zed/info_count_status_bar_plan.md

Plan: Show info_count in the Status Bar

The goal is consistency: the status bar should reflect what the diagnostics panel shows. When include_warnings is true the panel now shows errors, warnings, and info-level diagnostics, so the status bar counter should too.

No new icons, toolbar buttons, or actions. The include_warnings setting name stays the same. Changes touch six areas.

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1. Extend DiagnosticSummary — crates/project/src/lsp_store.rs

Struct — add pub info_count: usize.

DiagnosticSummary::new() — add an arm to the severity match:

DiagnosticSeverity::INFORMATION => this.info_count += 1,

is_empty() — no change. It gates the checkmark icon ("no errors or warnings"). An info-only workspace still showing the checkmark is acceptable.

diagnostic_summary() — add summary.info_count += path_summary.info_count alongside the existing error/warning accumulation.

diagnostic_summary_for_path() — expand the fold from a 2-tuple to a 3-tuple (error_count, warning_count, info_count) and include it in the returned struct.

to_proto() — add info_count: self.info_count as u32.

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2. Extend the proto message — crates/proto/proto/lsp.proto

Add a new field to message DiagnosticSummary:

uint32 info_count = 5;

Protobuf field ordering means old clients silently ignore the new field, so this is backward-compatible. No DB schema or migration change is needed — diagnostics are not persisted in the collab database.

After updating the schema, run the repo's normal proto regeneration/build path so the Rust bindings for proto::DiagnosticSummary pick up the new field. Also keep the proto change Buf-clean (buf lint / buf format) so CI passes.

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3. Propagate info_count through proto serialization — crates/project/src/lsp_store.rs

Every site in lsp_store.rs that constructs proto::DiagnosticSummary { ..., error_count, warning_count } needs info_count added as well.

Every site in lsp_store.rs that deserializes a proto message back into DiagnosticSummary { error_count, warning_count } needs info_count: message_summary.info_count as usize.

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4. Show info_count in the status bar — crates/diagnostics/src/items.rs

In render(), keep the outer checkmark-vs-counts decision based on error_count and warning_count only, so an info-only workspace still renders the checkmark. Within the existing non-checkmark branch, after the existing .when(warning_count > 0, ...) child, add:

let include_warnings = ProjectSettings::get_global(cx).diagnostics.include_warnings;
// ...
.when(self.summary.info_count > 0 && include_warnings, |this| {
    this.child(
        Icon::new(IconName::Info)
            .size(IconSize::Small)
            .color(Color::Info),
    )
    .child(Label::new(self.summary.info_count.to_string()).size(LabelSize::Small))
})

IconName::Info and Color::Info already exist and are used elsewhere; no new icons are introduced.

The auto-enable logic in the on_click handler (which sets include_warnings = true when the user clicks the status bar with errors = 0 and warnings > 0) does not need to change — info-only scenarios are rare and can be handled in a follow-up.

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5. Fix the collab integration test — crates/collab/tests/integration/integration_tests.rs

test_collaborating_with_diagnostics constructs DiagnosticSummary literals. Add info_count: 0 to each, or derive Default on the struct and use ..Default::default() struct-update syntax.

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6. Fix the diagnostics unit test — crates/diagnostics/src/diagnostics_tests.rs

test_buffer_diagnostics_multiple_servers asserts on *buffer_diagnostics.summary() using a DiagnosticSummary literal. Add info_count: 0 there too.

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Summary of files touched

File	Change
crates/project/src/lsp_store.rs	Add info_count to struct, new(), is_empty() (no-op), diagnostic_summary(), diagnostic_summary_for_path(), to_proto(), and all proto construction/deserialization sites
crates/proto/proto/lsp.proto	Add uint32 info_count = 5 to DiagnosticSummary message and regenerate/build the Rust bindings as required by the repo's proto pipeline
crates/diagnostics/src/items.rs	Render info_count in status bar when include_warnings is true
crates/collab/tests/integration/integration_tests.rs	Add info_count: 0 to DiagnosticSummary literals
crates/diagnostics/src/diagnostics_tests.rs	Add info_count: 0 to DiagnosticSummary literal