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(define-module (pypi dependency-solver)
#:use-module (ice-9 match)
#:use-module (ice-9 receive)
#:use-module (ice-9 hash-table)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (logging logger)
#:use-module (pyguile)
#:use-module (pypi requirement)
#:use-module (pypi sdist)
#:use-module (pypi sdist-store)
#:use-module (pypi build-configuration-graph)
#:use-module (pypi package)
#:export (generate-solver-hash-tables
solve-build-configuration-graph
get-scoped-releases-to-versions
release
release?
release-name
release-version
root-scope
scope
scope?
scope-release
scope-parent
scoped-release
scoped-release?
scoped-release-release
scoped-release-scope
scoped-requirement
scoped-requirement?
scopred-requirement-requirement
scopred-requirement-scope))
(define root-scope '())
(define-record-type <release>
(release name version)
release?
(name release-name)
(version release-version))
(define (release->string r)
(string-join
(list
(normalise-requirement-name (release-name r))
"@"
(release-version r))
""))
(define-record-type <scope>
(scope release parent)
scope?
(release scope-release)
(parent scope-parent))
(define (scope->string s)
(if (null? s)
""
(string-join
(list
"("
(release->string (scope-release s))
(if (null? (scope-parent s))
""
(string-join
(list
" -> "
(scope->string
(scope-parent s)))
""))
")")
"")))
(define (scope-tree-contains-release? r s)
(if (null? s)
#f
(or
(equal?
(scope-release s)
r)
(scope-tree-contains-release?
r
(scope-parent s)))))
(define-record-type <scoped-release>
(scoped-release release scope)
scoped-release?
(release scoped-release-release)
(scope scoped-release-scope))
(define-record-type <scoped-build-configuration>
(scoped-release release scope)
scoped-release?
(release scoped-release-release)
(scope scoped-release-scope))
(define (scoped-release->string sr)
(string-join
(list
(release->string
(scoped-release-release sr))
(if (null? (scoped-release-scope sr))
""
(string-join
(list
" "
(scope->string
(scoped-release-scope sr)))
"")))
""))
(define-record-type <scoped-requirement>
(scoped-requirement requirement scope)
scoped-requirement?
(requirement scoped-requirement-requirement)
(scope scoped-requirement-scope))
(define (scoped-requirement->solver-package-name sr)
(string-append
(normalise-requirement-name
(requirement-name
(scoped-requirement-requirement sr)))
(if (null? (scoped-requirement-scope sr))
""
(string-append
" "
(scope->string
(scoped-requirement-scope sr))))))
(define (scoped-release->solver-package-name sr)
(string-append
(normalise-requirement-name
(release-name (scoped-release-release sr)))
(if (null? (scoped-release-scope sr))
""
(string-append
" "
(scope->string
(scoped-release-scope sr))))))
(define (scoped-build-configuration->solver-name sr)
(string-append
(normalise-requirement-name
(release-name (scoped-release-release sr)))
(if (null? (scoped-release-scope sr))
""
(string-append
" "
(scope->string
(scoped-release-scope sr))))))
(define (scoped-requirement->solver-output-string sr)
(string-append
(normalise-requirement-name
(requirement-name
(scoped-requirement-requirement sr)))
(if (null? (scoped-requirement-scope sr))
""
(string-append
" "
(scope->string
(scoped-requirement-scope sr))))))
(define (scoped-requirement->string sr)
(string-append
(requirement->string
(scoped-requirement-requirement sr))
(if (null? (scoped-requirement-scope sr))
""
(string-append
" "
(scope->string
(scoped-requirement-scope sr))))))
(define (build-configuration->release build-configuration)
(let*
((sdist
(build-configuration-sdist build-configuration))
(info (sdist-info sdist)))
(release
(pkg-info-name info)
(pkg-info-version info))))
(define (process-build-configuration!
build-configuration-graph
scoped-releases-to-scoped-requirements
result-string-to-requirement-options
current-scope build-configuration)
(let*
((requirement-options-list
(hash-ref
(build-configuration-graph-edges build-configuration-graph)
build-configuration))
(build-configuration-release
(build-configuration->release build-configuration))
(build-configuration-scoped-release
(scoped-release
build-configuration-release
current-scope))
(inner-scope
(scope
build-configuration-release
current-scope))
(requirement-options-and-scopes
(map
(lambda (requirement-options)
(let*
((type
(requirement-options-type requirement-options))
(scope-for-requirement-options
(cond
((member type '(() install))
current-scope)
((member type '(test build))
inner-scope)
(else
(error "Unrecognised requirement type " type)))))
(cons requirement-options scope-for-requirement-options)))
requirement-options-list))
(scoped-requirements
(map
(match-lambda
((requirement-options . scope)
(let
((sr
(scoped-requirement
(requirement-options-requirement
requirement-options)
scope)))
(hash-set!
result-string-to-requirement-options
(scoped-requirement->solver-output-string sr)
(cons
requirement-options
(or
(hash-ref
result-string-to-requirement-options
(scoped-requirement->solver-output-string sr))
'())))
sr)))
requirement-options-and-scopes)))
(if (hash-ref
scoped-releases-to-scoped-requirements
build-configuration-scoped-release)
(begin
(log-msg 'DEBUG "Duplicate scoped-release " build-configuration-scoped-release)
(log-msg 'DEBUG "existing: " (hash-ref scoped-releases-to-scoped-requirements build-configuration-scoped-release))
(log-msg 'DEBUG "new: " scoped-requirements)
;(error "Duplicate scoped-release") TODO: Check this
))
(if (not (hash-ref scoped-releases-to-scoped-requirements
build-configuration-scoped-release))
(hash-set!
scoped-releases-to-scoped-requirements
build-configuration-scoped-release
scoped-requirements))
(for-each
(match-lambda
((requirement-options . scope)
(for-each
(lambda (build-configuration)
(process-build-configuration!
build-configuration-graph
scoped-releases-to-scoped-requirements
result-string-to-requirement-options
scope
build-configuration))
(requirement-options-options requirement-options))))
requirement-options-and-scopes)))
(define (generate-solver-hash-tables
build-configuration-graph)
(let
((scoped-releases-to-scoped-requirements (make-hash-table))
(result-string-to-requirement-options (make-hash-table)))
(for-each
(lambda (requirement-options)
(let
((solver-name
(normalise-requirement-name
(requirement-name (requirement-options-requirement requirement-options)))))
(hash-set!
result-string-to-requirement-options
solver-name
(cons
requirement-options
(or
(hash-ref
result-string-to-requirement-options
solver-name)
'())))
(for-each
(lambda (build-configuration)
(process-build-configuration!
build-configuration-graph
scoped-releases-to-scoped-requirements
result-string-to-requirement-options
root-scope
build-configuration))
(requirement-options-options requirement-options))))
(build-configuration-graph-roots build-configuration-graph))
(log-msg 'DEBUG
"generate-solver-hash-tables result \n"
(string-join
(hash-map->list
(lambda (k v)
(string-join
(cons
(scoped-release->string k)
(map
(lambda (sr)
(string-append
" "
(scoped-requirement->string sr)
"\n"))
v))
"\n"))
scoped-releases-to-scoped-requirements))
"\n")
(values
scoped-releases-to-scoped-requirements
result-string-to-requirement-options)))
(define (scoped-releases-to-scoped-requirements->string-to-scoped-releases
ht)
(hash-map->list
(lambda (scoped-release scoped-requirements)
(cons
(scoped-release->solver-package-name scoped-release)
scoped-release))
ht))
(define (solve-build-configuration-graph
build-configuration-graph)
(receive (scoped-releases-to-scoped-requirements
result-string-to-requirement-options)
(generate-solver-hash-tables
build-configuration-graph)
(let*
((requirements
(map
(lambda (requirement-options)
(requirement-options-requirement requirement-options))
(build-configuration-graph-roots build-configuration-graph)))
(result
(get-versions-or-error
(hash-map->list
(lambda (scoped-release scoped-requirements)
(list
(scoped-release->solver-package-name scoped-release)
(release-version
(scoped-release-release scoped-release))
(map
(lambda (sr)
(list
(scoped-requirement->solver-package-name sr)
(filter
(lambda (s)
(not (equal? s "")))
(string-split
(requirement-specifiers
(scoped-requirement-requirement sr))
#\,))))
scoped-requirements)))
scoped-releases-to-scoped-requirements)
(concatenate
(map
(lambda (r)
(map
(lambda (s)
(string-append
(normalise-requirement-name (requirement-name r))
s))
(string-split
(requirement-specifiers r)
#\,)))
requirements)))))
(if (string? result)
(begin
(log-msg 'ERROR "Error during dependency resolution")
(hash-for-each
(lambda (s-release s-requirements)
(log-msg 'ERROR
(scoped-release->string s-release) ":")
(for-each
(lambda (s-requirement)
(log-msg 'ERROR " " (scoped-requirement->string s-requirement)))
s-requirements))
scoped-releases-to-scoped-requirements)
(log-msg 'ERROR "Requirements:")
(for-each
(lambda (r)
(log-msg 'ERROR " " (requirement->string r)))
requirements)
(error result))
(alist->hash-table
(concatenate
(map
(match-lambda
((result-string version)
(log-msg 'DEBUG result-string " - " version)
(map
(lambda (requirement-options)
(cons requirement-options version))
(or
(hash-ref
result-string-to-requirement-options
result-string)
(begin
(log-msg 'ERROR "|" result-string "| not found")
#f)))))
result)))))))
(define (select-build-configuration-from-requirement-options
requirement-options
version)
(find
(lambda (build-configuration)
(equal?
version
(pkg-info-version
(sdist-info
(build-configuration-sdist build-configuration)))))
(requirement-options-options requirement-options)))
(define (filter-build-configuration-graph
graph
requirement-options-to-version)
(build-configuration-graph
(map
(lambda (requirement-options)
(select-build-configuration-from-requirement-options
requirement-options
(hash-ref
requirement-options-to-version
requirement-options)))
(build-configuration-graph-roots graph))
(alist->hash-table
(hash-map->list
(lambda (build-configuration requirement-options-list)
(cons
build-configuration
(map
(lambda (requirement-options)
(select-build-configuration-from-requirement-options
requirement-options
(hash-ref
requirement-options-to-version
requirement-options)))
requirement-options-list)))
(build-configuration-graph-edges graph)))))
(define %solver-location "")
(define (get-versions-or-error name-version-requirements overall-requirements)
(log-msg 'DEBUG "get-versions-or-error\n")
(if (not (string-null? %solver-location))
(python-eval (string-append "import sys; sys.path.append(\"" %solver-location "\");")))
(python-eval "from solver import get_versions_or_error")
(log-msg 'DEBUG "name-version-requirements\n")
(log-msg 'DEBUG name-version-requirements)
(log-msg 'DEBUG "\n")
(log-msg 'DEBUG "overall-requirements\n")
(log-msg 'DEBUG overall-requirements)
(log-msg 'DEBUG "\n")
(python-apply
'(solver get_versions_or_error)
(list name-version-requirements overall-requirements)
'()))
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