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Merge pull request #27 from pajamian/main

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Fix various issues found by shellcheck + Fix issues when migrating from CentOS 8.3 after 8.4 dropped
This commit is contained in:
Neil Hanlon 2021-06-04 07:35:35 -04:00 committed by GitHub
commit 7d8e7ae627
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 63 additions and 30 deletions
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93
migrate2rocky.sh
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@ -43,7 +43,9 @@ exec > >(tee -a "$logfile") 2> >(tee -a "$logfile" >&2)
#errcolor=$(tput setaf 1)
#blue=$(tput setaf 4)
#nocolor=$(tput op)
unset errcolor blue nocolor
errcolor=
blue=
nocolor=
export LANG=en_US.UTF-8
shopt -s nullglob
@ -95,7 +97,7 @@ os-release () (
# be adequate for our needs here.
pkg_ver() (
ver=$(rpm -q --qf '%{VERSION}\n' "$1") || return 2
if [[ $(sort -V <<<"$ver"$'\n'"$2" | head -1) != $2 ]]; then
if [[ $(sort -V <<<"$ver"$'\n'"$2" | head -1) != "$2" ]]; then
return 1
fi
return 0
@ -112,7 +114,7 @@ bin_check() {
fi
# Check the platform.
if [[ $(os-release PLATFORM_ID) != $SUPPORTED_PLATFORM ]]; then
if [[ $(os-release PLATFORM_ID) != "$SUPPORTED_PLATFORM" ]]; then
exit_message "This script must be run on an EL8 distribution. Migration from other distributions is not supported."
fi
@ -142,7 +144,7 @@ bin_check() {
fi
if (( ${#missing[@]} )); then
exit_message "Commands not found: ${missing[@]}. Possible bad PATH setting or corrupt installation."
exit_message "Commands not found: ${missing[*]}. Possible bad PATH setting or corrupt installation."
fi
}
@ -150,7 +152,8 @@ bin_check() {
# info for the resulting package. Note that we explicitly disable the epel repo
# as a special-case below to avoid having the extras repository map to epel.
repoquery () {
local name val prev result=$(
local name val prev result
result=$(
dnf -q --setopt=epel.excludepkgs=epel-release repoquery -i "$1" ||
exit_message "Failed to fetch info for package $1."
)
@ -225,11 +228,36 @@ provides_pkg () (
provides=$(dnf -q provides "$1" | awk '{print $1; nextfile}') ||
return 1
set +o pipefail
pkg=$(dnf -q repoquery --queryformat '%{NAME}' "$provides") ||
pkg=$(rpm -q --queryformat '%{NAME}\n' "$provides") ||
pkg=$(dnf -q repoquery --queryformat '%{NAME}\n' "$provides") ||
exit_message "Can't get package name for $provides."
printf '%s\n' "$pkg"
)
# If you pass an empty arg as one of the package specs to rpm it will match
# every package on the system. This funtion simply strips out any empty args
# and passes the rest to rpm to avoid this side-effect.
saferpm () (
args=()
for a in "$@"; do
if [[ $a ]]; then
args+=("$a")
fi
done
rpm "${args[@]}"
)
# And a similar function for dnf
safednf () (
args=()
for a in "$@"; do
if [[ $a ]]; then
args+=("$a")
fi
done
dnf "${args[@]}"
)
collect_system_info () {
# Check the efi mount first, so we can bail before wasting time on all these
# other checks if it's not there.
@ -282,8 +310,8 @@ collect_system_info () {
done
printf '%s\n' '' '' "Found the following repositories which map from $PRETTY_NAME to Rocky Linux 8:"
column -t -N "$PRETTY_NAME,Rocky Linux 8" < <(for r in "${!repo_map[@]}"; do
printf '%s %s\n' "${repo_map[$r]}" "$r"
column -t -s $'\t' -N "$PRETTY_NAME,Rocky Linux 8" < <(for r in "${!repo_map[@]}"; do
printf '%s\t%s\n' "${repo_map[$r]}" "$r"
done)
printf '\n%s' "${blue}Getting system package names for $PRETTY_NAME$nocolor."
@ -330,37 +358,38 @@ collect_system_info () {
for pkg in "${!provides_pkg_map[@]}"; do
printf '.'
prov=${provides_pkg_map[$pkg]}
pkg_map[$pkg]=$(provides_pkg $prov) ||
pkg_map[$pkg]=$(provides_pkg "$prov") ||
exit_message "Can't get package that provides $prov."
done
for prov in "${addl_provide_removes[@]}"; do
printf '.'
local pkg;
pkg=$(provides_pkg $prov) || continue
pkg=$(provides_pkg "$prov") || continue
addl_pkg_removes+=("$pkg")
done
printf '%s\n' '' '' "Found the following system packages which map from $PRETTY_NAME to Rocky Linux 8:"
column -t -N "$PRETTY_NAME,Rocky Linux 8" < <(for p in "${!pkg_map[@]}"; do
printf '%s %s\n' "${pkg_map[$p]}" "$p"
column -t -s $'\t' -N "$PRETTY_NAME,Rocky Linux 8" < <(for p in "${!pkg_map[@]}"; do
printf '%s\t%s\n' "${pkg_map[$p]}" "$p"
done)
printf '%s\n' '' "${blue}Getting list of installed system packages$nocolor."
readarray -t installed_packages < <(rpm -qa --queryformat="%{NAME}\n" "${pkg_map[@]}")
readarray -t installed_packages < <(saferpm -qa --queryformat="%{NAME}\n" "${pkg_map[@]}")
declare -g -A installed_pkg_check installed_pkg_map
for p in "${installed_packages[@]}"; do
installed_pkg_check[$p]=1
done
for p in "${!pkg_map[@]}"; do
if [[ ${installed_pkg_check[${pkg_map[$p]}]} ]]; then
if [[ ${pkg_map[$p]} && ${installed_pkg_check[${pkg_map[$p]}]} ]]; then
installed_pkg_map[$p]=${pkg_map[$p]}
fi
done;
printf '%s\n' '' "We will replace the following $PRETTY_NAME packages with their Rocky Linux 8 equivalents"
column -t -N "Packages to be Removed,Packages to be Installed" < <(
column -t -s $'\t' -N "Packages to be Removed,Packages to be Installed" < <(
for p in "${!installed_pkg_map[@]}"; do
printf '%s %s\n' "${installed_pkg_map[$p]}" "$p"
printf '%s\t%s\n' "${installed_pkg_map[$p]}" "$p"
done
)
@ -380,7 +409,7 @@ collect_system_info () {
# Get a list of system enabled modules.
readarray -t enabled_modules < <(
set -e -o pipefail
dnf -q "${repo_map[@]/#/--repo=}" module list --enabled |
safednf -q "${repo_map[@]/#/--repo=}" module list --enabled |
awk '
$1 == "@modulefailsafe", /^$/ {next}
$1 == "Name", /^$/ {if ($1!="Name" && !/^$/) print $1":"$2}
@ -445,7 +474,7 @@ package_swaps() {
done
# Use dnf shell to swap the system packages out.
dnf -y shell --disablerepo=\* --noautoremove \
safednf -y shell --disablerepo=\* --noautoremove \
--setopt=protected_packages= --setopt=keepcache=True \
"${dnfparameters[@]}" \
<<EOF
@ -467,7 +496,7 @@ EOF
# linux package will be removed and then installed again.
local -a check_removed check_installed
readarray -t check_removed < <(
rpm -qa --qf '%{NAME}\n' "${installed_pkg_map[@]}" \
saferpm -qa --qf '%{NAME}\n' "${installed_pkg_map[@]}" \
"${addl_pkg_removes[@]}" | sort -u
)
@ -475,9 +504,13 @@ EOF
printf '%s\n' '' "${blue}Packages found on system that should still be removed. Forcibly removing them with rpm:$nocolor"
# Removed packages still found on the system. Forcibly remove them.
for pkg in "${check_removed[@]}"; do
# Extra safety measure, skip if empty string
if [[ -z $pkg ]]; then
continue
fi
printf '%s\n' "$pkg"
rpm -e --allmatches --nodeps "${check_removed[@]}" ||
rpm -e --allmatches --nodeps --noscripts --notriggers "$pkg"
saferpm -e --allmatches --nodeps "$pkg" ||
saferpm -e --allmatches --nodeps --noscripts --notriggers "$pkg"
done
fi
@ -485,7 +518,7 @@ EOF
readarray -t check_installed < <(
{
printf '%s\n' "${!installed_pkg_map[@]}" | sort -u
rpm -qa --qf '%{NAME}\n' "${!installed_pkg_map[@]}" | sort -u
saferpm -qa --qf '%{NAME}\n' "${!installed_pkg_map[@]}" | sort -u
} | sort | uniq -u
)
if (( ${#check_installed[@]} )); then
@ -534,7 +567,7 @@ EOF
printf '%s\n' '' "${blue}Removing dnf cache$nocolor"
rm -rf /var/cache/{yum,dnf}
printf '%s\n' "${blue}Ensuring repos are enabled before the package swap$nocolor"
dnf -y config-manager --set-enabled "${!repo_map[@]}" || {
safednf -y config-manager --set-enabled "${!repo_map[@]}" || {
printf '%s\n' 'Repo name missing?'
exit 25
}
@ -542,25 +575,25 @@ EOF
if (( ${#managed_repos[@]} )); then
# Filter the managed repos for ones still in the system.
readarray -t managed_repos < <(
dnf -q repolist "${managed_repos[@]}" | awk '$1!="repo" {print $1}'
safednf -q repolist "${managed_repos[@]}" | awk '$1!="repo" {print $1}'
)
if (( ${#managed_repos[@]} )); then
printf '%s\n' '' "${blue}Disabling subscription managed repos$nocolor."
dnf -y config-manager --disable "${managed_repos[@]}"
safednf -y config-manager --disable "${managed_repos[@]}"
fi
fi
if (( ${#enabled_modules[@]} )); then
printf '%s\n' "${blue}Enabling modules$nocolor" ''
dnf -y module enable "${enabled_modules[@]}" ||
exit_message "Can't enable modules ${enabled_modules[@]}"
safednf -y module enable "${enabled_modules[@]}" ||
exit_message "Can't enable modules ${enabled_modules[*]}"
fi
# Make sure that excluded repos are disabled.
printf '%s\n' "${blue}Disabling excluded modules$nocolor" ''
dnf -y module disable "${module_excludes[@]}" ||
exit_message "Can't disable modules ${module_excludes[@]}"
safednf -y module disable "${module_excludes[@]}" ||
exit_message "Can't disable modules ${module_excludes[*]}"
printf '%s\n' '' "${blue}Syncing packages$nocolor" ''
dnf -y distro-sync || exit_message "Error during distro-sync."
@ -665,7 +698,7 @@ fi
printf '\n\n\n'
if [[ $convert_to_rocky ]]; then
cat /etc/issue | awk 'NR<=15'
awk 'NR<=15' < /etc/issue
printf '%s\n' "$blue" "Done, please reboot your system.$nocolor"
fi
logmessage