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guix build: Transformation options match packages by spec.
This allows us to combine several transformations on a given package, in
particular '--with-git-url' and '--with-branch'.
Previously transformations would ignore each other since they would all
take (specification->package SOURCE) as their replacement source,
compare it by identity, which doesn't work if a previous transformation
has already changed SOURCE.
* guix/scripts/build.scm (evaluate-replacement-specs): Adjust to produce
an alist as expected by 'package-input-rewriting/spec', with a package
spec as the first element of each pair.
(evaluate-git-replacement-specs): Likewise.
(transform-package-inputs): Adjust accordingly and use
'package-input-rewriting/spec'.
(transform-package-inputs/graft): Likewise.
(transform-package-source-branch, transform-package-source-commit): Use
'package-input-rewriting/spec'.
(transform-package-source-git-url): Likewise, and adjust the
REPLACEMENTS alist accordingly.
(options->transformation): Iterate over OPTS instead of over
%TRANSFORMATIONS. Invoke transformations one by one.
* tests/scripts-build.scm ("options->transformation, with-input"):
Adjust test to compare packages by name rather than by identity.
("options->transformation, with-git-url + with-branch"): New test.
This commit is contained in:
Ludovic Courtès
Ludovic Courtès
parent
0c0ff42a24
commit
14328b81a2
3 changed files with 97 additions and 53 deletions
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@ -7807,16 +7807,20 @@ care!
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@cindex Git, using the latest commit
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@cindex latest commit, building
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Build @var{package} from the latest commit of the @code{master} branch of the
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Git repository at @var{url}.
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Git repository at @var{url}. Git sub-modules of the repository are fetched,
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recursively.
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For example, the following commands builds the GNU C Library (glibc) straight
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from its Git repository instead of building the currently-packaged release:
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For example, the following command builds the NumPy Python library against the
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latest commit of the master branch of Python itself:
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@example
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guix build glibc \
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--with-git-url=glibc=git://sourceware.org/git/glibc.git
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guix build python-numpy \
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--with-git-url=python=https://github.com/python/cpython
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@end example
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This option can also be combined with @code{--with-branch} or
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@code{--with-commit} (see below).
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@cindex continuous integration
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Obviously, since it uses the latest commit of the given branch, the result of
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such a command varies over time. Nevertheless it is a convenient way to
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@ -7829,11 +7833,11 @@ consecutive accesses to the same repository. You may want to clean it up once
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in a while to save disk space.
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@item --with-branch=@var{package}=@var{branch}
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Build @var{package} from the latest commit of @var{branch}. The @code{source}
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field of @var{package} must be an origin with the @code{git-fetch} method
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(@pxref{origin Reference}) or a @code{git-checkout} object; the repository URL
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is taken from that @code{source}. Git sub-modules of the repository are
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fetched, recursively.
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Build @var{package} from the latest commit of @var{branch}. If the
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@code{source} field of @var{package} is an origin with the @code{git-fetch}
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method (@pxref{origin Reference}) or a @code{git-checkout} object, the
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repository URL is taken from that @code{source}. Otherwise you have to use
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@code{--with-git-url} to specify the URL of the Git repository.
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For instance, the following command builds @code{guile-sqlite3} from the
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latest commit of its @code{master} branch, and then builds @code{guix} (which
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@ -226,18 +226,21 @@ (define new-sources
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obj)))))
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(define (evaluate-replacement-specs specs proc)
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"Parse SPECS, a list of strings like \"guile=guile@2.1\", and invoke PROC on
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each package pair specified by SPECS. Return the resulting list. Raise an
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error if an element of SPECS uses invalid syntax, or if a package it refers to
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could not be found."
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"Parse SPECS, a list of strings like \"guile=guile@2.1\" and return a list
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of package spec/procedure pairs as expected by 'package-input-rewriting/spec'.
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PROC is called with the package to be replaced and its replacement according
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to SPECS. Raise an error if an element of SPECS uses invalid syntax, or if a
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package it refers to could not be found."
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(define not-equal
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(char-set-complement (char-set #\=)))
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(map (lambda (spec)
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(match (string-tokenize spec not-equal)
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((old new)
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(proc (specification->package old)
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(specification->package new)))
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((spec new)
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(cons spec
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(let ((new (specification->package new)))
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(lambda (old)
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(proc old new)))))
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(x
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(leave (G_ "invalid replacement specification: ~s~%") spec))))
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specs))
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@ -248,8 +251,10 @@ (define (transform-package-inputs replacement-specs)
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strings like \"guile=guile@2.1\" meaning that, any dependency on a package
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called \"guile\" must be replaced with a dependency on a version 2.1 of
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\"guile\"."
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(let* ((replacements (evaluate-replacement-specs replacement-specs cons))
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(rewrite (package-input-rewriting replacements)))
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(let* ((replacements (evaluate-replacement-specs replacement-specs
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(lambda (old new)
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new)))
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(rewrite (package-input-rewriting/spec replacements)))
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(lambda (store obj)
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(if (package? obj)
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(rewrite obj)
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@ -260,13 +265,12 @@ (define (transform-package-inputs/graft replacement-specs)
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dependencies according to REPLACEMENT-SPECS. REPLACEMENT-SPECS is a list of
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strings like \"gnutls=gnutls@3.5.4\" meaning that packages are built using the
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current 'gnutls' package, after which version 3.5.4 is grafted onto them."
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(define (replacement-pair old new)
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(cons old
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(package (inherit old) (replacement new))))
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(define (set-replacement old new)
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(package (inherit old) (replacement new)))
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(let* ((replacements (evaluate-replacement-specs replacement-specs
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replacement-pair))
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(rewrite (package-input-rewriting replacements)))
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set-replacement))
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(rewrite (package-input-rewriting/spec replacements)))
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(lambda (store obj)
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(if (package? obj)
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(rewrite obj)
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@ -295,11 +299,13 @@ (define (evaluate-git-replacement-specs specs proc)
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syntax, or if a package it refers to could not be found."
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(map (lambda (spec)
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(match (string-tokenize spec %not-equal)
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((name branch-or-commit)
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(let* ((old (specification->package name))
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(source (package-source old))
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(url (package-git-url old)))
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(cons old (proc old url branch-or-commit))))
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((spec branch-or-commit)
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(define (replace old)
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(let* ((source (package-source old))
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(url (package-git-url old)))
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(proc old url branch-or-commit)))
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(cons spec replace))
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(x
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(leave (G_ "invalid replacement specification: ~s~%") spec))))
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specs))
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@ -318,7 +324,7 @@ (define (replace old url branch)
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(let* ((replacements (evaluate-git-replacement-specs replacement-specs
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replace))
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(rewrite (package-input-rewriting replacements)))
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(rewrite (package-input-rewriting/spec replacements)))
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(lambda (store obj)
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(if (package? obj)
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(rewrite obj)
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@ -340,7 +346,7 @@ (define (replace old url commit)
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(let* ((replacements (evaluate-git-replacement-specs replacement-specs
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replace))
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(rewrite (package-input-rewriting replacements)))
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(rewrite (package-input-rewriting/spec replacements)))
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(lambda (store obj)
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(if (package? obj)
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(rewrite obj)
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@ -351,22 +357,20 @@ (define (transform-package-source-git-url replacement-specs)
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according to REPLACEMENT-SPECS. REPLACEMENT-SPECS is a list of strings like
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\"guile-json=https://gitthing.com/…\" meaning that packages are built using
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a checkout of the Git repository at the given URL."
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;; FIXME: Currently this cannot be combined with '--with-branch' or
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;; '--with-commit' because they all transform "from scratch".
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(define replacements
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(map (lambda (spec)
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(match (string-tokenize spec %not-equal)
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((name url)
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(let* ((old (specification->package name))
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(new (package
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(inherit old)
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(source (git-checkout (url url)
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(recursive? #t))))))
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(cons old new)))))
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((spec url)
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(cons spec
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(lambda (old)
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(package
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(inherit old)
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(source (git-checkout (url url)
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(recursive? #t)))))))))
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replacement-specs))
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(define rewrite
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(package-input-rewriting replacements))
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(package-input-rewriting/spec replacements))
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(lambda (store obj)
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(if (package? obj)
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@ -430,16 +434,22 @@ (define (options->transformation opts)
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"Return a procedure that, when passed an object to build (package,
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derivation, etc.), applies the transformations specified by OPTS."
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(define applicable
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;; List of applicable transformations as symbol/procedure pairs.
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;; List of applicable transformations as symbol/procedure pairs in the
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;; order in which they appear on the command line.
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(filter-map (match-lambda
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((key . transform)
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(match (filter-map (match-lambda
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((k . arg)
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(and (eq? k key) arg)))
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opts)
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(() #f)
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(args (cons key (transform args))))))
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%transformations))
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((key . value)
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(match (any (match-lambda
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((k . proc)
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(and (eq? k key) proc)))
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%transformations)
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(#f
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#f)
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(transform
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;; XXX: We used to pass TRANSFORM a list of several
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;; arguments, but we now pass only one, assuming that
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;; transform composes well.
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(cons key (transform (list value)))))))
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(reverse opts)))
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(lambda (store obj)
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(fold (match-lambda*
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@ -139,12 +139,15 @@ (define-module (test-scripts-build)
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(and (not (eq? new p))
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(match (package-inputs new)
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((("foo" dep1) ("bar" dep2) ("baz" dep3))
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(and (eq? dep1 busybox)
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(eq? dep2 findutils)
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(and (string=? (package-full-name dep1)
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(package-full-name busybox))
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(string=? (package-full-name dep2)
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(package-full-name findutils))
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(string=? (package-name dep3) "chbouib")
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(match (package-native-inputs dep3)
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((("x" dep))
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(eq? dep findutils)))))))))))
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(string=? (package-full-name dep)
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(package-full-name findutils))))))))))))
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(test-assert "options->transformation, with-graft"
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(let* ((p (dummy-package "guix.scm"
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@ -186,4 +189,31 @@ (define-module (test-scripts-build)
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((("x" dep3))
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(map package-source (list dep1 dep3))))))))))))
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(test-equal "options->transformation, with-git-url + with-branch"
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;; Combine the two options and make sure the 'with-branch' transformation
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;; comes after the 'with-git-url' transformation.
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(let ((source (git-checkout (url "https://example.org")
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(branch "BRANCH")
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(recursive? #t))))
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(list source source))
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(let* ((p (dummy-package "guix.scm"
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(inputs `(("foo" ,grep)
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("bar" ,(dummy-package "chbouib"
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(native-inputs `(("x" ,grep)))))))))
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(t (options->transformation
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(reverse '((with-git-url
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. "grep=https://example.org")
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(with-branch . "grep=BRANCH"))))))
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(with-store store
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(let ((new (t store p)))
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(and (not (eq? new p))
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(match (package-inputs new)
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((("foo" dep1) ("bar" dep2))
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(and (string=? (package-name dep1) "grep")
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(string=? (package-name dep2) "chbouib")
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(match (package-native-inputs dep2)
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((("x" dep3))
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(map package-source (list dep1 dep3))))))))))))
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(test-end)
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