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refactor(SCRIPT): rewrite file update method

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This commit is contained in:
Asif Bacchus 2021-01-06 04:52:20 -07:00
parent f5e553ac21
commit 73d998178c
1 changed files with 22 additions and 18 deletions
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40
update.sh
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@ -126,51 +126,55 @@ else
printf "\n%s*** This script has been updated. Please re-run it to load the updated version of this file. ***%s\n\n" "$warn" "$norm" printf "\n%s*** This script has been updated. Please re-run it to load the updated version of this file. ***%s\n\n" "$warn" "$norm"
# overwrite this script with updated script # overwrite this script with updated script
mv -f ./update.sh.tmp "$localScriptName" mv -f ./update.sh.tmp "$localScriptName"
exit 0
fi fi
fi fi
fi fi
## update files ## update files
set -- dummy $updateFiles while IFS=' ' read -r field1 field2; do
shift printf "\nChecking '%s' for updates... " "$field2"
for file; do updateFilename="$field2"
updateTarget="$file" repoFileChecksum="$field1"
printf "\nChecking '%s' for updates... " "$updateTarget" if [ -f "$updateFilename" ]; then
repoFile=$(grep "$updateTarget" "$checksumFilename" | grep -o '^\S*') localFileChecksum=$(sha256sum "$updateFilename" | grep -o '^\S*')
if [ -f "$file" ]; then
localFile=$(sha256sum "$updateTarget" | grep -o '^\S*')
else else
localFile=0 localFileChecksum=0
fi fi
if ! [ "$localFile" = "$repoFile" ]; then # update file if necessary
if ! [ "$localFileChecksum" = "$repoFileChecksum" ]; then
printf "[AVAILABLE]\n" printf "[AVAILABLE]\n"
updatesAvailable=$((updatesAvailable + 1)) updatesAvailable=$((updatesAvailable + 1))
# download update # download update
printf "Downloading updated '%s'... " "$updateTarget" printf "Downloading updated '%s'... " "$updateFilename"
# specify a name here so that wget overwrites the file instead of just appending a number if ! wget --quiet --tries=3 --timeout=10 -O "$updateFilename.tmp" "${server}${updateFilename}"; then
if ! wget --quiet --tries=3 --timeout=10 -O "$updateTarget" "${server}${updateTarget}"; then
errNotify errNotify
downloadFailed=$((downloadFailed + 1)) downloadFailed=$((downloadFailed + 1))
# delete failed download file as necessary
rm -f "$updateFilename.tmp" 2>&1
else else
okNotify okNotify
downloadSuccess=$((downloadSuccess + 1)) downloadSuccess=$((downloadSuccess + 1))
# verify download # verify download
printf "Verifying '%s'... " "$updateTarget" printf "Verifying '%s'... " "$updateFilename"
localFile=$(sha256sum "$updateTarget" | grep -o '^\S*') localFileChecksum=$(sha256sum "$updateFilename.tmp" | grep -o '^\S*')
if ! [ "$localFile" = "$repoFile" ]; then if ! [ "$localFileChecksum" = "$repoFileChecksum" ]; then
errNotify errNotify
updateFailed=$((updateFailed + 1)) updateFailed=$((updateFailed + 1))
# delete corrupted download file as necessary
rm -f "$updateFilename.tmp" 2>&1
else else
okNotify okNotify
updateSuccess=$((updateSuccess + 1)) updateSuccess=$((updateSuccess + 1))
# overwrite old version of file
mv -f "$updateFilename.tmp" "$updateFilename"
fi fi
fi fi
else else
printf "[NONE]\n" printf "[NONE]\n"
fi fi
done done <"$checksumFilename"
### display results ### display results
printf "\n%sResults:%s\n" "$info" "$norm" printf "\n%sResults:%s\n" "$info" "$norm"