feat: add gitoxide.parsePrecious configuration key to opt-in to precious file parsing.

Author: Byron

gix/src/config/cache/access.rs

@@ -396,11 +396,20 @@ impl Cache {
             Some(user_path) => Some(user_path),
             None => self.xdg_config_path("ignore")?,
         };
+        let parse_ignore = gix_ignore::search::Ignore {
+            support_precious: boolean(
+                self,
+                "gitoxide.parsePrecious",
+                &config::tree::Gitoxide::PARSE_PRECIOUS,
+                false,
+            )?,
+        };
         Ok(gix_worktree::stack::state::Ignore::new(
             overrides.unwrap_or_default(),
-            gix_ignore::Search::from_git_dir(git_dir, excludes_file, buf)?,
+            gix_ignore::Search::from_git_dir(git_dir, excludes_file, buf, parse_ignore)?,
             None,
             source,
+            parse_ignore,
         ))
     }
     // TODO: at least one test, maybe related to core.attributesFile configuration.

gix/src/config/cache/init.rs

@@ -357,10 +357,16 @@ fn apply_environment_overrides(
             "gitoxide",
             None,
             git_prefix,
-            &[{
-                let key = &Gitoxide::TRACE_PACKET;
-                (env(key), key.name)
-            }],
+            &[
+                {
+                    let key = &Gitoxide::TRACE_PACKET;
+                    (env(key), key.name)
+                },
+                {
+                    let key = &Gitoxide::PARSE_PRECIOUS;
+                    (env(key), key.name)
+                },
+            ],
         ),
         (
             "gitoxide",

gix/src/config/mod.rs

@@ -239,6 +239,7 @@ pub mod command_context {
 
 ///
 pub mod exclude_stack {
+    use crate::config;
     use std::path::PathBuf;
 
     /// The error produced when setting up a stack to query `gitignore` information.
@@ -251,6 +252,8 @@ pub mod exclude_stack {
         EnvironmentPermission(#[from] gix_sec::permission::Error<PathBuf>),
         #[error("The value for `core.excludesFile` could not be read from configuration")]
         ExcludesFilePathInterpolation(#[from] gix_config::path::interpolate::Error),
+        #[error(transparent)]
+        ParsePreciousEnabled(#[from] config::boolean::Error),
     }
 }
 

gix/src/config/tree/sections/gitoxide.rs

@@ -36,6 +36,9 @@ impl Gitoxide {
     /// The `gitoxide.tracePacket` Key.
     pub const TRACE_PACKET: keys::Boolean = keys::Boolean::new_boolean("tracePacket", &config::Tree::GITOXIDE)
         .with_environment_override("GIT_TRACE_PACKET");
+    /// The `gitoxide.parsePrecious` Key.
+    pub const PARSE_PRECIOUS: keys::Boolean = keys::Boolean::new_boolean("parsePrecious", &config::Tree::GITOXIDE)
+        .with_environment_override("GIX_PARSE_PRECIOUS");
 }
 
 impl Section for Gitoxide {
@@ -44,7 +47,7 @@ impl Section for Gitoxide {
     }
 
     fn keys(&self) -> &[&dyn Key] {
-        &[&Self::USER_AGENT, &Self::TRACE_PACKET]
+        &[&Self::USER_AGENT, &Self::TRACE_PACKET, &Self::PARSE_PRECIOUS]
     }
 
     fn sub_sections(&self) -> &[&dyn Section] {

gix/tests/gix-init.rs

@@ -52,6 +52,7 @@ mod with_overrides {
             .set("GIT_AUTHOR_DATE", default_date)
             .set("EMAIL", "user email")
             .set("GIX_PACK_CACHE_MEMORY", "0")
+            .set("GIX_PARSE_PRECIOUS", "1")
             .set("GIX_OBJECT_CACHE_MEMORY", "5m")
             .set("GIX_CREDENTIALS_HELPER_STDERR", "creds-stderr")
             .set("GIX_EXTERNAL_COMMAND_STDERR", "filter-stderr")
@@ -244,6 +245,7 @@ mod with_overrides {
             ("gitoxide.commit.authorDate", default_date),
             ("gitoxide.commit.committerDate", default_date),
             ("gitoxide.user.emailFallback", "user email"),
+            ("gitoxide.parsePrecious", "1"),
             ("core.deltaBaseCacheLimit", "0"),
             ("gitoxide.objects.cacheLimit", "5m"),
             ("gitoxide.pathspec.icase", "pathspecs-icase"),