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refactor: Add improvements to lib.sh

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pull/57/merge
Jesus Alvarez 9 years ago
parent 46d58c1fce
commit ca0b90b8ae
1 changed files with 153 additions and 44 deletions
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  1. 197
      lib.sh

197
lib.sh
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@ -1,122 +1,231 @@
shopt -s nullglob
#!/bin/bash -e
shopt -s nullglob
unset ALL_OFF BOLD BLUE GREEN RED YELLOW WHITE
# check if messages are to be printed using color
unset ALL_OFF BOLD BLACK BLUE GREEN RED YELLOW WHITE DEFAULT CYAN MAGENTA
ALL_OFF="\e[0m"
BOLD="\e[1m"
BLACK="${BOLD}\e[30m"
RED="${BOLD}\e[31m"
GREEN="${BOLD}\e[32m"
YELLOW="${BOLD}\e[33m"
BLUE="${BOLD}\e[34m"
MAGENTA="${BOLD}\e[35m"
CYAN="${BOLD}\e[36m"
WHITE="${BOLD}\e[37m"
DEFAULT="${BOLD}\e[39m"
readonly ALL_OFF BOLD BLACK BLUE GREEN RED YELLOW WHITE DEFAULT CYAN MAGENTA
# prefer terminal safe colored and bold text when tput is supported
ALL_OFF="$(tput sgr0 2> /dev/null)"
BOLD="$(tput bold 2> /dev/null)"
BLUE="${BOLD}$(tput setaf 4 2> /dev/null)"
GREEN="${BOLD}$(tput setaf 2 2> /dev/null)"
RED="${BOLD}$(tput setaf 1 2> /dev/null)"
YELLOW="${BOLD}$(tput setaf 3 2> /dev/null)"
WHITE="${BOLD}$(tput setaf 7 2> /dev/null)"
readonly ALL_OFF BOLD BLUE GREEN RED YELLOW
plain() {
local mesg=$1; shift
printf "${WHITE} ○ ${ALL_OFF}${BOLD}${mesg}${ALL_OFF}\n" "$@"
printf "${ALL_OFF}${BLACK}%s${ALL_OFF}\n\n" "${mesg}"
if [[ $# -gt 0 ]]; then
printf "%s\n\n" "$@"
fi
}
plain_one_line() {
local mesg=$1; shift
printf "○ ${ALL_OFF}${BLACK}%s${ALL_OFF} %s\n\n" "${mesg}" "${@}"
}
msg() {
local mesg=$1; shift
printf "${GREEN}==== ${ALL_OFF}${WHITE}${BOLD} ${mesg}${ALL_OFF}\n" "$@"
printf "${GREEN}====${ALL_OFF} ${BLACK}${BOLD}%s${ALL_OFF}\n\n" "$mesg"
if [[ $# -gt 0 ]]; then
printf "%s\n\n" "$@"
fi
}
msg2() {
local mesg=$1; shift
printf "${BLUE}++++ ${ALL_OFF}${WHITE}${BOLD}${mesg}${ALL_OFF}\n" "$@"
printf "${BLUE}++++ ${ALL_OFF}${BLACK}${BOLD}${mesg}${ALL_OFF}\n\n" "$mesg"
if [[ $# -gt 0 ]]; then
printf "%s\n\n" "$@"
fi
}
warning() {
local mesg=$1; shift
printf "${YELLOW}==== WARNING: ${ALL_OFF}${WHITE}${BOLD} ${mesg}${ALL_OFF}\n" "$@"
printf "${YELLOW}==== WARNING: ${ALL_OFF}${BLACK}${BOLD}${mesg}${ALL_OFF}\n\n" "$mesg"
if [[ $# -gt 0 ]]; then
printf "%s\n\n" "$@"
fi
}
error() {
local mesg=$1; shift
printf "${RED}==== ERROR: ${ALL_OFF}${BOLD}${WHITE}${mesg}${ALL_OFF}\n" "$@" >&2
}
send_email() {
# $1 = Message
# $2 = Subject
# $3 = attachment
if [[ $3 == "" ]]; then
echo -e "${1}" | mutt -s "${2}" "${AZB_EMAIL}"
else
echo -e "${1}" | mutt -s "${2}" "${AZB_EMAIL}" -a "${3}"
printf "${RED}==== ERROR: ${ALL_OFF}${RED}${BOLD}${mesg}${ALL_OFF}\n\n" "$mesg"
if [[ $# -gt 0 ]]; then
printf "%s\n\n" "$@"
fi
}
debug() {
# $1: The message to print.
if [[ $DEBUG -eq 1 ]]; then
plain "DEBUG: $1"
local mesg=$1; shift
printf "${MAGENTA}~~~~ DEBUG: ${ALL_OFF}${BLACK}${BOLD}${mesg}${ALL_OFF}\n\n" "$mesg"
if [[ $# -gt 0 ]]; then
printf "%s\n\n" "$@"
fi
fi
}
run_cmd() {
# $1: The command to run
if [[ $DRY_RUN -eq 1 ]]; then
for pos in $@; do
plain $pos
done
else
plain "Running command: $@"
eval "$@"
plain "Command returned: $?"
fi
}
cleanup() {
exit $1 || true
}
abort() {
msg 'Aborting...'
cleanup 0
}
trap_abort() {
trap - EXIT INT QUIT TERM HUP
trap - INT QUIT TERM HUP
abort
}
trap_exit() {
trap - EXIT INT QUIT TERM HUP
trap - EXIT
msg "Have EXIT"
cleanup
}
die() {
(( $# )) && error "$@"
cleanup 1
# Check a symlink, re-create it if the target is not correct
function check_symlink() {
# $1 = Symlink
# $2 = Symlink target
if [[ "$1" = "$(readlink $2)" ]]; then
return
elif [[ -L "$2" ]]; then
rm "$2"
fi
ln -s "$1" "$2"
}
# Converts an absolute path into a relative path using python and prints on
# stdout.
function relativePath() {
# $1: Path that should be converted to relative path
# $2: The start path, usually $PWD
python -c "import os.path; print(os.path.relpath('$1', '$2'))"
}
norun() {
local mesg=$1; shift
printf "${MAGENTA}XXXX NORUN: ${ALL_OFF}${BLACK}${BOLD}${mesg}${ALL_OFF}\n\n" "$mesg"
if [[ $# -gt 0 ]]; then
printf "%s\n\n" "$@"
fi
}
# Runs a command. Ouput is not captured
# To use this function, define the following in your calling script:
# RUN_CMD_RETURN=""
run_cmd() {
# $@: The command and args to run
if [[ $DRY_RUN -eq 1 ]]; then
norun "CMD:" "$@"
else
plain "Running command:" "$@"
plain_one_line "Output:"
echo -e "$@" | source /dev/stdin
RUN_CMD_RETURN=$?
echo
plain_one_line "Command returned:" "${RUN_CMD_RETURN}"
fi
}
# Runs a command, capture the output in RUN_CMD_OUTPUT, but also show stdout.
# To use this function, define the following in your calling script:
# RUN_CMD_RETURN=""
run_cmd_show_and_capture_output() {
# $@: The command and args to run
if [[ $DRY_RUN -eq 1 ]]; then
norun "CMD:" "$@"
else
plain "Running command:" "$@"
plain_one_line "Output:"
# The following allows command output to be displayed in jenkins and stored in the variable simultaneously
# http://www.tldp.org/LDP/abs/html/x17974.html
# WARNING: This function sometimes results in the following error:
# lib.sh: line 145: /usr/bin/tee: Argument list too long
# lib.sh: line 145: /bin/cat: Argument list too long
exec 6>&1 # Link file descriptor 6 with stdout.
RUN_CMD_OUTPUT=$(echo -e "$@" | source /dev/stdin | tee >(cat - >&6); exit ${PIPESTATUS[1]})
exec 1>&6 6>&- # Restore stdout and close file descriptor #6.
RUN_CMD_RETURN=$?
echo
plain_one_line "Command returned:" "${RUN_CMD_RETURN}"
fi
}
# Runs the command, does not show output to stdout
# To use this function, define the following in your calling script:
# RUN_CMD_OUTPUT=""
# RUN_CMD_RETURN=""
run_cmd_no_output() {
# $@: The command and args to run
if [[ $DRY_RUN -eq 1 ]]; then
norun "CMD:" "$@"
else
plain "Running command:" "$@"
RUN_CMD_OUTPUT=$(echo -e "$@" | source /dev/stdin)
RUN_CMD_RETURN=$?
plain_one_line "Command returned:" "${RUN_CMD_RETURN}"
fi
}
package_arch_from_path() {
# $1: Package path
pacman -Qip "$1" | grep "Architecture" | cut -d : -f 2 | tr -d ' '
return $?
}
package_name_from_path() {
# $1: Package path
pacman -Qip "$1" | grep "Name" | cut -d : -f 2 | tr -d ' '
return $?
}
package_version_from_path() {
# $1: Package path
pacman -Qip "$1" | grep "Version" | cut -d : -f 2 | tr -d ' '
return $?
}
package_version_from_syncdb() {
# $1: Package name
pacman -Si "$1" | grep "Version" | cut -d : -f 2 | tr -d ' '
return $?
}
full_kernel_version() {
# Determine if the kernel version has the format 3.14 or 3.14.1
if [[ ${AZB_KERNEL_VERSION} =~ ^[[:digit:]]+\.[[:digit:]]+\.([[:digit:]]+) ]]; then

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