reproducible build system (#4294)

- Move `m4` dir to `build/m4` to clean TLD
- create `build/build.sh` script which builds netdata in docker container
- create `build/Dockerfile` which creates reproducible build environment
- exclude `.lgtm.yml` from final package
- use `.tar.gz` package in `netdata.spec.in` as `*.xz` and `*.bz2` will be removed due to #3913

What it does is simple, you don't need any libraries installed on host to build netdata as they are provided inside a container.

1 files changed, 22 insertions, 0 deletions

diff --git a/build/build.sh b/build/build.sh
new file mode 100755
index 0000000000..ee087b98fd
--- /dev/null
+++ b/build/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+if [ -f build.sh ]; then
+    cd ../ || exit 1
+fi
+
+if [ "$IS_CONTAINER" != "" ]; then
+  autoreconf -ivf
+  ./configure --enable-maintainer-mode
+  make dist
+  rm -rf autom4te.cache
+else
+  if [[ "$(docker images -q netdata-gcc-builder:latest 2> /dev/null)" == "" ]]; then
+      docker build -t netdata-gcc-builder:latest -f build/Dockerfile .
+  fi
+  docker run --rm -it \
+    --env IS_CONTAINER=TRUE \
+    --volume "${PWD}:/project:Z" \
+    --workdir "/project" \
+    netdata:gcc \
+    ./.travis/build.sh
+fi