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(define-module (guix-data-service model git-branch)
#:use-module (squee)
#:use-module (srfi srfi-19)
#:export (insert-git-branch-entry
git-branches-for-commit
most-recent-commits-for-branch
all-branches-with-most-recent-commit))
(define (insert-git-branch-entry conn
name commit
git-repository-id datetime)
(exec-query
conn
(string-append
"INSERT INTO git_branches (name, commit, git_repository_id, datetime) "
"VALUES ($1, $2, $3, to_timestamp($4)) "
"ON CONFLICT DO NOTHING")
(list name
commit
git-repository-id
(date->string datetime "~s"))))
(define (git-branches-for-commit conn commit)
(define query
"
SELECT name, datetime FROM git_branches WHERE commit = $1
ORDER BY datetime DESC")
(exec-query conn query (list commit)))
(define* (most-recent-commits-for-branch conn branch-name
#:key
(limit 100)
after-date
before-date)
(define query
(string-append
"SELECT git_branches.commit, datetime, "
"(guix_revisions.id IS NOT NULL) as guix_revision_exists "
"FROM git_branches "
"LEFT OUTER JOIN guix_revisions ON git_branches.commit = guix_revisions.commit "
"WHERE name = $1 "
(if after-date
(simple-format #f " AND datetime > '~A'"
(date->string after-date "~1 ~3"))
"")
(if before-date
(simple-format #f " AND datetime < '~A'"
(date->string before-date "~1 ~3"))
"")
"ORDER BY datetime DESC"
(if limit
(simple-format #f " LIMIT ~A;" limit)
"")))
(exec-query
conn
query
(list branch-name)))
(define (all-branches-with-most-recent-commit conn)
(define query
(string-append
"SELECT DISTINCT ON (name) name, git_branches.commit, "
"datetime, (guix_revisions.id IS NOT NULL) guix_revision_exists "
"FROM git_branches "
"LEFT OUTER JOIN guix_revisions ON git_branches.commit = guix_revisions.commit "
"WHERE git_branches.commit IS NOT NULL "
"ORDER BY name, datetime DESC;"))
(exec-query
conn
query))
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