tiny.smg.cli.resolve

1const std = @import("std");23const smg = @import("../root.zig");4const graph_mod = smg.graph;5const output = smg.cli.output;6const storage = smg.storage;7const view = smg.view;89pub fn graphNode(allocator: std.mem.Allocator, graph: graph_mod.Graph, raw: []const u8, limits: smg.SuggestionLimits) ![]const u8 {10    const matches = try view.lookup(graph, allocator, raw, limits);11    if (matches.len == 1) return matches[0];12    if (matches.len == 0) {13        try writeNotFound(allocator, raw, try view.suggestNodes(graph, allocator, raw, limits.displayed_name_count, limits));14        return error.NodeNotFound;15    }16    try writeAmbiguous(allocator, raw, matches);17    return error.AmbiguousName;18}1920pub fn storedNode(21    allocator: std.mem.Allocator,22    root: []const u8,23    reader: *storage.database.Reader,24    raw: []const u8,25    limits: smg.SuggestionLimits,26) ![]const u8 {27    return switch (try storage.context.resolveNodeNameFromReader(28        allocator,29        root,30        reader,31        raw,32        limits,33    )) {34        .resolved => |name| name,35        .missing => |suggestions| {36            try writeNotFound(allocator, raw, suggestions);37            return error.NodeNotFound;38        },39        .ambiguous => |matches| {40            try writeAmbiguous(allocator, raw, matches);41            return error.AmbiguousName;42        },43    };44}4546fn writeNotFound(allocator: std.mem.Allocator, raw: []const u8, suggestions: []const []const u8) !void {47    var out: std.Io.Writer.Allocating = .init(allocator);48    defer out.deinit();49    try out.writer.print("Error: node not found: {s}\n", .{raw});50    if (suggestions.len != 0) {51        try out.writer.writeAll("Did you mean:\n");52        for (suggestions) |name| try out.writer.print("  {s}\n", .{name});53    }54    try output.writeErr(out.written());55}5657fn writeAmbiguous(allocator: std.mem.Allocator, raw: []const u8, matches: []const []const u8) !void {58    var out: std.Io.Writer.Allocating = .init(allocator);59    defer out.deinit();60    try out.writer.print("Error: ambiguous name {s}, matches:\n", .{raw});61    for (matches) |match| try out.writer.print("  {s}\n", .{match});62    try output.writeErr(out.written());63}

1pub const resolve = @import("resolve.zig");