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
parent
0f6680e8b7
commit
a77c632e2a
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@ -1,3 +1,4 @@
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HEAD
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src
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v*
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alias
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@ -1,2 +1,3 @@
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src
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v*
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alias
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78
nvm.sh
78
nvm.sh
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@ -13,21 +13,25 @@ version()
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{
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PATTERN=$1
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VERSION=''
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if [ -f "$NVM_DIR/alias/$PATTERN" ]; then
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version `cat $NVM_DIR/alias/$PATTERN`
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return
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fi
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# If it looks like an explicit version, don't do anything funny
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if [[ $PATTERN == v*.*.* ]]; then
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VERSION=$PATTERN
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if [[ "$PATTERN" == v*.*.* ]]; then
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VERSION="$PATTERN"
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fi
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# The default version is the current one
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if [ ! $PATTERN -o $PATTERN = 'current' ]; then
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if [ ! "$PATTERN" -o "$PATTERN" = 'current' ]; then
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VERSION=`node -v 2>/dev/null`
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fi
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if [ $PATTERN = 'stable' ]; then
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if [ "$PATTERN" = 'stable' ]; then
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PATTERN='*.*[02468].'
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fi
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if [ $PATTERN = 'latest' ]; then
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if [ "$PATTERN" = 'latest' ]; then
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PATTERN='*.*.'
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fi
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if [ $PATTERN = 'all' ]; then
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if [ "$PATTERN" = 'all' ]; then
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(cd $NVM_DIR; ls -dG v* 2>/dev/null || echo "N/A")
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return
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fi
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@ -36,8 +40,9 @@ version()
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fi
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if [ ! "$VERSION" ]; then
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echo "N/A"
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return -1
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elif [ -e "$NVM_DIR/$VERSION" ]; then
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(cd $NVM_DIR; ls -dG $VERSION)
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(cd $NVM_DIR; ls -dG "$VERSION")
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else
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echo "$VERSION"
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fi
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@ -55,19 +60,22 @@ nvm()
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echo "Node Version Manager"
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echo
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echo "Usage:"
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echo " nvm help Show this message"
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echo " nvm install <version> Download and install a <version>"
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echo " nvm use <version> Modify PATH to use <version>"
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echo " nvm ls List versions (installed versions are blue)"
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echo " nvm ls <version> List versions matching a given description"
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echo " nvm deactivate Undo effects of NVM on current shell"
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echo " nvm sync Update the local cache of available versions"
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echo " nvm help Show this message"
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echo " nvm install <version> Download and install a <version>"
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echo " nvm use <version> Modify PATH to use <version>"
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echo " nvm ls List versions (installed versions are blue)"
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echo " nvm ls <version> List versions matching a given description"
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echo " nvm deactivate Undo effects of NVM on current shell"
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echo " nvm sync Update the local cache of available versions"
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echo " nvm alias [<pattern>] Show all aliases beginning with <pattern>"
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echo " nvm alias <name> <version> Set an alias named <name> pointing to <version>"
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echo
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echo "Example:"
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echo " nvm install v0.2.5 Install a specific version number"
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echo " nvm use stable Use the stable release"
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echo " nvm install latest Install the latest, possibly unstable version"
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echo " nvm use 0.3 Use the latest available 0.3.x release"
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echo " nvm install v0.2.5 Install a specific version number"
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echo " nvm use stable Use the stable release"
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echo " nvm install latest Install the latest, possibly unstable version"
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echo " nvm use 0.3 Use the latest available 0.3.x release"
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echo " nvm alias default v0.3.6 Set v0.3.6 as the default"
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echo
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;;
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"install" )
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@ -136,14 +144,46 @@ nvm()
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"ls" )
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if [ $# -ne 1 ]; then
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version $2
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return;
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return
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fi
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version all
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for P in {stable,latest,current}; do
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echo -ne "$P: \t"; version $P
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done
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nvm alias
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echo "# use 'nvm sync' to update from nodejs.org"
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;;
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"alias" )
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if [ $# -le 2 ]; then
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(cd $NVM_DIR/alias; for ALIAS in `ls $2* 2>/dev/null`; do
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DEST=`cat $ALIAS`
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VERSION=`version $DEST`
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if [ "$DEST" = "$VERSION" ]; then
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echo "$ALIAS -> $DEST"
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else
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echo "$ALIAS -> $DEST (-> $VERSION)"
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fi
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done)
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return
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fi
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if [ ! "$3" ]; then
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rm -f $NVM_DIR/alias/$2
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echo "$2 -> *poof*"
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return
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fi
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mkdir -p $NVM_DIR/alias
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VERSION=`version $3`
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if [ $? -ne 0 ]; then
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echo "! WARNING: Version '$3' does not exist." >&2
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fi
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echo $3 > "$NVM_DIR/alias/$2"
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if [ ! "$3" = "$VERSION" ]; then
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echo "$2 -> $3 (-> $VERSION)"
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echo "! WARNING: Moving target. Aliases to implicit versions may change without warning."
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else
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echo "$2 -> $3"
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fi
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;;
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"sync" )
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(cd $NVM_DIR
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rm -f v* 2>/dev/null
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