1 files changed, 198 insertions, 0 deletions
diff --git a/vendor/dirs-sys-next/src/lib.rs b/vendor/dirs-sys-next/src/lib.rs
new file mode 100644
index 000000000..f76862e85
--- /dev/null
+++ b/vendor/dirs-sys-next/src/lib.rs
@@ -0,0 +1,198 @@
+#![warn(rust_2018_idioms)]
+
+use std::ffi::OsString;
+use std::path::PathBuf;
+
+// we don't need to explicitly handle empty strings in the code above,
+// because an empty string is not considered to be a absolute path here.
+pub fn is_absolute_path(path: OsString) -> Option<PathBuf> {
+    let path = PathBuf::from(path);
+    if path.is_absolute() {
+        Some(path)
+    } else {
+        None
+    }
+}
+
+#[cfg(all(unix, not(target_os = "redox")))]
+mod target_unix_not_redox {
+
+    use std::env;
+    use std::ffi::{CStr, OsString};
+    use std::mem;
+    use std::os::unix::ffi::OsStringExt;
+    use std::path::PathBuf;
+    use std::ptr;
+
+    // https://github.com/rust-lang/rust/blob/ef3e3863939217678e5f7e755c4234d224107c64/library/std/src/sys/unix/os.rs#L587
+    pub fn home_dir() -> Option<PathBuf> {
+        return env::var_os("HOME")
+            .and_then(|h| if h.is_empty() { None } else { Some(h) })
+            .or_else(|| unsafe { fallback() })
+            .map(PathBuf::from);
+
+        #[cfg(any(target_os = "android", target_os = "ios", target_os = "emscripten"))]
+        unsafe fn fallback() -> Option<OsString> {
+            None
+        }
+        #[cfg(not(any(target_os = "android", target_os = "ios", target_os = "emscripten")))]
+        unsafe fn fallback() -> Option<OsString> {
+            let amt = match libc::sysconf(libc::_SC_GETPW_R_SIZE_MAX) {
+                n if n < 0 => 512 as usize,
+                n => n as usize,
+            };
+            let mut buf = Vec::with_capacity(amt);
+            let mut passwd: libc::passwd = mem::zeroed();
+            let mut result = ptr::null_mut();
+            match libc::getpwuid_r(libc::getuid(), &mut passwd, buf.as_mut_ptr(), buf.capacity(), &mut result) {
+                0 if !result.is_null() => {
+                    let ptr = passwd.pw_dir as *const _;
+                    let bytes = CStr::from_ptr(ptr).to_bytes();
+                    if bytes.is_empty() {
+                        None
+                    } else {
+                        Some(OsStringExt::from_vec(bytes.to_vec()))
+                    }
+                }
+                _ => None,
+            }
+        }
+    }
+}
+
+#[cfg(all(unix, not(target_os = "redox")))]
+pub use self::target_unix_not_redox::home_dir;
+
+#[cfg(target_os = "redox")]
+mod target_redox {
+
+    use std::path::PathBuf;
+
+    use redox_users::{All, AllUsers, Config};
+
+    pub fn home_dir() -> Option<PathBuf> {
+        let current_uid = redox_users::get_uid().ok()?;
+        let users = AllUsers::basic(Config::default()).ok()?;
+        let user = users.get_by_id(current_uid)?;
+
+        Some(PathBuf::from(user.home.clone()))
+    }
+}
+
+#[cfg(target_os = "redox")]
+pub use self::target_redox::home_dir;
+
+#[cfg(all(unix, not(any(target_os = "macos", target_os = "ios"))))]
+mod xdg_user_dirs;
+
+#[cfg(all(unix, not(any(target_os = "macos", target_os = "ios"))))]
+mod target_unix_not_mac {
+
+    use std::collections::HashMap;
+    use std::env;
+    use std::path::{Path, PathBuf};
+
+    use super::xdg_user_dirs;
+    use super::{home_dir, is_absolute_path};
+
+    fn user_dir_file(home_dir: &Path) -> PathBuf {
+        env::var_os("XDG_CONFIG_HOME")
+            .and_then(is_absolute_path)
+            .unwrap_or_else(|| home_dir.join(".config"))
+            .join("user-dirs.dirs")
+    }
+
+    // this could be optimized further to not create a map and instead retrieve the requested path only
+    pub fn user_dir(user_dir_name: &str) -> Option<PathBuf> {
+        if let Some(home_dir) = home_dir() {
+            xdg_user_dirs::single(&home_dir, &user_dir_file(&home_dir), user_dir_name).remove(user_dir_name)
+        } else {
+            None
+        }
+    }
+
+    pub fn user_dirs(home_dir_path: &Path) -> HashMap<String, PathBuf> {
+        xdg_user_dirs::all(home_dir_path, &user_dir_file(home_dir_path))
+    }
+}
+
+#[cfg(all(unix, not(any(target_os = "macos", target_os = "ios"))))]
+pub use self::target_unix_not_mac::{user_dir, user_dirs};
+
+#[cfg(target_os = "windows")]
+mod target_windows {
+
+    use std::ffi::OsString;
+    use std::os::windows::ffi::OsStringExt;
+    use std::path::PathBuf;
+    use std::ptr;
+    use std::slice;
+
+    use winapi::shared::winerror;
+    use winapi::um::{combaseapi, knownfolders, shlobj, shtypes, winbase, winnt};
+
+    pub fn known_folder(folder_id: shtypes::REFKNOWNFOLDERID) -> Option<PathBuf> {
+        unsafe {
+            let mut path_ptr: winnt::PWSTR = ptr::null_mut();
+            let result = shlobj::SHGetKnownFolderPath(folder_id, 0, ptr::null_mut(), &mut path_ptr);
+            if result == winerror::S_OK {
+                let len = winbase::lstrlenW(path_ptr) as usize;
+                let path = slice::from_raw_parts(path_ptr, len);
+                let ostr: OsString = OsStringExt::from_wide(path);
+                combaseapi::CoTaskMemFree(path_ptr as *mut winapi::ctypes::c_void);
+                Some(PathBuf::from(ostr))
+            } else {
+                None
+            }
+        }
+    }
+
+    pub fn known_folder_profile() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Profile)
+    }
+
+    pub fn known_folder_roaming_app_data() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_RoamingAppData)
+    }
+
+    pub fn known_folder_local_app_data() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_LocalAppData)
+    }
+
+    pub fn known_folder_music() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Music)
+    }
+
+    pub fn known_folder_desktop() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Desktop)
+    }
+
+    pub fn known_folder_documents() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Documents)
+    }
+
+    pub fn known_folder_downloads() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Downloads)
+    }
+
+    pub fn known_folder_pictures() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Pictures)
+    }
+
+    pub fn known_folder_public() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Public)
+    }
+    pub fn known_folder_templates() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Templates)
+    }
+    pub fn known_folder_videos() -> Option<PathBuf> {
+        known_folder(&knownfolders::FOLDERID_Videos)
+    }
+}
+
+#[cfg(target_os = "windows")]
+pub use self::target_windows::{
+    known_folder, known_folder_desktop, known_folder_documents, known_folder_downloads, known_folder_local_app_data,
+    known_folder_music, known_folder_pictures, known_folder_profile, known_folder_public,
+    known_folder_roaming_app_data, known_folder_templates, known_folder_videos,
+};