nfm: Expand tilde to $HOME v2 SUPERSEDED

Hugo Machet: 1
 Expand tilde to $HOME

 1 files changed, 13 insertions(+), 3 deletions(-)

[PATCH nfm v2] Expand tilde to $HOME Export this patch

---
v1 -> v2:
Use $HOME instead of /home/$USER

 src/nfm.zig | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/nfm.zig b/src/nfm.zig
index b58a4a06f985..e4adefbf519e 100644
--- a/src/nfm.zig
+++ b/src/nfm.zig
@@ -73,13 +73,23 @@ pub const Context = struct {
 
     gpa: mem.Allocator = heap.page_allocator,
 
-    // TODO expand '~'
     pub fn setCwd(self: *Context, dirname: []const u8) !void {
         if (dirname.len == 1 and dirname[0] == '.') return;
 
         const prev_basename = fs.path.basename(self.cwd.name);
 
-        self.cwd = self.dirmap.getDirAndSetCwd(dirname) catch |err| {
+        var name = dirname;
+        if (dirname[0] == '~') {
+            const home = os.getenv("HOME") orelse {
+                context.mode.setMessage(.err, "$HOME is not set");
+                return;
+            };
+
+            var buf: [100]u8 = undefined;
+            name = try fmt.bufPrint(&buf, "{s}{s}", .{ home, dirname[1..] });
+        }
+
+        self.cwd = self.dirmap.getDirAndSetCwd(name) catch |err| {
             switch (err) {
                 error.AccessDenied => {
                     self.mode.setMessage(.err, "Access Denied");
@@ -98,7 +108,7 @@ pub const Context = struct {
         };
 
         // If we go up one directory, ensure that the cursor is on the previous cwd.
-        if (dirname[0] == '.' and dirname[1] == '.') {
+        if (name[0] == '.' and name[1] == '.') {
             var i: usize = 0;
             for (self.cwd.files.items) |*dir| {
                 if (mem.eql(u8, prev_basename, dir.name)) {
-- 
2.35.1