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-rw-r--r--doc/guix.texi7
-rw-r--r--guix/build/cargo-build-system.scm48
2 files changed, 50 insertions, 5 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index ccc36a8a97..cb60d5c7b7 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -5854,8 +5854,11 @@ should be added to the package definition via the
In its @code{configure} phase, this build system will make any source inputs
specified in the @code{#:cargo-inputs} and @code{#:cargo-development-inputs}
-parameters available to cargo. The @code{install} phase installs any crate
-the binaries if they are defined by the crate.
+parameters available to cargo. The @code{update-cargo-lock} phase will,
+when there is a @code{Cargo.lock} file, update the @code{Cargo.lock} file
+with the inputs and their versions available at build time. The
+@code{install} phase installs any crate the binaries if they are defined by
+the crate.
@end defvr
@cindex Clojure (programming language)
diff --git a/guix/build/cargo-build-system.scm b/guix/build/cargo-build-system.scm
index f38de16cf7..7d363a18a5 100644
--- a/guix/build/cargo-build-system.scm
+++ b/guix/build/cargo-build-system.scm
@@ -2,6 +2,7 @@
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Ivan Petkov <ivanppetkov@gmail.com>
+;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -39,6 +40,21 @@
;;
;; Code:
+;; TODO: Move this to (guix build cargo-utils). Will cause a full rebuild
+;; of all rust compilers.
+
+(define (generate-all-checksums dir-name)
+ (for-each
+ (lambda (filename)
+ (let* ((dir (dirname filename))
+ (checksum-file (string-append dir "/.cargo-checksum.json")))
+ (when (file-exists? checksum-file) (delete-file checksum-file))
+ (display (string-append
+ "patch-cargo-checksums: generate-checksums for "
+ dir "\n"))
+ (generate-checksums dir)))
+ (find-files dir-name "Cargo.toml$")))
+
(define (manifest-targets)
"Extract all targets from the Cargo.toml manifest"
(let* ((port (open-input-pipe "cargo read-manifest"))
@@ -94,8 +110,7 @@ Cargo.toml file present at its root."
;; so that we can generate any cargo checksums.
;; The --strip-components argument is needed to prevent creating
;; an extra directory within `crate-dir`.
- (invoke "tar" "xvf" path "-C" crate-dir "--strip-components" "1")
- (generate-checksums crate-dir)))))
+ (invoke "tar" "xvf" path "-C" crate-dir "--strip-components" "1")))))
inputs)
;; Configure cargo to actually use this new directory.
@@ -121,6 +136,31 @@ directory = '" port)
(setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
#t)
+;; The Cargo.lock file tells the build system which crates are required for
+;; building and hardcodes their version and checksum. In order to build with
+;; the inputs we provide, we need to recreate the file with our inputs.
+(define* (update-cargo-lock #:key
+ (vendor-dir "guix-vendor")
+ #:allow-other-keys)
+ "Regenerate the Cargo.lock file with the current build inputs."
+ (when (file-exists? "Cargo.lock")
+ (begin
+ ;; Unfortunately we can't generate a Cargo.lock file until the checksums
+ ;; are generated, so we have an extra round of generate-all-checksums here.
+ (generate-all-checksums vendor-dir)
+ (delete-file "Cargo.lock")
+ (invoke "cargo" "generate-lockfile")))
+ #t)
+
+;; After the 'patch-generated-file-shebangs phase any vendored crates who have
+;; their shebangs patched will have a mismatch on their checksum.
+(define* (patch-cargo-checksums #:key
+ (vendor-dir "guix-vendor")
+ #:allow-other-keys)
+ "Patch the checksums of the vendored crates after patching their shebangs."
+ (generate-all-checksums vendor-dir)
+ #t)
+
(define* (build #:key
skip-build?
(cargo-build-flags '("--release"))
@@ -162,7 +202,9 @@ directory = '" port)
(replace 'configure configure)
(replace 'build build)
(replace 'check check)
- (replace 'install install)))
+ (replace 'install install)
+ (add-after 'configure 'update-cargo-lock update-cargo-lock)
+ (add-after 'patch-generated-file-shebangs 'patch-cargo-checksums patch-cargo-checksums)))
(define* (cargo-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)