Merging upstream version 1.73.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

13 files changed, 1847 insertions, 0 deletions

diff --git a/vendor/opener-0.5.2/.cargo-checksum.json b/vendor/opener-0.5.2/.cargo-checksum.json
new file mode 100644
index 000000000..bffe903f7
--- /dev/null
+++ b/vendor/opener-0.5.2/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"2cfbe75ecb3af9664c3db6ea65f3d70494beea3fd86efc213c306194ed9f037b","Drakefile.ts":"e357716de020b86a99b96b0b345651f3b2654e77dcb5c7fa98edea4a2a374589","LICENSE-APACHE":"8f3c95de851c0acc9d1cbaa95e500e4198408283b853ed3e355ce27112057b44","LICENSE-MIT":"1847e0e0698142ed4347c1441a9fa81c8fbddd44b1d8bbcd5e3647f991759d7f","LICENSE-THIRD-PARTY":"d1bd8c7783bffd68a6207d89d9243eece7e7df0bb6bcb605f76d9684621c2e35","README.md":"1f8d189094fa1b22436dbf98d8c5f6e87178b42224e6f94d21ceefec44b76070","src/lib.rs":"0992c8f29d4776fc8f36623ec810fc1faf602a55321ab321a2c379bdb2dec696","src/linux_and_more.rs":"96912d2099ac0cad116160b9147d46c8c374f191796c2095a1c56519feed4909","src/macos.rs":"38e762e83064c2150a125b6e6c477640652f9dceeeadbeeda64d0edd4936cf01","src/windows.rs":"d0ed2e6ae1deb8ded4eb8cc9204a868290f390aa9078b7cd953b1dfbd2261c25","src/xdg-open":"25c6bf62d29b61696881695a47994d503ee9bbd9402b8256b3a3e87e495be75e","tests/version-numbers.rs":"8069cb08b31531f8eb5e164089b1acbe7dc77e4ba87dcc0a3717205446847795"},"package":"293c15678e37254c15bd2f092314abb4e51d7fdde05c2021279c12631b54f005"}
\ No newline at end of file
diff --git a/vendor/opener-0.5.2/Cargo.toml b/vendor/opener-0.5.2/Cargo.toml
new file mode 100644
index 000000000..8d91b5ef3
--- /dev/null
+++ b/vendor/opener-0.5.2/Cargo.toml
@@ -0,0 +1,49 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2018"
+name = "opener"
+version = "0.5.2"
+authors = ["Brian Bowman <seeker14491@gmail.com>"]
+description = "Open a file or link using the system default program."
+readme = "README.md"
+keywords = [
+    "open",
+    "default",
+    "launcher",
+    "browser",
+]
+categories = ["os"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/Seeker14491/opener"
+
+[dev-dependencies.version-sync]
+version = "0.9"
+
+[target."cfg(target_os = \"linux\")".dependencies.bstr]
+version = "1"
+
+[target."cfg(windows)".dependencies.winapi]
+version = "0.3"
+features = ["shellapi"]
+
+[badges.appveyor]
+branch = "master"
+repository = "Seeker14491/opener"
+service = "github"
+
+[badges.maintenance]
+status = "passively-maintained"
+
+[badges.travis-ci]
+branch = "master"
+repository = "Seeker14491/opener"
diff --git a/vendor/opener-0.5.2/Drakefile.ts b/vendor/opener-0.5.2/Drakefile.ts
new file mode 100644
index 000000000..476cb23d9
--- /dev/null
+++ b/vendor/opener-0.5.2/Drakefile.ts
@@ -0,0 +1,79 @@
+import {
+  abort,
+  desc,
+  env,
+  run,
+  sh,
+  shCapture,
+  task,
+} from "https://deno.land/x/drake@v1.5.0/mod.ts";
+
+const SHOULD_CARGO_PUBLISH = true;
+const SHOULD_PUSH_DOCS_TO_GITHUB_PAGES = false;
+
+desc("Release a new version of the crate");
+task("release", [], async () => {
+  const version = env("version");
+  if (version == null) {
+    abort("The version to release was not specified");
+  }
+  if (!isValidSemVer(version)) {
+    abort("The given version is not a valid SemVer string");
+  }
+
+  await sh("cargo test --all-features");
+  await sh("cargo fmt -- --check");
+  await sh("git diff HEAD --exit-code --name-only");
+
+  if (SHOULD_CARGO_PUBLISH) {
+    await sh("cargo publish --dry-run");
+  }
+
+  const tagName = `v${version}`;
+  await sh(`git tag -a ${tagName} -m "Release ${tagName}"`);
+  await sh("git push origin master");
+  await sh(`git push origin ${tagName}`);
+
+  if (SHOULD_CARGO_PUBLISH) {
+    await sh("cargo publish");
+  }
+
+  if (SHOULD_PUSH_DOCS_TO_GITHUB_PAGES) {
+    await run("upload-docs");
+  }
+});
+
+desc("Upload docs to GitHub Pages");
+task("upload-docs", [], async () => {
+  let origin_url;
+  {
+    const { code, output, error } = await shCapture(
+      "git remote get-url origin",
+    );
+    if (code == 0) {
+      origin_url = output.trim();
+    } else {
+      abort("Error getting origin's url from git");
+    }
+  }
+
+  await sh("cargo clean --doc");
+  await sh("cargo doc --no-deps");
+
+  {
+    const run = (command: string) => sh(command, { cwd: "target/doc" });
+
+    await run("git init");
+    await run("git add .");
+    await run('git commit -am "(doc upload)"');
+    await run(`git push -f ${origin_url} master:gh-pages`);
+  }
+});
+
+run();
+
+function isValidSemVer(s: string): boolean {
+  return s.match(
+    /^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/,
+  ) != null;
+}
diff --git a/vendor/opener-0.5.2/LICENSE-APACHE b/vendor/opener-0.5.2/LICENSE-APACHE
new file mode 100644
index 000000000..4c8c37f5d
--- /dev/null
+++ b/vendor/opener-0.5.2/LICENSE-APACHE
@@ -0,0 +1,199 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
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+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
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+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
\ No newline at end of file
diff --git a/vendor/opener-0.5.2/LICENSE-MIT b/vendor/opener-0.5.2/LICENSE-MIT
new file mode 100644
index 000000000..6802bc4b8
--- /dev/null
+++ b/vendor/opener-0.5.2/LICENSE-MIT
@@ -0,0 +1,19 @@
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/vendor/opener-0.5.2/LICENSE-THIRD-PARTY b/vendor/opener-0.5.2/LICENSE-THIRD-PARTY
new file mode 100644
index 000000000..10307a7b6
--- /dev/null
+++ b/vendor/opener-0.5.2/LICENSE-THIRD-PARTY
@@ -0,0 +1,19 @@
+- xdg-utils: https://cgit.freedesktop.org/xdg/xdg-utils/plain/LICENSE
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+    #
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+    #
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+    OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+    ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+    OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/vendor/opener-0.5.2/README.md b/vendor/opener-0.5.2/README.md
new file mode 100644
index 000000000..d204ac804
--- /dev/null
+++ b/vendor/opener-0.5.2/README.md
@@ -0,0 +1,28 @@
+# Opener
+
+This crate provides the ability to open a file or link with the default program configured on the system.
+
+See the docs for more details:
+
+### [Docs](https://docs.rs/opener)
+
+## License
+
+Licensed under either of
+
+* Apache License, Version 2.0
+    (http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license
+    (http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Third party software
+
+See LICENSE-THIRD-PARTY
+
+## Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.
diff --git a/vendor/opener-0.5.2/src/lib.rs b/vendor/opener-0.5.2/src/lib.rs
new file mode 100644
index 000000000..ee00d37a2
--- /dev/null
+++ b/vendor/opener-0.5.2/src/lib.rs
@@ -0,0 +1,220 @@
+#![doc(html_root_url = "https://docs.rs/opener/0.5.2")]
+
+//! This crate provides the [`open`] function, which opens a file or link with the default program
+//! configured on the system:
+//!
+//! ```no_run
+//! # fn main() -> Result<(), ::opener::OpenError> {
+//! // open a website
+//! opener::open("https://www.rust-lang.org")?;
+//!
+//! // open a file
+//! opener::open("../Cargo.toml")?;
+//! # Ok(())
+//! # }
+//! ```
+//!
+//! An [`open_browser`] function is also provided, for when you intend on opening a file or link in a
+//! browser, specifically. This function works like the [`open`] function, but explicitly allows
+//! overriding the browser launched by setting the `$BROWSER` environment variable.
+
+#![warn(
+    rust_2018_idioms,
+    deprecated_in_future,
+    macro_use_extern_crate,
+    missing_debug_implementations,
+    unused_qualifications
+)]
+
+#[cfg(not(any(target_os = "windows", target_os = "macos")))]
+mod linux_and_more;
+#[cfg(target_os = "macos")]
+mod macos;
+#[cfg(target_os = "windows")]
+mod windows;
+
+#[cfg(not(any(target_os = "windows", target_os = "macos")))]
+use crate::linux_and_more as sys;
+#[cfg(target_os = "macos")]
+use crate::macos as sys;
+#[cfg(target_os = "windows")]
+use crate::windows as sys;
+
+use std::error::Error;
+use std::ffi::{OsStr, OsString};
+use std::fmt::{self, Display, Formatter};
+use std::process::{Command, ExitStatus, Stdio};
+use std::{env, io};
+
+/// Opens a file or link with the system default program.
+///
+/// Note that a path like "rustup.rs" could potentially refer to either a file or a website. If you
+/// want to open the website, you should add the "http://" prefix, for example.
+///
+/// Also note that a result of `Ok(())` just means a way of opening the path was found, and no error
+/// occurred as a direct result of opening the path. Errors beyond that point aren't caught. For
+/// example, `Ok(())` would be returned even if a file was opened with a program that can't read the
+/// file, or a dead link was opened in a browser.
+///
+/// ## Platform Implementation Details
+///
+/// - On Windows the `ShellExecuteW` Windows API function is used.
+/// - On Mac the system `open` command is used.
+/// - On Windows Subsystem for Linux (WSL), the system `wslview` from [`wslu`] is used if available,
+/// otherwise the system `xdg-open` is used, if available.
+/// - On non-WSL Linux and other platforms,
+/// the system `xdg-open` script is used if available, otherwise an `xdg-open` script embedded in
+/// this library is used.
+///
+/// [`wslu`]: https://github.com/wslutilities/wslu/
+pub fn open<P>(path: P) -> Result<(), OpenError>
+where
+    P: AsRef<OsStr>,
+{
+    sys::open(path.as_ref())
+}
+
+/// Opens a file or link with the system default program, using the `BROWSER` environment variable
+/// when set.
+///
+/// If the `BROWSER` environment variable is set, the program specified by it is used to open the
+/// path. If not, behavior is identical to [`open()`].
+pub fn open_browser<P>(path: P) -> Result<(), OpenError>
+where
+    P: AsRef<OsStr>,
+{
+    let mut path = path.as_ref();
+    if let Ok(browser_var) = env::var("BROWSER") {
+        let windows_path;
+        if is_wsl() && browser_var.ends_with(".exe") {
+            if let Some(windows_path_2) = wsl_to_windows_path(path) {
+                windows_path = windows_path_2;
+                path = &windows_path;
+            }
+        };
+
+        Command::new(&browser_var)
+            .arg(path)
+            .stdin(Stdio::null())
+            .stdout(Stdio::null())
+            .stderr(Stdio::piped())
+            .spawn()
+            .map_err(OpenError::Io)?;
+
+        Ok(())
+    } else {
+        sys::open(path)
+    }
+}
+
+/// An error type representing the failure to open a path. Possibly returned by the [`open`]
+/// function.
+///
+/// The `ExitStatus` variant will never be returned on Windows.
+#[derive(Debug)]
+pub enum OpenError {
+    /// An IO error occurred.
+    Io(io::Error),
+
+    /// A command exited with a non-zero exit status.
+    ExitStatus {
+        /// A string that identifies the command.
+        cmd: &'static str,
+
+        /// The failed process's exit status.
+        status: ExitStatus,
+
+        /// Anything the process wrote to stderr.
+        stderr: String,
+    },
+}
+
+impl Display for OpenError {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        match self {
+            OpenError::Io(_) => {
+                write!(f, "IO error")?;
+            }
+            OpenError::ExitStatus {
+                cmd,
+                status,
+                stderr,
+            } => {
+                write!(f, "command '{cmd}' did not execute successfully; {status}")?;
+
+                let stderr = stderr.trim();
+                if !stderr.is_empty() {
+                    write!(f, "\ncommand stderr:\n{stderr}")?;
+                }
+            }
+        }
+
+        Ok(())
+    }
+}
+
+impl Error for OpenError {
+    fn source(&self) -> Option<&(dyn Error + 'static)> {
+        match self {
+            OpenError::Io(inner) => Some(inner),
+            OpenError::ExitStatus { .. } => None,
+        }
+    }
+}
+
+#[cfg(target_os = "linux")]
+fn is_wsl() -> bool {
+    sys::is_wsl()
+}
+
+#[cfg(not(target_os = "linux"))]
+fn is_wsl() -> bool {
+    false
+}
+
+#[cfg(target_os = "linux")]
+fn wsl_to_windows_path(path: &OsStr) -> Option<OsString> {
+    use bstr::ByteSlice;
+    use std::os::unix::ffi::OsStringExt;
+
+    let output = Command::new("wslpath")
+        .arg("-w")
+        .arg(path)
+        .stdin(Stdio::null())
+        .stdout(Stdio::piped())
+        .stderr(Stdio::null())
+        .output()
+        .ok()?;
+
+    if !output.status.success() {
+        return None;
+    }
+
+    Some(OsString::from_vec(output.stdout.trim_end().to_vec()))
+}
+
+#[cfg(not(target_os = "linux"))]
+fn wsl_to_windows_path(_path: &OsStr) -> Option<OsString> {
+    unreachable!()
+}
+
+#[cfg(not(target_os = "windows"))]
+fn wait_child(child: &mut std::process::Child, cmd_name: &'static str) -> Result<(), OpenError> {
+    use std::io::Read;
+
+    let exit_status = child.wait().map_err(OpenError::Io)?;
+    if exit_status.success() {
+        Ok(())
+    } else {
+        let mut stderr_output = String::new();
+        if let Some(stderr) = child.stderr.as_mut() {
+            stderr.read_to_string(&mut stderr_output).ok();
+        }
+
+        Err(OpenError::ExitStatus {
+            cmd: cmd_name,
+            status: exit_status,
+            stderr: stderr_output,
+        })
+    }
+}
diff --git a/vendor/opener-0.5.2/src/linux_and_more.rs b/vendor/opener-0.5.2/src/linux_and_more.rs
new file mode 100644
index 000000000..87be414b4
--- /dev/null
+++ b/vendor/opener-0.5.2/src/linux_and_more.rs
@@ -0,0 +1,108 @@
+use crate::OpenError;
+use std::ffi::OsStr;
+use std::io::Write;
+use std::process::{Child, Command, Stdio};
+use std::{fs, io};
+
+const XDG_OPEN_SCRIPT: &[u8] = include_bytes!("xdg-open");
+
+pub(crate) fn open(path: &OsStr) -> Result<(), OpenError> {
+    if crate::is_wsl() {
+        wsl_open(path)
+    } else {
+        non_wsl_open(path)
+    }
+}
+
+fn wsl_open(path: &OsStr) -> Result<(), OpenError> {
+    let result = open_with_wslview(path);
+    if let Ok(mut child) = result {
+        return crate::wait_child(&mut child, "wslview");
+    }
+
+    open_with_system_xdg_open(path).map_err(OpenError::Io)?;
+
+    Ok(())
+}
+
+fn non_wsl_open(path: &OsStr) -> Result<(), OpenError> {
+    if open_with_system_xdg_open(path).is_err() {
+        open_with_internal_xdg_open(path)?;
+    }
+
+    Ok(())
+}
+
+fn open_with_wslview(path: &OsStr) -> io::Result<Child> {
+    let converted_path = crate::wsl_to_windows_path(path);
+    let converted_path = converted_path.as_deref();
+    let path = match converted_path {
+        None => path,
+        Some(x) => x,
+    };
+
+    Command::new("wslview")
+        .arg(path)
+        .stdin(Stdio::null())
+        .stdout(Stdio::null())
+        .stderr(Stdio::piped())
+        .spawn()
+}
+
+fn open_with_system_xdg_open(path: &OsStr) -> io::Result<Child> {
+    Command::new("xdg-open")
+        .arg(path)
+        .stdin(Stdio::null())
+        .stdout(Stdio::null())
+        .stderr(Stdio::null())
+        .spawn()
+}
+
+fn open_with_internal_xdg_open(path: &OsStr) -> Result<Child, OpenError> {
+    let mut sh = Command::new("sh")
+        .arg("-s")
+        .arg(path)
+        .stdin(Stdio::piped())
+        .stdout(Stdio::null())
+        .stderr(Stdio::null())
+        .spawn()
+        .map_err(OpenError::Io)?;
+
+    sh.stdin
+        .as_mut()
+        .unwrap()
+        .write_all(XDG_OPEN_SCRIPT)
+        .map_err(OpenError::Io)?;
+
+    Ok(sh)
+}
+
+pub(crate) fn is_wsl() -> bool {
+    if is_docker() {
+        return false;
+    }
+
+    if let Ok(true) = fs::read_to_string("/proc/sys/kernel/osrelease")
+        .map(|osrelease| osrelease.to_ascii_lowercase().contains("microsoft"))
+    {
+        return true;
+    }
+
+    if let Ok(true) = fs::read_to_string("/proc/version")
+        .map(|version| version.to_ascii_lowercase().contains("microsoft"))
+    {
+        return true;
+    }
+
+    false
+}
+
+fn is_docker() -> bool {
+    let has_docker_env = fs::metadata("/.dockerenv").is_ok();
+
+    let has_docker_cgroup = fs::read_to_string("/proc/self/cgroup")
+        .map(|cgroup| cgroup.to_ascii_lowercase().contains("docker"))
+        .unwrap_or(false);
+
+    has_docker_env || has_docker_cgroup
+}
diff --git a/vendor/opener-0.5.2/src/macos.rs b/vendor/opener-0.5.2/src/macos.rs
new file mode 100644
index 000000000..0459ae81f
--- /dev/null
+++ b/vendor/opener-0.5.2/src/macos.rs
@@ -0,0 +1,15 @@
+use crate::OpenError;
+use std::ffi::OsStr;
+use std::process::{Command, Stdio};
+
+pub(crate) fn open(path: &OsStr) -> Result<(), OpenError> {
+    let mut open = Command::new("open")
+        .arg(path)
+        .stdin(Stdio::null())
+        .stdout(Stdio::null())
+        .stderr(Stdio::piped())
+        .spawn()
+        .map_err(OpenError::Io)?;
+
+    crate::wait_child(&mut open, "open")
+}
diff --git a/vendor/opener-0.5.2/src/windows.rs b/vendor/opener-0.5.2/src/windows.rs
new file mode 100644
index 000000000..829bdb0c5
--- /dev/null
+++ b/vendor/opener-0.5.2/src/windows.rs
@@ -0,0 +1,41 @@
+use crate::OpenError;
+use std::ffi::OsStr;
+use std::os::windows::ffi::OsStrExt;
+use std::{io, ptr};
+use winapi::ctypes::c_int;
+use winapi::um::shellapi::ShellExecuteW;
+
+pub(crate) fn open(path: &OsStr) -> Result<(), OpenError> {
+    const SW_SHOW: c_int = 5;
+
+    let path = convert_path(path).map_err(OpenError::Io)?;
+    let operation: Vec<u16> = OsStr::new("open\0").encode_wide().collect();
+    let result = unsafe {
+        ShellExecuteW(
+            ptr::null_mut(),
+            operation.as_ptr(),
+            path.as_ptr(),
+            ptr::null(),
+            ptr::null(),
+            SW_SHOW,
+        )
+    };
+    if result as c_int > 32 {
+        Ok(())
+    } else {
+        Err(OpenError::Io(io::Error::last_os_error()))
+    }
+}
+
+fn convert_path(path: &OsStr) -> io::Result<Vec<u16>> {
+    let mut maybe_result: Vec<u16> = path.encode_wide().collect();
+    if maybe_result.iter().any(|&u| u == 0) {
+        return Err(io::Error::new(
+            io::ErrorKind::InvalidInput,
+            "path contains NUL byte(s)",
+        ));
+    }
+
+    maybe_result.push(0);
+    Ok(maybe_result)
+}
diff --git a/vendor/opener-0.5.2/src/xdg-open b/vendor/opener-0.5.2/src/xdg-open
new file mode 100644
index 000000000..cc682437e
--- /dev/null
+++ b/vendor/opener-0.5.2/src/xdg-open
@@ -0,0 +1,1065 @@
+#!/bin/sh
+#---------------------------------------------
+#   xdg-open
+#
+#   Utility script to open a URL in the registered default application.
+#
+#   Refer to the usage() function below for usage.
+#
+#   Copyright 2009-2010, Fathi Boudra <fabo@freedesktop.org>
+#   Copyright 2009-2016, Rex Dieter <rdieter@fedoraproject.org>
+#   Copyright 2006, Kevin Krammer <kevin.krammer@gmx.at>
+#   Copyright 2006, Jeremy White <jwhite@codeweavers.com>
+#
+#   LICENSE:
+#
+#   Permission is hereby granted, free of charge, to any person obtaining a
+#   copy of this software and associated documentation files (the "Software"),
+#   to deal in the Software without restriction, including without limitation
+#   the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#   and/or sell copies of the Software, and to permit persons to whom the
+#   Software is furnished to do so, subject to the following conditions:
+#
+#   The above copyright notice and this permission notice shall be included
+#   in all copies or substantial portions of the Software.
+#
+#   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+#   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+#   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+#   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+#   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#   OTHER DEALINGS IN THE SOFTWARE.
+#
+#---------------------------------------------
+
+manualpage()
+{
+cat << _MANUALPAGE
+Name
+
+   xdg-open -- opens a file or URL in the user's preferred
+   application
+
+Synopsis
+
+   xdg-open { file | URL }
+
+   xdg-open { --help | --manual | --version }
+
+Description
+
+   xdg-open opens a file or URL in the user's preferred
+   application. If a URL is provided the URL will be opened in the
+   user's preferred web browser. If a file is provided the file
+   will be opened in the preferred application for files of that
+   type. xdg-open supports file, ftp, http and https URLs.
+
+   xdg-open is for use inside a desktop session only. It is not
+   recommended to use xdg-open as root.
+
+Options
+
+   --help
+          Show command synopsis.
+
+   --manual
+          Show this manual page.
+
+   --version
+          Show the xdg-utils version information.
+
+Exit Codes
+
+   An exit code of 0 indicates success while a non-zero exit code
+   indicates failure. The following failure codes can be returned:
+
+   1
+          Error in command line syntax.
+
+   2
+          One of the files passed on the command line did not
+          exist.
+
+   3
+          A required tool could not be found.
+
+   4
+          The action failed.
+
+See Also
+
+   xdg-mime(1), xdg-settings(1), MIME applications associations
+   specification
+
+Examples
+
+xdg-open 'http://www.freedesktop.org/'
+
+   Opens the freedesktop.org website in the user's default
+   browser.
+
+xdg-open /tmp/foobar.png
+
+   Opens the PNG image file /tmp/foobar.png in the user's default
+   image viewing application.
+_MANUALPAGE
+}
+
+usage()
+{
+cat << _USAGE
+   xdg-open -- opens a file or URL in the user's preferred
+   application
+
+Synopsis
+
+   xdg-open { file | URL }
+
+   xdg-open { --help | --manual | --version }
+
+_USAGE
+}
+
+#@xdg-utils-common@
+
+#----------------------------------------------------------------------------
+#   Common utility functions included in all XDG wrapper scripts
+#----------------------------------------------------------------------------
+
+DEBUG()
+{
+  [ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && return 0;
+  [ ${XDG_UTILS_DEBUG_LEVEL} -lt $1 ] && return 0;
+  shift
+  echo "$@" >&2
+}
+
+# This handles backslashes but not quote marks.
+first_word()
+{
+    read first rest
+    echo "$first"
+}
+
+#-------------------------------------------------------------
+# map a binary to a .desktop file
+binary_to_desktop_file()
+{
+    search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+    binary="`command -v "$1"`"
+    binary="`readlink -f "$binary"`"
+    base="`basename "$binary"`"
+    IFS=:
+    for dir in $search; do
+        unset IFS
+        [ "$dir" ] || continue
+        [ -d "$dir/applications" ] || [ -d "$dir/applnk" ] || continue
+        for file in "$dir"/applications/*.desktop "$dir"/applications/*/*.desktop "$dir"/applnk/*.desktop "$dir"/applnk/*/*.desktop; do
+            [ -r "$file" ] || continue
+            # Check to make sure it's worth the processing.
+            grep -q "^Exec.*$base" "$file" || continue
+            # Make sure it's a visible desktop file (e.g. not "preferred-web-browser.desktop").
+            grep -Eq "^(NoDisplay|Hidden)=true" "$file" && continue
+            command="`grep -E "^Exec(\[[^]=]*])?=" "$file" | cut -d= -f 2- | first_word`"
+            command="`command -v "$command"`"
+            if [ x"`readlink -f "$command"`" = x"$binary" ]; then
+                # Fix any double slashes that got added path composition
+                echo "$file" | sed -e 's,//*,/,g'
+                return
+            fi
+        done
+    done
+}
+
+#-------------------------------------------------------------
+# map a .desktop file to a binary
+desktop_file_to_binary()
+{
+    search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+    desktop="`basename "$1"`"
+    IFS=:
+    for dir in $search; do
+        unset IFS
+        [ "$dir" ] && [ -d "$dir/applications" ] || [ -d "$dir/applnk" ] || continue
+        # Check if desktop file contains -
+        if [ "${desktop#*-}" != "$desktop" ]; then
+            vendor=${desktop%-*}
+            app=${desktop#*-}
+            if [ -r $dir/applications/$vendor/$app ]; then
+                file_path=$dir/applications/$vendor/$app
+            elif [ -r $dir/applnk/$vendor/$app ]; then
+                file_path=$dir/applnk/$vendor/$app
+            fi
+        fi
+        if test -z "$file_path" ; then
+            for indir in "$dir"/applications/ "$dir"/applications/*/ "$dir"/applnk/ "$dir"/applnk/*/; do
+                file="$indir/$desktop"
+                if [ -r "$file" ]; then
+                    file_path=$file
+                    break
+                fi
+            done
+        fi
+        if [ -r "$file_path" ]; then
+            # Remove any arguments (%F, %f, %U, %u, etc.).
+            command="`grep -E "^Exec(\[[^]=]*])?=" "$file_path" | cut -d= -f 2- | first_word`"
+            command="`command -v "$command"`"
+            readlink -f "$command"
+            return
+        fi
+    done
+}
+
+#-------------------------------------------------------------
+# Exit script on successfully completing the desired operation
+
+exit_success()
+{
+    if [ $# -gt 0 ]; then
+        echo "$@"
+        echo
+    fi
+
+    exit 0
+}
+
+
+#-----------------------------------------
+# Exit script on malformed arguments, not enough arguments
+# or missing required option.
+# prints usage information
+
+exit_failure_syntax()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-open: $@" >&2
+        echo "Try 'xdg-open --help' for more information." >&2
+    else
+        usage
+        echo "Use 'man xdg-open' or 'xdg-open --manual' for additional info."
+    fi
+
+    exit 1
+}
+
+#-------------------------------------------------------------
+# Exit script on missing file specified on command line
+
+exit_failure_file_missing()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-open: $@" >&2
+    fi
+
+    exit 2
+}
+
+#-------------------------------------------------------------
+# Exit script on failure to locate necessary tool applications
+
+exit_failure_operation_impossible()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-open: $@" >&2
+    fi
+
+    exit 3
+}
+
+#-------------------------------------------------------------
+# Exit script on failure returned by a tool application
+
+exit_failure_operation_failed()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-open: $@" >&2
+    fi
+
+    exit 4
+}
+
+#------------------------------------------------------------
+# Exit script on insufficient permission to read a specified file
+
+exit_failure_file_permission_read()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-open: $@" >&2
+    fi
+
+    exit 5
+}
+
+#------------------------------------------------------------
+# Exit script on insufficient permission to write a specified file
+
+exit_failure_file_permission_write()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-open: $@" >&2
+    fi
+
+    exit 6
+}
+
+check_input_file()
+{
+    if [ ! -e "$1" ]; then
+        exit_failure_file_missing "file '$1' does not exist"
+    fi
+    if [ ! -r "$1" ]; then
+        exit_failure_file_permission_read "no permission to read file '$1'"
+    fi
+}
+
+check_vendor_prefix()
+{
+    file_label="$2"
+    [ -n "$file_label" ] || file_label="filename"
+    file=`basename "$1"`
+    case "$file" in
+       [[:alpha:]]*-*)
+         return
+         ;;
+    esac
+
+    echo "xdg-open: $file_label '$file' does not have a proper vendor prefix" >&2
+    echo 'A vendor prefix consists of alpha characters ([a-zA-Z]) and is terminated' >&2
+    echo 'with a dash ("-"). An example '"$file_label"' is '"'example-$file'" >&2
+    echo "Use --novendor to override or 'xdg-open --manual' for additional info." >&2
+    exit 1
+}
+
+check_output_file()
+{
+    # if the file exists, check if it is writeable
+    # if it does not exists, check if we are allowed to write on the directory
+    if [ -e "$1" ]; then
+        if [ ! -w "$1" ]; then
+            exit_failure_file_permission_write "no permission to write to file '$1'"
+        fi
+    else
+        DIR=`dirname "$1"`
+        if [ ! -w "$DIR" ] || [ ! -x "$DIR" ]; then
+            exit_failure_file_permission_write "no permission to create file '$1'"
+        fi
+    fi
+}
+
+#----------------------------------------
+# Checks for shared commands, e.g. --help
+
+check_common_commands()
+{
+    while [ $# -gt 0 ] ; do
+        parm="$1"
+        shift
+
+        case "$parm" in
+            --help)
+            usage
+            echo "Use 'man xdg-open' or 'xdg-open --manual' for additional info."
+            exit_success
+            ;;
+
+            --manual)
+            manualpage
+            exit_success
+            ;;
+
+            --version)
+            echo "xdg-open 1.1.3+"
+            exit_success
+            ;;
+        esac
+    done
+}
+
+check_common_commands "$@"
+
+[ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && unset XDG_UTILS_DEBUG_LEVEL;
+if [ ${XDG_UTILS_DEBUG_LEVEL-0} -lt 1 ]; then
+    # Be silent
+    xdg_redirect_output=" > /dev/null 2> /dev/null"
+else
+    # All output to stderr
+    xdg_redirect_output=" >&2"
+fi
+
+#--------------------------------------
+# Checks for known desktop environments
+# set variable DE to the desktop environments name, lowercase
+
+detectDE()
+{
+    # see https://bugs.freedesktop.org/show_bug.cgi?id=34164
+    unset GREP_OPTIONS
+
+    if [ -n "${XDG_CURRENT_DESKTOP}" ]; then
+      case "${XDG_CURRENT_DESKTOP}" in
+         # only recently added to menu-spec, pre-spec X- still in use
+         Cinnamon|X-Cinnamon)
+           DE=cinnamon;
+           ;;
+         ENLIGHTENMENT)
+           DE=enlightenment;
+           ;;
+         # GNOME, GNOME-Classic:GNOME, or GNOME-Flashback:GNOME
+         GNOME*)
+           DE=gnome;
+           ;;
+         KDE)
+           DE=kde;
+           ;;
+         DEEPIN|Deepin|deepin)
+           DE=deepin;
+           ;;
+         LXDE)
+           DE=lxde;
+           ;;
+         LXQt)
+           DE=lxqt;
+           ;;
+         MATE)
+           DE=mate;
+           ;;
+         XFCE)
+           DE=xfce
+           ;;
+         X-Generic)
+           DE=generic
+           ;;
+      esac
+    fi
+
+    if [ x"$DE" = x"" ]; then
+      # classic fallbacks
+      if [ x"$KDE_FULL_SESSION" != x"" ]; then DE=kde;
+      elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome;
+      elif [ x"$MATE_DESKTOP_SESSION_ID" != x"" ]; then DE=mate;
+      elif `dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.GetNameOwner string:org.gnome.SessionManager > /dev/null 2>&1` ; then DE=gnome;
+      elif xprop -root _DT_SAVE_MODE 2> /dev/null | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce;
+      elif xprop -root 2> /dev/null | grep -i '^xfce_desktop_window' >/dev/null 2>&1; then DE=xfce
+      elif echo $DESKTOP | grep -q '^Enlightenment'; then DE=enlightenment;
+      elif [ x"$LXQT_SESSION_CONFIG" != x"" ]; then DE=lxqt;
+      fi
+    fi
+
+    if [ x"$DE" = x"" ]; then
+      # fallback to checking $DESKTOP_SESSION
+      case "$DESKTOP_SESSION" in
+         gnome)
+           DE=gnome;
+           ;;
+         LXDE|Lubuntu)
+           DE=lxde;
+           ;;
+         MATE)
+           DE=mate;
+           ;;
+         xfce|xfce4|'Xfce Session')
+           DE=xfce;
+           ;;
+      esac
+    fi
+
+    if [ x"$DE" = x"" ]; then
+      # fallback to uname output for other platforms
+      case "$(uname 2>/dev/null)" in
+        CYGWIN*)
+          DE=cygwin;
+          ;;
+        Darwin)
+          DE=darwin;
+          ;;
+      esac
+    fi
+
+    if [ x"$DE" = x"gnome" ]; then
+      # gnome-default-applications-properties is only available in GNOME 2.x
+      # but not in GNOME 3.x
+      command -v gnome-default-applications-properties > /dev/null || DE="gnome3"
+    fi
+
+    if [ -f "$XDG_RUNTIME_DIR/flatpak-info" ]; then
+      DE="flatpak"
+    fi
+}
+
+#----------------------------------------------------------------------------
+# kfmclient exec/openURL can give bogus exit value in KDE <= 3.5.4
+# It also always returns 1 in KDE 3.4 and earlier
+# Simply return 0 in such case
+
+kfmclient_fix_exit_code()
+{
+    version=`LC_ALL=C.UTF-8 kde-config --version 2>/dev/null | grep '^KDE'`
+    major=`echo $version | sed 's/KDE.*: \([0-9]\).*/\1/'`
+    minor=`echo $version | sed 's/KDE.*: [0-9]*\.\([0-9]\).*/\1/'`
+    release=`echo $version | sed 's/KDE.*: [0-9]*\.[0-9]*\.\([0-9]\).*/\1/'`
+    test "$major" -gt 3 && return $1
+    test "$minor" -gt 5 && return $1
+    test "$release" -gt 4 && return $1
+    return 0
+}
+
+#----------------------------------------------------------------------------
+# Returns true if there is a graphical display attached.
+
+has_display()
+{
+    if [ -n "$DISPLAY" ] || [ -n "$WAYLAND_DISPLAY" ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+# This handles backslashes but not quote marks.
+last_word()
+{
+    read first rest
+    echo "$rest"
+}
+
+# Get the value of a key in a desktop file's Desktop Entry group.
+# Example: Use get_key foo.desktop Exec
+# to get the values of the Exec= key for the Desktop Entry group.
+get_key()
+{
+    local file="${1}"
+    local key="${2}"
+    local desktop_entry=""
+
+    IFS_="${IFS}"
+    IFS=""
+    while read line
+    do
+        case "$line" in
+            "[Desktop Entry]")
+                desktop_entry="y"
+            ;;
+            # Reset match flag for other groups
+            "["*)
+                desktop_entry=""
+            ;;
+            "${key}="*)
+                # Only match Desktop Entry group
+                if [ -n "${desktop_entry}" ]
+                then
+                    echo "${line}" | cut -d= -f 2-
+                fi
+        esac
+    done < "${file}"
+    IFS="${IFS_}"
+}
+
+# Returns true if argument is a file:// URL or path
+is_file_url_or_path()
+{
+    if echo "$1" | grep -q '^file://' \
+            || ! echo "$1" | grep -Eq '^[[:alpha:]][[:alpha:][:digit:]+\.\-]*:'; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+# If argument is a file URL, convert it to a (percent-decoded) path.
+# If not, leave it as it is.
+file_url_to_path()
+{
+    local file="$1"
+    if echo "$file" | grep -q '^file://\(localhost\)\?/'; then
+        file=${file#file://localhost}
+        file=${file#file://}
+        file=${file%%#*}
+        file=$(echo "$file" | sed -r 's/\?.*$//')
+        local printf=printf
+        if [ -x /usr/bin/printf ]; then
+            printf=/usr/bin/printf
+        fi
+        file=$($printf "$(echo "$file" | sed -e 's@%\([a-f0-9A-F]\{2\}\)@\\x\1@g')")
+    fi
+    echo "$file"
+}
+
+open_cygwin()
+{
+    cygstart "$1"
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_darwin()
+{
+    open "$1"
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_kde()
+{
+    if [ -n "${KDE_SESSION_VERSION}" ]; then
+      case "${KDE_SESSION_VERSION}" in
+        4)
+          kde-open "$1"
+        ;;
+        5)
+          kde-open${KDE_SESSION_VERSION} "$1"
+        ;;
+      esac
+    else
+        kfmclient exec "$1"
+        kfmclient_fix_exit_code $?
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_deepin()
+{
+    if dde-open -version >/dev/null 2>&1; then
+        dde-open "$1"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_gnome3()
+{
+    if gio help open 2>/dev/null 1>&2; then
+        gio open "$1"
+    elif gvfs-open --help 2>/dev/null 1>&2; then
+        gvfs-open "$1"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_gnome()
+{
+    if gio help open 2>/dev/null 1>&2; then
+        gio open "$1"
+    elif gvfs-open --help 2>/dev/null 1>&2; then
+        gvfs-open "$1"
+    elif gnome-open --help 2>/dev/null 1>&2; then
+        gnome-open "$1"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_mate()
+{
+    if gio help open 2>/dev/null 1>&2; then
+        gio open "$1"
+    elif gvfs-open --help 2>/dev/null 1>&2; then
+        gvfs-open "$1"
+    elif mate-open --help 2>/dev/null 1>&2; then
+        mate-open "$1"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_xfce()
+{
+    if exo-open --help 2>/dev/null 1>&2; then
+        exo-open "$1"
+    elif gio help open 2>/dev/null 1>&2; then
+        gio open "$1"
+    elif gvfs-open --help 2>/dev/null 1>&2; then
+        gvfs-open "$1"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_enlightenment()
+{
+    if enlightenment_open --help 2>/dev/null 1>&2; then
+        enlightenment_open "$1"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_flatpak()
+{
+    gdbus call --session \
+        --dest org.freedesktop.portal.Desktop \
+        --object-path /org/freedesktop/portal/desktop \
+        --method org.freedesktop.portal.OpenURI.OpenURI \
+        "" "$1" {}
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+#-----------------------------------------
+# Recursively search .desktop file
+
+search_desktop_file()
+{
+    local default="$1"
+    local dir="$2"
+    local target="$3"
+
+    local file=""
+    # look for both vendor-app.desktop, vendor/app.desktop
+    if [ -r "$dir/$default" ]; then
+      file="$dir/$default"
+    elif [ -r "$dir/`echo $default | sed -e 's|-|/|'`" ]; then
+      file="$dir/`echo $default | sed -e 's|-|/|'`"
+    fi
+
+    if [ -r "$file" ] ; then
+        command="$(get_key "${file}" "Exec" | first_word)"
+        icon="$(get_key "${file}" "Icon")"
+        # FIXME: Actually LC_MESSAGES should be used as described in
+        # http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s04.html
+        localised_name="$(get_key "${file}" "Name")"
+        set -- $(get_key "${file}" "Exec" | last_word)
+        # We need to replace any occurrence of "%f", "%F" and
+        # the like by the target file. We examine each
+        # argument and append the modified argument to the
+        # end then shift.
+        local args=$#
+        local replaced=0
+        while [ $args -gt 0 ]; do
+            case $1 in
+                %[c])
+                    replaced=1
+                    arg="${localised_name}"
+                    shift
+                    set -- "$@" "$arg"
+                    ;;
+                %[fFuU])
+                    replaced=1
+                    arg="$target"
+                    shift
+                    set -- "$@" "$arg"
+                    ;;
+                %[i])
+                    replaced=1
+                    shift
+                    set -- "$@" "--icon" "$icon"
+                    ;;
+                *)
+                    arg="$1"
+                    shift
+                    set -- "$@" "$arg"
+                    ;;
+            esac
+            args=$(( $args - 1 ))
+        done
+        [ $replaced -eq 1 ] || set -- "$@" "$target"
+        env "$command" "$@"
+
+        if [ $? -eq 0 ]; then
+            exit_success
+        fi
+    fi
+
+    for d in "$dir/"*/; do
+        [ -d "$d" ] && search_desktop_file "$default" "$d" "$target"
+    done
+}
+
+
+open_generic_xdg_mime()
+{
+    filetype="$2"
+    default=`xdg-mime query default "$filetype"`
+    if [ -n "$default" ] ; then
+        xdg_user_dir="$XDG_DATA_HOME"
+        [ -n "$xdg_user_dir" ] || xdg_user_dir="$HOME/.local/share"
+
+        xdg_system_dirs="$XDG_DATA_DIRS"
+        [ -n "$xdg_system_dirs" ] || xdg_system_dirs=/usr/local/share/:/usr/share/
+
+DEBUG 3 "$xdg_user_dir:$xdg_system_dirs"
+        for x in `echo "$xdg_user_dir:$xdg_system_dirs" | sed 's/:/ /g'`; do
+            search_desktop_file "$default" "$x/applications/" "$1"
+        done
+    fi
+}
+
+open_generic_xdg_file_mime()
+{
+    filetype=`xdg-mime query filetype "$1" | sed "s/;.*//"`
+    open_generic_xdg_mime "$1" "$filetype"
+}
+
+open_generic_xdg_x_scheme_handler()
+{
+    scheme="`echo $1 | sed -n 's/\(^[[:alnum:]+\.-]*\):.*$/\1/p'`"
+    if [ -n $scheme ]; then
+        filetype="x-scheme-handler/$scheme"
+        open_generic_xdg_mime "$1" "$filetype"
+    fi
+}
+
+has_single_argument()
+{
+  test $# = 1
+}
+
+open_envvar()
+{
+    local oldifs="$IFS"
+    local browser browser_with_arg
+
+    IFS=":"
+    for browser in $BROWSER; do
+        IFS="$oldifs"
+
+        if [ -z "$browser" ]; then
+            continue
+        fi
+
+        if echo "$browser" | grep -q %s; then
+            # Avoid argument injection.
+            # See https://bugs.freedesktop.org/show_bug.cgi?id=103807
+            # URIs don't have IFS characters spaces anyway.
+            has_single_argument $1 && $(printf "$browser" "$1")
+        else
+            $browser "$1"
+        fi
+
+        if [ $? -eq 0 ]; then
+            exit_success
+        fi
+    done
+}
+
+open_generic()
+{
+    if is_file_url_or_path "$1"; then
+        local file="$(file_url_to_path "$1")"
+
+        check_input_file "$file"
+
+        if has_display; then
+            filetype=`xdg-mime query filetype "$file" | sed "s/;.*//"`
+            open_generic_xdg_mime "$file" "$filetype"
+        fi
+
+        if command -v run-mailcap >/dev/null; then
+            run-mailcap --action=view "$file"
+            if [ $? -eq 0 ]; then
+                exit_success
+            fi
+        fi
+
+        if has_display && mimeopen -v 2>/dev/null 1>&2; then
+            mimeopen -L -n "$file"
+            if [ $? -eq 0 ]; then
+                exit_success
+            fi
+        fi
+    fi
+
+    if has_display; then
+        open_generic_xdg_x_scheme_handler "$1"
+    fi
+
+    if [ -n "$BROWSER" ]; then
+        open_envvar "$1"
+    fi
+
+    # if BROWSER variable is not set, check some well known browsers instead
+    if [ x"$BROWSER" = x"" ]; then
+        BROWSER=www-browser:links2:elinks:links:lynx:w3m
+        if has_display; then
+            BROWSER=x-www-browser:firefox:iceweasel:seamonkey:mozilla:epiphany:konqueror:chromium:chromium-browser:google-chrome:$BROWSER
+        fi
+    fi
+
+    open_envvar "$1"
+
+    exit_failure_operation_impossible "no method available for opening '$1'"
+}
+
+open_lxde()
+{
+
+    # pcmanfm only knows how to handle file:// urls and filepaths, it seems.
+    if pcmanfm --help >/dev/null 2>&1 && is_file_url_or_path "$1"; then
+        local file="$(file_url_to_path "$1")"
+
+        # handle relative paths
+        if ! echo "$file" | grep -q ^/; then
+            file="$(pwd)/$file"
+        fi
+
+        pcmanfm "$file"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+open_lxqt()
+{
+    open_generic "$1"
+}
+
+[ x"$1" != x"" ] || exit_failure_syntax
+
+url=
+while [ $# -gt 0 ] ; do
+    parm="$1"
+    shift
+
+    case "$parm" in
+      -*)
+        exit_failure_syntax "unexpected option '$parm'"
+        ;;
+
+      *)
+        if [ -n "$url" ] ; then
+            exit_failure_syntax "unexpected argument '$parm'"
+        fi
+        url="$parm"
+        ;;
+    esac
+done
+
+if [ -z "${url}" ] ; then
+    exit_failure_syntax "file or URL argument missing"
+fi
+
+detectDE
+
+if [ x"$DE" = x"" ]; then
+    DE=generic
+fi
+
+DEBUG 2 "Selected DE $DE"
+
+# sanitize BROWSER (avoid calling ourselves in particular)
+case "${BROWSER}" in
+    *:"xdg-open"|"xdg-open":*)
+        BROWSER=$(echo $BROWSER | sed -e 's|:xdg-open||g' -e 's|xdg-open:||g')
+        ;;
+    "xdg-open")
+        BROWSER=
+        ;;
+esac
+
+case "$DE" in
+    kde)
+    open_kde "$url"
+    ;;
+
+    deepin)
+    open_deepin "$url"
+    ;;
+
+    gnome3|cinnamon)
+    open_gnome3 "$url"
+    ;;
+
+    gnome)
+    open_gnome "$url"
+    ;;
+
+    mate)
+    open_mate "$url"
+    ;;
+
+    xfce)
+    open_xfce "$url"
+    ;;
+
+    lxde)
+    open_lxde "$url"
+    ;;
+
+    lxqt)
+    open_lxqt "$url"
+    ;;
+
+    enlightenment)
+    open_enlightenment "$url"
+    ;;
+
+    cygwin)
+    open_cygwin "$url"
+    ;;
+
+    darwin)
+    open_darwin "$url"
+    ;;
+
+    flatpak)
+    open_flatpak "$url"
+    ;;
+
+    generic)
+    open_generic "$url"
+    ;;
+
+    *)
+    exit_failure_operation_impossible "no method available for opening '$url'"
+    ;;
+esac
diff --git a/vendor/opener-0.5.2/tests/version-numbers.rs b/vendor/opener-0.5.2/tests/version-numbers.rs
new file mode 100644
index 000000000..cfcb2586f
--- /dev/null
+++ b/vendor/opener-0.5.2/tests/version-numbers.rs
@@ -0,0 +1,4 @@
+#[test]

+fn test_html_root_url() {

+    version_sync::assert_html_root_url_updated!("src/lib.rs");

+}