Example shell script to pull Crashlytics Gradle plugin and call it

fabric-android-shell.sh

#!/bin/sh

# Copyright 2017 Google Inc.

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

# https://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# The following is an example of calling our Android Gradle Fabric plugin via the command line shell

file=io-fabric-tools-gradle.jar # Define the plugin name so that we can download & execute it

# This is optional, but I wasn't sure if this would only be used by buck folks :)
get_fabric_tool () {
    path=http://maven.fabric.io/public/io/fabric/tools
    version=$(curl -Ls $path/maven-metadata.xml | grep release | sed "s/.*<release>\([^<]*\)<\/release>.*/\1/")

    if [ -f $file ]; then # Download if the file doesn't exist yet,
        echo using cached fabric tool, "$file"
    else
        jar=io-fabric-tools-gradle-"$version".jar
        echo downloading latest fabric tool, "$path/$version/$jar"
        wget -q -N "$path/$version/$jar"
        mv io-fabric-tools-gradle-"$version".jar "$file" # Rename so it has a predictable name
    fi
}
run_task () {
    args="$1-projectPath $project_path \n"
    args="$args-androidManifest $manifest_path \n"
    args="$args-androidBaseManifest $base_manifest_path \n"
    args="$args-androidRes $res_path \n"
    args="$args-androidAssets $assets_path \n"
    # Todo: only do this if there is a build id
    args="$args-buildId $build_id \n"
    args="$args-targetResValueDir $target_res_values_dir \n"
    # You might replace consider replacing this with 'buck', not super important
    args="$args-version 0.0 \n"
    args="$args-tool shell \n"
    if [ ! "$properties" = '' ] ; then
        args="$args-properties $properties \n"
    fi
    run_tool "$args"
}
run_ndk_task () {
    args="$args-enableNDK true \n"
    args="$args-androidNdkOut NDK_OUT_PROPERTY_NEEDED \n"
    args="$args-androidNdkLibsOut NDK_LIBS_OUT_PROPERTY_NEEDED \n"
    args="$args-cSymGen C_SYM_GEN_DIR_PROPERTY_NEEDED \n"
    args="$args-cSymCache C_SYM_CACHE_DIR_PROPERTY_NEEDED \n"
    args="$args-cSymArchive C_SYM_ARCHIVE_DIR_PROPERTY_NEEDED \n"
    run_task "$args"
}
run_tool () {
    echo "$@"
    echo "$@" | tr -d "\n" | xargs java -cp $file com.crashlytics.tools.android.DeveloperTools gradleMain
}
generate_resources () {
    args="-buildEvent  \n"
    args="$args-injectableManifest \n"
    # This task doesn't always need to be run, we only *really* need a new build id when you're doing a release build.
    target_res_file="$target_res_values_dir"/values/com_crashlytics_export_strings.xml
    if [ "$preserve_build_id" = true ] && [ -f "$target_res_file" ] ; then
        args="$args-preserveBuildId"
    fi
    run_task "-generateResourceFile  \n$args"
}
store_deobs () {
    args="-obfuscator proguard-via-shell \n"
    args="$args-obVer 0.0 \n"
    args="$args-obfuscating \n" # TODO: Remove this line if you are not obfuscating
    run_task "-storeDeobs $mapping_file \n$args"
}
upload_deobs () {
    # "There's an optional parameter, -requireUploadSuccess, that makes the build fail if the upload fails, otherwise mapping files are cached. 
    run_task "-uploadDeobs \n"
}
pre_build () { 
    generate_resources
    store_deobs
}
post_build () {
    upload_deobs
}
ndk_build () {
    run_ndk_task "-cacheCSyms \n"
    run_ndk_task "-generateCSyms \n"
    # Optional arg you can add to csym upload... especially if running on CI, you can require mapping.txt uploads to succeed:
    run_ndk_task "-uploadCSyms \n" #" -requireUploadSuccess \n"
}

preserve_build_id=false
mapping_file=PROPERTY_NEEDED
project_path=.
manifest_path=PROPERTY_NEEDED
base_manifest_path=PROPERTY_NEEDED
res_path=PROPERTY_NEEDED
assets_path=PROPERTY_NEEDED
target_res_values_dir=PROPERTY_NEEDED
properties=''
# IMPORTANT: This build_id must match between pre_build and post_build
build_id=$(uuidgen)

get_fabric_tool
pre_build
post_build