Add a script generating static builds

We have an obvious limitation: static builds won't support plugins. We
could resort to the classic method and do normal builds but on an old
distrib to dodge compatibility issues.

That would still be compatible with statically linking the more specific
libs, like e.g. z3.

build_release.sh

@@ -0,0 +1,39 @@
+#! /usr/bin/env sh
+
+set -ue
+
+CUSTOM_LINKING_CATALA_Z3="\
+(-cclib -static
+ -cclib -no-pie
+ -noautolink
+ -cclib -L/home/ocaml/.opam/z3/lib/stublibs
+ -cclib -lz3ml-static
+ -cclib -lz3
+ -cclib -lstdc++
+ -cclib -lthreadsnat
+ -cclib -lzarith
+ -cclib -lgmp
+ -cclib -lcamlstr
+ -cclib -lANSITerminal_stubs
+ -cclib -lunix)"
+
+CUSTOM_LINKING_CATALA_NOZ3="(-cclib -static -cclib -no-pie)"
+
+CUSTOM_LINKING_CLERK="(-cclib -static -cclib -no-pie)"
+
+git archive HEAD --prefix catala/ | \
+docker run --rm -i registry.gitlab.inria.fr/lgesbert/catala-ci-images:ocaml.4.14-z3static.4.10.1 \
+  sh -uexc \
+    '{ tar x &&
+       cd catala &&
+       echo "'"${CUSTOM_LINKING_CATALA_Z3}"'" >compiler/custom_linking.sexp &&
+       echo "'"${CUSTOM_LINKING_CLERK}"'" >build_system/custom_linking.sexp &&
+       opam --cli=2.1 install ./ninja_utils.opam ./clerk.opam ./catala.opam --destdir ../release.out/ &&
+       mv ../release.out/bin/catala ../release.out/bin/catala-z3 &&
+       opam --cli=2.1 remove z3 catala &&
+       echo "'"${CUSTOM_LINKING_CATALA_NOZ3}"'" >compiler/custom_linking.sexp &&
+       opam --cli=2.1 install ./catala.opam --destdir ../release.out/ &&
+       rm -f ../release.out/bin/catala_web_interpreter;
+       strip ../release.out/bin/*;
+     } >&2 && tar c -hC ../release.out/bin .' |
+tar vx

build_system/dune

@@ -16,9 +16,20 @@
   ANSITerminal)
  (modules clerk_driver))
 
+(rule
+ (target custom_linking.sexp)
+ (mode fallback)
+ (action
+  (with-stdout-to
+   %{target}
+   (echo "()"))))
+
 (executable
  (name clerk)
  (public_name clerk)
+ (flags
+  (:standard
+   (:include custom_linking.sexp)))
  (libraries clerk.driver)
  (modules clerk)
  (package clerk))

compiler/dune

@@ -28,9 +28,20 @@
   catala.runtime_ocaml
   catala.runtime_jsoo))
 
+(rule
+ (target custom_linking.sexp)
+ (mode fallback)
+ (action
+  (with-stdout-to
+   %{target}
+   (echo "()"))))
+
 (executable
  (name catala)
  (modes native js)
+ (flags
+  (:standard
+   (:include custom_linking.sexp)))
  (package catala)
  (modules catala)
  (public_name catala)