Path.searchFileUp

1 import dshould;
2 Path root = createTempPath();
3 scope(exit) root.remove();
4 
5 // Save current directory
6 auto cdir = std.file.getcwd;
7 scope(exit) std.file.chdir(cdir);
8 
9 // Create directory structure
10 root.join("dir1", "dir2", "dir3").mkdir(true);
11 root.join("dir1", "my-conf.conf").writeFile("hello!");
12 root.join("dir1", "dir4", "dir8").mkdir(true);
13 root.join("dir1", "dir4", "my-conf.conf").writeFile("Hi!");
14 root.join("dir1", "dir5", "dir6", "dir7").mkdir(true);
15 
16 // Change current working directory to dir7
17 root.join("dir1", "dir5", "dir6", "dir7").chdir;
18 
19 // Find config file. It sould be dir1/my-conf.conf
20 auto p1 = Path.current.searchFileUp("my-conf.conf");
21 p1.isNull.should.be(false);
22 version(OSX) {
23     p1.get.toString.should.equal(
24         root.join("dir1", "my-conf.conf").realPath.toString);
25 } else {
26     p1.get.toString.should.equal(
27         root.join("dir1", "my-conf.conf").toAbsolute.toString);
28 }
29 
30 // Try to get config, related to "dir8"
31 auto p2 = root.join("dir1", "dir4", "dir8").searchFileUp(
32     "my-conf.conf");
33 p2.isNull.should.be(false);
34 p2.get.should.equal(
35         root.join("dir1", "dir4", "my-conf.conf"));
36 
37 // Test searching for some path (instead of simple file/string)
38 auto p3 = root.join("dir1", "dir2", "dir3").searchFileUp(
39     Path("dir4", "my-conf.conf"));
40 p3.isNull.should.be(false);
41 p3.get.should.equal(
42         root.join("dir1", "dir4", "my-conf.conf"));
43 
44 // One more test
45 auto p4 = root.join("dir1", "dir2", "dir3").searchFileUp(
46     "my-conf.conf");
47 p4.isNull.should.be(false);
48 p4.get.should.equal(root.join("dir1", "my-conf.conf"));
49 
50 // Try to find up some unexisting file
51 auto p5 = root.join("dir1", "dir2", "dir3").searchFileUp(
52     "i-am-not-exist.conf");
53 p5.isNull.should.be(true);
54 
55 import core.exception: AssertError;
56 p5.get.should.throwA!AssertError;