Generate the man page in the standardized directory

Author: Marek Suchánek

build.rs

@@ -14,13 +14,16 @@ mod cmd_line;
 use cmd_line::Cli;
 
 fn main() -> std::io::Result<()> {
+    let out_dir =
+        std::path::PathBuf::from(std::env::var_os("OUT_DIR").ok_or(std::io::ErrorKind::NotFound)?);
+
     let cmd: clap::Command = Cli::command();
 
     let man = clap_mangen::Man::new(cmd);
     let mut buffer: Vec<u8> = Default::default();
     man.render(&mut buffer)?;
 
-    std::fs::write("newdoc.1", buffer)?;
+    std::fs::write(out_dir.join("newdoc.1"), buffer)?;
 
     Ok(())
 }

newdoc.spec

@@ -41,7 +41,7 @@ install -m 0755 target/release/%{name} %{buildroot}%{_bindir}/%{name}
 # An alternative way to install the binary using cargo.
 # cargo install --path . --root %{buildroot}/usr
 # Compress the man page
-gzip %{name}.1
+gzip -c target/release/build/%{name}-*/out/%{name}.1 > %{name}.1.gz
 # Install the man page into the chroot environment.
 install -m 0644 %{name}.1.gz %{buildroot}%{_mandir}/man1/%{name}.1.gz