Simplify download-latest.sh script

This commit is contained in:
curquiza 2022-11-30 13:53:12 +01:00
parent 6150aa73b0
commit 8d405fad12

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@ -10,9 +10,6 @@ DEFAULT='\033[0m'
# Project name
PNAME='meilisearch'
# Version regexp i.e. v[number].[number].[number]
GREP_SEMVER_REGEXP='v\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)$'
# GitHub API address
GITHUB_API='https://api.github.com/repos/meilisearch/meilisearch/releases'
# GitHub Release address
@ -20,126 +17,26 @@ GITHUB_REL='https://github.com/meilisearch/meilisearch/releases/download/'
# FUNCTIONS
# semverParseInto and semverLT from: https://github.com/cloudflare/semver_bash/blob/master/semver.sh
# usage: semverParseInto version major minor patch special
# version: the string version
# major, minor, patch, special: will be assigned by the function
semverParseInto() {
local RE='[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z-]*\)'
# MAJOR
eval $2=`echo $1 | sed -e "s#$RE#\1#"`
# MINOR
eval $3=`echo $1 | sed -e "s#$RE#\2#"`
# PATCH
eval $4=`echo $1 | sed -e "s#$RE#\3#"`
# SPECIAL
eval $5=`echo $1 | sed -e "s#$RE#\4#"`
}
# usage: semverLT version1 version2
semverLT() {
local MAJOR_A=0
local MINOR_A=0
local PATCH_A=0
local SPECIAL_A=0
local MAJOR_B=0
local MINOR_B=0
local PATCH_B=0
local SPECIAL_B=0
semverParseInto $1 MAJOR_A MINOR_A PATCH_A SPECIAL_A
semverParseInto $2 MAJOR_B MINOR_B PATCH_B SPECIAL_B
if [ $MAJOR_A -lt $MAJOR_B ]; then
return 0
fi
if [ $MAJOR_A -le $MAJOR_B ] && [ $MINOR_A -lt $MINOR_B ]; then
return 0
fi
if [ $MAJOR_A -le $MAJOR_B ] && [ $MINOR_A -le $MINOR_B ] && [ $PATCH_A -lt $PATCH_B ]; then
return 0
fi
if [ "_$SPECIAL_A" == '_' ] && [ "_$SPECIAL_B" == '_' ] ; then
return 1
fi
if [ "_$SPECIAL_A" == '_' ] && [ "_$SPECIAL_B" != '_' ] ; then
return 1
fi
if [ "_$SPECIAL_A" != '_' ] && [ "_$SPECIAL_B" == '_' ] ; then
return 0
fi
if [ "_$SPECIAL_A" < "_$SPECIAL_B" ]; then
return 0
fi
return 1
}
# Get a token from: https://github.com/settings/tokens to increase rate limit (from 60 to 5000),
# make sure the token scope is set to 'public_repo'.
# Create GITHUB_PAT environment variable once you acquired the token to start using it.
# Returns the tag of the latest stable release (in terms of semver and not of release date).
get_latest() {
# temp_file is needed because the grep would start before the download is over
temp_file=$(mktemp -q /tmp/$PNAME.XXXXXXXXX)
latest_release="$GITHUB_API/latest"
if [ $? -ne 0 ]; then
echo "$0: Can't create temp file, bye bye.."
echo "$0: Can't create temp file."
fetch_release_failure_usage
exit 1
fi
if [ -z "$GITHUB_PAT" ]; then
curl -s $GITHUB_API > "$temp_file" || return 1
curl -s "$latest_release" > "$temp_file" || return 1
else
curl -H "Authorization: token $GITHUB_PAT" -s $GITHUB_API > "$temp_file" || return 1
curl -H "Authorization: token $GITHUB_PAT" -s "$latest_release" > "$temp_file" || return 1
fi
releases=$(cat "$temp_file" | \
grep -E '"tag_name":|"draft":|"prerelease":' \
| tr -d ',"' | cut -d ':' -f2 | tr -d ' ')
# Returns a list of [tag_name draft_boolean prerelease_boolean ...]
# Ex: v0.10.1 false false v0.9.1-rc.1 false true v0.9.0 false false...
i=0
latest=''
current_tag=''
for release_info in $releases; do
# Checking tag_name
if [ $i -eq 0 ]; then
# If it's not an alpha or beta release
if echo "$release_info" | grep -q "$GREP_SEMVER_REGEXP"; then
current_tag=$release_info
else
current_tag=''
fi
i=1
# Checking draft boolean
elif [ $i -eq 1 ]; then
if [ "$release_info" = 'true' ]; then
current_tag=''
fi
i=2
# Checking prerelease boolean
elif [ $i -eq 2 ]; then
if [ "$release_info" = 'true' ]; then
current_tag=''
fi
i=0
# If the current_tag is valid
if [ "$current_tag" != '' ]; then
# If there is no latest yes
if [ "$latest" = '' ]; then
latest="$current_tag"
else
# Comparing latest and the current tag
semverLT $current_tag $latest
if [ $? -eq 1 ]; then
latest="$current_tag"
fi
fi
fi
fi
done
latest="$(cat "$temp_file" | grep '"tag_name":' | cut -d ':' -f2 | tr -d '"' | tr -d ',' | tr -d ' ')"
rm -f "$temp_file"
return 0
@ -210,12 +107,13 @@ fetch_release_failure_usage() {
echo ''
printf "$RED%s\n$DEFAULT" 'ERROR: Impossible to get the latest stable version of Meilisearch.'
echo 'Please let us know about this issue: https://github.com/meilisearch/meilisearch/issues/new/choose'
echo ''
echo 'In the meantime, you can manually download the appropriate binary from the GitHub release assets here: https://github.com/meilisearch/meilisearch/releases/latest'
}
fill_release_variables() {
# Fill $latest variable.
if ! get_latest; then
# TO CHANGE.
fetch_release_failure_usage
exit 1
fi