Convert age matcher to use a duration config (#159)

* 🚀 Allow age with at-least/at-most options

Marks the old `age: 2d` option as deprecated but keeps it for backward compatability

README.md

@@ -53,7 +53,7 @@ Please consider [sponsoring the project](https://github.com/sponsors/srvaroa) if
 ### How to trigger action
 
 To trigger the action on events, add a file `.github/workflows/main.yml`
-to your repository: 
+to your repository:
 
 ```yaml
 name: Label PRs
@@ -294,7 +294,7 @@ With this config, the behaviour changes:
 
 ## Conditions
 
-Below are the conditions currently supported in label matchers, in 
+Below are the conditions currently supported in label matchers, in
 alphabetical order. Some important considerations:
 
 * Conditions evaluate only when they are explicitly added in
@@ -308,20 +308,29 @@ alphabetical order. Some important considerations:
 
 ### Age (PRs and Issues) <a name="age" />
 
-This condition is satisfied when the age of the PR or Issue are larger than
-the given one. The age is calculated from the creation date.
+This condition evaluates the creation date of the PR or Issue.
 
-If you're looking to evaluate on the modification date of the issue or PR, 
+If you're looking to evaluate on the modification date of the issue or PR,
 check on <a href="#last-modified" ></a>
 
 This condition is best used when with a <a href="#schedule">schedule trigger</a>.
 
-Example:
+Examples:
+
+```yaml
+age-range:
+  at-most: 1d
+```
+
+Will label PRs or issues that were created at most one day ago.
 
 ```yaml
-age: 1d
+age-range:
+  at-least: 1w
 ```
 
+Will label PRs or issues that were created at least one week ago.
+
 The syntax for values is based on a number, followed by a suffix:
 
 * s: seconds
@@ -412,7 +421,7 @@ This condition is satisfied when any of the PR files matches on the
 given regexs.
 
 ```yaml
-files: 
+files:
 - "cmd\\/.*_tests.go"
 - ".*\\/subfolder\\/.*\\.md"
 ```
@@ -425,9 +434,9 @@ and therefore must be escaped itself to appear as a literal in the regex.
 
 ### Last Modified (PRs and Issues) <a name="last-modified" />
 
-This condition evaluates the modification date of the PR or Issue. 
+This condition evaluates the modification date of the PR or Issue.
 
-If you're looking to evaluate on the creation date of the issue or PR, 
+If you're looking to evaluate on the creation date of the issue or PR,
 check on <a href="#age" ></a>
 
 This condition is best used when with a <a href="#schedule">schedule trigger</a>.
@@ -462,19 +471,19 @@ For example, `2d` means 2 days, `4w` means 4 weeks, and so on.
 
 This condition is satisfied when the [mergeable
 state](https://developer.github.com/v3/pulls/#response-1) matches that
-of the PR. 
+of the PR.
 
 ```yaml
 mergeable: True
 ```
 
-Will match if the label is mergeable. 
+Will match if the label is mergeable.
 
 ```yaml
 mergeable: False
 ```
 
-Will match if the label is not mergeable. 
+Will match if the label is not mergeable.
 
 ### Size (PRs only) <a name="size" />
 
@@ -518,7 +527,7 @@ file or a Regex expression:
     size:
         exclude-files: ["yarn.lock", "\\/root\\/.+\\/test.md"]
         above: 100
-``` 
+```
 
 This condition will apply the `L` label if the diff is above 100 lines,
 but NOT taking into account changes in `yarn.lock`, or any `test.md`

pkg/condition_age.go

@@ -14,10 +14,35 @@ func AgeCondition(l *Labeler) Condition {
 			return target.ghIssue != nil || target.ghPR != nil
 		},
 		Evaluate: func(target *Target, matcher LabelMatcher) (bool, error) {
-			// Parse the age from the configuration
-			ageDuration, err := parseExtendedDuration(matcher.Age)
-			if err != nil {
-				return false, fmt.Errorf("failed to parse age parameter in configuration: %v", err)
+			// Backward compatibility: If "age" is provided as a string, treat it as "at-least"
+			var atLeastDuration, atMostDuration time.Duration
+			var err error
+
+			//	If they have specified a legacy "age" field, use that
+			//	and treat it is as "at-least"
+			if matcher.Age != "" {
+				atLeastDuration, err = parseExtendedDuration(matcher.Age)
+				if err != nil {
+					return false, fmt.Errorf("failed to parse age parameter in configuration: %v", err)
+				}
+			} else if matcher.AgeRange != nil {
+				// Parse "at-least" if specified
+				if matcher.AgeRange.AtLeast != "" {
+					atLeastDuration, err = parseExtendedDuration(matcher.AgeRange.AtLeast)
+					if err != nil {
+						return false, fmt.Errorf("failed to parse `age.at-least` parameter in configuration: %v", err)
+					}
+				}
+
+				// Parse "at-most" if specified
+				if matcher.AgeRange.AtMost != "" {
+					atMostDuration, err = parseExtendedDuration(matcher.AgeRange.AtMost)
+					if err != nil {
+						return false, fmt.Errorf("failed to parse `age.at-most` parameter in configuration: %v", err)
+					}
+				}
+			} else {
+				return false, fmt.Errorf("no age conditions are set in config")
 			}
 
 			// Determine the creation time of the issue or PR
@@ -30,7 +55,15 @@ func AgeCondition(l *Labeler) Condition {
 
 			age := time.Since(createdAt)
 
-			return age > ageDuration, nil
+			//	Check if the age of the issue/PR is within the specified range
+			if atLeastDuration != 0 && age < atLeastDuration {
+				return false, nil
+			}
+			if atMostDuration != 0 && age > atMostDuration {
+				return false, nil
+			}
+
+			return true, nil
 		},
 	}
 }

pkg/labeler.go

@@ -19,7 +19,8 @@ type SizeConfig struct {
 }
 
 type LabelMatcher struct {
-	Age            string
+	Age            string          `yaml:"age,omitempty"` // Deprecated age config.
+	AgeRange       *DurationConfig `yaml:"age-range,omitempty"`
 	AuthorCanMerge string `yaml:"author-can-merge"`
 	Authors        []string
 	AuthorInTeam   string `yaml:"author-in-team"`

pkg/labeler_test.go

@@ -204,6 +204,32 @@ func TestHandleEvent(t *testing.T) {
 			initialLabels:  []string{},
 			expectedLabels: []string{"ThisIsOld"},
 		},
+		// Test the AgeRange configuration
+		{
+			event:    "pull_request",
+			payloads: []string{"create_pr"},
+			name:     "Age of a PR in the past",
+			config: LabelerConfigV1{
+				Version: 1,
+				Labels: []LabelMatcher{
+					{
+						Label: "Getting Old",
+						AgeRange: &DurationConfig{
+							AtLeast: "7d",
+							AtMost: "14d",
+						},
+					},
+					{
+						Label: "Getting Ancient",
+						AgeRange: &DurationConfig{
+							AtLeast: "14d",
+						},
+					},
+				},
+			},
+			initialLabels:  []string{},
+			expectedLabels: []string{"Getting Ancient"},
+		},
 		{
 			event:    "pull_request",
 			payloads: []string{"create_draft_pr"},