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source default shell from SHELL if set

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This commit is contained in:
Mitchell Hashimoto
2022-11-01 14:09:40 -07:00
parent 7da18d8063
commit 74d8d6cd6c
1 changed files with 16 additions and 3 deletions
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19
src/config.zig
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@ -32,7 +32,12 @@ pub const Config = struct {
foreground: Color = .{ .r = 0xFF, .g = 0xA5, .b = 0 },
/// The command to run, usually a shell. If this is not an absolute path,
/// it'll be looked up in the PATH.
/// it'll be looked up in the PATH. If this is not set, a default will
/// be looked up from your system. The rules for the default lookup are:
///
/// - SHELL environment variable
/// - passwd entry (user information)
///
command: ?[]const u8 = null,
/// Key bindings. The format is "trigger=action". Duplicate triggers
@ -158,6 +163,15 @@ pub const Config = struct {
// If we are missing either a command or home directory, we need
// to look up defaults which is kind of expensive.
if (self.command == null) command: {
const alloc = self._arena.?.allocator();
// First look up the command using the SHELL env var.
if (std.process.getEnvVarOwned(alloc, "SHELL")) |value| {
log.debug("default shell source=env value={s}", .{value});
self.command = value;
break :command;
} else |_| {}
var buf: [1024]u8 = undefined;
var pw: c.struct_passwd = undefined;
var pw_ptr: ?*c.struct_passwd = null;
@ -176,11 +190,10 @@ pub const Config = struct {
if (pw.pw_shell) |ptr| {
const source = std.mem.sliceTo(ptr, 0);
const alloc = self._arena.?.allocator();
const sh = try alloc.alloc(u8, source.len);
std.mem.copy(u8, sh, source);
log.debug("default shell={s}", .{sh});
log.debug("default shell src=passwd value={s}", .{sh});
self.command = sh;
}
}