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{{Level|Developer}}
===script to increment version number===
For use with scripts, or more customizability to apply to various versioning systems. It could use a couple more options, but as it stands now it works for my projects using the "major.minor[.maintenance[.build]]" version sequences.
Obviously, this is excessive just to increment a version string. But I wrote this because I had a need for different types of projects, and because if speed is not an issue, I prefer reusability over tweaking the same code across dozens of scripts. I guess that's just my object-oriented side leaking into my scripts.
from that source -> http://stackoverflow.com/questions/8653126/how-to-increment-version-number-in-a-shell-script
# Accepts a version string and prints it incremented by one.
# Usage: increment_version <version> [<position>] [<leftmost>]
increment_version() {
local usage=" USAGE: $FUNCNAME [-l] [-t] <version> [<position>] [<leftmost>]
-l : remove leading zeros
-t : drop trailing zeros
<version> : The version string.
<position> : Optional. The position (starting with one) of the number
within <version> to increment. If the position does not
exist, it will be created. Defaults to last position.
<leftmost> : The leftmost position that can be incremented. If does not
exist, position will be created. This right-padding will
occur even to right of <position>, unless passed the -t flag."
# Get flags.
local flag_remove_leading_zeros=0
local flag_drop_trailing_zeros=0
while [ "${1:0:1}" == "-" ]; do
if [ "$1" == "--" ]; then shift; break
elif [ "$1" == "-l" ]; then flag_remove_leading_zeros=1
elif [ "$1" == "-t" ]; then flag_drop_trailing_zeros=1
else echo -e "Invalid flag: ${1}\n$usage"; return 1; fi
shift; done
# Get arguments.
if [ ${#@} -lt 1 ]; then echo "$usage"; return 1; fi
local v="${1}" # version string
local targetPos=${2-last} # target position
local minPos=${3-${2-0}} # minimum position
# Split version string into array using its periods.
local IFSbak; IFSbak=IFS; IFS='.' # IFS restored at end of func to
read -ra v <<< "$v" # avoid breaking other scripts.
# Determine target position.
if [ "${targetPos}" == "last" ]; then
if [ "${minPos}" == "last" ]; then minPos=0; fi
targetPos=$((${#v[@]}>${minPos}?${#v[@]}:$minPos)); fi
if [[ ! ${targetPos} -gt 0 ]]; then
echo -e "Invalid position: '$targetPos'\n$usage"; return 1; fi
(( targetPos-- )) || true # offset to match array index
# Make sure minPosition exists.
while [ ${#v[@]} -lt ${minPos} ]; do v+=("0"); done;
# Increment target position.
v[$targetPos]=`printf %0${#v[$targetPos]}d $((${v[$targetPos]}+1))`;
# Remove leading zeros, if -l flag passed.
if [ $flag_remove_leading_zeros == 1 ]; then
for (( pos=0; $pos<${#v[@]}; pos++ )); do
v[$pos]=$((${v[$pos]}*1)); done; fi
# If targetPosition was not at end of array, reset following positions to
# zero (or remove them if -t flag was passed).
if [[ ${flag_drop_trailing_zeros} -eq "1" ]]; then
for (( p=$((${#v[@]}-1)); $p>$targetPos; p-- )); do unset v[$p]; done
else for (( p=$((${#v[@]}-1)); $p>$targetPos; p-- )); do v[$p]=0; done; fi
echo "${v[*]}"
IFS=IFSbak
return 0
}
# EXAMPLE -------------> # RESULT
increment_version 1 # 2
increment_version 1 2 # 1.1
increment_version 1 3 # 1.0.1
increment_version 1.0.0 # 1.0.1
increment_version 1.2.3.9 # 1.2.3.10
increment_version 00.00.001 # 00.00.002
increment_version -l 00.001 # 0.2
increment_version 1.1.1.1 2 # 1.2.0.0
increment_version -t 1.1.1 2 # 1.2
increment_version v1.1.3 # v1.1.4
increment_version 1.2.9 2 4 # 1.3.0.0
increment_version -t 1.2.9 2 4 # 1.3
increment_version 1.2.9 last 4 # 1.2.9.1
===find version number===
in a script you can use this from your spec file
version=$(grep -sri 'define version' *.spec | sed 's/%define version //gI')
===script to increment version number===
For use with scripts, or more customizability to apply to various versioning systems. It could use a couple more options, but as it stands now it works for my projects using the "major.minor[.maintenance[.build]]" version sequences.
Obviously, this is excessive just to increment a version string. But I wrote this because I had a need for different types of projects, and because if speed is not an issue, I prefer reusability over tweaking the same code across dozens of scripts. I guess that's just my object-oriented side leaking into my scripts.
from that source -> http://stackoverflow.com/questions/8653126/how-to-increment-version-number-in-a-shell-script
# Accepts a version string and prints it incremented by one.
# Usage: increment_version <version> [<position>] [<leftmost>]
increment_version() {
local usage=" USAGE: $FUNCNAME [-l] [-t] <version> [<position>] [<leftmost>]
-l : remove leading zeros
-t : drop trailing zeros
<version> : The version string.
<position> : Optional. The position (starting with one) of the number
within <version> to increment. If the position does not
exist, it will be created. Defaults to last position.
<leftmost> : The leftmost position that can be incremented. If does not
exist, position will be created. This right-padding will
occur even to right of <position>, unless passed the -t flag."
# Get flags.
local flag_remove_leading_zeros=0
local flag_drop_trailing_zeros=0
while [ "${1:0:1}" == "-" ]; do
if [ "$1" == "--" ]; then shift; break
elif [ "$1" == "-l" ]; then flag_remove_leading_zeros=1
elif [ "$1" == "-t" ]; then flag_drop_trailing_zeros=1
else echo -e "Invalid flag: ${1}\n$usage"; return 1; fi
shift; done
# Get arguments.
if [ ${#@} -lt 1 ]; then echo "$usage"; return 1; fi
local v="${1}" # version string
local targetPos=${2-last} # target position
local minPos=${3-${2-0}} # minimum position
# Split version string into array using its periods.
local IFSbak; IFSbak=IFS; IFS='.' # IFS restored at end of func to
read -ra v <<< "$v" # avoid breaking other scripts.
# Determine target position.
if [ "${targetPos}" == "last" ]; then
if [ "${minPos}" == "last" ]; then minPos=0; fi
targetPos=$((${#v[@]}>${minPos}?${#v[@]}:$minPos)); fi
if [[ ! ${targetPos} -gt 0 ]]; then
echo -e "Invalid position: '$targetPos'\n$usage"; return 1; fi
(( targetPos-- )) || true # offset to match array index
# Make sure minPosition exists.
while [ ${#v[@]} -lt ${minPos} ]; do v+=("0"); done;
# Increment target position.
v[$targetPos]=`printf %0${#v[$targetPos]}d $((${v[$targetPos]}+1))`;
# Remove leading zeros, if -l flag passed.
if [ $flag_remove_leading_zeros == 1 ]; then
for (( pos=0; $pos<${#v[@]}; pos++ )); do
v[$pos]=$((${v[$pos]}*1)); done; fi
# If targetPosition was not at end of array, reset following positions to
# zero (or remove them if -t flag was passed).
if [[ ${flag_drop_trailing_zeros} -eq "1" ]]; then
for (( p=$((${#v[@]}-1)); $p>$targetPos; p-- )); do unset v[$p]; done
else for (( p=$((${#v[@]}-1)); $p>$targetPos; p-- )); do v[$p]=0; done; fi
echo "${v[*]}"
IFS=IFSbak
return 0
}
# EXAMPLE -------------> # RESULT
increment_version 1 # 2
increment_version 1 2 # 1.1
increment_version 1 3 # 1.0.1
increment_version 1.0.0 # 1.0.1
increment_version 1.2.3.9 # 1.2.3.10
increment_version 00.00.001 # 00.00.002
increment_version -l 00.001 # 0.2
increment_version 1.1.1.1 2 # 1.2.0.0
increment_version -t 1.1.1 2 # 1.2
increment_version v1.1.3 # v1.1.4
increment_version 1.2.9 2 4 # 1.3.0.0
increment_version -t 1.2.9 2 4 # 1.3
increment_version 1.2.9 last 4 # 1.2.9.1
===find version number===
in a script you can use this from your spec file
version=$(grep -sri 'define version' *.spec | sed 's/%define version //gI')
