From 2586e126de313c391eb0afe1045c37cdfd94f4d3 Mon Sep 17 00:00:00 2001
From: Oran Shuster <oranshuster@gmail.com>
Date: Mon, 9 Aug 2021 17:06:44 +0300
Subject: [PATCH] Fetch list of available versions from scala github repo

---
 bin/list-all | 72 ++++++++++++++++++++++++++++++++++------------------
 1 file changed, 48 insertions(+), 24 deletions(-)

diff --git a/bin/list-all b/bin/list-all
index 5d49a38..4979699 100755
--- a/bin/list-all
+++ b/bin/list-all
@@ -1,29 +1,53 @@
 #!/usr/bin/env bash
 
-versions_list=(
-  2.12.0-M4
-  2.12.0-M3
-  2.12.0-M2
-  2.12.0-M1
-  2.11.8
-  2.11.7
-  2.11.6
-  2.11.5
-  2.11.4
-  2.11.2
-  2.11.1
-  2.11.0
-  2.11.0-RC4
-  2.11.0-RC3
-  2.11.0-RC1
-  2.11.0-M8
-)
+# Setup: Pretty much the same as https://github.com/asdf-vm/asdf-elixir/blob/master/bin/list-all
+# Note that the DMD repository returns an empty array for releases, so I used tags instead
+releases_path="https://api.github.com/repos/scala/scala/tags?per_page=100"
+cmd="curl -s"
+if [ -n "$OAUTH_TOKEN" ]; then
+  cmd="$cmd -H 'Authorization: token $OAUTH_TOKEN'"
+fi
+cmd="$cmd \"$releases_path\""
 
-versions = ""
-
-for version in "${versions_list[@]}"
-do
-  versions="${versions} ${version}"
-done
+sort_cmd='sort'
+if sort --help | grep -q -- '-V'; then
+  sort_cmd='sort -V'
+fi
 
+# Extract only Version 2 releases that are not beta or rc.
+# Note that line numbers need to be removed from the grep result.
+versions=$(eval $cmd | grep -oE "name\": \"v2\..{1,6}\"," | sed 's/name\": \"v//;s/\",//;s/-b.*$//;s/-rc.*$//;s/beta.*$//' | uniq | $sort_cmd)
+if [ -z "$versions" ]; then
+  # In some unknown occasion, versions happen to be empty.
+  # To avoid this, if versions is empty, show hard-coded list of versions
+  # from 2.12.0 up to 2.13.6.
+  versions_list=(
+  2.13.6
+  2.13.5
+  2.13.3
+  2.13.2
+  2.13.2
+  2.13.1
+  2.12.14
+  2.12.13
+  2.12.12
+  2.12.11
+  2.12.10
+  2.12.9
+  2.12.8
+  2.12.7
+  2.12.6
+  2.12.5
+  2.12.4
+  2.12.3
+  2.12.2
+  2.12.1
+  2.12.0
+  )
+  versions=""
+  for version in "${versions_list[@]}"
+  do
+    versions="${versions} ${version}"
+  done
+fi
 echo $versions