Random-functions

functions.zsh

# usage: get_ubuntu_images VPC_REGION
function get_ubuntu_images() {
	ibmcloud login -r "$@" -q >/dev/null 2>&1
	vpc_region=$(ibmcloud target --output json | jq -r '.region.name')
	printf "%b" "\e[1;34mGetting Ubuntu images in ${vpc_region}:.\e[0m"
	printf '\n'
	ibmcloud is images --visibility public --output json | jq -r '.[] | select(.status=="available") | select(.operating_system.architecture=="amd64") | select(.name | startswith("ibm-ubuntu")) | .name,.id'
}

# usage: get_windows_images VPC_REGION
function get_windows_images() {
	ibmcloud login -r "$@" -q >/dev/null 2>&1
	vpc_region=$(ibmcloud target --output json | jq -r '.region.name')
	printf "%b" "\e[1;34mGetting Windows images in ${vpc_region}:.\e[0m"
	printf '\n'
	ibmcloud is images --visibility public --output json | jq -r '.[] | select(.status=="available") | select(.operating_system.architecture=="amd64") | select(.name | startswith("ibm-windows")) | .name,.id'
}

# usage: get_all_public_images VPC_REGION
function get_all_public_images() {
	ibmcloud login -r "$@" -q >/dev/null 2>&1
	vpc_region=$(ibmcloud target --output json | jq -r '.region.name')
	printf "%b" "\e[1;34mGetting all public x86 VPC images in ${vpc_region}:.\e[0m"
	printf '\n'
	ibmcloud is images --visibility public --output json | jq -r '.[] | select(.status=="available") | select(.operating_system.architecture=="amd64") | .name,.id'
}

# usage: get_all_private_images VPC_REGION
function get_all_private_images() {
	ibmcloud login -r "$@" -q >/dev/null 2>&1
	vpc_region=$(ibmcloud target --output json | jq -r '.region.name')
	printf "%b" "\e[1;34mGetting all private VPC images in ${vpc_region}:.\e[0m"
	printf '\n'
	ibmcloud is images --visibility private --output json | jq -r '.[] | select(.status=="available") | .name,.id'
}

# mac specific to show hidden files in the Finder
function showFiles() { 
	defaults write com.apple.Finder AppleShowAllFiles true
	killAll Finder
}

# mac specific to not show hidden files in the Finder
function hideFiles() {
        defaults write com.apple.Finder AppleShowAllFiles false
        killAll Finder
}

# usage: icl VPC_REGION
# mainly used in another script when bouncing between work and personal IBM accounts
function icl() { 
	ibmcloud login -r "$@" -q > /dev/null 2>&1 
	ibm_region=$(ibmcloud target --output json | jq -r .region.name)
	printf "%b" "\e[1;34mConnected to ${ibm_region}:.\e[0m"
}


# Target IBM Cloud CDE account
function target_cde() { 
	unset IBMCLOUD_API_KEY; 
	export IBMCLOUD_API_KEY=$(scrt get ibmcloud_api_key); 
	icl us-south 
        ibmcloud target -g CDE 
}

function target_personal() { 
	unset IBMCLOUD_API_KEY; 
	export IBMCLOUD_API_KEY=$(scrt get personal_ibmcloud_api_key); 
	icl us-south 
        ibmcloud target -g Default
}

# Remove an IP from the SSH known_hosts file
# usage: iprem 10.240.0.5
function iprem() { 
	printf "%b" "\e[1;34mRemoving IP ${@} from known hosts file::\e[0m\n"
	ssh-keygen -R "$@" -f ~/.ssh/known_hosts 
}

# SSH through a bastion host. 
# usage: ssh_tunnel <bastion> <target>
function ssh_tunnel() { 
	printf "%b" "\e[1;34mSSH tunneling through ${1} to ${2}::\e[0m\n"
	ssh -o ProxyCommand="ssh -W %h:%p root@${1}" "root@${2}" 
}

# Find the 20 most recently modified directories in the current path
function recentdirs() {
  tree -D -L 1 -d | head -n 20
}

# Find the 20 most recently modified directories in our projects folder
function recentprojects() {
	export PROJECTS_DIR="${HOME}/Sync/SynologyDrive/current-projects"
	tree -D -L 1 -d $PROJECTS_DIR | head -n 20
}

# Perform a gitdiff using bat
batdiff() {
    git diff --name-only --relative --diff-filter=d | xargs bat --diff
}

# Get IAM token from IBM IAM API and set to TOKEN variable
function get_iam_token() {
TOKEN=$(curl -s -X POST "https://iam.cloud.ibm.com/identity/token" --header "Content-Type: application/x-www-form-urlencoded" --header "Accept: application/json" --data-urlencode "grant_type=urn:ibm:params:oauth:grant-type:apikey" --data-urlencode "apikey=${IBMCLOUD_API_KEY}" | jq -r '.access_token')
}

# Get external IP address
function get_external_ip() {
	curl -s "https://api.ipify.org?format=json" | jq -r '.ip'
}

# Use awk to grab lines from a file. Usage: grab_lines <start_line> <end_line> <file>
function grab_lines() { 
	awk NR=="$1",NR=="$2" "$3" 
}

function take () {
	if [[ $1 =~ ^(https?|ftp).*\.(tar\.(gz|bz2|xz)|tgz)$ ]]
	then
		takeurl "$1"
	elif [[ $1 =~ ^([A-Za-z0-9]\+@|https?|git|ssh|ftps?|rsync).*\.git/?$ ]]
	then
		takegit "$1"
	else
		takedir "$@"
	fi
}

takeurl() {
	local data thedir
	data="$(mktemp)" 
	curl -L "$1" > "$data"
	tar xf "$data"
	thedir="$(tar tf "$data" | head -n 1)" 
	rm "$data"
	cd "$thedir"
}

takegit() {
	git clone "$1"
	cd "$(basename ${1%%.git})"
}

takedir() {
	mkdir -p "$@" && cd "${@:$#}"
}

function namegen() {
	uuidgen | tr '[:upper:]' '[:lower:]' 
}