| 1 | #!/usr/bin/env bash |
| 2 |
|
| 3 | # Script variables |
| 4 | PYTHON_MAJOR=3 |
| 5 | PYTHON_MINOR=6 |
| 6 | ACCEPTABLE_PYTHON_COMMANDS="python3 python3.10 python3.9 python3.8 python3.7 python3.6 python" |
| 7 |
|
| 8 | while read -r requirement |
| 9 | do |
| 10 | REQUIRED_PIP_MODULES="$REQUIRED_PIP_MODULES $(sed -r "s/:.*//g" <<< $requirement)" |
| 11 | REQUIRED_PYTHON_MODULES="$REQUIRED_PYTHON_MODULES $(sed -r "s/.*://g" <<< $requirement)" |
| 12 | done < requirements.txt |
| 13 |
|
| 14 | # Plumbing |
| 15 | set -o pipefail |
| 16 |
|
| 17 | RESTORE=$(echo -en '\033[0m') |
| 18 | STANDOUT=$(echo -en '\033[7m') |
| 19 | RED=$(echo -en '\033[00;31m') |
| 20 | GREEN=$(echo -en '\033[00;32m') |
| 21 | YELLOW=$(echo -en '\033[00;33m') |
| 22 | PURPLE=$(echo -en '\033[00;35m') |
| 23 | LIGHTGRAY=$(echo -en '\033[00;37m') |
| 24 | LRED=$(echo -en '\033[01;31m') |
| 25 | LYELLOW=$(echo -en '\033[01;33m') |
| 26 | LBLUE=$(echo -en '\033[01;34m') |
| 27 | LCYAN=$(echo -en '\033[01;36m') |
| 28 |
|
| 29 | SCRIPT_SOURCE_DIR=$(dirname -- "${BASH_SOURCE[0]}") |
| 30 |
|
| 31 |
|
| 32 | # Handle argument input |
| 33 | case $1 in |
| 34 | h|help|?|-h|-help|-?|--h|--help|--?) |
| 35 | echo "Usage: ./install.sh [install|uninstall] [<python executable>]" |
| 36 | exit 0 |
| 37 | ;; |
| 38 | install) |
| 39 | PYTHON_COMMAND=$2 |
| 40 | ;; |
| 41 | uninstall) |
| 42 | UNINSTALL=1 |
| 43 | PYTHON_COMMAND=$2 |
| 44 | ;; |
| 45 | *) |
| 46 | PYTHON_COMMAND=$1 |
| 47 | ;; |
| 48 | esac |
| 49 |
|
| 50 |
|
| 51 | # Report operating mode |
| 52 | if [ -z $UNINSTALL ]; then |
| 53 | echo "${YELLOW}Running in ${LYELLOW}INSTALL${YELLOW} mode${RESTORE}" |
| 54 | else |
| 55 | echo "${YELLOW}Running in ${LYELLOW}UNINSTALL${YELLOW} mode${RESTORE}" |
| 56 | REQUIRED_PIP_MODULES="pip" |
| 57 | REQUIRED_PYTHON_MODULES="pip" |
| 58 | fi |
| 59 |
|
| 60 |
|
| 61 | # Determine Python interpreter to use |
| 62 | echo "${LIGHTGRAY}Determining Python interpreter${RESTORE}" |
| 63 | if [ -z $PYTHON_COMMAND ]; then |
| 64 | for COMMAND in $ACCEPTABLE_PYTHON_COMMANDS |
| 65 | do |
| 66 | if command -v $COMMAND &> /dev/null; then |
| 67 | PYTHON_COMMAND=$COMMAND |
| 68 | break |
| 69 | fi |
| 70 | done |
| 71 | fi |
| 72 |
|
| 73 | # Expand interpreter command, verify with `import sys` test instruction |
| 74 | PYTHON_COMMAND=$(command -v $PYTHON_COMMAND) |
| 75 | if [ -z $PYTHON_COMMAND ]; then |
| 76 | echo " ${RED}Python interpreter not found${RESTORE}" |
| 77 | exit 1 |
| 78 | fi |
| 79 | if [ -h "$PYTHON_COMMAND" ]; then |
| 80 | PYTHON_COMMAND=$(readlink -f $PYTHON_COMMAND) |
| 81 | fi |
| 82 | echo " Trying interpreter [ ${LYELLOW}$PYTHON_COMMAND${RESTORE} ]" |
| 83 | if ! $PYTHON_COMMAND -c "import sys"; then |
| 84 | echo " ${RED}Executable is not Python${RESTORE}" |
| 85 | exit 1 |
| 86 | fi |
| 87 |
|
| 88 |
|
| 89 | # Verifying Python version |
| 90 | echo "${LIGHTGRAY}Checking Python version${RESTORE} [ needs ${LIGHTGRAY}>=$PYTHON_MAJOR.$PYTHON_MINOR${RESTORE} ]" |
| 91 | PYTHON_VERSION_STRING=$($PYTHON_COMMAND -c "print('.'.join([str(a) for a in __import__('sys').version_info[:3]]))") |
| 92 | if ! $PYTHON_COMMAND -c "import sys;exit(not(sys.version_info.major==$PYTHON_MAJOR and sys.version_info.minor>=$PYTHON_MINOR))"; then |
| 93 | echo " ${RED}Python version must be ${RESTORE}[ ${LCYAN}>=$PYTHON_MAJOR.$PYTHON_MINOR${RESTORE} ]${RED}."\ |
| 94 | "Installed is ${RESTORE}[ ${LCYAN}$PYTHON_VERSION_STRING${RESTORE} ]" |
| 95 | exit 1 |
| 96 | fi |
| 97 | echo " Version [ ${LCYAN}$PYTHON_VERSION_STRING${RESTORE} ] acceptable" |
| 98 |
|
| 99 |
|
| 100 | # Verifying required modules are installed |
| 101 | echo "${LIGHTGRAY}Checking Python modules installed${RESTORE}" |
| 102 | for MODULE in $(seq 1 $(wc -w <<< $REQUIRED_PIP_MODULES)) |
| 103 | do |
| 104 | PIP_MODULE=$(awk -v N=$MODULE '{print $N}' <<< "$REQUIRED_PIP_MODULES") |
| 105 | PYTHON_MODULE=$(awk -v N=$MODULE '{print $N}' <<< "$REQUIRED_PYTHON_MODULES") |
| 106 | if ! $PYTHON_COMMAND -c "import $PYTHON_MODULE" &> /dev/null; then |
| 107 | echo " ${RED}Required Python module ${RESTORE}[ ${LBLUE}$PYTHON_MODULE${RESTORE} ] ${RED}not found${RESTORE}" |
| 108 | echo " Install with ${PURPLE}$PYTHON_COMMAND -m pip install $PIP_MODULE${RESTORE}" |
| 109 | exit 1 |
| 110 | fi |
| 111 | echo " Module [ ${LBLUE}$PYTHON_MODULE${RESTORE} ] found" |
| 112 | done |
| 113 | echo " ${GREEN}All required modules found${RESTORE}" |
| 114 |
|
| 115 |
|
| 116 | # Set pip command based on script mode |
| 117 | if [ -z $UNINSTALL ]; then |
| 118 | PIP_COMMAND="$PYTHON_COMMAND -m pip install $SCRIPT_SOURCE_DIR/" |
| 119 | else |
| 120 | PIP_COMMAND="$PYTHON_COMMAND -m pip uninstall --yes s3-bsync" |
| 121 | fi |
| 122 |
|
| 123 |
|
| 124 | # Run pip command and handle output |
| 125 | function indent() { |
| 126 | sed 's/^/ /'; |
| 127 | } |
| 128 | echo "${LIGHTGRAY}Running [ ${PURPLE}$PIP_COMMAND${LIGHTGRAY} ]${RESTORE}" |
| 129 | if $PIP_COMMAND 2>&1 | indent; then |
| 130 | echo "${GREEN}Success${RESTORE}" |
| 131 | exit 0 |
| 132 | else |
| 133 | ERROR_CODE=$? |
| 134 | echo "${LRED}${STANDOUT}pip did not exit successfully (status code $ERROR_CODE)${RESTORE}" |
| 135 | exit $ERROR_CODE |
| 136 | fi |
| 137 |
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