59 lines
2.0 KiB
Rust
59 lines
2.0 KiB
Rust
//! 把 UTF-8 文本读写适配到当前平台的系统剪贴板命令。
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//! 外部命令失败作为普通错误交给调用方处理；这里不解析或执行剪贴板中的程序文本。
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//!
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//! Clipboard text is always UTF-8, including Finder/LaunchServices launches without LANG.
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use anyhow::{Result, bail};
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#[cfg(target_os = "macos")]
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/// 运行选定平台的剪贴板命令并检查其退出状态。
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fn command(program: &str) -> std::process::Command {
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let mut cmd = std::process::Command::new(program);
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cmd.env("LC_ALL", "en_US.UTF-8")
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.env("LC_CTYPE", "en_US.UTF-8")
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.env("LANG", "en_US.UTF-8");
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cmd
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}
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/// 取得系统剪贴板的 UTF-8 文本，失败作为可显示错误返回。
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pub fn read() -> Result<String> {
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#[cfg(target_os = "macos")]
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{
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let output = command("/usr/bin/pbpaste")
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.arg("-Prefer")
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.arg("txt")
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.output()?;
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if !output.status.success() {
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bail!("system clipboard read failed");
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}
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// Never silently replace invalid bytes in the user's source.
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Ok(String::from_utf8(output.stdout)?)
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}
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#[cfg(not(target_os = "macos"))]
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{
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bail!("system clipboard adapter is not available on this platform")
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}
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}
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/// 将提供的文本交给系统剪贴板命令，不执行文本内容。
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pub fn write(value: &str) -> Result<()> {
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#[cfg(target_os = "macos")]
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{
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use std::io::Write;
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let mut child = command("/usr/bin/pbcopy")
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.stdin(std::process::Stdio::piped())
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.spawn()?;
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let mut stdin = child
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.stdin
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.take()
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.ok_or_else(|| anyhow::anyhow!("clipboard stdin is unavailable"))?;
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stdin.write_all(value.as_bytes())?;
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drop(stdin);
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if !child.wait()?.success() {
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bail!("system clipboard write failed");
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}
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Ok(())
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}
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#[cfg(not(target_os = "macos"))]
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{
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let _ = value;
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bail!("system clipboard adapter is not available on this platform")
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}
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}
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