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aspnetcore/kvm.sh

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# kvm.sh
# Source this file from your .bash-profile or script to use
# With inspriation from nvm.sh
SCRIPTPATH="$_"
#Exit script when any command returns non 0 exit code
set -e
set -o pipefail
_kvm_has() {
type "$1" > /dev/null 2>&1
return $?
}
# Make zsh glob matching behave same as bash
# This fixes the "zsh: no matches found" errors
if _kvm_has "unsetopt"; then
unsetopt nomatch 2>/dev/null
KVM_CD_FLAGS="-q"
fi
eval USERKREPATH=~/.kre
USERKREPACKAGES="$USERKREPATH/packages"
MONO45=
X86=
X64=
# Traverse up in directory tree to find containing folder
_kvm_find_up() {
local path
path=$PWD
while [ "$path" != "" ] && [ ! -f "$path/$1" ]; do
path=${path%/*}
done
echo "$path"
}
_kvm_find_kvmrc() {
local dir="$(_kvm_find_up '.kvmrc')"
if [ -e "$dir/.kvmrc" ]; then
echo "$dir/.kvmrc"
fi
}
# Obtain kvm version from rc file
_kvm_rc_version() {
local KVMRC_PATH="$(_kvm_find_kvmrc)"
if [ -e "$KVMRC_PATH" ]; then
_kvm_rc_version=`cat "$KVMRC_PATH" | head -n 1`
echo "Found '$KVMRC_PATH' with version <$_kvm_rc_version>"
fi
}
_kvm_find_latest() {
echo "Determining latest version"
local platform="mono45"
local architecture="x86"
if ! _kvm_has "curl"; then
echo 'KVM Needs curl to proceed.' >&2;
return 1
fi
local url="https://www.myget.org/F/aspnetvnext/api/v2/GetUpdates()?packageIds=%27KRE-$platform-$architecture%27&versions=%270.0%27&includePrerelease=true&includeAllVersions=false"
local xml=$(curl -silent -L -u aspnetreadonly:4d8a2d9c-7b80-4162-9978-47e918c9658c $url)
version=$(echo $xml | sed "s/.*<[a-zA-Z]:Version>\([^<]*\).*/\1/")
echo $version
}
_kvm_strip_path() {
echo "$1" | sed -e "s#$KVM_DIR/[^/]*$2[^:]*:##g" -e "s#:$KVM_DIR/[^/]*$2[^:]*##g" -e "s#$KVM_DIR/[^/]*$2[^:]*##g"
}
_kvm_prepend_path() {
if [ -z "$1" ]; then
echo "$2"
else
echo "$2:$1"
fi
}
_kvm_download() {
local kreFullName="$1"
local kreFolder="$2"
local pkgName=$(echo "$kreFullName" | sed "s/\([^.]*\).*/\1/")
local pkgVersion=$(echo "$kreFullName" | sed "s/[^.]*.\(.*\)/\1/")
local url="https://www.myget.org/F/aspnetvnext/api/v2/package/$pkgName/$pkgVersion"
local kreFile="$kreFolder/$kreFullName.nupkg"
if [ -e "$kreFolder" ]; then
echo "$kreFullName already installed."
return 0
fi
echo "Downloading" $kreFullName "from https://www.myget.org/F/aspnetvnext/api/v2/"
if ! _kvm_has "curl"; then
echo "KVM Needs curl to proceed." >&2;
return 1
fi
mkdir -p "$kreFolder" > /dev/null 2>&1
curl -silent -L -u aspnetreadonly:4d8a2d9c-7b80-4162-9978-47e918c9658c "$url" -o "$kreFile"
_kvm_unpack $kreFile $kreFolder
}
_kvm_unpack() {
local kreFile="$1"
local kreFolder="$2"
echo "Installing to $kreFolder"
if ! _kvm_has "unzip"; then
echo "KVM Needs unzip to proceed." >&2;
return 1
fi
unzip $kreFile -d $kreFolder > /dev/null 2>&1
[ -e "$kreFolder/[Content_Types].xml" ] && rm "$kreFolder/[Content_Types].xml"
[ -e "$kreFolder/_rels/" ] && rm -rf "$kreFolder/_rels/"
[ -e "$kreFolder/package/" ] && rm -rf "$kreFolder/_package/"
}
# This is not really needed. Placeholder until I get clarification on the supported platforms for mono
_kvm_requested_platform() {
local default=$1
[[ $MONO45 ]] && echo "mono45" && return
echo $default
}
# Ditto - waiting for clarification on mono-x64 packages
_kvm_requested_architecture() {
local default=$1
[[ $X86 && $X64 ]] && echo "This command cannot accept both -x86 and -x64" && return 1
[[ $X86 ]] && echo "x86" && return
[[ $X64 ]] && echo "x64" && return
echo $default
}
_kvm_requested_version_or_alias() {
local versionOrAlias="$1"
if [ -e "$USERKREPATH/alias/$versionOrAlias.alias" ]; then
local aliasValue=$(cat "$USERKREPATH/alias/$versionOrAlias.alias")
local pkgName=$(echo $kreFullName | sed "s/\([^.]*\).*/\1/")
local pkgVersion=$(echo $kreFullName | sed "s/[^.]*\(.*\)/\1/")
local pkgPlatform=$(echo $pgkName | sed "s/.*-\([^-]*\).*/\1/" | _kvm_requested_platform)
local pkgArchitecture=$(echo $pgkName | sed "s/.*-.*-\([^-]*\).*/\1/" | _kvm_requested_architecture)
else
local pkgVersion=$versionOrAlias
local pkgPlatform=$(_kvm_requested_platform "mono45")
local pkgArchitecture=$(_kvm_requested_architecture "x86")
fi
echo "KRE-$pkgPlatform-$pkgArchitecture.$pkgVersion"
}
# This will be more relevant if we support global installs
_kvm_locate_kre_bin_from_full_name() {
local kreFullName=$1
[ -e "$USERKREPACKAGES/$kreFullName/bin" ] && echo "$USERKREPACKAGES/$kreFullName/bin" && return
}
kvm()
{
if [ $# -lt 1 ]; then
kvm help
return
fi
case $1 in
"help" )
echo ""
echo "K Runtime Environment Version Manager - Build {{BUILD_NUMBER}}"
echo ""
echo "USAGE: kvm <command> [options]"
echo ""
echo "kvm upgrade"
echo "install latest KRE from feed"
echo "set 'default' alias to installed version"
echo "add KRE bin to user PATH environment variable persistently"
echo ""
echo "kvm install <semver>|<alias>|<nupkg>"
echo "install requested KRE from feed"
echo "add KRE bin to path of current command line"
echo ""
echo "kvm use <semver>|<alias>|none [-p -persistent]"
echo "<semver>|<alias> add KRE bin to path of current command line "
echo "none remove KRE bin from path of current command line"
echo "-p -persistent persist selected version to .kvmrc"
echo ""
echo "kvm list"
echo "list KRE versions installed "
echo ""
echo "kvm alias"
echo "list KRE aliases which have been defined"
echo ""
echo "kvm alias <alias>"
echo "display value of named alias"
echo ""
echo "kvm alias <alias> <semver>"
echo "set alias to specific version"
echo ""
echo ""
;;
"upgrade" )
[ $# -ne 1 ] && kvm help && return
local version=$(_kvm_find_latest mono45 x86)
kvm install $version
kvm alias default $version
;;
"install" )
[ $# -ne 2 ] && kvm help && return
local versionOrAlias="$2"
if [ "$versionOrAlias" == *.nupkg ]; then
local kreFullName=$(echo $versionOrAlias | sed "s/\(.*\)\.nupkg/\1/")
local kreFolder="$USERKREPACKAGES/$kreFullName"
local kreFile="$kreFolder/$kreFullName.nupkg"
if [ -e "$kreFolder" ]; then
echo "Target folder '$kreFolder' already exists"
else
mkdir "$kreFolder" > /dev/null 2>&1
cp -a "$versionOrAlias" "$kreFile"
_kvm_unpack "$kreFile" "$kreFolder"
fi
echo "Adding $kreBin to current PATH"
PATH=`_kvm_strip_path "$PATH" "/bin"`
PATH=`_kvm_prepend_path "$PATH" "$kreBin"`
else
local kreFullName="$(_kvm_requested_version_or_alias $versionOrAlias)"
local kreFolder="$USERKREPACKAGES/$kreFullName"
_kvm_download "$kreFullName" "$kreFolder"
kvm use "$versionOrAlias"
fi
;;
"use" )
[ $# -gt 3 ] && kvm help && return
[ $# -lt 2 ] && kvm help && return
shift
local persistant=
while [ $# -ne 0 ]
do
if [[ $1 == "-p" || $1 == "-persistant" ]]; then
local persistant="true"
else
local versionOrAlias=$1
fi
shift
done
if [[ $versionOrAlias == "none" ]]; then
echo "Removing KRE from process PATH"
# Strip other version from PATH
PATH=`_kvm_strip_path "$PATH" "/bin"`
if [[ $persistent&& -e "$USERKREPATH/alias/default.alias" ]]; then
echo "Setting default KRE to none"
rm "$USERKREPATH/alias/default.alias"
fi
return 0
fi
local kreFullName=$(_kvm_requested_version_or_alias "$versionOrAlias")
local kreBin=$(_kvm_locate_kre_bin_from_full_name "$kreFullName")
if [[ ! $kreBin ]]; then
echo "Cannot find $kreFullName, do you need to run 'kvm install $versionOrAlias'?"
return 1
fi
echo "Adding" $kreBin "to process PATH"
PATH=`_kvm_strip_path "$PATH" "/bin"`
PATH=`_kvm_prepend_path "$PATH" "$kreBin"`
if [[ $persistent ]]; then
echo "Setting $kreBin as default KRE"
kvm alias default "$versionOrAlias"
fi
;;
"alias" )
[ $# -gt 4 ] && kvm help && return
local alias="$2"
local semver="$3"
echo "alias $alias $semver - TBD ..."
;;
"list" )
# TBD, this lets our persistant impl work for now
echo "default"
echo ""
esac
}
kvm list default >/dev/null && kvm use default >/dev/null || true
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