[New] Add lts/foo support to remote commands.

- `nvm ls-remote`
 - `nvm version-remote`
 - `nvm install`
 - `nvm uninstall`

Document existing support:
 - `nvm use`
 - `nvm exec`
 - `nvm run`

Fixes #1208.

README.markdown

@@ -160,13 +160,13 @@ In place of a version pointer like "0.10" or "5.0" or "4.2.1", you can use the f
 
 ### Long-term support
 Node has a [schedule](https://github.com/nodejs/LTS#lts_schedule) for long-term support (LTS) You can reference LTS versions in aliases and `.nvmrc` files with the notation `lts/*` for the latest LTS, and `lts/argon` for LTS releases from the "argon" line, for example. In addition, the following commands support LTS arguments:
- - `nvm install --lts` / `nvm install --lts=argon`
- - `nvm uninstall --lts` / `nvm uninstall --lts=argon`
- - `nvm use --lts` / `nvm use --lts=argon`
- - `nvm exec --lts` / `nvm exec --lts=argon`
- - `nvm run --lts` / `nvm run --lts=argon`
- - `nvm ls-remote --lts` / `nvm ls-remote --lts=argon`
- - `nvm version-remote --lts` / `nvm version-remote --lts=argon`
+ - `nvm install --lts` / `nvm install --lts=argon` / `nvm install 'lts/*'` / `nvm install lts/argon`
+ - `nvm uninstall --lts` / `nvm uninstall --lts=argon` / `nvm uninstall 'lts/*'` / `nvm uninstall lts/argon`
+ - `nvm use --lts` / `nvm use --lts=argon` / `nvm use 'lts/*'` / `nvm use lts/argon`
+ - `nvm exec --lts` / `nvm exec --lts=argon` / `nvm exec 'lts/*'` / `nvm exec lts/argon`
+ - `nvm run --lts` / `nvm run --lts=argon` / `nvm run 'lts/*'` / `nvm run lts/argon`
+ - `nvm ls-remote --lts` / `nvm ls-remote --lts=argon` `nvm ls-remote 'lts/*'` / `nvm ls-remote lts/argon`
+ - `nvm version-remote --lts` / `nvm version-remote --lts=argon` / `nvm version-remote 'lts/*'` / `nvm version-remote lts/argon`
 
 Any time your local copy of `nvm` connects to https://nodejs.org, it will re-create the appropriate local aliases for all available LTS lines. These aliases (stored under `$NVM_DIR/alias/lts`), are managed by `nvm`, and you should not modify, remove, or create these files - expect your changes to be undone, and expect meddling with these files to cause bugs that will likely not be supported.
 

nvm.sh

@@ -2066,7 +2066,18 @@ nvm() {
         shift
       fi
 
-      VERSION="$(NVM_VERSION_ONLY=true NVM_LTS="${LTS-}" nvm_remote_version "$provided_version")"
+      case "${provided_version}" in
+        'lts/*')
+          LTS='*'
+          provided_version=''
+        ;;
+        lts/*)
+          LTS="${provided_version##lts/}"
+          provided_version=''
+        ;;
+      esac
+
+      VERSION="$(NVM_VERSION_ONLY=true NVM_LTS="${LTS-}" nvm_remote_version "${provided_version}")"
 
       if [ "_$VERSION" = "_N/A" ]; then
         local LTS_MSG
@@ -2200,9 +2211,12 @@ nvm() {
       PATTERN="${1-}"
       case "${PATTERN-}" in
         --) ;;
-        --lts)
+        --lts | 'lts/*')
           VERSION="$(nvm_match_version "lts/*")"
         ;;
+        lts/*)
+          VERSION="$(nvm_match_version "lts/${PATTERN##lts/}")"
+        ;;
         --lts=*)
           VERSION="$(nvm_match_version "lts/${PATTERN##--lts=}")"
         ;;
@@ -2614,7 +2628,10 @@ nvm() {
       do
         case "${1-}" in
           --) ;;
-          --lts) LTS='*' ;;
+          --lts)
+            LTS='*'
+            NVM_FLAVOR="${NVM_NODE_PREFIX}"
+          ;;
           --lts=*)
             LTS="${1##--lts=}"
             NVM_FLAVOR="${NVM_NODE_PREFIX}"
@@ -2625,14 +2642,24 @@ nvm() {
             return 55;
           ;;
           *)
-            if [ -z "$PATTERN" ]; then
+            if [ -z "${PATTERN-}" ]; then
               PATTERN="${1-}"
-              if [ -z "$NVM_FLAVOR" ]; then
-                case "_$PATTERN" in
-                  "_$NVM_IOJS_PREFIX" | "_$NVM_NODE_PREFIX")
-                    NVM_FLAVOR="$PATTERN"
+              if [ -z "${NVM_FLAVOR-}" ]; then
+                case "${PATTERN}" in
+                  "${NVM_IOJS_PREFIX}" | "${NVM_NODE_PREFIX}")
+                    NVM_FLAVOR="${PATTERN}"
                     PATTERN=""
                   ;;
+                  'lts/*')
+                    LTS='*'
+                    PATTERN=''
+                    NVM_FLAVOR="${NVM_NODE_PREFIX}"
+                  ;;
+                  lts/*)
+                    LTS="${PATTERN##lts/}"
+                    PATTERN=''
+                    NVM_FLAVOR="${NVM_NODE_PREFIX}"
+                  ;;
                 esac
               fi
             fi
@@ -2879,6 +2906,16 @@ $NVM_LS_REMOTE_POST_MERGED_OUTPUT" | nvm_grep -v "N/A" | command sed '/^$/d')"
         esac
         shift
       done
+      case "${PATTERN}" in
+        'lts/*')
+          NVM_LTS='*'
+          unset PATTERN
+        ;;
+        lts/*)
+          NVM_LTS="${PATTERN##lts/}"
+          unset PATTERN
+        ;;
+      esac
       NVM_VERSION_ONLY=true NVM_LTS="${NVM_LTS-}" nvm_remote_version "${PATTERN:-node}"
     ;;
     "--version" )

test/fast/Unit tests/nvm version-remote

@@ -32,6 +32,14 @@ OUTPUT="$(nvm version-remote --lts=argon foo)"
 EXPECTED_OUTPUT='NVM_VERSION_ONLY:true,NVM_LTS:argon,PATTERN:foo'
 [ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "\`nvm version-remote --lts=argon foo\` called nvm_remote_version with >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"
 
+OUTPUT="$(nvm version-remote lts/foo)"
+EXPECTED_OUTPUT='NVM_VERSION_ONLY:true,NVM_LTS:foo,PATTERN:'
+[ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "\`nvm version-remote lts/foo\` called nvm_remote_version with >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"
+
+OUTPUT="$(nvm version-remote 'lts/*')"
+EXPECTED_OUTPUT='NVM_VERSION_ONLY:true,NVM_LTS:*,PATTERN:'
+[ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "\`nvm version-remote lts/*\` called nvm_remote_version with >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"
+
 set +ex # needed for stderr
 OUTPUT="$(nvm version-remote --foo bar 2>&1)"
 set -ex