entrypoint.sh

#!/bin/bash

# shellcheck disable=SC2001,SC2086

set -euo pipefail # Exit on errors and undefined variables.

MOD_PATH_RELATIVE="$1"
IGNORE_FILES="$2"
CHANGE_NOTE="$3"
COMMIT_MESSAGE="$4"

ISAAC_APP_ID="250900"
REPO_PATH=$(pwd)
MOD_PATH="$REPO_PATH/$MOD_PATH_RELATIVE"
METADATA_XML_PATH="$MOD_PATH/metadata.xml"

echo "The contents of the current directory (\"$REPO_PATH\") are:"
ls -al
echo

if [[ ! -d "$MOD_PATH" ]]; then
  echo "Error: The specified \"mod_path\" is not a directory: $MOD_PATH"
fi

echo "The contents of the mod_path (\"$MOD_PATH\") directory are:"
ls -al "$MOD_PATH"
echo

if [[ ! -f "$METADATA_XML_PATH" ]]; then
  echo "Error: The \"metadata.xml\" file was not found at: $METADATA_XML_PATH"
  exit 1
fi

# https://stackoverflow.com/questions/5811753/extract-the-first-number-from-a-string
METADATA_XML_ID=$(grep "<id>" "$METADATA_XML_PATH" | awk -F'[^0-9]+' '{ print $2 }')

if [[ -z "$CONFIG_VDF_CONTENTS" ]]; then
 echo "Error: The CONFIG_VDF_CONTENTS environment variable was blank."
 exit 1
fi

# Parse the provided "config.vdf" file for the Steam username.
# (The below variables cannot be quoted or else they will not work properly.)
CONFIG_VDF_CONTENTS_NO_WHITESPACE=$(echo $CONFIG_VDF_CONTENTS | sed 's/[[:blank:]]//g')
STEAM_USERNAME=$(echo $CONFIG_VDF_CONTENTS_NO_WHITESPACE | perl -lne 's/"Accounts"{"(.+?)"// or next; s/\s.*//; print $1')
if [[ -z "$STEAM_USERNAME" ]]; then
 echo "Error: Failed to parse the Steam username from the \"CONFIG_VDF_CONTENTS\" environment variable."
 exit 1
fi
echo "Parsed the Steam username from the \"config.vdf\" file: $STEAM_USERNAME"

# Blow away the existing "config.vdf" file with the one provided by the end-user.
CONFIG_VDF_PATH="/home/steam/Steam/config/config.vdf"
echo "$CONFIG_VDF_CONTENTS" > $CONFIG_VDF_PATH # The latter variable cannot be quoted.

# Parse the version from the commit message.
# https://stackoverflow.com/questions/16623835/remove-a-fixed-prefix-suffix-from-a-string-in-bash
VERSION=$(echo "$COMMIT_MESSAGE" | sed -e 's/^\s*chore: release\s*//')

FILLED_CHANGE_NOTE=$(echo "$CHANGE_NOTE" | sed -e "s/{VERSION}/$VERSION/g")

# Create the temporary vdf file that steamcmd uses for the upload operation.
WORKSHOP_VDF_PATH="/tmp/workshop.vdf"
cat << EOF > "$WORKSHOP_VDF_PATH"
"workshopitem"
{
  "appid"            "$ISAAC_APP_ID"
  "publishedfileid"  "$METADATA_XML_ID"
  "contentfolder"    "$MOD_PATH"
  "changenote"       "$FILLED_CHANGE_NOTE"
}
EOF

# Remove files/directories that being with a period, if present.
rm -rf "$MOD_PATH"/.[!.]*

# Remove the "disable.it" file, if present.
rm -rf "$MOD_PATH/disable.it"

# Remove files explicitly provided to us by the end-user.
IGNORE_FILES_ARRAY=("${IGNORE_FILES//,/ }")
for i in "${IGNORE_FILES_ARRAY[@]}"; do
  if [[ -n "$i" ]]; then
    rm -rf "${MOD_PATH:?}/$i"
  fi
done

echo "isaac-steam-workshop-upload is uploading the following files/directories from the mod_path directory (\"$MOD_PATH\"):"
ls -al "$MOD_PATH"
echo

echo "isaac-steam-workshop-upload is using the following vdf file:"
echo
cat "$WORKSHOP_VDF_PATH"
echo

export HOME=/home/steam
cd "$STEAMCMDDIR"

# The variables here cannot be quoted or else they will appear empty.
(/home/steam/steamcmd/steamcmd.sh \
    +login $STEAM_USERNAME \
    +workshop_build_item $WORKSHOP_VDF_PATH \
    +quit \
) || (
    # https://partner.steamgames.com/doc/features/workshop/implementation#SteamCmd
    echo "/home/steam/Steam/logs/stderr.txt"
    cat "/home/steam/Steam/logs/stderr.txt"
    echo
    echo "/home/steam/Steam/logs/workshop_log.txt"
    cat "/home/steam/Steam/logs/workshop_log.txt"
    echo
    echo "/home/steam/Steam/workshopbuilds/depot_build_$ISAAC_APP_ID.log"
    cat "/home/steam/Steam/workshopbuilds/depot_build_$ISAAC_APP_ID.log"

    exit 1
)

exit 0