Add support for custom templeate file

Author: Gufran

build-custom.sh

@@ -0,0 +1,9 @@
+set -eou pipefail
+
+GIT_SHA=$(git rev-parse --short HEAD)
+LD_FLAGS_VERSION="-X github.com/kyleconroy/sqlc/internal/cmd.version=custom-${GIT_SHA}"
+
+export CGO_ENABLED=1
+
+set -x
+go build -v -o pkg/sqlc -ldflags "-extldflags \"-static\" ${LD_FLAGS_VERSION}" ./cmd/sqlc

custom.Dockerfile

@@ -0,0 +1,10 @@
+FROM golang:1.15 as builder
+
+COPY . /workspace
+WORKDIR /workspace
+
+RUN /bin/bash build-custom.sh
+
+FROM scratch
+COPY --from=builder /workspace/pkg/sqlc /sqlc
+ENTRYPOINT ["/sqlc"]