Switch to cohttp(lwt) instead of curl (#57)

This PR makes the fnm binary not to be dependent on `curl`!

Dockerfile

@@ -1,6 +1,6 @@
 FROM frolvlad/alpine-glibc
 
-RUN apk add --no-cache nodejs bash npm curl g++ make m4 patch gmp-dev perl git jq perl-utils
+RUN apk add --no-cache nodejs bash npm curl g++ make m4 patch gmp-dev perl git jq perl-utils libressl-dev
 
 USER root
 

README.md

@@ -95,7 +95,6 @@ Prints the required shell commands in order to configure your shell, Bash compli
 - [ ] Feature: `fnm install lts`?
 - [ ] OSX: Add to homebrew?
 - [ ] Windows Support?
-- [ ] Linux: Replace `curl` usage with `cohttp`/`ocurl` or something else which is statically-linkable
 - [ ] Linux: Replace `tar` with a statically linked library too (for ungzip + untar)
 
 ## Contributing

esy.lock/opam/astring.0.8.3/opam

@@ -0,0 +1,38 @@
+opam-version: "2.0"
+maintainer: "Daniel Bünzli <daniel.buenzl i@erratique.ch>"
+authors: ["Daniel Bünzli <daniel.buenzl i@erratique.ch>"]
+homepage: "http://erratique.ch/software/astring"
+doc: "http://erratique.ch/software/astring/doc"
+dev-repo: "git+http://erratique.ch/repos/astring.git"
+bug-reports: "https://github.com/dbuenzli/astring/issues"
+tags: [ "string" "org:erratique" ]
+license: "ISC"
+depends: [
+  "ocaml" {>= "4.01.0"}
+  "ocamlfind" {build}
+  "ocamlbuild" {build}
+  "topkg" {build}
+  "base-bytes"
+]
+build: [[
+  "ocaml" "pkg/pkg.ml" "build"
+          "--pinned" "%{pinned}%" ]]
+synopsis: "Alternative String module for OCaml"
+description: """
+Astring exposes an alternative `String` module for OCaml. This module
+tries to balance minimality and expressiveness for basic, index-free,
+string processing and provides types and functions for substrings,
+string sets and string maps.
+
+Remaining compatible with the OCaml `String` module is a non-goal. The
+`String` module exposed by Astring has exception safe functions,
+removes deprecated and rarely used functions, alters some signatures
+and names, adds a few missing functions and fully exploits OCaml's
+newfound string immutability.
+
+Astring depends only on the OCaml standard library. It is distributed
+under the ISC license."""
+url {
+  src: "http://erratique.ch/software/astring/releases/astring-0.8.3.tbz"
+  checksum: "md5=c5bf6352b9ac27fbeab342740f4fa870"
+}

esy.lock/opam/base-bytes.base/opam

@@ -0,0 +1,9 @@
+opam-version: "2.0"
+maintainer: " "
+authors: " "
+homepage: " "
+depends: [
+  "ocaml" {>= "4.02.0"}
+  "ocamlfind" {>= "1.5.3"}
+]
+synopsis: "Bytes library distributed with the OCaml compiler"

esy.lock/opam/base64.3.1.0/opam

@@ -0,0 +1,34 @@
+opam-version: "2.0"
+maintainer: "mirageos-devel@lists.xenproject.org"
+authors: [ "Thomas Gazagnaire"
+           "Anil Madhavapeddy"
+           "Peter Zotov" ]
+license: "ISC"
+homepage: "https://github.com/mirage/ocaml-base64"
+doc: "http://mirage.github.io/ocaml-base64/"
+bug-reports: "https://github.com/mirage/ocaml-base64/issues"
+dev-repo: "git+https://github.com/mirage/ocaml-base64.git"
+synopsis: "Base64 encoding for OCaml"
+description: """
+Base64 is a group of similar binary-to-text encoding schemes that represent
+binary data in an ASCII string format by translating it into a radix-64
+representation.  It is specified in RFC 4648.
+"""
+depends: [
+  "ocaml" {>="4.03.0"}
+  "base-bytes"
+  "dune" {build & >= "1.0.1"}
+  "bos" {with-test}
+  "rresult" {with-test}
+  "alcotest" {with-test}
+]
+build: [
+  ["dune" "subst"]
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name] {with-test}
+]
+url {
+  src:
+    "https://github.com/mirage/ocaml-base64/releases/download/v3.1.0/base64-v3.1.0.tbz"
+  checksum: "md5=9847073feb4272e513d8c832904e1af7"
+}

esy.lock/opam/cohttp-lwt-unix.2.0.0/opam

@@ -0,0 +1,50 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+synopsis: "CoHTTP implementation for Unix and Windows using Lwt"
+description: """
+An implementation of an HTTP client and server using the Lwt
+concurrency library. See the `Cohttp_lwt_unix` module for information
+on how to use this.  The package also installs `cohttp-curl-lwt`
+and a `cohttp-server-lwt` binaries for quick uses of a HTTP(S)
+client and server respectively.
+
+Although the name implies that this only works under Unix, it
+should also be fine under Windows too."""
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "conduit-lwt-unix" {>= "1.0.3"}
+  "cmdliner"
+  "magic-mime"
+  "logs"
+  "fmt" {>= "0.8.2"}
+  "cohttp-lwt"
+  "lwt" {>= "3.0.0"}
+  "base-unix"
+  "ounit" {with-test}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v2.0.0/cohttp-v2.0.0.tbz"
+  checksum: "md5=c354599fdb4f2625b6510182de0fc86b"
+}

esy.lock/opam/cohttp-lwt.2.0.0/opam

@@ -0,0 +1,46 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+synopsis: "CoHTTP implementation using the Lwt concurrency library"
+description: """
+This is a portable implementation of HTTP that uses the Lwt
+concurrency library to multiplex IO.  It implements as much of the
+logic in an OS-independent way as possible, so that more specialised
+modules can be tailored for different targets.  For example, you
+can install `cohttp-lwt-unix` or `cohttp-lwt-jsoo` for a Unix or
+JavaScript backend, or `cohttp-mirage` for the MirageOS unikernel
+version of the library. All of these implementations share the same
+IO logic from this module."""
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "cohttp" {>= "1.0.0"}
+  "lwt" {>= "2.5.0"}
+  "sexplib0" {< "v0.12"}
+  "ppx_sexp_conv" {>= "v0.9.0" & < "v0.12"}
+  "logs"
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v2.0.0/cohttp-v2.0.0.tbz"
+  checksum: "md5=c354599fdb4f2625b6510182de0fc86b"
+}

esy.lock/opam/cohttp.2.0.0/opam

@@ -0,0 +1,59 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy"
+  "Stefano Zacchiroli"
+  "David Sheets"
+  "Thomas Gazagnaire"
+  "David Scott"
+  "Rudi Grinberg"
+  "Andy Ray"
+]
+synopsis: "An OCaml library for HTTP clients and servers"
+description: """
+Cohttp is an OCaml library for creating HTTP daemons. It has a portable
+HTTP parser, and implementations using various asynchronous programming
+libraries.
+
+See the cohttp-async, cohttp-lwt, cohttp-lwt-unix, cohttp-lwt-jsoo and
+cohttp-mirage libraries for concrete implementations for particular
+targets.
+
+You can implement other targets using the parser very easily. Look at the `IO`
+signature in `lib/s.mli` and implement that in the desired backend.
+
+You can activate some runtime debugging by setting `COHTTP_DEBUG` to any
+value, and all requests and responses will be written to stderr.  Further
+debugging of the connection layer can be obtained by setting `CONDUIT_DEBUG`
+to any value."""
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-cohttp"
+doc: "https://mirage.github.io/ocaml-cohttp/"
+bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
+depends: [
+  "ocaml" {>= "4.04.1"}
+  "dune" {build & >= "1.1.0"}
+  "re" {>= "1.7.2"}
+  "uri" {>= "2.0.0"}
+  "fieldslib" {< "v0.12"}
+  "sexplib0" {< "v0.12"}
+  "ppx_fields_conv" {>= "v0.9.0" & < "v0.12"}
+  "ppx_sexp_conv" {>= "v0.9.0" & < "v0.12"}
+  "stringext"
+  "base64" {>= "3.1.0"}
+  "fmt" {with-test}
+  "jsonm" {build}
+  "alcotest" {with-test}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-cohttp.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-cohttp/releases/download/v2.0.0/cohttp-v2.0.0.tbz"
+  checksum: "md5=c354599fdb4f2625b6510182de0fc86b"
+}

esy.lock/opam/conduit-lwt-unix.1.4.0/opam

@@ -0,0 +1,34 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy" "Thomas Leonard" "Thomas Gazagnaire" "Rudi Grinberg"
+]
+license: "ISC"
+tags: "org:mirage"
+homepage: "https://github.com/mirage/ocaml-conduit"
+bug-reports: "https://github.com/mirage/ocaml-conduit/issues"
+depends: [
+  "ocaml" {>= "4.03.0"}
+  "dune" {build}
+  "base-unix"
+  "ppx_sexp_conv" {< "v0.12"}
+  "conduit-lwt" {>="1.4.0"}
+  "lwt" {>= "3.0.0"}
+  "uri" {>= "1.9.4"}
+  "ipaddr" {>= "3.0.0"}
+]
+depopts: ["tls" "lwt_ssl" "launchd"]
+conflicts: [
+  "tls" {< "0.8.0"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+]
+dev-repo: "git+https://github.com/mirage/ocaml-conduit.git"
+synopsis: "A network connection establishment library for Lwt_unix"
+url {
+  src:
+    "https://github.com/mirage/ocaml-conduit/releases/download/v1.4.0/conduit-v1.4.0.tbz"
+  checksum: "md5=204222b8a61692083b79c67c8967fb28"
+}

esy.lock/opam/conduit-lwt.1.4.0/opam

@@ -0,0 +1,29 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy" "Thomas Leonard" "Thomas Gazagnaire" "Rudi Grinberg"
+]
+license: "ISC"
+tags: "org:mirage"
+homepage: "https://github.com/mirage/ocaml-conduit"
+bug-reports: "https://github.com/mirage/ocaml-conduit/issues"
+depends: [
+  "ocaml" {>= "4.03.0"}
+  "dune" {build}
+  "base-unix"
+  "ppx_sexp_conv" {< "v0.12"}
+  "sexplib" {< "v0.12"}
+  "conduit" {="1.4.0"}
+  "lwt" {>= "3.0.0"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+]
+dev-repo: "git+https://github.com/mirage/ocaml-conduit.git"
+synopsis: "A portable network connection establishment library using Lwt"
+url {
+  src:
+    "https://github.com/mirage/ocaml-conduit/releases/download/v1.4.0/conduit-v1.4.0.tbz"
+  checksum: "md5=204222b8a61692083b79c67c8967fb28"
+}

esy.lock/opam/conduit.1.4.0/opam

@@ -0,0 +1,53 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: [
+  "Anil Madhavapeddy" "Thomas Leonard" "Thomas Gazagnaire" "Rudi Grinberg"
+]
+license: "ISC"
+tags: "org:mirage"
+homepage: "https://github.com/mirage/ocaml-conduit"
+doc: "https://mirage.github.io/ocaml-conduit/"
+bug-reports: "https://github.com/mirage/ocaml-conduit/issues"
+depends: [
+  "ocaml" {>= "4.03.0"}
+  "dune" {build}
+  "ppx_sexp_conv" {< "v0.12"}
+  "sexplib" {< "v0.12"}
+  "astring"
+  "uri"
+  "result"
+  "logs" {>= "0.5.0"}
+  "ipaddr" {>= "3.0.0"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+]
+dev-repo: "git+https://github.com/mirage/ocaml-conduit.git"
+synopsis: "A network connection establishment library"
+description: """
+The `conduit` library takes care of establishing and listening for 
+TCP and SSL/TLS connections for the Lwt and Async libraries.
+
+The reason this library exists is to provide a degree of abstraction
+from the precise SSL library used, since there are a variety of ways
+to bind to a library (e.g. the C FFI, or the Ctypes library), as well
+as well as which library is used (just OpenSSL for now).
+
+By default, OpenSSL is used as the preferred connection library, but
+you can force the use of the pure OCaml TLS stack by setting the
+environment variable `CONDUIT_TLS=native` when starting your program.
+
+The useful opam packages available that extend this library are:
+
+- `conduit`: the main `Conduit` module
+- `conduit-lwt`: the portable Lwt implementation
+- `conduit-lwt-unix`: the Lwt/Unix implementation
+- `conduit-async` the Jane Street Async implementation
+- `mirage-conduit`: the MirageOS compatible implementation
+"""
+url {
+  src:
+    "https://github.com/mirage/ocaml-conduit/releases/download/v1.4.0/conduit-v1.4.0.tbz"
+  checksum: "md5=204222b8a61692083b79c67c8967fb28"
+}

esy.lock/opam/conf-openssl.1/files/osx-build.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+if [ -e "$HOME/.nix-profile/lib/pkgconfig/openssl.pc" ]; then
+  # Nix on macOS
+  res=$(env PKG_CONFIG_PATH=$HOME/.nix-profile/lib/pkgconfig pkg-config openssl)
+  if [ $? -eq 0 ]; then
+    echo $res
+    exit 0
+  fi
+fi
+
+if [ -e "/usr/local/opt/openssl/lib/pkgconfig/openssl.pc" ]; then
+  # Homebrew
+  res=$(env PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig pkg-config openssl)
+  if [ $? -eq 0 ]; then
+    echo $res
+    exit 0
+  fi
+fi
+
+# MacPorts
+PKG_CONFIG_PATH=/opt/local/lib/pkgconfig pkg-config openssl

esy.lock/opam/conf-openssl.1/opam

@@ -0,0 +1,30 @@
+opam-version: "2.0"
+maintainer: "David Sheets <sheets@alum.mit.edu>"
+authors: ["The OpenSSL Project"]
+bug-reports: "https://github.com/ocaml/opam-repository/issues"
+homepage: "https://www.openssl.org/"
+license: "Apache-1.0"
+build: [
+  ["pkg-config" "openssl"]
+    {os != "macos" & os != "freebsd" & os != "openbsd" & os != "netbsd"}
+  ["./osx-build.sh"] {os = "macos"}
+]
+depends: ["conf-pkg-config" {build}]
+depexts: [
+  ["libssl-dev"] {os-distribution = "debian"}
+  ["libssl-dev"] {os-distribution = "ubuntu"}
+  ["openssl-devel"] {os-distribution = "centos"}
+  ["openssl-devel"] {os-distribution = "oraclelinux"}
+  ["openssl-devel"] {os-distribution = "fedora"}
+  ["openssl"] {os = "macos" & os-distribution = "homebrew"}
+  ["openssl"] {os = "macos" & os-distribution = "macports"}
+  ["libressl-dev"] {os-distribution = "alpine"}
+  ["openssl"] {os-distribution = "nixos"}
+  ["openssl"] {os-distribution = "archlinux"}
+  ["libopenssl-devel"] {os-family = "suse"}
+]
+synopsis: "Virtual package relying on an OpenSSL system installation"
+description:
+  "This package can only install if OpenSSL is installed on the system."
+extra-files: ["osx-build.sh" "md5=978504ca8c262cde48a71da6f11f2073"]
+flags: conf

esy.lock/opam/conf-pkg-config.1.1/opam

@@ -0,0 +1,38 @@
+opam-version: "2.0"
+maintainer: "unixjunkie@sdf.org"
+authors: ["Francois Berenger"]
+homepage: "http://www.freedesktop.org/wiki/Software/pkg-config/"
+bug-reports: "https://github.com/ocaml/opam-repository/issues"
+license: "GPL"
+build: [
+  ["pkg-config" "--help"]
+]
+install: [
+  ["ln" "-s" "/usr/local/bin/pkgconf" "%{bin}%/pkg-config"] {os = "openbsd"}
+]
+remove: [
+  ["rm" "-f" "%{bin}%/pkg-config"] {os = "openbsd"}
+]
+post-messages: [
+  "conf-pkg-config: A symlink to /usr/local/bin/pkgconf has been installed in the OPAM bin directory (%{bin}%) on your PATH as 'pkg-config'. This is necessary for correct operation." {os = "openbsd"}
+]
+depexts: [
+  ["pkg-config"] {os-distribution = "debian"}
+  ["pkg-config"] {os-distribution = "ubuntu"}
+  ["pkg-config"] {os-distribution = "archlinux"}
+  ["pkgconfig"] {os-distribution = "fedora"}
+  ["pkgconfig"] {os-distribution = "centos"}
+  ["pkgconfig"] {os-distribution = "mageia"}
+  ["pkgconfig"] {os-distribution = "rhel"}
+  ["pkgconfig"] {os-distribution = "oraclelinux"}
+  ["pkgconfig"] {os-distribution = "alpine"}
+  ["devel/pkgconf"] {os = "freebsd"}
+  ["devel/pkgconf"] {os = "openbsd"}
+  ["pkg-config"] {os = "macos" & os-distribution = "homebrew"}
+  ["pkgconf"] {os = "freebsd"}
+]
+synopsis: "Virtual package relying on pkg-config installation"
+description: """
+This package can only install if the pkg-config package is installed
+on the system."""
+flags: conf

esy.lock/opam/fmt.0.8.5/opam

@@ -0,0 +1,43 @@
+opam-version: "2.0"
+maintainer: "Daniel Bünzli <daniel.buenzl i@erratique.ch>"
+authors: [
+  "Daniel Bünzli <daniel.buenzl i@erratique.ch>"
+  "Gabriel Radanne"
+]
+homepage: "http://erratique.ch/software/fmt"
+doc: "http://erratique.ch/software/fmt"
+dev-repo: "git+http://erratique.ch/repos/fmt.git"
+bug-reports: "https://github.com/dbuenzli/fmt/issues"
+tags: [ "string" "format" "pretty-print" "org:erratique" ]
+license: "ISC"
+depends: [
+  "ocaml" {>= "4.01.0"}
+  "ocamlfind" {build}
+  "ocamlbuild" {build}
+  "topkg" {build & >= "0.9.0"}
+  "result"
+  "uchar"
+]
+depopts: [ "base-unix" "cmdliner" ]
+conflicts: [ "cmdliner" {< "0.9.8"} ]
+build: [[
+  "ocaml" "pkg/pkg.ml" "build"
+          "--dev-pkg" "%{pinned}%"
+          "--with-base-unix" "%{base-unix:installed}%"
+          "--with-cmdliner" "%{cmdliner:installed}%" ]]
+synopsis: "OCaml Format pretty-printer combinators"
+description: """
+Fmt exposes combinators to devise `Format` pretty-printing functions.
+
+Fmt depends only on the OCaml standard library. The optional `Fmt_tty`
+library that allows to setup formatters for terminal color output
+depends on the Unix library. The optional `Fmt_cli` library that
+provides command line support for Fmt depends on [`Cmdliner`][cmdliner].
+
+Fmt is distributed under the ISC license.
+
+[cmdliner]: http://erratique.ch/software/cmdliner"""
+url {
+  src: "http://erratique.ch/software/fmt/releases/fmt-0.8.5.tbz"
+  checksum: "md5=77b64aa6f20f09de28f2405d6195f12c"
+}

esy.lock/opam/ipaddr.3.0.0/opam

@@ -0,0 +1,47 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: ["David Sheets" "Anil Madhavapeddy" "Hugo Heuzard"]
+synopsis: "A library for manipulation of IP (and MAC) address representations"
+description: """
+Features:
+ * Depends only on sexplib (conditionalization under consideration)
+ * oUnit-based tests
+ * IPv4 and IPv6 support
+ * IPv4 and IPv6 CIDR prefix support
+ * IPv4 and IPv6 [CIDR-scoped address](http://tools.ietf.org/html/rfc4291#section-2.3) support
+ * `Ipaddr.V4` and `Ipaddr.V4.Prefix` modules are `Map.OrderedType`
+ * `Ipaddr.V6` and `Ipaddr.V6.Prefix` modules are `Map.OrderedType`
+ * `Ipaddr` and `Ipaddr.Prefix` modules are `Map.OrderedType`
+ * `Ipaddr_unix` in findlib subpackage `ipaddr.unix` provides compatibility with the standard library `Unix` module
+ * `Ipaddr_top` in findlib subpackage `ipaddr.top` provides top-level pretty printers (requires compiler-libs default since OCaml 4.0)
+ * IP address scope classification
+ * IPv4-mapped addresses in IPv6 (::ffff:0:0/96) are an embedding of IPv4
+ * MAC-48 (Ethernet) address support
+ * `Macaddr` is a `Map.OrderedType`
+ * All types have sexplib serializers/deserializers
+"""
+
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-ipaddr"
+doc: "https://mirage.github.io/ocaml-ipaddr/"
+bug-reports: "https://github.com/mirage/ocaml-ipaddr/issues"
+depends: [
+  "ocaml" {>= "4.04.0"}
+  "dune" {build}
+  "macaddr"
+  "sexplib0" {< "v0.12"}
+  "ounit" {with-test}
+  "ppx_sexp_conv" {with-test & < "v0.12"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+dev-repo: "git+https://github.com/mirage/ocaml-ipaddr.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-ipaddr/releases/download/3.0.0/ipaddr-3.0.0.tbz"
+  checksum: "md5=29248b09ead9ac272cd0f4c8ae934082"
+}

esy.lock/opam/jsonm.1.0.1/opam

@@ -0,0 +1,37 @@
+opam-version: "2.0"
+maintainer: "Daniel Bünzli <daniel.buenzl i@erratique.ch>"
+authors: ["Daniel Bünzli <daniel.buenzl i@erratique.ch>"]
+homepage: "http://erratique.ch/software/jsonm"
+doc: "http://erratique.ch/software/jsonm/doc/Jsonm"
+dev-repo: "git+http://erratique.ch/repos/jsonm.git"
+bug-reports: "https://github.com/dbuenzli/jsonm/issues"
+tags: [ "json" "codec" "org:erratique" ]
+license: "ISC"
+depends: [
+  "ocaml" {>= "4.01.0"}
+  "ocamlfind" {build}
+  "ocamlbuild" {build}
+  "topkg" {build}
+  "uchar"
+  "uutf" {>= "1.0.0"}
+]
+build:[[
+  "ocaml" "pkg/pkg.ml" "build"
+          "--pinned" "%{pinned}%" ]]
+synopsis: "Non-blocking streaming JSON codec for OCaml"
+description: """
+Jsonm is a non-blocking streaming codec to decode and encode the JSON
+data format. It can process JSON text without blocking on IO and
+without a complete in-memory representation of the data.
+
+The alternative "uncut" codec also processes whitespace and
+(non-standard) JSON with JavaScript comments.
+
+Jsonm is made of a single module and depends on [Uutf][uutf]. It is distributed
+under the ISC license.
+
+[uutf]: http://erratique.ch/software/uutf"""
+url {
+  src: "http://erratique.ch/software/jsonm/releases/jsonm-1.0.1.tbz"
+  checksum: "md5=e2ca39eaefd55b8d155c4f1ec5885311"
+}

esy.lock/opam/logs.0.6.2/opam

@@ -0,0 +1,57 @@
+opam-version: "2.0"
+maintainer: "Daniel Bünzli <daniel.buenzl i@erratique.ch>"
+authors: ["Daniel Bünzli <daniel.buenzl i@erratique.ch>"]
+homepage: "http://erratique.ch/software/logs"
+doc: "http://erratique.ch/software/logs/doc"
+dev-repo: "git+http://erratique.ch/repos/logs.git"
+bug-reports: "https://github.com/dbuenzli/logs/issues"
+tags: [ "log" "system" "org:erratique" ]
+license: "ISC"
+depends: [
+  "ocaml" {>= "4.01.0"}
+  "ocamlfind" {build}
+  "ocamlbuild" {build}
+  "topkg" {build}
+  "result"
+  "mtime" {with-test}
+]
+depopts: [
+  "js_of_ocaml"
+  "fmt"
+  "cmdliner"
+  "lwt" ]
+conflicts: [ "cmdliner" {< "0.9.8"} ]
+build: [[
+  "ocaml" "pkg/pkg.ml" "build"
+          "--pinned" "%{pinned}%"
+          "--with-js_of_ocaml" "%{js_of_ocaml:installed}%"
+          "--with-fmt" "%{fmt:installed}%"
+          "--with-cmdliner" "%{cmdliner:installed}%"
+          "--with-lwt" "%{lwt:installed}%" ]]
+synopsis: "Logging infrastructure for OCaml"
+description: """
+Logs provides a logging infrastructure for OCaml. Logging is performed
+on sources whose reporting level can be set independently. Log message
+report is decoupled from logging and is handled by a reporter.
+
+A few optional log reporters are distributed with the base library and
+the API easily allows to implement your own.
+
+`Logs` depends only on the `result` compatibility package. The
+optional `Logs_fmt` reporter on OCaml formatters depends on [Fmt][fmt].
+The optional `Logs_browser` reporter that reports to the web browser
+console depends on [js_of_ocaml][jsoo]. The optional `Logs_cli` library
+that provides command line support for controlling Logs depends on
+[`Cmdliner`][cmdliner]. The optional `Logs_lwt` library that provides Lwt logging
+functions depends on [`Lwt`][lwt]
+
+Logs and its reporters are distributed under the ISC license.
+
+[fmt]: http://erratique.ch/software/fmt
+[jsoo]: http://ocsigen.org/js_of_ocaml/
+[cmdliner]: http://erratique.ch/software/cmdliner
+[lwt]: http://ocsigen.org/lwt/"""
+url {
+  src: "http://erratique.ch/software/logs/releases/logs-0.6.2.tbz"
+  checksum: "md5=19f824c02c83c6dddc3bfb6459e4743e"
+}

esy.lock/opam/lwt_ssl.1.1.2/opam

@@ -0,0 +1,28 @@
+opam-version: "2.0"
+version: "1.1.2"
+homepage: "https://github.com/aantron/lwt_ssl"
+doc: "https://github.com/aantron/lwt_ssl/blob/master/src/lwt_ssl.mli"
+bug-reports: "https://github.com/aantron/lwt_ssl/issues"
+license: "LGPL with OpenSSL linking exception"
+
+authors: [
+  "Jérôme Vouillon"
+  "Jérémie Dimino"
+]
+maintainer: "Anton Bachin <antonbachin@yahoo.com>"
+dev-repo: "git+https://github.com/aantron/lwt_ssl.git"
+depends: [
+  "ocaml"
+  "base-unix"
+  "jbuilder" {build & >= "1.0+beta10"}
+  "lwt" {>= "3.0.0"}
+  "ssl" {>= "0.5.0"}
+]
+build: [
+  ["jbuilder" "build" "-p" name "-j" jobs]
+]
+synopsis: "OpenSSL binding with concurrent I/O"
+url {
+  src: "https://github.com/aantron/lwt_ssl/archive/1.1.2.tar.gz"
+  checksum: "md5=d239353b1e7c6e3fd4192c71a3b25ce2"
+}

esy.lock/opam/macaddr.3.0.0/opam

@@ -0,0 +1,38 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: ["David Sheets" "Anil Madhavapeddy" "Hugo Heuzard"]
+synopsis: "A library for manipulation of MAC address representations"
+description: """
+Manipulate 48-bit Ethernet MAC addresses using this library.
+
+There are the following ocamlfind libraries included as part of this
+package:
+
+- `macaddr`: The `Macaddr` module for MAC address manipulation.
+- `macaddr.top`: Toplevel printers for Macaddr.
+- `macaddr.sexp`: S-expression converters for Macaddr.
+"""
+
+license: "ISC"
+tags: ["org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-ipaddr"
+doc: "https://mirage.github.io/ocaml-ipaddr/"
+bug-reports: "https://github.com/mirage/ocaml-ipaddr/issues"
+depends: [
+  "ocaml" {>= "4.04.0"}
+  "dune" {build}
+  "sexplib0" {< "v0.12"}
+  "ounit" {with-test}
+  "ppx_sexp_conv" {with-test & < "v0.12"}
+]
+conflicts: [ "ipaddr" {< "3.0.0"} ]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+]
+dev-repo: "git+https://github.com/mirage/ocaml-ipaddr.git"
+url {
+  src:
+    "https://github.com/mirage/ocaml-ipaddr/releases/download/3.0.0/ipaddr-3.0.0.tbz"
+  checksum: "md5=29248b09ead9ac272cd0f4c8ae934082"
+}

esy.lock/opam/magic-mime.1.1.1/opam

@@ -0,0 +1,38 @@
+opam-version: "2.0"
+name: "magic-mime"
+synopsis: "Map filenames to common MIME types"
+description: """
+This library contains a database of MIME types that maps filename extensions
+into MIME types suitable for use in many Internet protocols such as HTTP or
+e-mail.  It is generated from the `mime.types` file found in Unix systems, but
+has no dependency on a filesystem since it includes the contents of the
+database as an ML datastructure.
+
+For example, here's how to lookup MIME types in the [utop] REPL:
+
+    #require "magic-mime";;
+    Magic_mime.lookup "/foo/bar.txt";;
+    - : bytes = "text/plain"
+    Magic_mime.lookup "bar.css";;
+    - : bytes = "text/css"
+"""
+maintainer: "Anil Madhavapeddy <anil@recoil.org>"
+authors: ["Anil Madhavapeddy" "Maxence Guesdon"]
+license: "ISC"
+homepage: "https://github.com/mirage/ocaml-magic-mime"
+doc: "https://mirage.github.io/ocaml-magic-mime/"
+bug-reports: "https://github.com/mirage/ocaml-magic-mime/issues"
+dev-repo: "git+https://github.com/mirage/ocaml-magic-mime.git"
+depends: [
+  "ocaml" {>= "4.03.0"}
+  "dune" {build}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+]
+url {
+  src:
+    "https://github.com/mirage/ocaml-magic-mime/releases/download/v1.1.1/magic-mime-v1.1.1.tbz"
+  checksum: "md5=8430a2686206517f2753e47c9c038b5c"
+}

esy.lock/opam/ssl.0.5.7/opam

@@ -0,0 +1,24 @@
+opam-version: "2.0"
+maintainer: "Christopher Zimmermann <christopher@gmerlin.de>"
+homepage: "https://github.com/savonet/ocaml-ssl"
+dev-repo: "git+https://github.com/savonet/ocaml-ssl.git"
+bug-reports: "https://github.com/savonet/ocaml-ssl/issues"
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+]
+depends: [
+  "ocaml" {>= "4.02.0"}
+  "dune" {build & >= "1.2.1"}
+  "base-unix"
+  "conf-openssl"
+]
+synopsis: "Bindings for OpenSSL"
+authors: "Samuel Mimram <samuel.mimram@ens-lyon.org>"
+url {
+  src: "https://github.com/savonet/ocaml-ssl/archive/0.5.7.tar.gz"
+  checksum: [
+    "md5=47ce60f1a019ddb9c66c4f1c8b9ed862"
+    "sha512=b412cbdcd92ee3ba227161d804d20b32c8cbda2e4eb0c195adb5d47b56b25e3ce8c831b9f4fae1c76d21b61df1b151745c9477cb850851f712ebb01146c69e7a"
+  ]
+}

esy.lock/opam/stringext.1.5.0/opam

@@ -0,0 +1,27 @@
+opam-version: "2.0"
+maintainer:   "rudi.grinberg@gmail.com"
+authors:      "Rudi Grinberg"
+homepage:     "https://github.com/rgrinberg/stringext"
+bug-reports:  "https://github.com/rgrinberg/stringext/issues"
+license:      "MIT"
+dev-repo: "git+https://github.com/rgrinberg/stringext.git"
+build: [
+  ["jbuilder" "subst" "-p" name] {pinned}
+  ["jbuilder" "build" "-p" name "-j" jobs]
+  ["jbuilder" "runtest" "-p" name "-j" jobs] {with-test}
+]
+depends: [
+  "ocaml" {>= "4.02.3"}
+  "jbuilder" {build & >= "1.0+beta10"}
+  "ounit" {with-test}
+  "qtest" {with-test & >= "2.2"}
+  "base-bytes"
+]
+synopsis: "Extra string functions for OCaml"
+description: """
+Extra string functions for OCaml. Mainly splitting. All functions are in the
+`Stringext` module."""
+url {
+  src: "https://github.com/rgrinberg/stringext/archive/1.5.0.zip"
+  checksum: "md5=867263ea97532f150516677fa994cdf2"
+}

esy.lock/opam/uri.2.2.0/opam

@@ -0,0 +1,33 @@
+opam-version: "2.0"
+maintainer: "anil@recoil.org"
+authors: ["Anil Madhavapeddy" "David Sheets" "Rudi Grinberg"]
+license: "ISC"
+tags: ["url" "uri" "org:mirage" "org:xapi-project"]
+homepage: "https://github.com/mirage/ocaml-uri"
+bug-reports: "https://github.com/mirage/ocaml-uri/issues"
+dev-repo: "git+https://github.com/mirage/ocaml-uri.git"
+doc: "https://mirage.github.io/ocaml-uri/"
+synopsis: "An RFC3986 URI/URL parsing library"
+description: """
+This is an OCaml implementation of the [RFC3986](http://tools.ietf.org/html/rfc3986) specification 
+for parsing URI or URLs.
+"""
+depends: [
+  "ocaml" {>= "4.04.0"}
+  "dune" {build & >= "1.2.0"}
+  "ounit" {with-test & >= "1.0.2"}
+  "ppx_sexp_conv" {build & >= "v0.9.0" & < "v0.12"}
+  "re" {>= "1.7.2"}
+  "sexplib0" {< "v0.12"}
+  "stringext" {>= "1.4.0"}
+]
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+url {
+  src:
+    "https://github.com/mirage/ocaml-uri/releases/download/v2.2.0/uri-v2.2.0.tbz"
+  checksum: "md5=e52e17fc6cc3491ab44994e6ebc5664c"
+}

esy.lock/overrides/opam__s__conf_pkg_config_opam__c__1.1_opam_override/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "yarn-pkg-config": "esy-ocaml/yarn-pkg-config#d488cd9321cd5036bd36ec96744ce78c5d45fc49"
+  }
+}

executable/dune

@@ -7,6 +7,6 @@
    (name FnmApp)  ;  From package.json main field
    ; The name of the executable (runnable via esy x fnm.exe) 
    (public_name fnm.exe)  ;  From package.json name field
-   (libraries  core cmdliner lwt lwt.unix lambdasoup console.lib pastel.lib fnm.lib ) ;  From package.json require field (array of strings)
+   (libraries  core cmdliner lwt lambdasoup console.lib pastel.lib fnm.lib ) ;  From package.json require field (array of strings)
    (preprocess ( pps lwt_ppx ppx_let ))  ; From package.json preprocess field
 )

library/Http.re

@@ -1,3 +1,8 @@
+open Lwt;
+open Cohttp;
+open Cohttp_lwt;
+open Cohttp_lwt_unix;
+
 type response = {
   body: string,
   status: int,
@@ -6,57 +11,29 @@ type response = {
 let body = response => response.body;
 let status = response => response.status;
 
-let rec getBody = listOfStrings =>
-  switch (listOfStrings) {
-  | [] => ""
-  | ["", ...rest] => String.concat("\n", rest)
-  | [_, ...xs] => getBody(xs)
-  };
-
-let getStatus = string =>
-  List.nth(String.split_on_char(' ', string), 1) |> int_of_string;
-
 exception Unknown_status_code(int, response);
 exception Not_found(response);
 exception Internal_server_error(response);
 
-let verifyStatus = response =>
+let rec makeRequest = url =>
-  switch (response.status) {
+  Uri.of_string(url)
-  | 200 => Lwt.return(response)
+  |> Cohttp_lwt_unix.Client.get
-  | x when x / 100 == 4 => Lwt.fail(Not_found(response))
+  >>= (
-  | x when x / 100 == 5 => Lwt.fail(Internal_server_error(response))
+    ((resp, body)) => {
-  | x => Lwt.fail(Unknown_status_code(response.status, response))
+      let status = resp |> Response.status;
-  };
+      let code_of_status = status |> Code.code_of_status;
-
+      let location = resp |> Response.headers |> Header.get_location;
-let rec skipRedirects = (~skipping=false, lines) =>
+
-  switch (skipping, lines) {
+      switch (Code.is_redirection(code_of_status), location) {
-  | (_, []) => failwith("Response is empty")
+      | (true, Some(uri)) => makeRequest(Uri.to_string(uri))
-  | (true, ["", ...xs]) => skipRedirects(~skipping=false, xs)
+      | _ =>
-  | (true, [x, ...xs]) => skipRedirects(~skipping=true, xs)
+        let%lwt body = body |> Cohttp_lwt.Body.to_string;
-  | (false, [x, ...xs])
+        Lwt.return({status: code_of_status, body});
-      when Str.first_chars(x, 4) == "HTTP" && getStatus(x) / 100 == 3 =>
-    skipRedirects(~skipping=true, xs)
-  | (false, xs) => xs
-  };
-
-let parseResponse = lines => {
-  let linesAfterRedirect = skipRedirects(lines);
-  let body = getBody(linesAfterRedirect);
-  let status = getStatus(linesAfterRedirect |> List.hd);
-  {body, status};
-};
-
-let makeRequest = url => {
-  let%lwt response =
-    System.unix_exec("curl", ~args=[|url, "-D", "-", "--silent"|]);
-  response |> parseResponse |> verifyStatus;
       };
+    }
+  );
 
 let download = (url, ~into) => {
-  let%lwt response =
+  let%lwt _ = makeRequest(url) >>= (({body}) => Fs.writeFile(into, body));
-    System.unix_exec(
+  Lwt.return();
-      "curl",
-      ~args=[|url, "-L", "-D", "-", "--silent", "-o", into|],
-    );
-  response |> parseResponse |> verifyStatus;
 };

library/dune

@@ -7,6 +7,6 @@
    (name Fnm)
    ; Other libraries list this name in their package.json 'require' field to use this library.
    (public_name fnm.lib)
-   (libraries  str core lwt lwt.unix lambdasoup semver )
+   (libraries  str core lwt ssl lwt_ssl lambdasoup semver cohttp cohttp-lwt cohttp-lwt-unix )
    (preprocess ( pps lwt_ppx ppx_let ))  ; From package.json preprocess field
 )

package.json

@@ -34,9 +34,13 @@
         "str",
         "core",
         "lwt",
-        "lwt.unix",
+        "ssl",
+        "lwt_ssl",
         "lambdasoup",
-        "semver"
+        "semver",
+        "cohttp",
+        "cohttp-lwt",
+        "cohttp-lwt-unix"
       ],
       "name": "fnm.lib",
       "namespace": "Fnm"
@@ -51,7 +55,6 @@
         "core",
         "cmdliner",
         "lwt",
-        "lwt.unix",
         "lambdasoup",
         "console.lib",
         "pastel.lib",
@@ -79,6 +82,11 @@
     "@opam/lwt": "*",
     "@opam/lwt_ppx": "*",
     "@opam/ppx_let": "*",
+    "@opam/cohttp": "*",
+    "@opam/cohttp-lwt": "*",
+    "@opam/cohttp-lwt-unix": "*",
+    "@opam/ssl": "*",
+    "@opam/lwt_ssl": "*",
     "@reason-native/console": "*",
     "@reason-native/pastel": "~0.2.0",
     "@reason-native/rely": "~1.2.0",