mirror of https://github.com/zulip/zulip.git
118 lines
3.4 KiB
Bash
Executable File
118 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# This script handles adding custom apt repositories into
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# /etc/apt/sources.list.d/ files. It bundles the GPG keys which are
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# used to verify the repositories (via `apt-key`), to explicitly pin
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# the trusted signing keys, as opposed to blindly trusting HTTPS.
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#
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# Each /etc/apt/sources.list.d/foo.list file is created via `--list
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# foo`, where `foo` defaults to `zulip`. The default `zulip.list` is
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# installed in `scripts/lib/install` / `tools/lib/provision.py`, and
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# other `.list` files may be installed by Puppet.
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set -x
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set -e
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set -u
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set -o pipefail
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shopt -s extglob
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verify=false
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args="$(getopt -o '' --long verify,list: -- "$@")"
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eval "set -- $args"
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LIST=zulip
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while true; do
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case "$1" in
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--verify)
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verify=true
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shift
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;;
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--list)
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LIST="$2"
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shift
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shift
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;;
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--)
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shift
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break
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;;
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esac
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done
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# Ensure the directory for LAST_DEPENDENCIES_HASH exists
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mkdir -p /var/lib/zulip
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SOURCES_FILE=/etc/apt/sources.list.d/$LIST.list
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PREF_FILE=/etc/apt/preferences.d/$LIST.pref
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STAMP_FILE=/etc/apt/sources.list.d/$LIST.list.apt-update-in-progress
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ZULIP_SCRIPTS="$(cd "$(dirname "$(dirname "$0")")" && pwd)"
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LIST_PATH="$ZULIP_SCRIPTS/setup/apt-repos/$LIST"
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if ! [ -d "$LIST_PATH" ]; then
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echo "Not a valid value for --list: '$LIST'"
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echo ""
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echo "Valid values are:"
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ls -1 "$ZULIP_SCRIPTS/setup/apt-repos/"
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exit 1
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fi
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release="$(. /etc/os-release && printf '%s' "$VERSION_CODENAME")"
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if [ ! -f "$LIST_PATH/$release.list" ]; then
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cat <<EOF
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Unsupported release $release for sources.list file $LIST. To add a
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new release, make a $LIST_PATH/$release.list file based on existing
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.list files in that directory.
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EOF
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exit 1
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fi
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DEPENDENCIES_HASH="$(sha256sum "$LIST_PATH"/?(*.asc|"$release.list"|"$LIST.pref"|custom.sh) "$ZULIP_SCRIPTS/lib/setup-apt-repo")"
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DEPENDENCIES_HASH_FILE="/var/lib/zulip/setup-repositories-state-$LIST"
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# Ensure that DEPENDENCIES_HASH_FILE exists before hashing it.
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touch "$DEPENDENCIES_HASH_FILE"
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LAST_DEPENDENCIES_HASH="$(cat "$DEPENDENCIES_HASH_FILE")"
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# First, we only do anything in setup-apt-repo if any of its inputs
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# (apt keys, code, etc.) changed.
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if [ "$DEPENDENCIES_HASH" = "$LAST_DEPENDENCIES_HASH" ]; then
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exit 0
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elif [ "$verify" == true ]; then
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exit 1
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fi
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# Hash to check if the configuration is changed by the script later.
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hashes=$(sha256sum "$SOURCES_FILE" "$PREF_FILE" 2>/dev/null || true)
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pre_setup_deps=(apt-transport-https ca-certificates gnupg curl)
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if ! apt-get -dy install "${pre_setup_deps[@]}"; then
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apt-get update
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fi
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apt-get -y install "${pre_setup_deps[@]}"
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apt-key add "$LIST_PATH/"*.asc
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cp "$LIST_PATH/$release.list" "$SOURCES_FILE"
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if [ -e "$LIST_PATH/$LIST.pref" ]; then
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cp "$LIST_PATH/$LIST.pref" "$PREF_FILE"
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else
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rm -f "$PREF_FILE"
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fi
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if [ -e "$LIST_PATH/custom.sh" ]; then
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export LIST_PATH
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export STAMP_FILE
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bash "$LIST_PATH/custom.sh"
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fi
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if [ "$hashes" = "$(sha256sum "$SOURCES_FILE" "$PREF_FILE" 2>/dev/null || true)" ] && ! [ -e "$STAMP_FILE" ]; then
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echo "APT configuration did not change; skipping apt-get update"
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else
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# We create this stamp file to ensure `apt-get update` will be run
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# the next time this script is invoked, and each time after, until
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# `apt-get update` finishes successfully.
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touch "$STAMP_FILE"
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apt-get update && rm -f "$STAMP_FILE"
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fi
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echo "$DEPENDENCIES_HASH" >"$DEPENDENCIES_HASH_FILE"
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