Merge pull request #406 from rawlingsj/ignore_patterns

add `ignore-regex-patterns` update config to indicate you want to ign…

Author: rawlingsj

docs/UPDATE.md

@@ -52,3 +52,17 @@ update:
     use-tag: true # Optional, override the default of using a GitHub release to identify related tag to fetch.  Not all projects use GitHub releases but just use tags
     tag-filter: foo # Optional, filter to apply when searching tags on a GitHub repository, some repos maintain a mixture of tags for different major versions for example
 ```
+
+## Ignore versions
+
+Some upstream projects create tags that can interfere with version comparisons, you may find the need to ignore these.
+
+To achieve this you can specify a list of regex patterns to identify versions that you want to ignore:
+
+```yaml
+update:
+  enabled: true
+  ignore-regex-patterns:
+    - "ignore_me*"
+    - "*ignore_me"
+```

pkg/build/build.go

@@ -233,12 +233,13 @@ type AdvisoryContent struct {
 
 // Update provides information used to describe how to keep the package up to date
 type Update struct {
-	Enabled          bool            `yaml:"enabled"`                     // toggle if updates should occur
-	Manual           bool            `yaml:"manual"`                      // indicates that this package should be manually updated, usually taking care over special version numbers
-	Shared           bool            `yaml:"shared,omitempty"`            // indicate that an update to this package requires an epoch bump of downstream dependencies, e.g. golang, java
-	VersionSeparator string          `yaml:"version-separator,omitempty"` // override the version separator if it is nonstandard
-	ReleaseMonitor   *ReleaseMonitor `yaml:"release-monitor,omitempty"`
-	GitHubMonitor    *GitHubMonitor  `yaml:"github,omitempty"`
+	Enabled             bool            `yaml:"enabled"`                         // toggle if updates should occur
+	Manual              bool            `yaml:"manual"`                          // indicates that this package should be manually updated, usually taking care over special version numbers
+	Shared              bool            `yaml:"shared,omitempty"`                // indicate that an update to this package requires an epoch bump of downstream dependencies, e.g. golang, java
+	VersionSeparator    string          `yaml:"version-separator,omitempty"`     // override the version separator if it is nonstandard
+	IgnoreRegexPatterns []string        `yaml:"ignore-regex-patterns,omitempty"` // a slice of regex patterns to match an upstream version and ignore
+	ReleaseMonitor      *ReleaseMonitor `yaml:"release-monitor,omitempty"`
+	GitHubMonitor       *GitHubMonitor  `yaml:"github,omitempty"`
 }
 
 // ReleaseMonitor indicates using the API for https://release-monitoring.org/