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Commit 7548e18

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jmonteirojmonteiro
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Deploy stuff
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‎deploy

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#!/usr/bin/env bash
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VERSION="0.4.0"
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CONFIG=./deploy.conf
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LOG=/tmp/deploy.log
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TEST=1
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REF=
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ENV=
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#
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# Output usage information.
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#
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usage() {
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cat <<-EOF
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Usage: deploy [options] <env> [command]
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Options:
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-C, --chdir <path> change the working directory to <path>
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-c, --config <path> set config path. defaults to ./deploy.conf
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-T, --no-tests ignore test hook
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-V, --version output program version
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-h, --help output help information
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Commands:
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setup run remote setup commands
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update update deploy to the latest release
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revert [n] revert to [n]th last deployment or 1
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config [key] output config file or [key]
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curr[ent] output current release commit
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prev[ious] output previous release commit
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exec|run <cmd> execute the given <cmd>
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console open an ssh session to the host
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list list previous deploy commits
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[ref] deploy to [ref], the 'ref' setting, or latest tag
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EOF
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}
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#
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# Abort with <msg>
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#
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abort() {
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echo
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echo " $@" 1>&2
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echo
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exit 1
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}
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#
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# Log <msg>.
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#
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log() {
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echo " ○ $@"
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}
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#
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# Set configuration file <path>.
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#
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set_config_path() {
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test -f $1 || abort invalid --config path
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CONFIG=$1
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}
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#
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# Check if config <section> exists.
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#
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config_section() {
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grep "^\[$1" $CONFIG &> /dev/null
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}
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#
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# Get config value by <key>.
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#
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config_get() {
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local key=$1
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test -n "$key" \
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&& grep "^\[$ENV" -A 20 $CONFIG \
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| grep "^$key" \
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| head -n 1 \
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| cut -d ' ' -f 2-999
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}
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#
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# Output version.
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#
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version() {
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echo $VERSION
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}
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#
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# Run the given remote <cmd>.
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#
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run() {
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local url="`config_get user`@`config_get host`"
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local key=`config_get key`
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if test -n "$key"; then
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local shell="ssh -A -i $key $url"
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else
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local shell="ssh -A $url"
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fi
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echo $shell "\"$@\"" >> $LOG
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$shell $@
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}
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#
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# Launch an interactive ssh console session.
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#
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console() {
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local url="`config_get user`@`config_get host`"
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local key=`config_get key`
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if test -n "$key"; then
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local shell="ssh -i $key $url"
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else
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local shell="ssh $url"
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fi
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echo $shell
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exec $shell
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}
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#
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# Output config or [key].
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#
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config() {
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if test $# -eq 0; then
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cat $CONFIG
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else
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config_get $1
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fi
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}
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#
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# Execute hook <name> relative to the path configured.
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#
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hook() {
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test -n "$1" || abort hook name required
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local hook=$1
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local path=`config_get path`
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local cmd=`config_get $hook`
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if test -n "$cmd"; then
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log "executing $hook \`$cmd\`"
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run "cd $path/current; \
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SHARED=\"$path/shared\" \
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$cmd 2>&1 | tee -a $LOG; \
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exit \${PIPESTATUS[0]}"
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test $? -eq 0
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else
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log hook $hook
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fi
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}
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#
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# Run setup.
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#
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setup() {
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local path=`config_get path`
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local repo=`config_get repo`
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run "mkdir -p $path/{shared/{logs,pids},source}"
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test $? -eq 0 || abort setup paths failed
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log running setup
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log cloning $repo
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run "git clone $repo $path/source"
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test $? -eq 0 || abort failed to clone
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log setup complete
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}
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#
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# Deploy [ref].
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#
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deploy() {
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local ref=$1
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local path=`config_get path`
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log deploying
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hook pre-deploy || abort pre-deploy hook failed
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# fetch source
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log fetching updates
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run "cd $path/source && git fetch --all"
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test $? -eq 0 || abort fetch failed
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# latest tag
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if test -z "$ref"; then
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log fetching latest tag
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ref=`run "cd $path/source && git for-each-ref refs/tags \
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--sort=-authordate \
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--format='%(refname)' \
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--count=1 | cut -d '/' -f 3"`
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test $? -eq 0 || abort failed to determine latest tag
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fi
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# reset HEAD
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log resetting HEAD to $ref
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run "cd $path/source && git reset --hard $ref"
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test $? -eq 0 || abort git reset failed
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# link current
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run "ln -sfn $path/source $path/current"
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test $? -eq 0 || abort symlink failed
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# deploy log
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run "cd $path/source && \
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echo \`git rev-parse --short HEAD\` \
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>> $path/.deploys"
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test $? -eq 0 || abort deploy log append failed
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hook post-deploy || abort post-deploy hook failed
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if test $TEST -eq 1; then
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hook test
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if test $? -ne 0; then
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log tests failed, reverting deploy
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quickly_revert_to 1 && log "revert complete" && exit
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fi
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else
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log ignoring tests
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fi
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# done
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log successfully deployed $ref
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}
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#
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# Get current commit.
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#
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current_commit() {
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local path=`config_get path`
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run "cd $path/source && \
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git rev-parse --short HEAD"
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}
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#
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# Get <n>th deploy commit.
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#
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nth_deploy_commit() {
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local n=$1
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local path=`config_get path`
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run "cat $path/.deploys | tail -n $n | head -n 1 | cut -d ' ' -f 1"
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}
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#
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# List deploys.
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#
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list_deploys() {
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local path=`config_get path`
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run "cat $path/.deploys"
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}
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#
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# Revert to the <n>th last deployment, ignoring tests.
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#
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quickly_revert_to() {
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local n=$1
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log "quickly reverting $n deploy(s)"
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local commit=`nth_deploy_commit $((n + 1))`
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TEST=0 deploy "$commit"
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}
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#
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# Revert to the <n>th last deployment.
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#
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revert_to() {
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local n=$1
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log "reverting $n deploy(s)"
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local commit=`nth_deploy_commit $((n + 1))`
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deploy "$commit"
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}
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#
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# Require environment arg.
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#
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require_env() {
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config_section $ENV || abort "[$ENV] config section not defined"
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test -z "$ENV" && abort "<env> required"
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}
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#
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# Update deploy.
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#
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update() {
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log "updating deploy(1)"
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rm -fr /tmp/deploy
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git clone git://github.com/visionmedia/deploy.git \
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--depth 0 \
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/tmp/deploy \
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&> /tmp/deploy.log \
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&& cd /tmp/deploy \
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&& make install \
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&& log "updated $VERSION -> `./bin/deploy --version`"
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}
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# parse argv
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while test $# -ne 0; do
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arg=$1; shift
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case $arg in
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-h|--help) usage; exit ;;
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-V|--version) version; exit ;;
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-c|--config) set_config_path $1; shift ;;
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-C|--chdir) log cd $1; cd $1; shift ;;
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-T|--no-tests) TEST=0 ;;
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run|exec) require_env; run "cd `config_get path` && $@"; exit ;;
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console) require_env; console; exit ;;
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curr|current) require_env; current_commit; exit ;;
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prev|previous) require_env; nth_deploy_commit 2; exit ;;
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revert) require_env; revert_to ${1-1}; exit ;;
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setup) require_env; setup $@; exit ;;
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list) require_env; list_deploys; exit ;;
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update) update; exit ;;
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config) config $@; exit ;;
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*)
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if test -z "$ENV"; then
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ENV=$arg;
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else
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REF="$REF $arg";
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fi
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;;
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esac
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done
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require_env
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# deploy
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deploy "${REF:-`config_get ref`}"

‎deploy.conf

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[linode]
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user deploy
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host 178.79.150.42
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repo [email protected]:nko2/awegen.git
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ref origin/master
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path /home/deploy/app
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post-deploy npm install && [ -e ../shared/pids/node.pid ] && sudo restart node || sudo start node
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test sleep 1 && curl localhost >/dev/null

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