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Declare functions outside of body of main function
Authored-by: Owen Nelson <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,149 +1,140 @@ | ||
| #!/bin/bash | ||
| set -euo pipefail | ||
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| function run() { | ||
| declare TALISMAN_BINARY_NAME | ||
| declare TALISMAN_BINARY_NAME | ||
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| E_UNSUPPORTED_ARCH=5 | ||
| DEBUG=${DEBUG:-''} | ||
| VERSION=${VERSION:-'latest'} | ||
| INSTALL_ORG_REPO=${INSTALL_ORG_REPO:-'thoughtworks/talisman'} | ||
| INSTALL_LOCATION=${INSTALL_LOCATION:-'/usr/local/bin'} | ||
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| function echo_error() { | ||
| echo -ne "$(tput setaf 1)" >&2 | ||
| echo "$1" >&2 | ||
| echo -ne "$(tput sgr0)" >&2 | ||
| } | ||
|
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||
| function echo_debug() { | ||
| [[ -z "$DEBUG" ]] && return | ||
| echo -ne "$(tput setaf 3)" >&2 | ||
| echo "$1" >&2 | ||
| echo -ne "$(tput sgr0)" >&2 | ||
| } | ||
|
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||
| function echo_success() { | ||
| echo -ne "$(tput setaf 2)" | ||
| echo "$1" >&2 | ||
| echo -ne "$(tput sgr0)" | ||
| } | ||
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||
| function operating_system() { | ||
| OS=$(uname -s) | ||
| case $OS in | ||
| "Linux") | ||
| echo "linux" | ||
| ;; | ||
| "Darwin") | ||
| echo "darwin" | ||
| ;; | ||
| MINGW32_NT-* | MINGW64_NT-* | MSYS_NT-*) | ||
| echo "windows" | ||
| ;; | ||
| *) | ||
| echo_error "Talisman currently only supports Windows, Linux, and MacOS (darwin) systems." | ||
| echo_error "If this is a problem for you, please open an issue: https://github.com/$INSTALL_ORG_REPO/issues/new" | ||
| exit $E_UNSUPPORTED_ARCH | ||
| ;; | ||
| esac | ||
| } | ||
|
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||
| E_UNSUPPORTED_ARCH=5 | ||
| function architecture() { | ||
| ARCH=$(uname -m) | ||
| case $ARCH in | ||
| "x86_64") | ||
| echo "amd64" | ||
| ;; | ||
| "i686" | "i386") | ||
| echo "386" | ||
| ;; | ||
| "arm64" | "aarch64") | ||
| echo "arm64" | ||
| ;; | ||
| *) | ||
| echo_error "Talisman currently only supports x86 and x86_64 and arm64 architectures." | ||
| echo_error "If this is a problem for you, please open an issue: https://github.com/$INSTALL_ORG_REPO/issues/new" | ||
| exit $E_UNSUPPORTED_ARCH | ||
| ;; | ||
| esac | ||
| } | ||
|
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||
| DEBUG=${DEBUG:-''} | ||
| VERSION=${VERSION:-'latest'} | ||
| INSTALL_ORG_REPO=${INSTALL_ORG_REPO:-'thoughtworks/talisman'} | ||
| INSTALL_LOCATION=${INSTALL_LOCATION:-'/usr/local/bin'} | ||
| function set_talisman_binary_name() { | ||
| TALISMAN_BINARY_NAME="talisman_$(operating_system)_$(architecture)" | ||
| if [ "$(operating_system)" = "windows" ]; then | ||
| TALISMAN_BINARY_NAME="$TALISMAN_BINARY_NAME.exe" | ||
| fi | ||
| } | ||
|
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||
| function download() { | ||
| OBJECT=$1 | ||
| DOWNLOAD_URL=$(curl -Ls https://api.github.com/repos/"$INSTALL_ORG_REPO"/releases/latest | | ||
| grep download_url | awk '{print $2}' | tr -d '"' | grep "$OBJECT") | ||
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| echo_debug "Downloading $OBJECT from $DOWNLOAD_URL" | ||
| curl --location --silent "$DOWNLOAD_URL" >"$TEMP_DIR/$OBJECT" | ||
| } | ||
|
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||
| function verify_checksum() { | ||
| FILE_NAME=$1 | ||
| CHECKSUM_FILE_NAME='checksums' | ||
| echo_debug "Verifying checksum for $FILE_NAME" | ||
| download $CHECKSUM_FILE_NAME | ||
|
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||
| pushd "$TEMP_DIR" >/dev/null 2>&1 | ||
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| if ! command -v shasum &> /dev/null; then | ||
| sha256sum --ignore-missing -c $CHECKSUM_FILE_NAME | ||
| else | ||
| shasum -a 256 --ignore-missing -c $CHECKSUM_FILE_NAME | ||
| fi | ||
| popd >/dev/null 2>&1 | ||
| echo_debug "Checksum verification successfully!" | ||
| echo | ||
| } | ||
|
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||
| function download_talisman_binary() { | ||
| download "$TALISMAN_BINARY_NAME" | ||
| verify_checksum "$TALISMAN_BINARY_NAME" | ||
| } | ||
|
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||
| function install_talisman() { | ||
| if (touch "$INSTALL_LOCATION/talisman" &>/dev/null); then | ||
| cp "$TEMP_DIR/$TALISMAN_BINARY_NAME" "$INSTALL_LOCATION/talisman" | ||
| chmod +x "$INSTALL_LOCATION/talisman" | ||
| elif (which sudo &>/dev/null); then | ||
| sudo cp "$TEMP_DIR/$TALISMAN_BINARY_NAME" "$INSTALL_LOCATION/talisman" | ||
| sudo chmod +x "$INSTALL_LOCATION/talisman" | ||
| else | ||
| echo_error "Insufficient permission to install to $INSTALL_LOCATION" | ||
| exit 126 | ||
| fi | ||
| } | ||
|
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||
| function run() { | ||
| TEMP_DIR=$(mktemp -d 2>/dev/null || mktemp -d -t 'talisman_setup') | ||
| # shellcheck disable=SC2064 | ||
| trap "rm -r $TEMP_DIR" EXIT | ||
| chmod 0700 "$TEMP_DIR" | ||
|
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||
| function echo_error() { | ||
| echo -ne "$(tput setaf 1)" >&2 | ||
| echo "$1" >&2 | ||
| echo -ne "$(tput sgr0)" >&2 | ||
| } | ||
|
|
||
| function echo_debug() { | ||
| [[ -z "$DEBUG" ]] && return | ||
| echo -ne "$(tput setaf 3)" >&2 | ||
| echo "$1" >&2 | ||
| echo -ne "$(tput sgr0)" >&2 | ||
| } | ||
|
|
||
| function echo_success() { | ||
| echo -ne "$(tput setaf 2)" | ||
| echo "$1" >&2 | ||
| echo -ne "$(tput sgr0)" | ||
| } | ||
|
|
||
| function operating_system() { | ||
| OS=$(uname -s) | ||
| case $OS in | ||
| "Linux") | ||
| echo "linux" | ||
| ;; | ||
| "Darwin") | ||
| echo "darwin" | ||
| ;; | ||
| MINGW32_NT-*) | ||
| echo "windows" | ||
| ;; | ||
| MINGW64_NT-*) | ||
| echo "windows" | ||
| ;; | ||
| MSYS_NT-*) | ||
| echo "windows" | ||
| ;; | ||
| *) | ||
| echo_error "Talisman currently only supports Windows, Linux and MacOS(darwin) systems." | ||
| echo_error "If this is a problem for you, please open an issue: https://github.com/$INSTALL_ORG_REPO/issues/new" | ||
| exit $E_UNSUPPORTED_ARCH | ||
| ;; | ||
| esac | ||
| } | ||
|
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| function set_talisman_binary_name() { | ||
| # based on OS (linux/darwin) and ARCH(32/64 bit) | ||
| declare SUFFIX | ||
| SUFFIX=$(operating_system) | ||
| ARCH=$(uname -m) | ||
| case $ARCH in | ||
| "x86_64") | ||
| SUFFIX="${SUFFIX}_amd64" | ||
| ;; | ||
| "i686" | "i386") | ||
| SUFFIX="${SUFFIX}_386" | ||
| ;; | ||
| "arm64" | "aarch64") | ||
| SUFFIX="${SUFFIX}_arm64" | ||
| ;; | ||
| *) | ||
| echo_error "Talisman currently only supports x86 and x86_64 and arm64 architectures." | ||
| echo_error "If this is a problem for you, please open an issue: https://github.com/$INSTALL_ORG_REPO/issues/new" | ||
| exit $E_UNSUPPORTED_ARCH | ||
| ;; | ||
| esac | ||
|
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| TALISMAN_BINARY_NAME="talisman_$SUFFIX" | ||
| if [[ $SUFFIX == *"windows"* ]]; then | ||
| TALISMAN_BINARY_NAME="$TALISMAN_BINARY_NAME.exe" | ||
| fi | ||
| } | ||
|
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||
| function download() { | ||
| OBJECT=$1 | ||
| DOWNLOAD_URL=$(curl -Ls https://api.github.com/repos/"$INSTALL_ORG_REPO"/releases/latest | | ||
| grep download_url | awk '{print $2}' | tr -d '"' | grep "$OBJECT") | ||
|
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| echo_debug "Downloading $OBJECT from $DOWNLOAD_URL" | ||
| curl --location --silent "$DOWNLOAD_URL" >"$TEMP_DIR/$OBJECT" | ||
| } | ||
|
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||
| function verify_checksum() { | ||
| FILE_NAME=$1 | ||
| CHECKSUM_FILE_NAME='checksums' | ||
| echo_debug "Verifying checksum for $FILE_NAME" | ||
| download $CHECKSUM_FILE_NAME | ||
|
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| pushd "$TEMP_DIR" >/dev/null 2>&1 | ||
|
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| if ! command -v shasum &> /dev/null; then | ||
| sha256sum --ignore-missing -c $CHECKSUM_FILE_NAME | ||
| else | ||
| shasum -a 256 --ignore-missing -c $CHECKSUM_FILE_NAME | ||
| fi | ||
| popd >/dev/null 2>&1 | ||
| echo_debug "Checksum verification successfully!" | ||
| echo | ||
| } | ||
|
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| function download_talisman_binary() { | ||
| download "$TALISMAN_BINARY_NAME" | ||
| verify_checksum "$TALISMAN_BINARY_NAME" | ||
| } | ||
|
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| function setup_talisman() { | ||
| if (touch "$INSTALL_LOCATION/talisman" &>/dev/null); then | ||
| cp "$TEMP_DIR/$TALISMAN_BINARY_NAME" "$INSTALL_LOCATION/talisman" | ||
| chmod +x "$INSTALL_LOCATION/talisman" | ||
| elif (which sudo &>/dev/null); then | ||
| sudo cp "$TEMP_DIR/$TALISMAN_BINARY_NAME" "$INSTALL_LOCATION/talisman" | ||
| sudo chmod +x "$INSTALL_LOCATION/talisman" | ||
| else | ||
| echo_error "Insufficient permission to install to $INSTALL_LOCATION" | ||
| exit 126 | ||
| fi | ||
| } | ||
|
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| if [ ! -d "$INSTALL_LOCATION" ]; then | ||
| echo_error "$INSTALL_LOCATION is not a directory!" | ||
| exit 1 | ||
| fi | ||
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| set_talisman_binary_name | ||
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| echo_success "Downloading talisman binary" | ||
| download_talisman_binary | ||
| setup_talisman | ||
| install_talisman | ||
| } | ||
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| run |