs/builds/managers.py

@@ -195,7 +195,7 @@ class VersionAutomationRuleManager(PolymorphicManager):
 
     def add_rule(
         self, *, project, description, match_arg, version_type,
-        action, action_arg=None,
+        action, action_arg=None, predefined_match_arg=None,
     ):
         """
         Append an automation rule to `project`.
@@ -219,6 +219,7 @@ def add_rule(
             priority=priority,
             description=description,
             match_arg=match_arg,
+            predefined_match_arg=predefined_match_arg,
             version_type=version_type,
             action=action,
             action_arg=action_arg,

readthedocs/builds/migrations/0012_add-predefined-match-arg-field.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.25 on 2019-11-05 23:54
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('builds', '0011_version-media-availability'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='versionautomationrule',
+            name='predefined_match_arg',
+            field=models.CharField(blank=True, choices=[('all-versions', 'Any version'), ('semver-versions', 'SemVer versions'), (None, 'Custom match')], default=None, help_text='Match argument defined by us, it is used if is not None, otherwise match_arg will be used.', max_length=255, null=True, verbose_name='Predefined match argument'),
+        ),
+        migrations.AlterField(
+            model_name='versionautomationrule',
+            name='action',
+            field=models.CharField(choices=[('activate-version', 'Activate version'), ('set-default-version', 'Set version as default')], help_text='Action to apply to matching versions', max_length=32, verbose_name='Action'),
+        ),
+        migrations.AlterField(
+            model_name='versionautomationrule',
+            name='version_type',
+            field=models.CharField(choices=[('branch', 'Branch'), ('tag', 'Tag'), ('external', 'External'), ('unknown', 'Unknown')], help_text='Type of version the rule should be applied to', max_length=32, verbose_name='Version type'),
+        ),
+    ]

readthedocs/builds/models.py

@@ -31,6 +31,8 @@
     INTERNAL,
     LATEST,
     NON_REPOSITORY_VERSIONS,
+    PREDEFINED_MATCH_ARGS,
+    PREDEFINED_MATCH_ARGS_VALUES,
     STABLE,
     TAG,
     VERSION_TYPES,
@@ -77,7 +79,6 @@
 from readthedocs.projects.models import APIProject, Project
 from readthedocs.projects.version_handling import determine_stable_version
 
-
 log = logging.getLogger(__name__)
 
 
@@ -953,8 +954,8 @@ class VersionAutomationRule(PolymorphicModel, TimeStampedModel):
     ACTIVATE_VERSION_ACTION = 'activate-version'
     SET_DEFAULT_VERSION_ACTION = 'set-default-version'
     ACTIONS = (
-        (ACTIVATE_VERSION_ACTION, _('Activate version on match')),
-        (SET_DEFAULT_VERSION_ACTION, _('Set as default version on match')),
+        (ACTIVATE_VERSION_ACTION, _('Activate version')),
+        (SET_DEFAULT_VERSION_ACTION, _('Set version as default')),
     )
 
     project = models.ForeignKey(
@@ -977,8 +978,21 @@ class VersionAutomationRule(PolymorphicModel, TimeStampedModel):
         help_text=_('Value used for the rule to match the version'),
         max_length=255,
     )
+    predefined_match_arg = models.CharField(
+        _('Predefined match argument'),
+        help_text=_(
+            'Match argument defined by us, it is used if is not None, '
+            'otherwise match_arg will be used.'
+        ),
+        max_length=255,
+        choices=PREDEFINED_MATCH_ARGS,
+        null=True,
+        blank=True,
+        default=None,
+    )
     action = models.CharField(
         _('Action'),
+        help_text=_('Action to apply to matching versions'),
         max_length=32,
         choices=ACTIONS,
     )
@@ -991,6 +1005,7 @@ class VersionAutomationRule(PolymorphicModel, TimeStampedModel):
     )
     version_type = models.CharField(
         _('Version type'),
+        help_text=_('Type of version the rule should be applied to'),
         max_length=32,
         choices=VERSION_TYPES,
     )
@@ -1001,6 +1016,13 @@ class Meta:
         unique_together = (('project', 'priority'),)
         ordering = ('priority', '-modified', '-created')
 
+    def get_match_arg(self):
+        """Get the match arg defined for `predefined_match_arg` or the match from user."""
+        match_arg = PREDEFINED_MATCH_ARGS_VALUES.get(
+            self.predefined_match_arg,
+        )
+        return match_arg or self.match_arg
+
     def run(self, version, *args, **kwargs):
         """
         Run an action if `version` matches the rule.
@@ -1009,7 +1031,7 @@ def run(self, version, *args, **kwargs):
         :returns: True if the action was performed
         """
         if version.type == self.version_type:
-            match, result = self.match(version, self.match_arg)
+            match, result = self.match(version, self.get_match_arg())
             if match:
                 self.apply_action(version, result)
                 return True
@@ -1126,6 +1148,9 @@ def get_description(self):
             return self.description
         return f'{self.get_action_display()}'
 
+    def get_edit_url(self):
+        raise NotImplementedError
+
     def __str__(self):
         class_name = self.__class__.__name__
         return (
@@ -1154,3 +1179,9 @@ def match(self, version, match_arg):
         except Exception as e:
             log.info('Error parsing regex: %s', e)
             return False, None
+
+    def get_edit_url(self):
+        return reverse(
+            'projects_automation_rule_regex_edit',
+            args=[self.project.slug, self.pk],
+        )

readthedocs/projects/urls/private.py

@@ -8,6 +8,9 @@
 from readthedocs.projects.backends.views import ImportDemoView, ImportWizardView
 from readthedocs.projects.views import private
 from readthedocs.projects.views.private import (
+    AutomationRuleDelete,
+    AutomationRuleList,
+    AutomationRuleMove,
     DomainCreate,
     DomainDelete,
     DomainList,
@@ -38,6 +41,8 @@
     ProjectUsersDelete,
     ProjectVersionDeleteHTML,
     ProjectVersionDetail,
+    RegexAutomationRuleCreate,
+    RegexAutomationRuleUpdate,
     SearchAnalytics,
 )
 
@@ -293,3 +298,33 @@
 ]
 
 urlpatterns += environmentvariable_urls
+
+automation_rule_urls = [
+    url(
+        r'^(?P<project_slug>[-\w]+)/rules/$',
+        AutomationRuleList.as_view(),
+        name='projects_automation_rule_list',
+    ),
+    url(
+        r'^(?P<project_slug>[-\w]+)/rules/(?P<automation_rule_pk>[-\w]+)/move/(?P<steps>-?\d+)/$',
+        AutomationRuleMove.as_view(),
+        name='projects_automation_rule_move',
+    ),
+    url(
+        r'^(?P<project_slug>[-\w]+)/rules/(?P<automation_rule_pk>[-\w]+)/delete/$',
+        AutomationRuleDelete.as_view(),
+        name='projects_automation_rule_delete',
+    ),
+    url(
+        r'^(?P<project_slug>[-\w]+)/rules/regex/create/$',
+        RegexAutomationRuleCreate.as_view(),
+        name='projects_automation_rule_regex_create',
+    ),
+    url(
+        r'^(?P<project_slug>[-\w]+)/rules/regex/(?P<automation_rule_pk>[-\w]+)/$',
+        RegexAutomationRuleUpdate.as_view(),
+        name='projects_automation_rule_regex_edit',
+    ),
+]
+
+urlpatterns += automation_rule_urls