easy install: handle upgrades specially
- "it's an upgrade" is decided by presence of gitolite.conf (not a pubkey) - admin_name optional (and will be ignored if given) for upgrades plus a lot of comments and some minor text changes
This commit is contained in:
Sitaram Chamarty
Sitaram Chamarty
parent
31fd24a76c
commit
130478ed93
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@ -15,10 +15,18 @@
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# command!)
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set -e
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# ----------------------------------------------------------------------
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# temp files
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# ----------------------------------------------------------------------
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export tmpgli=tmp-gl-install
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trap "rm -rf $tmpgli" 0
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mkdir -p $tmpgli
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# ----------------------------------------------------------------------
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# service functions
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# ----------------------------------------------------------------------
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die() { echo "$@"; echo; echo "run $0 again without any arguments for help and tips"; exit 1; }
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prompt() {
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# receives two arguments. A short piece of text to be displayed, without
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@ -38,15 +46,16 @@ prompt() {
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}
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usage() {
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cat <<EOFU
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Usage: $0 [-q] user host port admin_name
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Usage: $0 [-q] user host [port] admin_name # install
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$0 [-q] user host [port] # upgrade
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- (optional) "-q" as first arg sets "quiet" mode: no verbose descriptions of
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what is going on, no pauses unless absolutely necessary
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- "user" is the username on the server where you will be installing gitolite
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- "host" is that server's hostname (or IP address is also fine)
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- "port" is optional
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- "admin_name" is *your* name as you want it to appear in the eventual
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gitolite config file
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- "host" is that server's hostname (or IP address)
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- "port" is the ssh server port on "host"; optional, defaults to 22
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- "admin_name" is *your* name as it should appear in the eventual gitolite
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config file (not needed/used for upgrades)
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Example usage: $0 git my.git.server sitaram
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@ -95,21 +104,21 @@ quiet=
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# MANUAL: (info) we'll use "git" as the user, "server" as the host, and
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# "sitaram" as the admin_name in example commands shown below, if any
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[[ -z $3 ]] && usage
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[[ -z $2 ]] && usage
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user=$1
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host=$2
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port=22
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admin_name=$3
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# but if the 3rd arg is a number, that's a port number, and the 4th arg is the
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# admin_name
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port=22
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[[ $3 =~ ^[0-9]+$ ]] && {
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if [[ $3 =~ ^[0-9]+$ ]]
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then
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port=$3
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[[ -z $4 ]] && usage
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admin_name=$4
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}
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fi
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[[ "$user" =~ [^a-zA-Z0-9._-] ]] && die "user '$user' invalid"
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[[ "$admin_name" =~ [^a-zA-Z0-9._-] ]] && die "admin_name '$admin_name' invalid"
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[[ -n $admin_name ]] && [[ "$admin_name" =~ [^a-zA-Z0-9._-] ]] && die "admin_name '$admin_name' invalid"
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# MANUAL: make sure you're in the gitolite directory, at the top level.
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# The following files should all be visible:
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@ -129,6 +138,10 @@ ls src/gl-auth-command \
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ssh -p $port -o PasswordAuthentication=no $user@$host true ||
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die "pubkey access didn't work; please set it up using 'ssh-copy-id' or something"
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# ----------------------------------------------------------------------
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# version info
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# ----------------------------------------------------------------------
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# MANUAL: if needed, make a note of the version you are upgrading from, and to
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# record which version is being sent across; we assume it's HEAD
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@ -148,12 +161,18 @@ prompt "$upgrade_details" \
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nice to have those version numbers in case you need support. Try and
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install from a clone"
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# MANUAL: create a new key for you as a "gitolite user" (as opposed to you as
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# the "gitolite admin" who needs to login to the server and get a command
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# line). For example, "ssh-keygen -t rsa ~/.ssh/sitaram"; this would create
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# two files in ~/.ssh (sitaram and sitaram.pub)
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# ----------------------------------------------------------------------
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# new keypair, ssh-config para; only on "install" (not upgrade)
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# ----------------------------------------------------------------------
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prompt "setting up keypair..." \
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[[ -n $admin_name ]] && {
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# MANUAL: create a new key for you as a "gitolite user" (as opposed to you
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# as the "gitolite admin" who needs to login to the server and get a
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# command line). For example, "ssh-keygen -t rsa ~/.ssh/sitaram"; this
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# would create two files in ~/.ssh (sitaram and sitaram.pub)
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prompt "setting up keypair..." \
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"the next command will create a new keypair for your gitolite access
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The pubkey will be $HOME/.ssh/$admin_name.pub. You will have to choose a
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@ -170,26 +189,27 @@ prompt "setting up keypair..." \
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This makes using passphrases very convenient."
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if [[ -f $HOME/.ssh/$admin_name.pub ]]
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then
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if [[ -f $HOME/.ssh/$admin_name.pub ]]
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then
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prompt " ...reusing $HOME/.ssh/$admin_name.pub..." \
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"Hmmm... pubkey $HOME/.ssh/$admin_name.pub exists; should I just re-use it?
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Be sure you remember the passphrase, if you gave one when you created it!"
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else
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else
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ssh-keygen -t rsa -f $HOME/.ssh/$admin_name || die "ssh-keygen failed for some reason..."
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fi
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fi
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# MANUAL: copy the pubkey created to the server, say to /tmp. This would be
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# "scp ~/.ssh/sitaram.pub git@server:/tmp" (the script does this at a later
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# stage, you do it now for convenience). Note: only the pubkey (sitaram.pub).
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# Do NOT copy the ~/.ssh/sitaram file -- that is a private key!
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# MANUAL: copy the pubkey created to the server, say to /tmp. This would
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# be "scp ~/.ssh/sitaram.pub git@server:/tmp" (the script does this at a
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# later stage, you do it now for convenience). Note: only the pubkey
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# (sitaram.pub). Do NOT copy the ~/.ssh/sitaram file -- that is a private
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# key!
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# MANUAL: if you're running ssh-agent (see if you have an environment variable
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# called SSH_AGENT_PID in your "env"), you should add this new key. The
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# command is "ssh-add ~/.ssh/sitaram"
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# MANUAL: if you're running ssh-agent (see if you have an environment
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# variable called SSH_AGENT_PID in your "env"), you should add this new
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# key. The command is "ssh-add ~/.ssh/sitaram"
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if ssh-add -l &>/dev/null
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then
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if ssh-add -l &>/dev/null
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then
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prompt " ...adding key to agent..." \
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"you're running ssh-agent. We'll try and do an ssh-add of the
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private key we just created, otherwise this key won't get picked up. If
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@ -197,29 +217,29 @@ then
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now -- type in the same one."
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ssh-add $HOME/.ssh/$admin_name
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fi
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fi
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# MANUAL: you now need to add some lines to the end of your ~/.ssh/config
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# file. If the file doesn't exist, create it. Make sure the file is "chmod
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# 644".
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# MANUAL: you now need to add some lines to the end of your ~/.ssh/config
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# file. If the file doesn't exist, create it. Make sure the file is
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# "chmod 644".
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# The lines to be included look like this:
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# The lines to be included look like this:
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# host gitolite
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# user git
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# hostname server
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# port 22
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# identityfile ~/.ssh/sitaram
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# host gitolite
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# user git
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# hostname server
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# port 22
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# identityfile ~/.ssh/sitaram
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echo "
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echo "
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host gitolite
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user $user
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hostname $host
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port $port
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identityfile ~/.ssh/$admin_name" > $tmpgli/.gl-stanza
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if grep 'host *gitolite' $HOME/.ssh/config &>/dev/null
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then
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if grep 'host *gitolite' $HOME/.ssh/config &>/dev/null
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then
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prompt "found gitolite para in ~/.ssh/config; assuming it is correct..." \
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"your \$HOME/.ssh/config already has settings for gitolite. I will
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assume they're correct, but if they're not, please edit that file, delete
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@ -227,21 +247,22 @@ then
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In case you want to check right now (from another terminal) if they're
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correct, here's what they are *supposed* to look like:
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$(cat $tmpgli/.gl-stanza)"
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$(cat $tmpgli/.gl-stanza)"
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else
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else
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prompt "creating gitolite para in ~/.ssh/config..." \
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"creating settings for your gitolite access in $HOME/.ssh/config;
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these are the lines that will be appended to your ~/.ssh/config:
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$(cat $tmpgli/.gl-stanza)"
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$(cat $tmpgli/.gl-stanza)"
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cat $tmpgli/.gl-stanza >> $HOME/.ssh/config
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# if the file didn't exist at all, it might have the wrong permissions
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chmod 644 $HOME/.ssh/config
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fi
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fi
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}
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# ----------------------------------------------------------------------
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# client side stuff almost done; server side now
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# server side
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# ----------------------------------------------------------------------
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# MANUAL: copy the gitolite directories "src", "conf", and "doc" to the
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@ -323,42 +344,44 @@ prompt "installing/upgrading..." \
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GL_ADMINDIR=$(ssh -p $port $user@$host "perl -e 'do \".gitolite.rc\"; print \$GL_ADMINDIR'")
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REPO_BASE=$( ssh -p $port $user@$host "perl -e 'do \".gitolite.rc\"; print \$REPO_BASE'")
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# determine if this is an upgrade; we decide based on whether a file called
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# $GL_ADMINDIR/conf/gitolite.conf exists on the remote side. We can't do this
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# till we know the correct value for GL_ADMINDIR
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upgrade=0
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if ssh -p $port $user@$host cat $GL_ADMINDIR/conf/gitolite.conf &> /dev/null
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then
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upgrade=1
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[[ -n $admin_name ]] && echo "looks like an upgrade... not using new key '$admin_name' after all!"
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else
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[[ -z $admin_name ]] && die "this doesn't look like an upgrade... I need a name for the admin"
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fi
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# MANUAL: still in the "gitolite-install" directory? Good. Run
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# "src/install.pl"
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ssh -p $port $user@$host "cd gitolite-install; src/install.pl $quiet"
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# MANUAL: if you're upgrading, just go to your clone of the admin repo, make a
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# dummy change, and push. (This assumes that you didn't change the
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# admin_name, pubkeys, userids, ports, or whatever, and you ran easy install
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# only to upgrade the software). And then you are **done** -- ignore the rest
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# of this file for the purposes of an upgrade
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# MANUAL: if you're upgrading, run "src/gl-compile-conf" and you're done! --
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# ignore the rest of this file for the purposes of an upgrade
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# determine if this is an upgrade; we decide based on whether a pubkey called
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# $admin_name.pub exists in $GL_ADMINDIR/keydir on the remote side
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upgrade=0
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if ssh -p $port $user@$host cat $GL_ADMINDIR/keydir/$admin_name.pub &> /dev/null
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then
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prompt "done!
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[[ $upgrade == 1 ]] && {
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# just compile it, in case the config file's internal format has changed
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# and the hooks expect something different
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ssh -p $port $user@$host "cd $GL_ADMINDIR; src/gl-compile-conf $quiet"
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prompt "" "done!
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If you forgot the help message you saw when you first ran this, there's a
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somewhat generic version of it at the end of this file. Try:
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tail -30 $0
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" \
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"this looks like an upgrade, based on the fact that a file called
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$admin_name.pub already exists in $GL_ADMINDIR/keydir on the server.
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Please go to your clone of the admin repo, make a dummy change (like maybe
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add a blank line to something), commit, and push. You're done!
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(This assumes that you didn't change the admin_name, pubkeys, userids,
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ports, or whatever, and you ran easy install only to upgrade the
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software)."
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"
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exit 0
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}
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fi
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# ----------------------------------------------------------------------
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# from here on it's install only
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# ----------------------------------------------------------------------
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# MANUAL: setup the initial config file. Edit $GL_ADMINDIR/conf/gitolite.conf
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# and add at least the following lines to it:
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