[autometrics 1.0 compliance] add repo url and provider (#152)

* add repo url and provider

* update changelog

* coulda lso add the pr number ngl

* fix wrong cardinality

* unintended change my bad

CHANGELOG.md

@@ -19,6 +19,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed missing feature flag for `opentelemetry-otlp` when autometrics feature
   `otel-push-exporter` is enabled
 
+### Autometrics 1.0 compliance
+
+The [Autometrics specification v1.0.0](https://github.com/autometrics-dev/autometrics-shared/blob/main/specs/autometrics_v1.0.0.md) has been released.
+The following changes are made in order to bring the release in compliance with the spec:
+
+- Added `repository_url` and `repository_provider` as `build_info` labels. They can be
+  configured either through environment variables or automatically based on your `Cargo.toml`
+  `package.repository` value (only GitHub, GitLab and BitBucket) (#152)
+
 ## [0.6.0](https://github.com/autometrics-dev/autometrics-rs/releases/tag/v0.5.0) - 2023-08-08
 
 ### Added

autometrics-macros/src/lib.rs

@@ -308,6 +308,8 @@ fn instrument_function(
                     option_env!("AUTOMETRICS_VERSION").or(option_env!("CARGO_PKG_VERSION")).unwrap_or_default(),
                     option_env!("AUTOMETRICS_COMMIT").or(option_env!("VERGEN_GIT_SHA")).unwrap_or_default(),
                     option_env!("AUTOMETRICS_BRANCH").or(option_env!("VERGEN_GIT_BRANCH")).unwrap_or_default(),
+                    option_env!("AUTOMETRICS_REPOSITORY_URL").or(option_env!("CARGO_PKG_REPOSITORY")).unwrap_or_default(),
+                    option_env!("AUTOMETRICS_REPOSITORY_PROVIDER").unwrap_or_default(),
                 ));
                 AutometricsTracker::start(#gauge_labels)
             };

autometrics/src/constants.rs

@@ -37,3 +37,7 @@ pub const COMMIT_KEY: &str = "commit";
 pub const BRANCH_KEY: &str = "branch";
 pub const SERVICE_NAME_KEY: &str = "service.name";
 pub const SERVICE_NAME_KEY_PROMETHEUS: &str = "service_name";
+pub const REPO_URL_KEY: &str = "repository.url";
+pub const REPO_URL_KEY_PROMETHEUS: &str = "repository_url";
+pub const REPO_PROVIDER_KEY: &str = "repository.provider";
+pub const REPO_PROVIDER_KEY_PROMETHEUS: &str = "repository_provider";

autometrics/src/labels.rs

@@ -15,15 +15,23 @@ pub struct BuildInfoLabels {
     pub(crate) commit: &'static str,
     pub(crate) version: &'static str,
     pub(crate) service_name: &'static str,
+    pub(crate) repo_url: &'static str,
+    pub(crate) repo_provider: &'static str,
 }
 
 impl BuildInfoLabels {
-    pub fn new(version: &'static str, commit: &'static str, branch: &'static str) -> Self {
+    pub fn new(version: &'static str, commit: &'static str, branch: &'static str, repo_url: &'static str, mut repo_provider: &'static str) -> Self {
+        if repo_provider.is_empty() {
+            repo_provider = Self::determinate_repo_provider_from_url(repo_url);
+        }
+
         Self {
             version,
             commit,
             branch,
             service_name: &get_settings().service_name,
+            repo_url,
+            repo_provider
         }
     }
 
@@ -33,8 +41,24 @@ impl BuildInfoLabels {
             (VERSION_KEY, self.version),
             (BRANCH_KEY, self.branch),
             (SERVICE_NAME_KEY, self.service_name),
+            (REPO_URL_KEY, self.repo_url),
+            (REPO_PROVIDER_KEY, self.repo_provider)
         ]
     }
+
+    fn determinate_repo_provider_from_url(url: &'static str) -> &'static str {
+        let lowered = url.to_lowercase();
+
+        if lowered.contains("github.com") {
+            "github"
+        } else if lowered.contains("gitlab.com") {
+            "gitlab"
+        } else if lowered.contains("bitbucket.org") {
+            "bitbucket"
+        } else {
+            ""
+        }
+    }
 }
 
 /// These are the labels used for the `function.calls` metric.

autometrics/src/tracker/prometheus.rs

@@ -73,7 +73,9 @@ static BUILD_INFO: Lazy<IntGaugeVec> = Lazy::new(|| {
             COMMIT_KEY,
             VERSION_KEY,
             BRANCH_KEY,
-            SERVICE_NAME_KEY_PROMETHEUS
+            SERVICE_NAME_KEY_PROMETHEUS,
+            REPO_URL_KEY_PROMETHEUS,
+            REPO_PROVIDER_KEY_PROMETHEUS,
         ],
         get_settings().prometheus_registry.clone()
     )
@@ -143,6 +145,8 @@ impl TrackMetrics for PrometheusTracker {
                     build_info_labels.version,
                     build_info_labels.branch,
                     build_info_labels.service_name,
+                    build_info_labels.repo_url,
+                    build_info_labels.repo_provider
                 ])
                 .set(1);
         });