From 5b62e442c2450036f32507888721ffcdd051a565 Mon Sep 17 00:00:00 2001
From: Fredrik Ekre <ekrefredrik@gmail.com>
Date: Wed, 6 Nov 2024 03:05:26 +0100
Subject: [PATCH] Add --version option to Runic.main (#92)

---
 src/Runic.jl     |  4 ++++
 src/main.jl      | 11 +++++++++++
 test/runtests.jl |  7 +++++++
 3 files changed, 22 insertions(+)

diff --git a/src/Runic.jl b/src/Runic.jl
index e777dd2..a9c06a1 100644
--- a/src/Runic.jl
+++ b/src/Runic.jl
@@ -5,6 +5,10 @@ module Runic
 using JuliaSyntax:
     JuliaSyntax, @K_str, @KSet_str
 
+const RUNIC_VERSION = pkgversion(@__MODULE__)
+# XXX: This should probably be handled by Base.
+Base.include_dependency(joinpath(pkgdir(@__MODULE__), "Project.toml"))
+
 # Debug and assert utilities
 include("debug.jl")
 include("JuliaSyntax.jl")
diff --git a/src/main.jl b/src/main.jl
index 4d7951b..8008cc2 100644
--- a/src/main.jl
+++ b/src/main.jl
@@ -140,11 +140,19 @@ function print_help()
                -o <file>, --output=<file>
                    File to write formatted output to. If no output is given, or if the file
                    is `-`, output is written to stdout.
+
+               --version
+                   Print Runic and julia version information.
         """
     )
     return
 end
 
+function print_version()
+    println(stdout, "runic version $(RUNIC_VERSION), julia version $(VERSION)")
+    return
+end
+
 function maybe_expand_directory!(outfiles, dir)
     if !isdir(dir)
         # Assumed to be a file, checked when using it
@@ -205,6 +213,9 @@ function main(argv)
         elseif x == "--help"
             print_help()
             return errno
+        elseif x == "--version"
+            print_version()
+            return errno
         elseif x == "-q" || x == "--quiet"
             quiet = true
         elseif x == "-v" || x == "--verbose"
diff --git a/test/runtests.jl b/test/runtests.jl
index 7b85dca..2f1c1a5 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1487,6 +1487,13 @@ end
         @test isempty(fd2)
     end
 
+    # runic --version
+    let (rc, fd1, fd2) = runic(["--version"])
+        @test rc == 0
+        @test occursin("runic version $(Runic.RUNIC_VERSION), julia version $(VERSION)", fd1)
+        @test isempty(fd2)
+    end
+
     # runic <stdin >stdout
     for argv in [
             String[], ["-"],