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const std = @import("std");
usingnamespace @import("strings.zig");
const alloc = @import("alloc.zig");
const expect = std.testing.expect;
// pub const FilesystemImplementation = @import("fs_impl.zig");
pub const FileSystem = struct { tree: std.AutoHashMap(FileSystemEntry) };
pub const FileSystemEntry = union(enum) {
file: File,
directory: Directory,
};
pub const File = struct {
path: Path,
mtime: ?usize,
contents: ?string,
};
pub const Directory = struct { path: Path, mtime: ?usize, contents: []FileSystemEntry };
pub const PathName = struct {
base: string,
dir: string,
ext: string,
// For readability, the names of certain automatically-generated symbols are
// derived from the file name. For example, instead of the CommonJS wrapper for
// a file being called something like "require273" it can be called something
// like "require_react" instead. This function generates the part of these
// identifiers that's specific to the file path. It can take both an absolute
// path (OS-specific) and a path in the source code (OS-independent).
//
// Note that these generated names do not at all relate to the correctness of
// the code as far as avoiding symbol name collisions. These names still go
// through the renaming logic that all other symbols go through to avoid name
// collisions.
pub fn nonUniqueNameString(self: *PathName, allocator: *std.mem.Allocator) !string {
if (strings.eql("index", self.base)) {
if (self.dir.len > 0) {
return MutableString.ensureValidIdentifier(PathName.init(self.dir).dir, allocator);
}
}
return MutableString.ensureValidIdentifier(self.base, allocator);
}
pub fn init(_path: string) PathName {
var path = _path;
var base = path;
var ext = path;
var dir = path;
var _i = strings.lastIndexOfChar(path, '/');
while (_i) |i| {
// Stop if we found a non-trailing slash
if (i + 1 != path.len) {
base = path[i + 1 ..];
dir = path[0..i];
break;
}
// Ignore trailing slashes
path = path[0..i];
_i = strings.lastIndexOfChar(path, '/');
}
// Strip off the extension
var _dot = strings.lastIndexOfChar(base, '.');
if (_dot) |dot| {
ext = base[dot..];
base = base[0..dot];
}
return PathName{
.dir = dir,
.base = base,
.ext = ext,
};
}
};
pub const Path = struct {
pretty: string,
text: string,
namespace: string,
name: PathName,
pub fn init(text: string) Path {
return Path{ .pretty = text, .text = text, .namespace = "file", .name = PathName.init(text) };
}
pub fn isBefore(a: *Path, b: Path) bool {
return a.namespace > b.namespace ||
(a.namespace == b.namespace and (a.text < b.text ||
(a.text == b.text and (a.flags < b.flags ||
(a.flags == b.flags)))));
}
};
test "PathName.init" {
var file = "/root/directory/file.ext".*;
const res = PathName.init(
&file,
);
std.testing.expectEqualStrings(res.dir, "/root/directory");
std.testing.expectEqualStrings(res.base, "file");
std.testing.expectEqualStrings(res.ext, ".ext");
}
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