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Merge branch 'release/v0.1.3'
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@duydo
duydo committed Apr 27, 2017
2 parents c8781ac + d9c09f8 commit f02cc7e
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1 change: 1 addition & 0 deletions .gitignore
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.idea/
11 changes: 6 additions & 5 deletions README.md
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Expand Up @@ -15,18 +15,19 @@ evm install <version> Install a specific Elasticsea
evm remove <version> Remove a specific Elasticsearch version
evm use <version> Use a specific Elasticsearch version
evm which Display the current Elasticsearch version
evm plugin [<--install|--remove> <plugin>] Install/remove Elasticsearch plugin
evm plugin [<install|remove> <plugin>] List, install or remove an Elasticsearch plugin
evm start [--config-path </path/to/config/dir>] Start Elasticsearch node with/without a specific config directory
evm help Display usage information
evm -h or --help Display usage information
evm -V or --version Display version information
```
## Example
```sh
evm install 5.3.1 Install Elasticsearch 5.3.1
evm use 5.3.1 Use Elasticsearch 5.3.1
evm start Start Elasticsearch node with the defaut config directory
evm start Start Elasticsearch node with the default config directory
evm start --config-path /etc/elasticsearch Start Elasticsearch node with /etc/elasticsearch config directory
evm plugin --install x-pack Install the x-pack plugin
evm plugin --remove x-pack Remove the x-pack plugin
evm plugin install x-pack Install the x-pack plugin
evm plugin remove x-pack Remove the x-pack plugin
```
## Note
To remove, delete or uninstall evm - just remove the $EVM_HOME folder (usually ~/.evm)
Expand Down
252 changes: 151 additions & 101 deletions evm
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#!/bin/bash
# Purpose: Simple script for managing multiple Elasticsearch versions on your development local machine.
# Author: Duy Do
#
# Elasticsearch Version Manager
# Purpose: Managing multiple Elasticsearch versions on your local development machine
# Licence: Apache License, version 2 (http://www.apache.org/licenses/LICENSE-2.0)
# Source: https://github.com/duydo/evm
# Version: 0.1.3
# Author: Duy Do (duydo)
# Contributors: Quang Nguyen (xluffy), Nham Le (nhamlh)

set -e
EVM_VERSION="0.1.3"

SCRIPT="$0"

# SCRIPT may be an arbitrarily deep series of symlinks. Loop until we have the concrete path.
# SCRIPT may be an arbitrarily deep series of symlinks, lookup the concrete path.
if [[ -h "$SCRIPT" ]]; then
SCRIPT=$(readlink "$SCRIPT")
else
:
fi

EVM_NAME=$(basename "$SCRIPT")
Expand All @@ -23,7 +25,7 @@ ES_HOME="$EVM_HOME/$ES"
ES_1X_DOWNLOAD_REPO="https://download.elastic.co/elasticsearch/elasticsearch"
ES_2X_DOWNLOAD_REPO="https://download.elastic.co/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch"
ES_5X_DOWNLOAD_REPO="https://artifacts.elastic.co/downloads/elasticsearch"
ES_DOWNLOAD_EXT='tar.gz'
ES_DOWNLOAD_EXT="tar.gz"

# First use?
if [ ! -d "$EVM_HOME" ]; then
Expand All @@ -32,62 +34,92 @@ fi


abort(){
echo "${1:-"Abort!"}"; exit 3
echo "${1:-"Something went wrong. Abort!"}"
exit 3
}

_check_es_version() {
version="$1"
if [[ ! "$version" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
abort "Invalid version '$version'!!!"
fi
}

_get_es_download_link() {
version="$1"
download_file="$ES-$version.$ES_DOWNLOAD_EXT"
case "$version" in
5.*)
echo "$ES_5X_DOWNLOAD_REPO/$download_file"
download_link="$ES_5X_DOWNLOAD_REPO/$download_file"
;;
2.*)
echo "$ES_2X_DOWNLOAD_REPO/$version/$download_file"
download_link="$ES_2X_DOWNLOAD_REPO/$version/$download_file"
;;
1.*)
echo "$ES_1X_DOWNLOAD_REPO/$download_file"
download_link="$ES_1X_DOWNLOAD_REPO/$download_file"
;;
esac
# Check if the download link exists
if [ ! -z "$download_link" ]; then
_=$(wget --spider --tries 1 "$download_link" 2>&1)
if [ $? -eq 0 ]; then
echo "$download_link"
fi
fi
}

get_current_es_version() {
current_version="$(basename "$(find "$EVM_HOME" -type l -name "$ES" -exec readlink {} +)")"
echo "$current_version"
}

install_es_version() {
version="$1"
_check_es_version "$version"

if [ -d "$ES_HOME-$version" ]; then
abort "Elasticsearch $version has been already installed."
fi

download_link="$(_get_es_download_link "$version")"
if [ "x$download_link" = "x" ]; then
abort "Unknown Elasticsearch version $version"
if [ -z "$download_link" ]; then
abort "The Elasticsearch version $version does not exist."
fi

echo "-> Dowloading Elasticsearch $version from elastic.co"
echo "-> Downloading Elasticsearch $version from elastic.co"
echo "Retrieving $download_link"
output_file="$EVM_HOME/$ES-$version.$ES_DOWNLOAD_EXT"
wget -nc "$download_link" -O "$output_file"

# TODO: Verify downloaded file's checksum before installing (suggested by @xluffy)

echo "Installing $output_file"
tar -xzf "$output_file" -C "$EVM_HOME/"
echo "-> Installed elasticsearch $version."
if [ ! -f "$ES_HOME/bin/elasticsearch" ]; then
echo "-> Installed Elasticsearch $version"

# Use this version if no other version in use
current_version=$(get_current_es_version)
if [ -z "$current_version" ]; then
use_es_version "$version"
fi

# Remove the download file
rm -rf "$output_file"
}

use_es_version() {
version="$1"
_check_es_version "$version"

use_version="$ES_HOME-$version"
if [ ! -d "$use_version" ]; then
abort "The version $version has not installed yet."
fi
ln -sfn "$use_version" "$ES_HOME"
echo "-> Now using Elasticsearch $version."
echo "-> Now using Elasticsearch $version"
}

start_es() {
start_current_es_version() {
cmd="$ES_HOME/bin/elasticsearch"
if [ ! -x "$cmd" ]; then
abort "Elasticsearch has not been installed yet."
Expand All @@ -100,23 +132,28 @@ start_es() {
fi
cmd="$cmd -Epath.conf=$config_path"
fi
$cmd
${cmd}
}

remove_es_version() {
version="$1"
uninstall_version="$ES_HOME-$version"
_check_es_version "$version"

if [ ! -d "$uninstall_version" ]; then
abort "The Elasticsearch $version has not been installed yet."
fi
removed_version="$ES-$version"
if [ ! -d "$EVM_HOME/$removed_version" ]; then
abort "Elasticsearch $version has been already installed."
fi

current_version="$(readlink "$ES_HOME")"
if [ "$uninstall_version" = "$current_version" ]; then
abort "The Elasticsearch $version is in use."
fi
rm -rf "$uninstall_version"
echo "-> The Elasticsearch $version has been removed."
current_version="$(get_current_es_version)"
if [ "$removed_version" = "$current_version" ]; then
abort "The Elasticsearch $version is in use."
fi

if rm -rf "$EVM_HOME/$removed_version"; then
echo "-> The Elasticsearch $version has been removed."
else
abort
fi
}

manage_es_plugin() {
Expand Down Expand Up @@ -146,96 +183,109 @@ manage_es_plugin() {
else
plugin="$2"
case "$option" in
--install)
install)
cmd="$cmd $option_install $plugin"
;;
--remove)
remove)
cmd="$cmd $option_remove $plugin"
;;
*)
abort "Unknown option. Use evm -h for help."
esac
fi
$cmd
}

get_current_es_version() {
current_version="$(basename "$(find "$EVM_HOME" -type l -name "$ES" -exec readlink {} +)")"
printf "%s\n" "$current_version"
${cmd}
}

list_es_versions() {
current_version=$(get_current_es_version)
for e in $(find "$EVM_HOME" -type d -name "$ES-*" -maxdepth 1 -mindepth 1 | sort -nr); do
e="$(basename "$e")"
if [ "$current_version" = "$e" ]; then
printf "%-2s %s\n" "*" "$e (in use)"
for e in $(find "$EVM_HOME" -maxdepth 1 -mindepth 1 -type d -name "$ES-*" | sort -nr); do
version="$(basename "$e")"
if [ "$current_version" = "$version" ]; then
echo -e "\033[0;32m* $version\033[0m"
else
printf "%-2s %s\n" "" "$e"
echo -e " $version"
fi
done
}


usage() {
printf "\nSimple Elasticsearch Version Manager\n"

printf "\nUsage:\n"
printf " %-50s %s\n" "$EVM_NAME list" "List all versions of Elasticsearch have been installed"
printf " %-50s %s\n" "$EVM_NAME install <version>" "Install a specific Elasticsearch version"
printf " %-50s %s\n" "$EVM_NAME remove <version>" "Remove a specific Elasticsearch version"
printf " %-50s %s\n" "$EVM_NAME use <version>" "Use a specific Elasticsearch version"
printf " %-50s %s\n" "$EVM_NAME which" "Display the current Elasticsearch version"
printf " %-50s %s\n" "$EVM_NAME plugin [<--install|--remove> <plugin>]" "Install/remove Elasticsearch plugin"
printf " %-50s %s\n" "$EVM_NAME start [--config-path </path/to/config/dir>]" "Start Elasticsearch node with/without a specific config directory"
printf " %-50s %s\n" "$EVM_NAME help" "Display usage information"

printf "\nExample:\n"
printf " %-50s %s\n" "$EVM_NAME install 5.3.1" "Install Elasticsearch 5.3.1"
printf " %-50s %s\n" "$EVM_NAME use 5.3.1" "Use Elasticsearch 5.3.1"
printf " %-50s %s\n" "$EVM_NAME start" "Start Elasticsearch node with the defaut config directory"
printf " %-50s %s\n" "$EVM_NAME start --config-path /etc/elasticsearch" "Start Elasticsearch node with /etc/elasticsearch config directory"
printf " %-50s %s\n" "$EVM_NAME plugin --install x-pack" "Install the x-pack plugin"
printf " %-50s %s\n" "$EVM_NAME plugin --remove x-pack" "Remove the x-pack plugin"
printf "\nNote: To remove, delete or uninstall evm - just remove the EVM_HOME folder (usually ~/.evm)\n"
printf "\n"
exit 3
cat <<'EOF'
Elasticsearch Version Manager
Usage:
evm list List all versions of Elasticsearch have been installed
evm install <version> Install a specific Elasticsearch version
evm remove <version> Remove a specific Elasticsearch version
evm use <version> Use a specific Elasticsearch version
evm which Display the current Elasticsearch version
evm plugin [<install|remove> <plugin>] List, install or remove an Elasticsearch plugin
evm start [--config-path </path/to/config/dir>] Start Elasticsearch node with/without a specific config directory
evm -h or --help Display usage information
evm -V or --version Display version information
Example:
evm install 5.3.1 Install Elasticsearch 5.3.1
evm use 5.3.1 Use Elasticsearch 5.3.1
evm start Start Elasticsearch node with the default config directory
evm start --config-path /etc/elasticsearch Start Elasticsearch node with /etc/elasticsearch config directory
evm plugin install x-pack Install the x-pack plugin
evm plugin remove x-pack Remove the x-pack plugin
Note: To remove, delete or uninstall evm - just remove the EVM_HOME folder (usually ~/.evm)
EOF
}

cmd="$1"
case "$cmd" in
install)
version="$2"
install_es_version "$version"
;;
use)
version="$2"
use_es_version "$version"
;;
start)
start_es "$2" "$3"
;;
remove)
version="$2"
remove_es_version "$version"
;;
plugin)
option="$2"
plugin="$3"
manage_es_plugin "$option" "$plugin"
;;
list)
list_es_versions
;;
which)
get_current_es_version
;;
help|-h|--help)
usage
;;
*)
usage
;;
esac
print_version(){
echo "$EVM_NAME $EVM_VERSION"
}

print_current_es_version() {
echo "$(get_current_es_version)"
}

main() {
cmd="$1"
case "$cmd" in
install)
version="$2"
install_es_version "$version"
;;
use)
version="$2"
use_es_version "$version"
;;
start)
start_current_es_version "$2" "$3"
;;
remove)
version="$2"
remove_es_version "$version"
;;
plugin)
option="$2"
plugin="$3"
manage_es_plugin "$option" "$plugin"
;;
list)
list_es_versions
;;
which)
print_current_es_version
;;
-V|--version)
print_version
;;
-h|--help)
usage
;;
*)
usage
;;
esac
}

main "$@"

exit $?

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