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import: Add hex.pm importer.

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hex.pm is a package repository for Erlang and Elixir.

* guix/scripts/import.scm (importers): Add "hexpm".
* guix/scripts/import/hexpm.scm, guix/import/hexpm.scm,
  guix/hexpm-download.scm: New files.
* guix/import/utils.scm (source-spec->object): Add "hexpm-fetch" to list of
  fetch methods.
* guix/upstream.scm (package-update/hexpm-fetch): New function.
  (%method-updates) Add it.
* Makefile.am: Add them.
This commit is contained in:
Hartmut Goebel 2022-03-04 19:32:32 +01:00
parent 97586ca1cb
commit 0d9f1f15cb
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8 changed files with 755 additions and 5 deletions
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2
Makefile.am
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@ -275,6 +275,7 @@ MODULES = \
guix/import/gnu.scm \
guix/import/go.scm \
guix/import/hackage.scm \
guix/import/hexpm.scm \
guix/import/json.scm \
guix/import/kde.scm \
guix/import/launchpad.scm \
@ -326,6 +327,7 @@ MODULES = \
guix/scripts/import/gnu.scm \
guix/scripts/import/go.scm \
guix/scripts/import/hackage.scm \
guix/scripts/import/hexpm.scm \
guix/scripts/import/json.scm \
guix/scripts/import/minetest.scm \
guix/scripts/import/opam.scm \

29
doc/guix.texi
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@ -48,7 +48,7 @@ Copyright @copyright{} 2017 Thomas Danckaert@*
Copyright @copyright{} 2017 humanitiesNerd@*
Copyright @copyright{} 2017, 2021 Christine Lemmer-Webber@*
Copyright @copyright{} 2017, 2018, 2019, 2020, 2021, 2022 Marius Bakke@*
Copyright @copyright{} 2017, 2019, 2020 Hartmut Goebel@*
Copyright @copyright{} 2017, 2019, 2020, 2022 Hartmut Goebel@*
Copyright @copyright{} 2017, 2019, 2020, 2021 Maxim Cournoyer@*
Copyright @copyright{} 2017–2022 Tobias Geerinckx-Rice@*
Copyright @copyright{} 2017 George Clemmer@*
@ -13453,6 +13453,33 @@ guix import egg arrays@@1.0
@end example
Additional options include:
@table @code
@item --recursive
@itemx -r
Traverse the dependency graph of the given upstream package recursively
and generate package expressions for all those packages that are not yet
in Guix.
@end table
@item hexpm
@cindex hexpm
Import metadata from the hex.pm Erlang and Elixir package repository
@uref{https://hex.pm, hex.pm}, as in this example:
@example
guix import hexpm stun
@end example
The importer tries to determine the build system used by the package.
The hexpm importer also allows you to specify a version string:
@example
guix import hexpm cf@@0.3.0
@end example
Additional options include:
@table @code
@item --recursive
@itemx -r

21
guix/build-system/rebar.scm
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@ -26,20 +26,35 @@
#:use-module (guix search-paths)
#:use-module (guix build-system)
#:use-module (guix build-system gnu)
#:use-module ((guix hexpm-download) #:select (hexpm-uri) #:prefix dl:)
#:use-module (ice-9 match)
#:use-module (srfi srfi-26)
#:export (hexpm-uri
hexpm-package-url
%rebar-build-system-modules
rebar-build
rebar-build-system))
;;;
;;; Definitions for the hex.pm repository,
;;;
;; URL and paths from
;; https://github.com/hexpm/specifications/blob/master/endpoints.md
(define %hexpm-repo-url
(make-parameter "https://repo.hex.pm"))
(define hexpm-package-url
(string-append (%hexpm-repo-url) "/tarballs/"))
(define (hexpm-uri name version)
"Return a URI string for the package hosted at hex.pm corresponding to NAME
and VERSION."
(string-append hexpm-package-url name "-" version ".tar"))
;;
;; Standard build procedure for Erlang packages using Rebar.
;;
(define hexpm-uri dl:hexpm-uri)
(define %rebar-build-system-modules
;; Build-side modules imported by default.
`((guix build rebar-build-system)

347
guix/import/hexpm.scm Normal file
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@ -0,0 +1,347 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Cyril Roelandt <tipecaml@gmail.com>
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2017, 2019-2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2019 Martin Becze <mjbecze@riseup.net>
;;; Copyright © 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2020-2022 Hartmut Goebel <h.goebel@crazy-compilers.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix import hexpm)
#:use-module (guix base32)
#:use-module ((guix download) #:prefix download:)
#:use-module (gcrypt hash)
#:use-module (guix http-client)
#:use-module (json)
#:use-module (guix import utils)
#:use-module ((guix import json) #:select (json-fetch))
#:use-module ((guix build utils)
#:select ((package-name->name+version
. hyphen-package-name->name+version)
dump-port))
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix utils)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (ice-9 popen)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-2)
#:use-module (srfi srfi-26)
#:use-module (guix build-system rebar)
#:export (hexpm->guix-package
guix-package->hexpm-name
strings->licenses ;; why used here?
hexpm-recursive-import
%hexpm-updater))
;;;
;;; Interface to https://hex.pm/api, version 2.
;;; REST-API end-points:
;;; https://github.com/hexpm/specifications/blob/master/apiary.apib
;;; Repository end-points:
;;; https://github.com/hexpm/specifications/blob/master/endpoints.md
;;;
(define %hexpm-api-url
(make-parameter "https://hex.pm/api"))
(define (package-url name)
(string-append (%hexpm-api-url) "/packages/" name))
;;
;; Hexpm Package. /packages/${name}
;; https://github.com/hexpm/specifications/blob/master/apiary.apib#Package
;;
;; Each package can have several "releases", each of which has its own set of
;; requirements, build-tool, etc. - see <hexpm-release> below.
(define-json-mapping <hexpm-pkgdef> make-hexpm-pkgdef hexpm-pkgdef?
json->hexpm
(name hexpm-name) ; string
(html-url hexpm-html-url "html_url") ; string
(docs-html-url hexpm-docs-html-url "docs_html_url") ; string | 'null
(meta hexpm-meta "meta" json->hexpm-meta)
(versions hexpm-versions "releases" ; list of <hexpm-version>
(lambda (vector)
(map json->hexpm-version
(vector->list vector))))
;; "latest_version" and "latest_stable_version" are not named in the
;; specification, butt seen in practice.
(latest-version hexpm-latest-version "latest_version") ; string
(latest-stable hexpm-latest-stable "latest_stable_version")) ; string
;; Hexpm package metadata.
(define-json-mapping <hexpm-meta> make-hexpm-meta hexpm-meta?
json->hexpm-meta
(description hexpm-meta-description) ;string
(licenses hexpm-meta-licenses "licenses" ;list of strings
(lambda (vector)
(or (and vector (vector->list vector))
#f))))
;; Hexpm package versions.
(define-json-mapping <hexpm-version> make-hexpm-version hexpm-version?
json->hexpm-version
(number hexpm-version-number "version") ;string
(url hexpm-version-url)) ;string
(define (lookup-hexpm name)
"Look up NAME on hex.pm and return the corresopnding <hexpm> record
or #f if it was not found."
(and=> (json-fetch (package-url name))
json->hexpm))
;;
;; Hexpm release. /packages/${name}/releases/${version}
;; https://github.com/hexpm/specifications/blob/master/apiary.apib#Release
;;
(define-json-mapping <hexpm-release> make-hexpm-release hexpm-release?
json->hexpm-release
(version hexpm-release-version) ; string
(url hexpm-release-url) ; string
(meta hexpm-release-meta "meta" json->hexpm-release-meta)
;; Specification names the next fields "dependencies", but in practice it is
;; "requirements".
(dependencies hexpm-requirements "requirements")) ; list of <hexpm-dependency>
;; Hexpm release meta.
;; https://github.com/hexpm/specifications/blob/main/package_metadata.md
(define-json-mapping <hexpm-release-meta>
make-hexpm-release-meta hexpm-release-meta?
json->hexpm-release-meta
(app hexpm-release-meta-app) ; string
(elixir hexpm-release-meta-elixir) ; string
(build-tools hexpm-release-meta-build-tools "build_tools" ; list of strings
(lambda (vector)
(or (and vector (vector->list vector))
(list)))))
;; Hexpm dependency. Each requirement has information about the required
;; version, such as "~> 2.1.2" or ">= 2.1.2 and < 2.2.0", see
;; <https://hexdocs.pm/elixir/Version.html#module-requirements>, and whether
;; the dependency is optional.
(define-json-mapping <hexpm-dependency> make-hexpm-dependency
hexpm-dependency?
json->hexpm-dependency
(name hexpm-dependency-name "app") ; string
(requirement hexpm-dependency-requirement) ; string
(optional hexpm-dependency-optional)) ; bool
(define (hexpm-release-dependencies release)
"Return the list of dependency names of RELEASE, a <hexpm-release>."
(let ((reqs (or (hexpm-requirements release) '#())))
(map first reqs))) ;; TODO: also return required version
(define (lookup-hexpm-release version*)
"Look up RELEASE on hexpm-version-url and return the corresopnding
<hexpm-release> record or #f if it was not found."
(and=> (json-fetch (hexpm-version-url version*))
json->hexpm-release))
;;;
;;; Converting hex.pm packages to Guix packages.
;;;
(define (maybe-inputs package-inputs input-type)
"Given a list of PACKAGE-INPUTS, tries to generate the 'inputs' field of a
package definition. INPUT-TYPE, a symbol, is used to populate the name of
the input field."
(match package-inputs
(()
'())
((package-inputs ...)
`((,input-type (list ,@package-inputs))))))
(define (dependencies->package-names names)
"Given a list of hexpm package NAMES, returns a list of guix package names
as symbols."
;; TODO: Base name on language of dependency.
;; The language used for implementing the dependency is not know without
;; recursing the dependencies. So for now assume more packages are based on
;; Erlang and prefix all dependencies with "erlang-" (the default).
(map string->symbol
(map hexpm-name->package-name
(sort names string-ci<?))))
(define* (make-hexpm-sexp #:key name version tarball-url
home-page synopsis description license
language build-system dependencies
#:allow-other-keys)
"Return the `package' s-expression for a hexpm package with the given NAME,
VERSION, TARBALL-URL, HOME-PAGE, SYNOPSIS, DESCRIPTION, and LICENSE. The
created package's name will stem from LANGUAGE. BUILD-SYSTEM defined the
build-system, and DEPENDENCIES the inputs for the package."
(call-with-temporary-output-file
(lambda (temp port)
(and (url-fetch tarball-url temp)
(values
`(package
(name ,(hexpm-name->package-name name language))
(version ,version)
(source (origin
(method url-fetch)
(uri (hexpm-uri ,name version))
(sha256 (base32 ,(guix-hash-url temp)))))
(build-system ,build-system)
,@(maybe-inputs (dependencies->package-names dependencies) 'inputs)
(synopsis ,synopsis)
(description ,(beautify-description description))
(home-page ,(match home-page
(() "")
(_ home-page)))
(license ,(match license
(() #f)
((license) license)
(_ `(list ,@license))))))))))
(define (strings->licenses strings)
"Convert the list of STRINGS into a list of license objects."
(filter-map (lambda (license)
(and (not (string-null? license))
(not (any (lambda (elem) (string=? elem license))
'("AND" "OR" "WITH")))
(or (spdx-string->license license)
license)))
strings))
(define (hexpm-latest-release package)
"Return the version string for the latest stable release of PACKAGE."
;; Use latest-stable if specified (see comment in hexpm-pkgdef above),
;; otherwise compare the lists of release versions.
(let ((latest-stable (hexpm-latest-stable package)))
(if (not (unspecified? latest-stable))
latest-stable
(let ((versions (map hexpm-version-number (hexpm-versions package))))
(fold (lambda (a b)
(if (version>? a b) a b)) (car versions) versions)))))
(define* (hexpm->guix-package package-name #:key repo version)
"Fetch the metadata for PACKAGE-NAME from hexpms.io, and return the
`package' s-expression corresponding to that package, or #f on failure.
When VERSION is specified, attempt to fetch that version; otherwise fetch the
latest version of PACKAGE-NAME."
(define package
(lookup-hexpm package-name))
(define version-number
(and package
(or version
(hexpm-latest-release package))))
(define version*
(and package
(find (lambda (version)
(string=? (hexpm-version-number version)
version-number))
(hexpm-versions package))))
(define release
(and package version*
(lookup-hexpm-release version*)))
(define release-meta
(and package version*
(hexpm-release-meta release)))
(define build-system
(and package version*
(let ((build-tools (hexpm-release-meta-build-tools release-meta)))
(cond
((member "rebar3" build-tools) 'rebar-build-system)
((member "mix" build-tools) 'mix-build-system)
((member "make" build-tools) 'gnu-build-system)
(else #f)))))
(define language
(and package version*
(let ((elixir (hexpm-release-meta-elixir release-meta)))
(cond
((and (string? elixir) (not (string-null? elixir))) "elixir")
(else "erlang")))))
(and package version*
(let ((dependencies (hexpm-release-dependencies release))
(pkg-meta (hexpm-meta package))
(docs-html-url (hexpm-docs-html-url package)))
(values
(make-hexpm-sexp
#:language language
#:build-system build-system
#:name package-name
#:version version-number
#:dependencies dependencies
#:home-page (or (and (not (eq? docs-html-url 'null))
docs-html-url)
;; TODO: Homepage?
(hexpm-html-url package))
#:synopsis (hexpm-meta-description pkg-meta)
#:description (hexpm-meta-description pkg-meta)
#:license (or (and=> (hexpm-meta-licenses pkg-meta)
strings->licenses))
#:tarball-url (hexpm-uri package-name version-number))
dependencies))))
(define* (hexpm-recursive-import pkg-name #:optional version)
(recursive-import pkg-name
#:version version
#:repo->guix-package hexpm->guix-package
#:guix-name hexpm-name->package-name))
(define (guix-package->hexpm-name package)
"Return the hex.pm name of PACKAGE."
(define (url->hexpm-name url)
(hyphen-package-name->name+version
(basename (file-sans-extension url))))
(match (and=> (package-source package) origin-uri)
((? string? url)
(url->hexpm-name url))
((lst ...)
(any url->hexpm-name lst))
(#f #f)))
(define* (hexpm-name->package-name name #:optional (language "erlang"))
(string-append language "-" (string-join (string-split name #\_) "-")))
;;;
;;; Updater
;;;
(define (latest-release package)
"Return an <upstream-source> for the latest release of PACKAGE."
(let* ((hexpm-name (guix-package->hexpm-name package))
(hexpm (lookup-hexpm hexpm-name))
(version (hexpm-latest-release hexpm))
(url (hexpm-uri hexpm-name version)))
(upstream-source
(package (package-name package))
(version version)
(urls (list url)))))
(define %hexpm-updater
(upstream-updater
(name 'hexpm)
(description "Updater for hex.pm packages")
(pred (url-prefix-predicate hexpm-package-url))
(latest latest-release)))

2
guix/scripts/import.scm
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@ -50,7 +50,7 @@
(define importers '("gnu" "pypi" "cpan" "hackage" "stackage" "egg" "elpa"
"gem" "go" "cran" "crate" "texlive" "json" "opam"
"minetest" "elm"))
"minetest" "elm" "hexpm"))
(define (resolve-importer name)
(let ((module (resolve-interface

105
guix/scripts/import/hexpm.scm Normal file
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@ -0,0 +1,105 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2020, 2022 Hartmut Goebel <h.goebel@crazy-compilers.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix scripts import hexpm)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module (guix scripts)
#:use-module (guix import hexpm)
#:use-module (guix scripts import)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-37)
#:use-module (srfi srfi-71)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
#:export (guix-import-hexpm))
;;;
;;; Command-line options.
;;;
(define %default-options
'())
(define (show-help)
(display (G_ "Usage: guix import hexpm PACKAGE-NAME
Import and convert the hex.pm package for PACKAGE-NAME.\n"))
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(display (G_ "
-r, --recursive import packages recursively"))
(newline)
(show-bug-report-information))
(define %options
;; Specification of the command-line options.
(cons* (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix import hexpm")))
(option '(#\r "recursive") #f #f
(lambda (opt name arg result)
(alist-cons 'recursive #t result)))
%standard-import-options))
;;;
;;; Entry point.
;;;
(define (guix-import-hexpm . args)
(define (parse-options)
;; Return the alist of option values.
(parse-command-line args %options (list %default-options)
#:build-options? #f))
(let* ((opts (parse-options))
(args (filter-map (match-lambda
(('argument . value)
value)
(_ #f))
(reverse opts))))
(match args
((spec)
(with-error-handling
(let ((name version (package-name->name+version spec)))
(if (assoc-ref opts 'recursive)
;; Recursive import
(map (match-lambda
((and ('package ('name name) . rest) pkg)
`(define-public ,(string->symbol name)
,pkg))
(_ #f))
(hexpm-recursive-import name version))
;; Single import
(let ((sexp (hexpm->guix-package name #:version version)))
(unless sexp
(leave (G_ "failed to download meta-data for package '~a'~%")
spec))
sexp)))))
(()
(leave (G_ "too few arguments~%")))
((many ...)
(leave (G_ "too many arguments~%"))))))

1
guix/upstream.scm
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@ -464,6 +464,7 @@ SOURCE, an <upstream-source>."
#:key-download key-download)))
(values version tarball source))))))
(define* (package-update/git-fetch store package source #:key key-download)
"Return the version, checkout, and SOURCE, to update PACKAGE to
SOURCE, an <upstream-source>."

253
tests/hexpm.scm Normal file
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@ -0,0 +1,253 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Hartmut Goebel <h.goebel@crazy-compilers.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-hexpm)
#:use-module (guix import hexpm)
#:use-module (guix base32)
#:use-module (gcrypt hash)
#:use-module (guix tests)
#:use-module (srfi srfi-64)
#:use-module (ice-9 binary-ports)
#:use-module (ice-9 match))
(define test-bla-package
"{\"name\": \"bla\",
\"html_url\": \"https://hex.pm/packages/bla\",
\"docs_html_url\": null,
\"meta\": {
\"description\": \"A cool package\",
\"licenses\": [\"MIT\", \"Apache-2.0\"]
},
\"releases\": [
{\"url\": \"https://hex.pm/api/packages/bla/releases/1.5.0\",
\"version\": \"1.5.0\"},
{\"url\": \"https://hex.pm/api/packages/bla/releases/1.4.7\",
\"version\": \"1.4.7\"}
]
}")
(define test-bla-release
"{
\"version\": \"1.5.0\",
\"url\": \"https://hex.pm/api/packages/bla/releases/1.5.0\",
\"requirements\": {
\"blubb\":{\"app\": \"blubb\",
\"optional\": false,
\"requirement\": \"~>0.3\"
},
\"fasel\":{\"app\": \"fasel\",
\"optional\": false,
\"requirement\": \"~>1.0\"
}
},
\"meta\":{ \"build_tools\":[\"mix\", \"make\", \"rebar3\"] }
}")
(define test-blubb-package
"{\"name\": \"blubb\",
\"latest_stable_version\": \"0.3.1\",
\"latest_version\": \"0.3.1\",
\"html_url\": \"https://hex.pm/packages/blubb\",
\"docs_html_url\": null,
\"meta\": {
\"description\": \"Another cool package\",
\"licenses\": [\"MIT\"]
},
\"releases\": [
{\"url\": \"https://hex.pm/api/packages/blubb/releases/0.3.1\",
\"version\": \"0.3.1\"},
{\"url\": \"https://hex.pm/api/packages/blubb/releases/0.3.0\",
\"version\": \"0.3.0\"}
]
}")
(define test-blubb-release
"{
\"version\": \"0.3.1\",
\"url\": \"https://hex.pm/api/packages/blubb/releases/0.3.1\",
\"requirements\": {
\"fasel\":{\"app\": \"fasel\",
\"optional\": false,
\"requirement\": \"~>1.0\"
}
},
\"meta\": { \"build_tools\":[\"mix\"] }
}")
(define test-fasel-package
"{\"name\": \"fasel\",
\"latest_stable_version\": \"1.2.1\",
\"latest_version\": \"1.2.1\",
\"html_url\": \"https://hex.pm/packages/fasel\",
\"docs_html_url\": null,
\"meta\": {
\"description\": \"Yet another cool package\",
\"licenses\": [\"GPL\"]
},
\"releases\": [
{\"url\": \"https://hex.pm/api/packages/fasel/releases/1.2.1\",
\"version\": \"1.2.1\"}
]
}")
(define test-fasel-release
"{
\"version\": \"1.2.1\",
\"url\": \"https://hex.pm/api/packages/fasel/releases/1.2.1\",
\"requirements\" :{},
\"meta\":{ \"build_tools\":[\"make\"] }
}")
(test-begin "hexpm")
(test-assert "hexpm->guix-package"
;; Replace network resources with sample data.
(mock ((guix http-client) http-fetch
(lambda (url . rest)
(match url
("https://hex.pm/api/packages/bla"
(values (open-input-string test-bla-package)
(string-length test-bla-package)))
("https://hex.pm/api/packages/bla/releases/1.5.0"
(values (open-input-string test-bla-release)
(string-length test-bla-release)))
(_ (error "http-fetch got unexpected URL: " url)))))
(mock ((guix build download) url-fetch
(lambda* (url file-name
#:key
(mirrors '()) verify-certificate?)
(with-output-to-file file-name
(lambda ()
(display
(match url
("https://repo.hex.pm/tarballs/bla-1.5.0.tar"
"source")
(_ (error "url-fetch got unexpected URL: " url))))))))
(match (hexpm->guix-package "bla")
(('package
('name "erlang-bla")
('version "1.5.0")
('source
('origin
('method 'url-fetch)
('uri ('hexpm-uri "bla" 'version))
('sha256
('base32
"0zcl4dgcmqwl1g5xb901pd6dz61r1xgmac9mqlwvh022paa6gks1"))))
('build-system 'rebar-build-system)
('inputs ('list 'erlang-blubb 'erlang-fasel))
('synopsis "A cool package")
('description "This package provides a cool package")
('home-page "https://hex.pm/packages/bla")
('license ('list 'license:expat 'license:asl2.0)))
#t)
(x
(pk 'fail x #f))))))
(test-assert "hexpm-recursive-import"
;; Replace network resources with sample data.
(mock ((guix http-client) http-fetch
(lambda (url . rest)
(match url
("https://hex.pm/api/packages/bla"
(values (open-input-string test-bla-package)
(string-length test-bla-package)))
("https://hex.pm/api/packages/bla/releases/1.5.0"
(values (open-input-string test-bla-release)
(string-length test-bla-release)))
("https://hex.pm/api/packages/blubb"
(values (open-input-string test-blubb-package)
(string-length test-blubb-package)))
("https://hex.pm/api/packages/blubb/releases/0.3.1"
(values (open-input-string test-blubb-release)
(string-length test-blubb-release)))
("https://hex.pm/api/packages/fasel"
(values (open-input-string test-fasel-package)
(string-length test-fasel-package)))
("https://hex.pm/api/packages/fasel/releases/1.2.1"
(values (open-input-string test-fasel-release)
(string-length test-fasel-release)))
(_ (error "http-fetch got unexpected URL: " url)))))
(mock ((guix build download) url-fetch
(lambda* (url file-name
#:key
(mirrors '()) verify-certificate?)
(with-output-to-file file-name
(lambda ()
(display
(match url
("https://repo.hex.pm/tarballs/bla-1.5.0.tar"
"bla-source")
("https://repo.hex.pm/tarballs/blubb-0.3.1.tar"
"blubb-source")
("https://repo.hex.pm/tarballs/fasel-1.2.1.tar"
"fasel-source")
(_ (error "url-fetch got unexpected URL: " url))))))))
(match (hexpm-recursive-import "bla")
((('package
('name "erlang-blubb")
('version "0.3.1")
('source
('origin
('method 'url-fetch)
('uri ('hexpm-uri "blubb" 'version))
('sha256
('base32
"17y88b5y8ld7s1c2bcwwwa04pf1cl4402i9zk3inna221ps3ppj2"))))
('build-system 'mix-build-system)
('inputs ('list 'erlang-fasel))
('synopsis "Another cool package")
('description "Another cool package")
('home-page "https://hex.pm/packages/blubb")
('license 'license:expat))
('package
('name "erlang-fasel")
('version "1.2.1")
('source
('origin
('method 'url-fetch)
('uri ('hexpm-uri "fasel" 'version))
('sha256
('base32
"1k6d70mxwqgq78jrbr7yqnw187yki74jnagybi7nacrj4a67qjha"))))
('build-system 'gnu-build-system)
('synopsis "Yet another cool package")
('description "Yet another cool package")
('home-page "https://hex.pm/packages/fasel")
('license "GPL"))
('package
('name "erlang-bla")
('version "1.5.0")
('source
('origin
('method 'url-fetch)
('uri ('hexpm-uri "bla" 'version))
('sha256
('base32
"0d3gj746c4swbb1m6ycylxb239jsavvdcizag6bfbg2aqccxwij8"))))
('build-system 'rebar-build-system)
('inputs ('list 'erlang-blubb 'erlang-fasel))
('synopsis "A cool package")
('description "This package provides a cool package")
('home-page "https://hex.pm/packages/bla")
('license ('list 'license:expat 'license:asl2.0))))
#t)
(x
(pk 'fail x #f))))))
(test-end "hexpm")