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Add aliases to versions 

Aliases are stored as plaintext files in the $NVM_DIR/alias dir.
They may store either an explicit version (v0.3.6) or an implied version
("latest"). The latter is a "moving target", and thus possibly
dangerous, but can be useful, too.
master
Isaac Wolkerstorfer 2011-01-22 19:12:13 +01:00
parent 0f6680e8b7
commit a77c632e2a
3 changed files with 61 additions and 19 deletions
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1
.gitignore vendored
View File

@ -1,3 +1,4 @@
HEAD HEAD
src src
v* v*
alias

1
.npmignore
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@ -1,2 +1,3 @@
src src
v* v*
alias

78
nvm.sh
View File

@ -13,21 +13,25 @@ version()
{ {
PATTERN=$1 PATTERN=$1
VERSION='' VERSION=''
if [ -f "$NVM_DIR/alias/$PATTERN" ]; then
version `cat $NVM_DIR/alias/$PATTERN`
return
fi
# If it looks like an explicit version, don't do anything funny # If it looks like an explicit version, don't do anything funny
if [[ $PATTERN == v*.*.* ]]; then if [[ "$PATTERN" == v*.*.* ]]; then
VERSION=$PATTERN VERSION="$PATTERN"
fi fi
# The default version is the current one # The default version is the current one
if [ ! $PATTERN -o $PATTERN = 'current' ]; then if [ ! "$PATTERN" -o "$PATTERN" = 'current' ]; then
VERSION=`node -v 2>/dev/null` VERSION=`node -v 2>/dev/null`
fi fi
if [ $PATTERN = 'stable' ]; then if [ "$PATTERN" = 'stable' ]; then
PATTERN='*.*[02468].' PATTERN='*.*[02468].'
fi fi
if [ $PATTERN = 'latest' ]; then if [ "$PATTERN" = 'latest' ]; then
PATTERN='*.*.' PATTERN='*.*.'
fi fi
if [ $PATTERN = 'all' ]; then if [ "$PATTERN" = 'all' ]; then
(cd $NVM_DIR; ls -dG v* 2>/dev/null || echo "N/A") (cd $NVM_DIR; ls -dG v* 2>/dev/null || echo "N/A")
return return
fi fi
@ -36,8 +40,9 @@ version()
fi fi
if [ ! "$VERSION" ]; then if [ ! "$VERSION" ]; then
echo "N/A" echo "N/A"
return -1
elif [ -e "$NVM_DIR/$VERSION" ]; then elif [ -e "$NVM_DIR/$VERSION" ]; then
(cd $NVM_DIR; ls -dG $VERSION) (cd $NVM_DIR; ls -dG "$VERSION")
else else
echo "$VERSION" echo "$VERSION"
fi fi
@ -55,19 +60,22 @@ nvm()
echo "Node Version Manager" echo "Node Version Manager"
echo echo
echo "Usage:" echo "Usage:"
echo " nvm help Show this message" echo " nvm help Show this message"
echo " nvm install <version> Download and install a <version>" echo " nvm install <version> Download and install a <version>"
echo " nvm use <version> Modify PATH to use <version>" echo " nvm use <version> Modify PATH to use <version>"
echo " nvm ls List versions (installed versions are blue)" echo " nvm ls List versions (installed versions are blue)"
echo " nvm ls <version> List versions matching a given description" echo " nvm ls <version> List versions matching a given description"
echo " nvm deactivate Undo effects of NVM on current shell" echo " nvm deactivate Undo effects of NVM on current shell"
echo " nvm sync Update the local cache of available versions" echo " nvm sync Update the local cache of available versions"
echo " nvm alias [<pattern>] Show all aliases beginning with <pattern>"
echo " nvm alias <name> <version> Set an alias named <name> pointing to <version>"
echo echo
echo "Example:" echo "Example:"
echo " nvm install v0.2.5 Install a specific version number" echo " nvm install v0.2.5 Install a specific version number"
echo " nvm use stable Use the stable release" echo " nvm use stable Use the stable release"
echo " nvm install latest Install the latest, possibly unstable version" echo " nvm install latest Install the latest, possibly unstable version"
echo " nvm use 0.3 Use the latest available 0.3.x release" echo " nvm use 0.3 Use the latest available 0.3.x release"
echo " nvm alias default v0.3.6 Set v0.3.6 as the default"
echo echo
;; ;;
"install" ) "install" )
@ -136,14 +144,46 @@ nvm()
"ls" ) "ls" )
if [ $# -ne 1 ]; then if [ $# -ne 1 ]; then
version $2 version $2
return; return
fi fi
version all version all
for P in {stable,latest,current}; do for P in {stable,latest,current}; do
echo -ne "$P: \t"; version $P echo -ne "$P: \t"; version $P
done done
nvm alias
echo "# use 'nvm sync' to update from nodejs.org" echo "# use 'nvm sync' to update from nodejs.org"
;; ;;
"alias" )
if [ $# -le 2 ]; then
(cd $NVM_DIR/alias; for ALIAS in `ls $2* 2>/dev/null`; do
DEST=`cat $ALIAS`
VERSION=`version $DEST`
if [ "$DEST" = "$VERSION" ]; then
echo "$ALIAS -> $DEST"
else
echo "$ALIAS -> $DEST (-> $VERSION)"
fi
done)
return
fi
if [ ! "$3" ]; then
rm -f $NVM_DIR/alias/$2
echo "$2 -> *poof*"
return
fi
mkdir -p $NVM_DIR/alias
VERSION=`version $3`
if [ $? -ne 0 ]; then
echo "! WARNING: Version '$3' does not exist." >&2
fi
echo $3 > "$NVM_DIR/alias/$2"
if [ ! "$3" = "$VERSION" ]; then
echo "$2 -> $3 (-> $VERSION)"
echo "! WARNING: Moving target. Aliases to implicit versions may change without warning."
else
echo "$2 -> $3"
fi
;;
"sync" ) "sync" )
(cd $NVM_DIR (cd $NVM_DIR
rm -f v* 2>/dev/null rm -f v* 2>/dev/null