feat(clipboard): implement clipboard integration (#91)

* feat(clipboard): implement clipboard integration

Add the --clipboard flag and implement functionality to make image available on the clipboard using wl-clipboard-rs.

* style(format): apply code formatting to cli.rs

* feat(clipboard): implement fork wait for clipboard

Add functionality offering image on clipboard persistently in the background

* feat(clipboard): inform user about wayshot persisting in background with --clipboard

* feat(clipboard): use tracing::warn instead of print if fork fails

* feat(clipboard): Switch from the fork crate to the nix crate for daemonization

* style(format): code formatting to wayshot.rs

* style(typo): corrected a typo in the comments

wayshot/Cargo.toml

@@ -33,6 +33,9 @@ image = { version = "0.24", default-features = false, features = [
 dialoguer = { version = "0.11.0", features = ["fuzzy-select"] }
 eyre = "0.6.8"
 
+wl-clipboard-rs = "0.8.0"
+nix = { version = "0.28.0", features = ["process"] }
+
 [[bin]]
 name = "wayshot"
 path = "src/wayshot.rs"

wayshot/src/cli.rs

@@ -11,10 +11,14 @@ use clap::builder::TypedValueParser;
 #[derive(Parser)]
 #[command(version, about)]
 pub struct Cli {
-    /// Where to save the screenshot, "-" for stdout. Defaults to "$UNIX_TIMESTAMP-wayshot.$EXTENSION".
+    /// Where to save the screenshot, "-" for stdout. Defaults to "$UNIX_TIMESTAMP-wayshot.$EXTENSION" unless --clipboard is present.
     #[arg(value_name = "OUTPUT")]
     pub file: Option<PathBuf>,
 
+    /// Copy image to clipboard along with [OUTPUT] or stdout. wayshot persists in the background to offer the image till the clipboard is overwritten.
+    #[arg(long)]
+    pub clipboard: bool,
+
     /// Log level to be used for printing to stderr
     #[arg(long, default_value = "info", value_parser = clap::builder::PossibleValuesParser::new(["trace", "debug", "info", "warn", "error"]).map(|s| -> tracing::Level{ s.parse().wrap_err_with(|| format!("Failed to parse log level: {}", s)).unwrap()}))]
     pub log_level: tracing::Level,