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authorBrett Gilio <brettg@gnu.org>2020-12-05 21:10:59 -0600
committerBrett Gilio <brettg@gnu.org>2020-12-05 21:10:59 -0600
commit937bc5841429f40a64e6b25d5d4c2fe3276789f1 (patch)
tree13633be30797d09ec92a9fdc842d7f453d17febf /gnu/packages
parent635fefa0493af3f1e61f0780883ee0c2bd4c74cc (diff)
gnu: Add libexpected.
* gnu/packages/cpp.scm (libexpected): New variable. * gnu/packages/patches/libexpected-nofetch.patch: Add patch. * gnu/local.mk: Reference patch.
Diffstat (limited to 'gnu/packages')
-rw-r--r--gnu/packages/cpp.scm38
-rw-r--r--gnu/packages/patches/libexpected-nofetch.patch27
2 files changed, 65 insertions, 0 deletions
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index f0d8cd2a40..2591d339d6 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -731,3 +731,41 @@ of C++14 components that complements @code{std} and Boost.")
;; 32-bit is not supported: https://github.com/facebook/folly/issues/103
(supported-systems '("aarch64-linux" "x86_64-linux"))
(license license:asl2.0)))
+
+(define-public libexpected
+ (package
+ (name "libexpected")
+ (version "1.0.0")
+ (source
+ (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url "https://github.com/TartanLlama/expected")
+ (commit (string-append "v" version))
+ ;; NOTE: Requires TL_CMAKE from custom
+ ;; repository. Should not affect reproducibility.
+ (recursive? #t)))
+ (file-name (git-file-name name version))
+ ;; NOTE: This patch will be unnecessary on subsequent tags.
+ (patches (search-patches "libexpected-nofetch.patch"))
+ (sha256
+ (base32 "1ckzfrljzzdw9wf8hvdfjz4wjx5na57iwxc48mbv9rf5067m21a5"))))
+ (build-system cmake-build-system)
+ ;; TODO: Clean up install phase.
+ (arguments
+ `(#:phases
+ (modify-phases %standard-phases
+ (replace 'check
+ (lambda _
+ (invoke "./tests"))))))
+ (native-inputs
+ `(("catch2" ,catch-framework2)))
+ (synopsis "C++11/14/17 std::expected with functional-style extensions")
+ (description "@code{std::expected} is proposed as the preferred way to
+represent objects which will either have an expected value, or an unexpected
+value giving information about why something failed. Unfortunately, chaining
+together many computations which may fail can be verbose, as error-checking
+code will be mixed in with the actual programming logic. This implementation
+provides a number of utilities to make coding with expected cleaner.")
+ (home-page "https://tl.tartanllama.xyz/")
+ (license license:cc0)))
diff --git a/gnu/packages/patches/libexpected-nofetch.patch b/gnu/packages/patches/libexpected-nofetch.patch
new file mode 100644
index 0000000000..e1d104f6f4
--- /dev/null
+++ b/gnu/packages/patches/libexpected-nofetch.patch
@@ -0,0 +1,27 @@
+Description: Disable FetchContent module
+ No online operations are permitted during build package.
+Author: Nicholas Guriev <guriev-ns@ya.ru>
+Last-Update: Wed, 22 Jan 2020 21:51:33 +0300
+
+Modified by Brett Gilio <brettg@gnu.org> on Dec 5, 2020
+
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -4,16 +4,7 @@ project(tl-expected VERSION 1.0.0 LANGUAGES CXX)
+
+ option(EXPECTED_ENABLE_TESTS "Enable tests." ON)
+
+-include(FetchContent)
+-FetchContent_Declare(
+- tl_cmake
+- GIT_REPOSITORY https://github.com/TartanLlama/tl-cmake.git
+-)
+-FetchContent_GetProperties(tl_cmake)
+-if(NOT tl_cmake_POPULATED)
+- FetchContent_Populate(tl_cmake)
+- set(CMAKE_MODULE_PATH ${tl_cmake_SOURCE_DIR} ${CMAKE_MODULE_PATH})
+-endif()
++set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/tl-cmake ${CMAKE_MODULE_PATH})
+ include(add-tl)
+
+ tl_add_library(expected SOURCES