Drop the stdenv tagger

ofborg/src/config.rs

@@ -168,12 +168,23 @@ impl Config {
     }
 
     pub fn github(&self) -> Github {
-        let token = std::fs::read_to_string(self.github_app.clone().expect("No GitHub app configured").oauth_client_secret_file)
-            .expect("Couldn't read from GitHub app token");
+        let token = std::fs::read_to_string(
+            self.github_app
+                .clone()
+                .expect("No GitHub app configured")
+                .oauth_client_secret_file,
+        )
+        .expect("Couldn't read from GitHub app token");
         let token = token.trim();
         Github::new(
             "github.com/NixOS/ofborg",
-            Credentials::Client(self.github_app.clone().expect("No GitHub app configured").oauth_client_id, token.to_owned()),
+            Credentials::Client(
+                self.github_app
+                    .clone()
+                    .expect("No GitHub app configured")
+                    .oauth_client_id,
+                token.to_owned(),
+            ),
         )
         .expect("Unable to create a github client instance")
     }

ofborg/src/tagger.rs

@@ -1,68 +1,8 @@
 use crate::maintainers::{Maintainer, MaintainersByPackage};
 use crate::outpathdiff::PackageArch;
-use crate::tasks;
 
 use tracing::info;
 
-pub struct StdenvTagger {
-    possible: Vec<String>,
-    selected: Vec<String>,
-}
-
-impl Default for StdenvTagger {
-    fn default() -> StdenvTagger {
-        let mut t = StdenvTagger {
-            possible: vec![
-                String::from("10.rebuild-linux-stdenv"),
-                String::from("10.rebuild-darwin-stdenv"),
-            ],
-            selected: vec![],
-        };
-        t.possible.sort();
-
-        t
-    }
-}
-
-impl StdenvTagger {
-    pub fn new() -> StdenvTagger {
-        Default::default()
-    }
-
-    pub fn changed(&mut self, systems: Vec<tasks::eval::stdenvs::System>) {
-        for system in systems {
-            match system {
-                tasks::eval::stdenvs::System::X8664Darwin => {
-                    self.selected.push(String::from("10.rebuild-darwin-stdenv"));
-                }
-                tasks::eval::stdenvs::System::X8664Linux => {
-                    self.selected.push(String::from("10.rebuild-linux-stdenv"));
-                }
-            }
-        }
-
-        for tag in &self.selected {
-            if !self.possible.contains(tag) {
-                panic!("Tried to add label {tag} but it isn't in the possible list!");
-            }
-        }
-    }
-
-    pub fn tags_to_add(&self) -> Vec<String> {
-        self.selected.clone()
-    }
-
-    pub fn tags_to_remove(&self) -> Vec<String> {
-        let mut remove = self.possible.clone();
-        for tag in &self.selected {
-            let pos = remove.binary_search(tag).unwrap();
-            remove.remove(pos);
-        }
-
-        remove
-    }
-}
-
 pub struct PkgsAddedRemovedTagger {
     possible: Vec<String>,
     selected: Vec<String>,

ofborg/src/tasks/eval/mod.rs

@@ -1,10 +1,8 @@
 mod generic;
 mod nixpkgs;
-pub mod stdenvs;
 
 pub use self::generic::GenericStrategy;
 pub use self::nixpkgs::NixpkgsStrategy;
-pub use self::stdenvs::Stdenvs;
 use crate::checkout::CachedProjectCo;
 use crate::commitstatus::{CommitStatus, CommitStatusError};
 use crate::evalchecker::EvalChecker;

ofborg/src/tasks/eval/nixpkgs.rs

@@ -8,9 +8,9 @@ use crate::message::evaluationjob::EvaluationJob;
 use crate::nix::{self, Nix};
 use crate::nixenv::HydraNixEnv;
 use crate::outpathdiff::{OutPathDiff, PackageArch};
-use crate::tagger::{MaintainerPrTagger, PkgsAddedRemovedTagger, RebuildTagger, StdenvTagger};
+use crate::tagger::{MaintainerPrTagger, PkgsAddedRemovedTagger, RebuildTagger};
 use crate::tasks::eval::{
-    stdenvs::Stdenvs, Error, EvaluationComplete, EvaluationStrategy, StepResult,
+    Error, EvaluationComplete, EvaluationStrategy, StepResult,
 };
 use crate::tasks::evaluate::{get_prefix, make_gist, update_labels};
 
@@ -55,7 +55,6 @@ pub struct NixpkgsStrategy<'a> {
     repo: &'a Repository,
     gists: &'a Gists,
     nix: Nix,
-    stdenv_diff: Option<Stdenvs>,
     outpath_diff: Option<OutPathDiff>,
     changed_paths: Option<Vec<String>>,
     touched_packages: Option<Vec<String>>,
@@ -80,7 +79,6 @@ impl<'a> NixpkgsStrategy<'a> {
             repo,
             gists,
             nix,
-            stdenv_diff: None,
             outpath_diff: None,
             changed_paths: None,
             touched_packages: None,
@@ -102,32 +100,6 @@ impl<'a> NixpkgsStrategy<'a> {
         update_labels(self.issue_ref, &labels, &[]);
     }
 
-    fn check_stdenvs_before(&mut self, dir: &Path) {
-        let mut stdenvs = Stdenvs::new(self.nix.clone(), dir.to_path_buf());
-        stdenvs.identify_before();
-        self.stdenv_diff = Some(stdenvs);
-    }
-
-    fn check_stdenvs_after(&mut self) {
-        if let Some(ref mut stdenvs) = self.stdenv_diff {
-            stdenvs.identify_after();
-        }
-    }
-
-    fn update_stdenv_labels(&self) {
-        if let Some(ref stdenvs) = self.stdenv_diff {
-            let mut stdenvtagger = StdenvTagger::new();
-            if !stdenvs.are_same() {
-                stdenvtagger.changed(stdenvs.changed());
-            }
-            update_labels(
-                self.issue_ref,
-                &stdenvtagger.tags_to_add(),
-                &stdenvtagger.tags_to_remove(),
-            );
-        }
-    }
-
     fn check_outpaths_before(&mut self, dir: &Path) -> StepResult<()> {
         let mut rebuildsniff = OutPathDiff::new(self.nix.clone(), dir.to_path_buf());
 
@@ -379,12 +351,6 @@ impl<'a> EvaluationStrategy for NixpkgsStrategy<'a> {
     }
 
     fn on_target_branch(&mut self, dir: &Path, status: &mut CommitStatus) -> StepResult<()> {
-        status.set_with_description(
-            "Checking original stdenvs",
-            hubcaps::statuses::State::Pending,
-        )?;
-        self.check_stdenvs_before(dir);
-
         status.set_with_description(
             "Checking original out paths",
             hubcaps::statuses::State::Pending,
@@ -423,9 +389,6 @@ impl<'a> EvaluationStrategy for NixpkgsStrategy<'a> {
             &["2.status: merge conflict".to_owned()],
         );
 
-        status.set_with_description("Checking new stdenvs", hubcaps::statuses::State::Pending)?;
-        self.check_stdenvs_after();
-
         status.set_with_description("Checking new out paths", hubcaps::statuses::State::Pending)?;
         self.check_outpaths_after()?;
 
@@ -568,7 +531,6 @@ impl<'a> EvaluationStrategy for NixpkgsStrategy<'a> {
         dir: &Path,
         status: &mut CommitStatus,
     ) -> StepResult<EvaluationComplete> {
-        self.update_stdenv_labels();
 
         status.set_with_description(
             "Calculating Changed Outputs",