#!/bin/bash
# Author: Daniel Mohr
# Date: 2022-06-27
#
# This script should run as gitolite trigger at 'POST_GIT'.
# It will add a landing page on the default branch.
#
# If necessary, in the commited repository the branch 'landing_page'
# is created.
#
# In the branch 'landing_page' a file 'index.html' is created based
# on the default branch (HEAD)
# command line parameters and environment are desribed on:
# https://gitolite.com/gitolite/triggers.html
# run trigger from gitolite account command line:
# GL_LOGFILE="$HOME/.gitolite/logs/gitolite-2022-06.log" GL_REPO_BASE="$HOME/repositories" GL_REPO="foo/foo" /usr/share/gitolite3/triggers/riaf_landing_page POST_GIT foo/foo testuser W any git-receive-pack
# we should use jq to extract values from .dabu.json and
# present on landing page (e. g. author, license, ...)
# https://stedolan.github.io/jq/manual/
#set -e
runtime=$(date +%Y-%m-%d.%H:%M:%S)
if [ $# -gt 0 ]; then
# check command line parameters
trigger=$1
else
exit 1
fi
if [ "$trigger" != "POST_GIT" ]; then
# check first command line parameter
exit 1
fi
if [ "$6" != "git-receive-pack" ]; then
exit 0
fi
echo -e "$runtime\t$$\tdo riaf_landing_page $(date -Iseconds)" >> "$GL_LOGFILE"
# POST_GIT a/bar testuser W any git-receive-pack
# $HOME
# $GL_REPO_BASE
# $GL_REPO
# $GL_LOGFILE
# $GL_USER
repopath=$GL_REPO_BASE/$GL_REPO.git
tmpdira=$(mktemp --directory)
tmpdirb=$(mktemp --directory)
# Maybe we should use a better tmpdir to allow hardlinking (--local).
git clone --depth 1 --no-single-branch "$repopath" "$tmpdira"
# We assume here, that server_timestamping was done just before this script
# runs.
# check if last commit was on branch 'server_timestamping'
lastcommittedbranch=$(cd "$tmpdira" && git branch --list --all --sort=creatordate --format "%(refname)" | tail -n 1)
echo "$lastcommittedbranch" | grep --quiet "server_timestamping" && res=1 || res=0
if [ $res == 0 ]; then
# the last commit was not done to default branch (HEAD)
rm -rf "$tmpdira" "$tmpdirb"
echo -e "$runtime\t$$\tdo not riaf_landing_page on branch $lastcommittedbranch" >> "$GL_LOGFILE"
exit 0
fi
# check if metadata available
isdabu=0
if [ -f "$tmpdira/.dabu.json" ]; then
if [ -f "$tmpdira/.dabu.schema" ]; then
isdabu=1
fi
fi
if [ $isdabu = 0 ]; then
# no metadata availalbe
rm -rf "$tmpdira" "$tmpdirb"
echo -e "$runtime\t$$\tdo not riaf_landing_page without metadata in repo" >> "$GL_LOGFILE"
exit 0
fi
# check if metadata are ok
#jsonschema -i "$tmpdira/.dabu.json" "$tmpdira/.dabu.schema" ; dabunotOK=$?
pydabu check_data_bubble -dir "$tmpdira" ; dabunotOK=$?
if [ $dabunotOK = 0 ]; then
cp -p "$tmpdira/.dabu.json" "$tmpdira/.dabu.schema" "$tmpdirb"
else
pydabuerror=$(pydabu check_data_bubble -dir "$tmpdira")
fi
# set git environment in repo
(cd "$tmpdira" && git config user.name "$USER")
(cd "$tmpdira" && git config user.email "$USER@$(hostname)")
# check if branch landing_page available
(cd "$tmpdira" && git branch --list --all | grep --quiet landing_page) && res=1 || res=0
if [ $res == 0 ]; then
echo -e "$runtime\t$$\tcreate orphan branch landing_page in $repopath" >> "$GL_LOGFILE"
(cd "$tmpdira" && git checkout --orphan landing_page)
(cd "$tmpdira" && git reset --hard)
else
(cd "$tmpdira" && git checkout landing_page)
fi
index="$tmpdira/index.html"
{
echo ''
echo ''
echo ''
echo "$GL_REPO
"
} > "$index"
if [ $dabunotOK = 0 ]; then
cp -p "$tmpdirb/.dabu.json" "$tmpdira"
(cd "$tmpdira" && git add .dabu.json)
{
echo 'meta data ".dabu.json" follow ".dabu.schema"
'
echo ''
} >> "$index"
else
{
echo "error
"
echo 'meta data ".dabu.json" do not follow ".dabu.schema":'
echo "
$pydabuerror
"
} >> "$index"
fi
{
echo ''
echo ''
} >> "$index"
(cd "$tmpdira" && git add index.html)
if [ $dabunotOK = 0 ]; then
if [ $res == 0 ]; then
(cd "$tmpdira" && git commit -m "added landing page and .dabu.json")
else
(cd "$tmpdira" && git commit -m "updated landing page and adding .dabu.json")
fi
else
if [ $res == 0 ]; then
(cd "$tmpdira" && git commit -m "added landing page with error message")
else
(cd "$tmpdira" && git commit -m "updated landing page with error message")
fi
fi
if [ $res == 0 ]; then
(cd "$tmpdira" && git push --set-upstream origin landing_page)
else
(cd "$tmpdira" && git push)
fi
rm -rf "$tmpdira" "$tmpdirb"
#env > /data/gitolite/e1
#echo $* > /data/gitolite/e2
echo -e "$runtime\t$$\tdid riaf_landing_page in $repopath" >> "$GL_LOGFILE"