From 7aeb03f8139719dba68b483963066261b874e89a Mon Sep 17 00:00:00 2001
From: Danila Fedorin <danila.fedorin@gmail.com>
Date: Sun, 10 Jan 2021 19:57:22 -0800
Subject: [PATCH] Add code to properly link submodules.

---
 blog/builder.sh         |  7 +++++++
 blog/submodule-links.rb | 19 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 blog/submodule-links.rb

diff --git a/blog/builder.sh b/blog/builder.sh
index 6a5fe67..6d3cf9f 100644
--- a/blog/builder.sh
+++ b/blog/builder.sh
@@ -7,6 +7,13 @@ cp -r $src/* .
 # We have to manually edit the configuration.
 sed -i "$urlSub" config.toml
 
+# Run the submodule command in the source .git
+# repo, amending the config.
+cwdir=$(pwd)
+cd $src
+ruby $submodules >> $cwdir/config.toml
+cd $cwdir
+
 # Build site with Hugo
 hugo $extraFlags
 
diff --git a/blog/submodule-links.rb b/blog/submodule-links.rb
new file mode 100644
index 0000000..5bc5bb8
--- /dev/null
+++ b/blog/submodule-links.rb
@@ -0,0 +1,19 @@
+puts "[params]"
+puts "  [params.submoduleLinks]"
+
+`git submodule status --recursive`.lines do |line|
+  hash, path = line[1..].split " "
+  next unless path.start_with? "code/"
+  code_path = path.delete_prefix "code/"
+  url = `git config --file .gitmodules --get 'submodule.#{path}.url'`.chomp.delete_suffix(".git")
+  safe_name = code_path.gsub(/\/|-|_/, "")
+
+  if url =~ /dev.danilafe.com/
+    file_url = "#{url}/src/commit/#{hash}"
+  else
+    raise "Submodule URL not in a known format!"
+  end
+  puts "    [params.submoduleLinks.#{safe_name}]"
+  puts "      path = #{code_path.dump}"
+  puts "      url = #{file_url.dump}"
+end