NEWS

---

mangoro 0.2.15

• Add go_binary_candidates() and strengthen Go discovery/validation (platform-specific search paths, go version validation, and minimum Go version check).
• Tinytest now checks Go candidates first and emits a short warning before skipping when Go is unavailable or unsuitable.
• find_go() now warns when it falls back to PATH or platform defaults instead of an explicit user-provided Go path.

mangoro 0.2.14

• Skips tests by default by checking environment variable "RUN_MANGORO_TINYTEST"

mangoro 0.2.13

• Added Go path overrides (options(mangoro.go_path) / MANGORO_GO) with clearer platform messaging; Go path checks now occur at runtime only.
• Add tinytest tests/tinytest.R

mangoro 0.2.12

• Fixed leftover temp directory detritus: Configure scripts now use a predictable temp directory path (${TMPDIR:-/tmp}/mangoro_go_home_$$) instead of mktemp -d to ensure proper cleanup and avoid leaving temporary files in the check directory.

mangoro 0.2.11

• Fixes ~/.config/go directory creation: All Go invocations (in configure scripts and R functions) now temporarily set HOME to a temporary directory to prevent Go's telemetry system from writing to ~/.config/go. This is necessary because Go 1.23+ writes telemetry data to os.UserConfigDir() even for simple commands like go version. Both configure and configure.win scripts, as well as mangoro_go_build(), get_mangos_version(), and get_arrow_go_version() functions are now isolated. All environment variables are restored and temporary directories cleaned up after completion. This resolves the CRAN policy violation that caused the previous archive.

mangoro 0.2.10

• Go build telemetry and ~/.config side effect: The package now controls Go telemetry during build (default: off) and avoids populating ~/.config/go/telemetry and other user config/cache directories during installation and tests, complying with CRAN policy.
• Added a telemetry parameter to mangoro_go_build() for explicit control of Go telemetry mode.
• Configure improvements: The configure script now creates a config.log file for diagnostics and logging, improving reliability and transparency. Installation failures due to missing Go are now logged, and the script avoids suppressing diagnostics.

mangoro 0.2.6 (2025-11-25)

• actually remove the generate_certs.R script from the package build

mangoro 0.2.5

CRAN Policy Compliance

• Replaced non-suppressible console output (print()/cat()) with message() where appropriate (notably mangoro_go_build()), so information.
• Updated tools/generate_certs.R to avoid writing into the package or user home by default: when no explicit --dir is provided it writes into a temporary directory and reports the chosen path via message(); the script still accepts an explicit --dir for persistent output.
• Added inst/AUTHORS and inst/COPYRIGHTS so vendored components and their license files are easy to find; full license/NOTICE/AUTHORS files remain in the vendor directories.
• Added LICENSE.note summarizing the license types present in vendored code.
• Added Copyright: See inst/AUTHORS to DESCRIPTION to make copyright ownership explicit as requested by CRAN.

mangoro 0.2.4

DESCRIPTION File Updates

• Added single quotes around all software names in Title and Description fields ('R', 'Go', 'IPC', 'Nanomsg', 'nanonext', 'nanoarrow') to comply with CRAN requirements

mangoro 0.2.3

CRAN Policy Compliance

• mangoro_go_build() now sets GOCACHE to a temporary directory by default to prevent populating ~/.cache/go-build during package checks, complying with CRAN policy
• Added gocache parameter to mangoro_go_build() for users who want to specify a custom cache location or use the default Go cache (gocache = NA)
• Maintains backward compatibility while ensuring CRAN compliance

mangoro 0.2.2

CRAN Packaging Improvements

• Fixed long path warnings by relocating flatbuf files during build process
• Flatbuf files now stored in tools/flatbuf/ and restored during package installation via configure script
• Configure scripts updated to be POSIX-compliant (replaced bashisms with standard sh syntax)
• Moved processx from Imports to Suggests (only used in tests)
• Package now passes R CMD check --as-cran with no warnings

Internal Changes

• Updated tools/vendorMangos.sh to move flatbuf files to tools directory after vendoring
• Enhanced configure/configure.win scripts to restore flatbuf files during installation
• Excluded inst/go/vendor/.../flatbuf directory from package tarball via .Rbuildignore

mangoro 0.2.1

RPC Interface

• New rgoipc Go package for type-safe function registration with Arrow schema validation
• RPC protocol wrapping Arrow IPC data with function call envelope
• RPC helper functions: mangoro_rpc_get_manifest(), mangoro_rpc_call(), mangoro_rpc_send(), mangoro_rpc_recv(), mangoro_rpc_parse_response()
• RPC example server demonstrating function registration (add, echoString functions)
• HTTP file server with RPC control interface (start/stop/status commands)
• Helper functions for HTTP server control: mangoro_http_start(), mangoro_http_stop(), mangoro_http_status()

Examples

• Complete RPC function registration and calling example in README
• HTTP server RPC control demonstration with server output capture
• Arrow IPC-based RPC communication examples

mangoro 0.2.0

Initial Release

• R/Go IPC using Nanomsg Next Gen (mangos v3, nanonext)
• Vendored Go dependencies for reproducible builds
• Helper functions to build and run Go binaries from R
• Example echo server and on-the-fly Go compilation from R
• Platform-correct IPC path helpers
• Designed for extensibility and cross-platform use
• We do not cgo's c-shared mode to avoid loading multiple Go runtimes in the same R session

Arrow Go IPC Support

• Add Arrow Go IPC roundtrip example and support: send and receive Arrow IPC streams between R and Go using nanoarrow and arrow-go.
• New function: get_arrow_go_version() to report the vendored Arrow Go version.