aboutsummaryrefslogtreecommitdiff
path: root/src/install/resolvers/folder_resolver.zig
blob: a102e22db4dd97fc963de8247a71c8c638d9f8ed (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
const std = @import("std");
const PackageID = @import("../install.zig").PackageID;
const Lockfile = @import("../install.zig").Lockfile;
const PackageManager = @import("../install.zig").PackageManager;
const Npm = @import("../npm.zig");
const logger = @import("bun").logger;
const FileSystem = @import("../../fs.zig").FileSystem;
const JSAst = @import("../../js_ast.zig");
const string = @import("../../string_types.zig").string;
const Features = @import("../install.zig").Features;
const IdentityContext = @import("../../identity_context.zig").IdentityContext;
const strings = @import("bun").strings;
const Resolution = @import("../resolution.zig").Resolution;
const String = @import("../semver.zig").String;
const Semver = @import("../semver.zig");
const bun = @import("bun");
const Dependency = @import("../dependency.zig");
pub const FolderResolution = union(Tag) {
    package_id: PackageID,
    new_package_id: PackageID,
    err: anyerror,

    pub const Tag = enum { package_id, err, new_package_id };

    pub const Map = std.HashMapUnmanaged(u64, FolderResolution, IdentityContext(u64), 80);

    pub fn normalize(path: string) string {
        return FileSystem.instance.normalize(path);
    }

    pub fn hash(normalized_path: string) u64 {
        return std.hash.Wyhash.hash(0, normalized_path);
    }

    pub fn NewResolver(comptime tag: Resolution.Tag) type {
        return struct {
            folder_path: string,

            pub fn resolve(this: @This(), comptime Builder: type, builder: Builder, _: JSAst.Expr) !Resolution {
                return Resolution{
                    .tag = tag,
                    .value = @unionInit(Resolution.Value, @tagName(tag), builder.append(String, this.folder_path)),
                };
            }

            pub fn count(this: @This(), comptime Builder: type, builder: Builder, _: JSAst.Expr) void {
                builder.count(this.folder_path);
            }
        };
    }

    pub const Resolver = NewResolver(Resolution.Tag.folder);
    pub const SymlinkResolver = NewResolver(Resolution.Tag.symlink);
    pub const CacheFolderResolver = struct {
        folder_path: []const u8 = "",
        version: Semver.Version,

        pub fn resolve(this: @This(), comptime Builder: type, _: Builder, _: JSAst.Expr) !Resolution {
            return Resolution{
                .tag = Resolution.Tag.npm,
                .value = .{
                    .npm = .{
                        .version = this.version,
                        .url = String.init("", ""),
                    },
                },
            };
        }

        pub fn count(_: @This(), comptime Builder: type, _: Builder, _: JSAst.Expr) void {}
    };

    pub fn normalizePackageJSONPath(global_or_relative: GlobalOrRelative, joined: *[bun.MAX_PATH_BYTES]u8, non_normalized_path: string) [2]string {
        var abs: string = "";
        var rel: string = "";
        // We consider it valid if there is a package.json in the folder
        const normalized = std.mem.trimRight(u8, normalize(non_normalized_path), std.fs.path.sep_str);

        if (strings.startsWithChar(normalized, '.')) {
            var tempcat: [bun.MAX_PATH_BYTES]u8 = undefined;

            std.mem.copy(u8, &tempcat, normalized);
            tempcat[normalized.len] = std.fs.path.sep;
            std.mem.copy(u8, tempcat[normalized.len + 1 ..], "package.json");
            var parts = [_]string{ FileSystem.instance.top_level_dir, tempcat[0 .. normalized.len + 1 + "package.json".len] };
            abs = FileSystem.instance.absBuf(&parts, joined);
            rel = FileSystem.instance.relative(FileSystem.instance.top_level_dir, abs[0 .. abs.len - "/package.json".len]);
        } else {
            var remain: []u8 = joined[0..];
            switch (global_or_relative) {
                .global, .cache_folder => {
                    const path = if (global_or_relative == .global) global_or_relative.global else global_or_relative.cache_folder;
                    if (path.len > 0) {
                        const offset = path.len -| @as(usize, @boolToInt(path[path.len -| 1] == std.fs.path.sep));
                        if (offset > 0)
                            @memcpy(remain.ptr, path.ptr, offset);
                        remain = remain[offset..];
                        if (normalized.len > 0) {
                            if ((path[path.len - 1] != std.fs.path.sep) and (normalized[0] != std.fs.path.sep)) {
                                remain[0] = std.fs.path.sep;
                                remain = remain[1..];
                            }
                        }
                    }
                },
                else => {},
            }
            std.mem.copy(u8, remain, normalized);
            remain[normalized.len] = std.fs.path.sep;
            remain[normalized.len + 1 ..][0.."package.json".len].* = "package.json".*;
            remain = remain[normalized.len + 1 + "package.json".len ..];
            abs = joined[0 .. joined.len - remain.len];
            // We store the folder name without package.json
            rel = abs[0 .. abs.len - "/package.json".len];
        }

        return .{ abs, rel };
    }

    pub fn readPackageJSONFromDisk(
        manager: *PackageManager,
        joinedZ: [:0]const u8,
        abs: []const u8,
        version: Dependency.Version,
        comptime features: Features,
        comptime ResolverType: type,
        resolver: ResolverType,
    ) !Lockfile.Package {
        var package_json: std.fs.File = try std.fs.cwd().openFileZ(joinedZ, .{ .mode = .read_only });
        defer package_json.close();
        var package = Lockfile.Package{};
        var body = Npm.Registry.BodyPool.get(manager.allocator);
        defer Npm.Registry.BodyPool.release(body);
        const len = try package_json.getEndPos();

        body.data.reset();
        body.data.inflate(@maximum(len, 2048)) catch unreachable;
        body.data.list.expandToCapacity();
        const source_buf = try package_json.readAll(body.data.list.items);

        const source = logger.Source.initPathString(abs, body.data.list.items[0..source_buf]);

        try Lockfile.Package.parse(
            manager.lockfile,
            &package,
            manager.allocator,
            manager.log,
            source,
            ResolverType,
            resolver,
            features,
        );

        if (manager.lockfile.getPackageID(package.name_hash, version, package.resolution)) |existing_id| {
            return manager.lockfile.packages.get(existing_id);
        }

        return manager.lockfile.appendPackage(package) catch unreachable;
    }

    pub const GlobalOrRelative = union(enum) {
        global: []const u8,
        relative: void,
        cache_folder: []const u8,
    };

    pub fn getOrPut(global_or_relative: GlobalOrRelative, version: Dependency.Version, non_normalized_path: string, manager: *PackageManager) FolderResolution {
        var joined: [bun.MAX_PATH_BYTES]u8 = undefined;
        const paths = normalizePackageJSONPath(global_or_relative, &joined, non_normalized_path);
        const abs = paths[0];
        const rel = paths[1];

        var entry = manager.folders.getOrPut(manager.allocator, hash(abs)) catch unreachable;
        if (entry.found_existing) return entry.value_ptr.*;

        joined[abs.len] = 0;
        var joinedZ: [:0]u8 = joined[0..abs.len :0];
        const package: Lockfile.Package = switch (global_or_relative) {
            .global => readPackageJSONFromDisk(
                manager,
                joinedZ,
                abs,
                version,
                Features.link,
                SymlinkResolver,
                SymlinkResolver{ .folder_path = non_normalized_path },
            ),
            .relative => readPackageJSONFromDisk(
                manager,
                joinedZ,
                abs,
                version,
                Features.folder,
                Resolver,
                Resolver{ .folder_path = rel },
            ),
            .cache_folder => readPackageJSONFromDisk(
                manager,
                joinedZ,
                abs,
                version,
                Features.npm,
                CacheFolderResolver,
                CacheFolderResolver{ .version = version.value.npm.toVersion() },
            ),
        } catch |err| {
            if (err == error.FileNotFound) {
                entry.value_ptr.* = .{ .err = error.MissingPackageJSON };
            } else {
                entry.value_ptr.* = .{ .err = err };
            }

            return entry.value_ptr.*;
        };

        entry.value_ptr.* = .{ .package_id = package.meta.id };
        return FolderResolution{ .new_package_id = package.meta.id };
    }
};