change: Invert behaviour to open::Options::strict_config(), with lenient being the default.

This means API users will get libgit2 behaviour but commands like `gix` can
change options to emulate `git` behaviour.

Author: Byron

Diff for: git-repository/src/open.rs

@@ -60,7 +60,7 @@ impl ReplacementObjects {
 }
 
 /// The options used in [`ThreadSafeRepository::open_opts`]
-#[derive(Default, Clone)]
+#[derive(Clone)]
 pub struct Options {
     pub(crate) object_store_slots: git_odb::store::init::Slots,
     pub(crate) replacement_objects: ReplacementObjects,
@@ -72,6 +72,21 @@ pub struct Options {
     pub(crate) bail_if_untrusted: bool,
 }
 
+impl Default for Options {
+    fn default() -> Self {
+        Options {
+            object_store_slots: Default::default(),
+            replacement_objects: Default::default(),
+            permissions: Default::default(),
+            git_dir_trust: None,
+            filter_config_section: None,
+            lossy_config: None,
+            lenient_config: true,
+            bail_if_untrusted: false,
+        }
+    }
+}
+
 #[derive(Default, Clone)]
 #[allow(dead_code)]
 pub(crate) struct EnvironmentOverrides {
@@ -182,13 +197,12 @@ impl Options {
         self
     }
 
-    /// If set, default is false, invalid configuration values will be defaulted to acceptable values where when possible,
-    /// instead of yielding an error during startup.
+    /// If set, default is false, invalid configuration values will cause an error even if these can safely be defaulted.
     ///
-    /// This is recommended for all applications that prefer usability over correctness. `git` itslef by default is not lenient
-    /// towards malconfigured repositories.
-    pub fn lenient_config(mut self, toggle: bool) -> Self {
-        self.lenient_config = toggle;
+    /// This is recommended for all applications that prefer correctness over usability.
+    /// `git` itself by defaults to strict configuration mode to let you know if configuration is incorrect.
+    pub fn strict_config(mut self, toggle: bool) -> Self {
+        self.lenient_config = !toggle;
         self
     }
 
@@ -209,7 +223,7 @@ impl git_sec::trust::DefaultForLevel for Options {
                 filter_config_section: Some(config::section::is_trusted),
                 lossy_config: None,
                 bail_if_untrusted: false,
-                lenient_config: false,
+                lenient_config: true,
             },
             git_sec::Trust::Reduced => Options {
                 object_store_slots: git_odb::store::init::Slots::Given(32), // limit resource usage
@@ -218,7 +232,7 @@ impl git_sec::trust::DefaultForLevel for Options {
                 git_dir_trust: git_sec::Trust::Reduced.into(),
                 filter_config_section: Some(config::section::is_trusted),
                 bail_if_untrusted: false,
-                lenient_config: false,
+                lenient_config: true,
                 lossy_config: None,
             },
         }

Diff for: git-repository/tests/id/mod.rs

@@ -31,14 +31,15 @@ fn prefix() -> crate::Result {
 
     assert!(
         matches!(
-            git_repository::open(worktree_dir.path()).unwrap_err(),
+            git_repository::open_opts(worktree_dir.path(), git::open::Options::isolated().strict_config(true))
+                .unwrap_err(),
             git::open::Error::Config(git::config::Error::EmptyValue { .. })
         ),
         "an empty core.abbrev fails the open operation in strict config mode, emulating git behaviour"
     );
     assert!(
-        git_repository::open_opts(worktree_dir.path(), git::open::Options::isolated().lenient_config(true)).is_ok(),
-        "but it can be made to work when we are lenient (good for APIs)"
+        git_repository::open(worktree_dir.path()).is_ok(),
+        "By default gitoxide acts like `libgit2` here and we prefer to be lenient when possible"
     );
     Ok(())
 }

Diff for: src/plumbing/main.rs

@@ -54,7 +54,10 @@ pub fn main() -> Result<()> {
     use git_repository as git;
     let repository = args.repository;
     let repository = move || {
-        git::ThreadSafeRepository::discover(repository)
+        let mut mapping: git::sec::trust::Mapping<git::open::Options> = Default::default();
+        mapping.full = mapping.full.strict_config(true);
+        mapping.reduced = mapping.reduced.strict_config(true);
+        git::ThreadSafeRepository::discover_opts(repository, Default::default(), mapping)
             .map(git::Repository::from)
             .map(|r| r.apply_environment())
     };