fix(check): confirm that dot in on the PATH

If not, it can be installed via the `graphviz` package.

See #886

CHANGELOG.md

@@ -5,6 +5,7 @@
 #### Fixed
 
 - Zsh completions of `-S`.
+- `check`: confirm that `dot` is on the system. If missing, it belongs to the `graphviz` package.
 
 ## 4.0.1
 

rust/aura-pm/src/command/check.rs

@@ -78,6 +78,7 @@ fn environment(fll: &FluentLanguageLoader) {
     editor(fll);
     java(fll);
     executable!(fll, "bat", "check-env-exec", exec = "bat");
+    executable!(fll, "dot", "check-env-exec", exec = "dot");
     executable!(fll, "fd", "check-env-exec", exec = "fd");
     executable!(fll, "git", "check-env-exec", exec = "git");
     executable!(fll, "rg", "check-env-exec", exec = "rg");

rust/aura-pm/src/flags.rs

@@ -406,7 +406,7 @@ pub enum SubCmd {
     Check(Check),
     /// View various configuration settings and files.
     Conf(Conf),
-    /// Output a dependency graph in DOT format.
+    /// Output a dependency graph.
     Deps(Deps),
     /// State of Free Software installed on the system.
     Free(Free),
@@ -1294,7 +1294,7 @@ pub struct Aur {
     #[clap(long, display_order = 5)]
     pub noconfirm: bool,
 
-    /// (Makepkg) Do not run the check() function the PKGBUILD.
+    /// (Makepkg) Do not run the check() function of the PKGBUILD.
     #[clap(long, display_order = 5)]
     pub nocheck: bool,