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(define-module (guix-qa-frontpage manage-patch-branches)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-19)
#:use-module (srfi srfi-71)
#:use-module (ice-9 match)
#:use-module (ice-9 popen)
#:use-module (ice-9 rdelim)
#:use-module (ice-9 regex)
#:use-module (ice-9 threads)
#:use-module (web uri)
#:use-module (web client)
#:use-module (json)
#:use-module (guix sets)
#:use-module (guix build utils)
#:use-module (guix-build-coordinator utils)
#:use-module ((guix build download) #:select (http-fetch))
#:use-module ((guix build utils) #:select (with-directory-excursion))
#:use-module (guix-qa-frontpage mumi)
#:use-module (guix-qa-frontpage git-repository)
#:use-module (guix-qa-frontpage patchwork)
#:use-module (guix-qa-frontpage guix-data-service)
#:export (start-manage-patch-branches-thread
get-issue-branch-base-and-target-refs))
(define (run . args)
(simple-format (current-error-port)
"running: ~A\n"
(string-join args " "))
(apply invoke args))
(define (issue-numbers-for-branches)
(define rexp
(make-regexp "\\/issue-([0-9]*)$"))
(with-bare-git-repository
(lambda ()
(run "git" "fetch" "--prune" "patches")
(let ((pipe (open-pipe* OPEN_READ
"git" "ls-remote" "--heads" "patches")))
(let loop ((line (read-line pipe))
(branches '()))
(if (eof-object? line)
(begin
(close-pipe pipe)
(reverse branches))
(loop (read-line pipe)
(match (regexp-exec rexp line)
(#f branches)
(issue-number-match
(cons (match:substring issue-number-match 1)
branches))))))))))
(define (get-issue-branch-base-and-target-refs issue)
(define base-tag
(string-append "base-for-issue-" (number->string issue)))
(define target-branch
(string-append "patches/issue-" (number->string issue)))
(let ((base (get-commit base-tag))
(target (get-commit target-branch)))
(and base
target
`((base . ,base)
(target . ,target)))))
(define* (pwclient-check-create
patch-id
#:key
(project "guix-patches")
status
context
target-url
description)
(apply invoke
`("pwclient"
"check-create"
"-p" ,project
"-c" ,context
"-s" ,status
,(simple-format #f "~A" patch-id)
,@(if description
`("-d" ,description)
'())
,@(if target-url
`("-u" ,target-url)
'()))))
(define (invoke-read-line prog . args)
(let* ((pipe (apply open-pipe* OPEN_READ prog
args))
(result
(read-line pipe)))
(close-pipe pipe)
result))
(define (create-branch-for-issue issue-number patchwork-series)
(define (apply-patches)
(let ((series-data
(call-with-values
(lambda ()
(http-get (string->uri
(string-append
(%patchwork-instance) "/api/1.0"
"/series/" patchwork-series "/"))
#:streaming? #t))
(lambda (response body)
(json->scm body)))))
(if (assoc-ref series-data "received_all")
(let* ((patch-data
(vector->list
(assoc-ref series-data "patches")))
(branch-name
(simple-format #f "issue-~A" issue-number))
(base-tag
(string-append "base-for-" branch-name)))
(simple-format #t "all patches have been received\n")
(system* "git" "tag" "--delete" base-tag)
(invoke "git" "tag" base-tag)
(let ((patch-ids
(map
(lambda (patch)
(let ((name (assoc-ref patch "name"))
(id (assoc-ref patch "id")))
(simple-format
#t "Running git am \"~A.patch\" (~A)\n"
id name)
(let ((patch-file
(simple-format #f "~A.patch" id)))
(call-with-output-file patch-file
(lambda (output)
(let ((port size (http-fetch
(string->uri (assoc-ref patch "mbox")))))
(dump-port port output))))
(with-exception-handler
(lambda (exn)
(simple-format #t "exception when applying patch ~A: ~A\n"
patch-file exn)
(raise-exception exn))
(lambda ()
(simple-format #t "applying ~A\n" patch-file)
(invoke "git" "am" "--empty=drop" "--3way" patch-file))
#:unwind? #t))
id))
patch-data)))
(let ((base-commit-hash
(invoke-read-line "git" "show-ref" "--hash" base-tag))
(target-commit-hash
(invoke-read-line "git" "rev-parse" "HEAD")))
(if (string=? base-commit-hash
target-commit-hash)
(simple-format
(current-error-port)
"Commit hashes match, so no patches have been applied\n")
(begin
(system* "git" "push" "--delete" "patches" base-tag)
(invoke "git" "push" "--verbose" "patches" base-tag)
;; Delete the branch, to provide a clearer history
(system* "git" "push" "--progress" "patches" "--delete" branch-name)
(invoke "git" "push" "--progress" "-u" "patches" branch-name))))))
(begin
(simple-format #t "all patches have not been received, skipping\n")))))
(let ((latest-master-commit
(get-latest-processed-branch-revision "master")))
(with-bare-git-repository
(lambda ()
(invoke "git" "fetch" "--prune" "origin")
(system* "git" "worktree" "remove" "--force"
(simple-format #f "../issue-~A" issue-number))
(system* "git" "branch" "-D"
(simple-format #f "issue-~A" issue-number))))
(with-git-worktree
(simple-format #f "issue-~A" issue-number)
latest-master-commit
(lambda ()
(with-exception-handler
(lambda (exn)
(simple-format
(current-error-port)
"exception when applying patch: ~A\n"
exn))
apply-patches
#:unwind? #t))
#:remove-after? #t)))
(define (start-manage-patch-branches-thread)
(define (dig alist . parts)
(if (pair? alist)
(match parts
((part)
(assoc-ref alist part))
((part . rest)
(if (list? alist)
(apply dig
(assoc-ref alist part)
(cdr parts))
#f)))
#f))
(define (perform-pass)
(let* ((issue-numbers
(issue-numbers-for-branches))
(all-patchwork-series
(latest-patchwork-series-by-issue))
(series-to-create-branches-for
(take all-patchwork-series
150)))
(with-bare-git-repository
(lambda ()
(simple-format #t "checking for branches to delete\n")
(for-each
(lambda (issue-number)
(when (or (if (not (mumi-issue-open? issue-number))
(begin (simple-format (current-error-port)
"Removing ~A, issue closed\n"
issue-number)
#t)
#f)
(let* ((series
(assq-ref all-patchwork-series
(string->number issue-number)))
(comparison-url
(and series
(and=>
(get-issue-branch-base-and-target-refs
(string->number issue-number))
patch-series-compare-url))))
(with-exception-handler
(lambda (exn)
(if (and
(guix-data-service-error? exn)
(and=>
(dig
(guix-data-service-error-response-body exn)
"query_parameters"
"base_commit"
"message")
(lambda (message)
(string=? message "unknown commit"))))
(begin
(simple-format
(current-error-port)
"Removing ~A, base revision gone\n"
issue-number)
#t)
#f))
(lambda ()
(if comparison-url
(patch-series-comparison comparison-url)
#f)
#f)
#:unwind? #t)))
(run "git" "push" "patches" "--delete"
(string-append "base-for-issue-" issue-number))
(run "git" "push" "patches" "--delete"
(string-append "issue-" issue-number))))
issue-numbers)))
(simple-format #t "finished checking for branches to delete\n")
(for-each
(match-lambda
((issue-number . patchwork-series)
(when (or (not
(member (number->string issue-number)
issue-numbers
string=?))
;; Does the branch need re-creating with a new series?
(let ((branch-committer-date
(get-git-branch-head-committer-date
(simple-format #f "patches/issue-~A" issue-number))))
(if branch-committer-date
(time<?
(date->time-utc branch-committer-date)
(date->time-utc
(string->date
(assoc-ref patchwork-series "date")
"~Y-~m-~dT~H:~M:~S")))
#f)))
(simple-format #t "creating branch for issue ~A\n" issue-number)
(with-exception-handler
(lambda (exn)
(simple-format
(current-error-port)
"exception when creating branch for ~A: ~A\n"
issue-number
exn))
(lambda ()
(with-throw-handler #t
(lambda ()
(create-branch-for-issue issue-number
(number->string
(assoc-ref patchwork-series
"id"))))
(lambda args
(display (backtrace) (current-error-port))
(newline (current-error-port)))))))))
series-to-create-branches-for)
(simple-format (current-error-port)
"finished processing patch branches (last issue: ~A)\n"
(car (last series-to-create-branches-for))))
(sleep 3600))
(setenv "GIT_SSH_COMMAND"
"ssh -o StrictHostKeyChecking=no")
(call-with-new-thread
(lambda ()
(while #t
(with-exception-handler
(lambda (exn)
(simple-format
(current-error-port)
"exception in manage patch branches thread: ~A\n"
exn))
(lambda ()
(with-throw-handler #t
perform-pass
(lambda args
(display (backtrace) (current-error-port))
(newline (current-error-port)))))
#:unwind? #t)))))
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