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bump-jolt-native.bb · 158 lines · 7.3 KBBlitzBasic Blame HistoryRaw
Take every jolt-native half from the release, and only from there a008d3b nandi 18d ago1#!/bin/sh
2#_(
3exec "$(dirname "$0")/bb" "$0" "$@"
4)
5
6;; Move every jolt-native pin in this tree to a release of it.
7;;
8;; scripts/bump-jolt-native.bb # the latest release
9;; scripts/bump-jolt-native.bb v0.1.3 # a named one
10;;
11;; A jolt-native bump is four facts in three places: the tag, the URL, the size
12;; and the digest of each archive in scripts/*.dotslash, the release's commit in
13;; deps.edn, and the table buck reads, which is generated from the first. Done
14;; by hand it is a lot of copying between a browser and a sha256sum, and the
15;; failure mode is a manifest that still says v0.1.2 while its digest is v0.1.3's
16;; — which DotSlash catches, but only on the machine that next fetches it.
17;;
18;; So: ask GitLab what the release holds, fetch each archive once, weigh it,
19;; write the manifests back, put the release's commit in deps.edn — which is
20;; what jolt resolves glimmer-vidya from, and so what the boot image compiles
21;; against — and re-run dotslash-to-buck.
22;;
23;; Nothing here decides whether the new release is a good idea. It only makes
24;; the tree say one version instead of two.
25(require '[babashka.classpath :as cp])
26(cp/add-classpath (str (babashka.fs/parent *file*)))
27(require '[frq.paths :as paths]
28 '[babashka.fs :as fs]
29 '[babashka.process :as p]
30 '[cheshire.core :as json]
31 '[clojure.string :as str])
32
33(def here (fs/parent (fs/canonicalize *file*)))
34(def root (str (fs/parent here)))
35(def project "nandithebull%2Fjolt-native")
36(def repo "https://gitlab.com/nandithebull/jolt-native")
37
38;; The release, as GitLab has it. `?per_page=1` when no tag is asked for: the
39;; list is newest first, and the newest is what "latest" means here — the
40;; /releases/permalink/latest endpoint sorts by release date, which is not the
41;; same thing once a release is edited.
42(defn release [tag]
43 (let [url (if tag
44 (str "https://gitlab.com/api/v4/projects/" project "/releases/" tag)
45 (str "https://gitlab.com/api/v4/projects/" project "/releases?per_page=1"))
46 body (json/parse-string (paths/out "curl" "-fsSL" url))]
47 (if tag
48 body
49 (or (first body) (paths/die (str "no releases at all under " repo))))))
50
51;; The manifests this tree pins out of jolt-native. Every DotSlash file beside
52;; this script whose providers point at the repo — rather than a list written
53;; here, which would be a sixth place to forget.
54(defn manifests []
55 (->> (fs/glob here "*.dotslash")
56 sort
57 (keep (fn [file]
58 (let [text (slurp (str file))
59 json (json/parse-string (subs text (str/index-of text "{")))]
60 (when (->> (get json "platforms")
61 vals
62 (some #(str/starts-with? (get-in % ["providers" 0 "url"]) repo)))
63 {:file file :text text :json json}))))))
64
65;; The archive an entry names, at the new tag. The URL a manifest carries is the
66;; release permalink — /-/releases/<tag>/downloads/<asset> — so the asset's name
67;; is its last segment, and the name carries the version too. Both move.
68(defn retag [url old new]
69 (-> url
70 (str/replace (str "/releases/" old "/") (str "/releases/" new "/"))
71 (str/replace (str "-" old ".") (str "-" new "."))))
72
73(defn tag-of [url]
74 (second (re-find #"/-/releases/([^/]+)/downloads/" url)))
75
76;; Fetch once per distinct URL, then weigh it: DotSlash wants the size and the
77;; sha256 of the archive as downloaded, not of anything inside it.
78(def weigh
79 (memoize
80 (fn [dir url]
81 (let [file (fs/path dir (last (str/split url #"/")))]
82 (println (str " fetching " (fs/file-name file)))
83 (p/shell "curl" "-fsSL" "-o" (str file) url)
84 {:size (fs/size file)
85 :digest (first (str/split (paths/out "sha256sum" (str file)) #"\s+"))
86 :file file}))))
87
88;; What the shim will reach for inside the archive. A release that moved a file
89;; leaves a manifest that fetches and verifies and then cannot resolve, which is
90;; a worse thing to find out from than this.
91(defn check-path! [{:keys [file]} path]
92 (let [names (set (str/split-lines (paths/out "tar" "-tzf" (str file))))]
93 (when-not (some #(= path (str/replace % #"^\./" "")) names)
94 (paths/die (str "no " path " in " (fs/file-name file))
95 "The release moved it; the manifest's `path` needs a hand."))))
96
97;; The JSON back out, in the shape it went in: two-space indentation, a value
98;; after each key, and the `//` comment block above it kept — that block is why
99;; anyone reading the manifest knows what the object is for.
100(def pretty
101 (json/create-pretty-printer
102 (assoc json/default-pretty-print-options
103 :indentation " "
104 :indent-arrays? true
105 :object-field-value-separator ": ")))
106
107(defn rewrite [{:keys [file text json]} tmp tag]
108 (let [platforms (get json "platforms")
109 updated
110 (into (array-map)
111 (for [[platform entry] platforms
112 :let [url (retag (get-in entry ["providers" 0 "url"]) (tag-of (get-in entry ["providers" 0 "url"])) tag)
113 {:keys [size digest] :as got} (weigh tmp url)]]
114 (do
115 (check-path! got (get entry "path"))
116 [platform (-> entry
117 (assoc "size" size "digest" digest)
118 (assoc-in ["providers" 0 "url"] url))])))
119 head (subs text 0 (str/index-of text "{"))
120 ;; The prose above the JSON names the release too — "from jolt-native's
121 ;; v0.1.3 release". Left saying the old one it would be a lie the moment
122 ;; this script succeeds.
123 head (reduce (fn [h old] (str/replace h old tag))
124 head
125 (distinct (keep #(tag-of (get-in % ["providers" 0 "url"])) (vals platforms))))]
126 (spit (str file) (str head (json/generate-string (assoc json "platforms" updated) {:pretty pretty}) "\n"))
127 (println (str " " (fs/file-name file)))))
128
129;; deps.edn takes glimmer-vidya as a git dependency, and the boot image is
130;; compiled from the source root jolt resolves that to. Replaced as text rather
131;; than round-tripped as EDN: the file is mostly comments explaining why each
132;; pin is where it is, and rewriting it as data would throw all of them away.
133(defn bump-deps! [commit]
134 (let [file (fs/path root "deps.edn")
135 text (slurp (str file))
136 old (paths/dep-sha root repo)]
137 (cond
138 (nil? old) (paths/die (str "no dependency on " repo " in deps.edn"))
139 (= old commit) (println " deps.edn already at this commit")
140 :else (do (spit (str file) (str/replace text old commit))
141 (println (str " deps.edn " (subs old 0 8) " -> " (subs commit 0 8)))))))
142
143(let [tag (first *command-line-args*)
144 rel (release tag)
145 tag (get rel "tag_name")
146 commit (get-in rel ["commit" "id"])
147 files (manifests)
148 tmp (fs/create-temp-dir {:prefix "jolt-native-"})]
149 (when (empty? files)
150 (paths/die (str "no DotSlash manifest in " here " points at " repo)))
151 (println (str "jolt-native " tag " (" (subs commit 0 8) ")"))
152 (try
153 (doseq [m files] (rewrite m tmp tag))
154 (finally (fs/delete-tree tmp)))
155 (bump-deps! commit)
156 (p/shell (str (fs/path here "dotslash-to-buck")))
157 (println (str "\nNow: git diff, then `just lib` and `just apk` — the pins are "
158 "written, nothing is built.")))