From c4c7690dec3e0c6b9ab03128218029c280cd209e Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Thu, 16 Dec 2021 23:01:05 -0800
Subject: [PATCH] [Fix] `ls-remote`/`install`: support `lts/-X` patterns in
 installs

Fixes #2692
---
 nvm.sh                             |  5 +++++
 test/fast/Unit tests/nvm ls-remote | 26 +++++++++++++++++++++++---
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/nvm.sh b/nvm.sh
index b45f12f..6c20f91 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -1465,6 +1465,11 @@ nvm_ls_remote_index_tab() {
 $VERSION_LIST
 EOF
 
+  if [ -n "${LTS-}" ]; then
+    LTS="$(nvm_normalize_lts "lts/${LTS}")"
+    LTS="${LTS#lts/}"
+  fi
+
   VERSIONS="$({ command awk -v lts="${LTS-}" '{
         if (!$1) { next }
         if (lts && $10 ~ /^\-?$/) { next }
diff --git a/test/fast/Unit tests/nvm ls-remote b/test/fast/Unit tests/nvm ls-remote
index 96675b2..933b36d 100755
--- a/test/fast/Unit tests/nvm ls-remote	
+++ b/test/fast/Unit tests/nvm ls-remote	
@@ -31,19 +31,39 @@ nvm_ls_remote_iojs() {
   cat "$REMOTE_IOJS"
 }
 
-EXPECTED_OUTPUT_PATH="$PWD/mocks/nvm ls-remote.txt"
+MOCKS_DIR="$PWD/mocks"
+
+EXPECTED_OUTPUT_PATH="${MOCKS_DIR}/nvm ls-remote.txt"
 OUTPUT="$(nvm ls-remote | sed 's/[ \t]*$//')"
 EXPECTED_OUTPUT="$(cat "$EXPECTED_OUTPUT_PATH" | sed 's/[ \t]*$//' )"
 [ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "bare nvm ls-remote did not output expected sorted versions; got $(echo ">$OUTPUT<") expected $(echo ">$EXPECTED_OUTPUT<")"
 
-EXPECTED_OUTPUT_PATH="$PWD/mocks/nvm ls-remote lts.txt"
+EXPECTED_OUTPUT_PATH="${MOCKS_DIR}/nvm ls-remote lts.txt"
 OUTPUT="$(nvm ls-remote --lts="*" | sed 's/[ \t]*$//')"
 EXPECTED_OUTPUT="$(cat "$EXPECTED_OUTPUT_PATH" | sed 's/[ \t]*$//' )"
 [ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm ls-remote --lts=* did not output expected sorted versions; got $(echo ">$OUTPUT<") expected $(echo ">$EXPECTED_OUTPUT<")"
 
-EXPECTED_OUTPUT_PATH="$PWD/mocks/nvm ls-remote lts.txt"
+EXPECTED_OUTPUT_PATH="${MOCKS_DIR}/nvm ls-remote lts.txt"
 OUTPUT="$(nvm ls-remote "lts/*" | sed 's/[ \t]*$//')"
 EXPECTED_OUTPUT="$(cat "$EXPECTED_OUTPUT_PATH" | sed 's/[ \t]*$//' )"
 [ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm ls-remote lts/* did not output expected sorted versions; got $(echo ">$OUTPUT<") expected $(echo ">$EXPECTED_OUTPUT<")"
 
+EXPECTED_OUTPUT_PATH="${MOCKS_DIR}/nvm ls-remote lts.txt"
+OUTPUT="$(nvm ls-remote "lts/-1" | sed 's/[ \t]*$//')"
+EXPECTED_OUTPUT="$(cat "$EXPECTED_OUTPUT_PATH" | sed 's/[ \t]*$//' )"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm ls-remote lts/* did not output expected sorted versions; got $(echo ">$OUTPUT<") expected $(echo ">$EXPECTED_OUTPUT<")"
+
+LTS_NAMES_PATH="${MOCKS_DIR}/LTS_names.txt"
+LTS_LIST="$(cat "${LTS_NAMES_PATH}" | tail -n +2)"
+
+INDEX=1
+for LTS in $LTS_LIST; do
+    ACTUAL="$(nvm ls-remote "lts/-${INDEX}" | sed 's/[ \t]*$//')"
+    MESSAGE="for lts/-${INDEX} / ${LTS}"
+    EXPECTED="$(nvm ls-remote "lts/${LTS}" | sed 's/[ \t]*$//')"
+    [ "${ACTUAL}" = "${EXPECTED}" ] || die "${MESSAGE}: expected >${EXPECTED}<, got >${ACTUAL}<"
+
+    INDEX=$(($INDEX + 1))
+done
+
 cleanup