T44d Web · Gallery builds for wasm32: one story per section by URL, themed by the host
The gallery's entry runs natively or, on wasm32, from a wasm_bindgen start through gpui_web, single-threaded with WebGL2 fallback. ?page, ?story and ?theme choose what shows; an unknown one fails in the page and the log. set_theme switches the mode later. Pictures load from ELY_GALLERY_ASSETS. scripts/stories.py writes examples/gallery/stories.json from the pages.
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@@ -4,6 +4,7 @@ set -eu
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cargo fmt --check
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cargo clippy --all-targets --features test-support -- -D warnings
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cargo test --lib --features test-support --quiet
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python3 scripts/stories.py --check
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fail=0
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files=$(git ls-files -co --exclude-standard '*.rs')
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multi=$(awk 'FNR==1{prev=0} /^[[:space:]]*\/\// {if(prev) print FILENAME":"FNR; prev=1; next} {prev=0}' $files)
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@@ -17,6 +18,6 @@ raw=$(awk '/#\[cfg\(test\)\]/{nextfile} /(^|[^.[:alnum:]_])px\(/{print FILENAME"
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[ -z "$raw" ] || { echo "raw px in components:"; echo "$raw"; fail=1; }
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deferred=$(grep -rn 'deferred(' src --include='*.rs' | grep -v '^src/primitives/layer.rs' || true)
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[ -z "$deferred" ] || { echo "gpui deferred outside primitives::raise:"; echo "$deferred"; fail=1; }
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instant=$(grep -rnE '(^|[^_[:alnum:]])time::(Instant|\{[^}]*Instant)' src || true)
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instant=$(grep -rnE '(^|[^_[:alnum:]])time::(Instant|\{[^}]*Instant)' src examples || true)
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[ -z "$instant" ] || { echo "std Instant panics in the browser, use web_time::Instant:"; echo "$instant"; fail=1; }
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exit $fail
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@@ -0,0 +1,186 @@
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"""Writes examples/gallery/stories.json: every gallery page and its sections, in the order they draw.
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A section is a story the web gallery shows alone at ?page=<page slug>&story=<story slug>. Its
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components are the names in its title that are entries in tasks/*.md, so "Sizes" names none.
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`--check` fails if the committed file differs.
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"""
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import json
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import re
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import sys
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from pathlib import Path
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ROOT = Path(__file__).resolve().parent.parent
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PAGES = ROOT / "examples/gallery/pages"
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OUT = ROOT / "examples/gallery/stories.json"
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def strip(text):
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"""Blanks comments and literals' insides, keeping offsets, so braces and calls parse."""
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out, i, n = list(text), 0, len(text)
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def blank(a, b):
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for k in range(a, b):
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if out[k] != "\n":
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out[k] = " "
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while i < n:
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if text.startswith("//", i):
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j = text.find("\n", i)
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j = n if j < 0 else j
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blank(i, j)
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i = j
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elif text.startswith("/*", i):
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j = text.index("*/", i) + 2
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blank(i, j)
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i = j
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elif m := re.match(r'b?r(#*)"', text[i:]):
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end = '"' + m.group(1)
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j = text.index(end, i + m.end()) + len(end)
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blank(i + m.end(), j - len(end))
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i = j
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elif text[i] == '"':
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j = i + 1
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while text[j] != '"':
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j += 2 if text[j] == "\\" else 1
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blank(i + 1, j)
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i = j + 1
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elif m := re.match(r"'(\\.[^']*|[^'\\])'", text[i:]):
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blank(i, i + m.end())
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i += m.end()
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else:
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i += 1
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return "".join(out)
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def literal(text, at):
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"""The string literal starting at `at`, decoded."""
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m = re.compile(r'"((?:[^"\\]|\\.)*)"', re.S).match(text, at)
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return json.loads('"' + re.sub(r"\\\n\s*", "", m.group(1)) + '"')
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def functions(folder):
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"""Every `fn` in a page's folder: (module, name) -> (source, stripped, body start, body end)."""
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found = {}
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for file in sorted(folder.rglob("*.rs")):
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module = file.stem
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text = file.read_text()
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bare = strip(text)
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for m in re.finditer(r"\bfn\s+(\w+)\b", bare):
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depth, j = 0, bare.index("{", m.end())
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if ";" in bare[m.end():j]:
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continue
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k = j
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while True:
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depth += {"{": 1, "}": -1}.get(bare[k], 0)
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if depth == 0:
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break
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k += 1
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found[(module, m.group(1))] = (text, bare, j, k)
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return found
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def sections(folder):
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"""Section titles in the order the page's render reaches them; fails on any it never reaches."""
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fns = functions(folder)
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order, seen = [], set()
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def walk(module, name):
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if (module, name) in seen:
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return
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seen.add((module, name))
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text, bare, start, end = fns[(module, name)]
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call = re.compile(r"(?<![\w.])(?:(\w+)::)?(\w+)\s*\(")
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for m in call.finditer(bare, start, end):
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owner, callee = m.group(1) or module, m.group(2)
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if callee == "section" and m.group(1) is None:
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at = m.end() + len(bare[m.end():]) - len(bare[m.end():].lstrip())
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if text[at] != '"':
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sys.exit(f"{folder.name}/{module}.rs: a section whose title is not a literal")
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order.append((literal(text, at), module))
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elif (owner, callee) in fns:
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walk(owner, callee)
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walk("mod", "render")
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reached = {title for title, _ in order}
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for (module, _), (text, bare, start, end) in fns.items():
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for m in re.finditer(r"(?<![\w.])section\s*\(\s*\"", bare[start:end]):
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title = literal(text, start + m.end() - 1)
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if title not in reached:
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sys.exit(f"{folder.name}/{module}.rs: render never reaches section {title!r}")
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return [title for title, _ in order]
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def slug(title):
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"""As the gallery's ui::slug: ASCII letters and digits, lowercased, dashes between."""
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out = re.sub(r"[^a-z0-9]+", "-", "".join(c.lower() if c.isascii() else " " for c in title))
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return out.strip("-")
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def entries():
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"""Names the task lists give components, keyed by letters alone."""
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names = {}
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for file in sorted((ROOT / "tasks").glob("*.md")):
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for line in file.read_text().splitlines():
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if m := re.match(r"- \[[ x]\] (.+?)(?: — | → | \(T\d|$)", line):
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for name in m.group(1).split(" / "):
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names[key(name)] = re.sub(r"\s*\([^)]*\)", "", name).strip()
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return names
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def key(name):
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return re.sub(r"[^a-z0-9]", "", re.sub(r"\([^)]*\)", "", name).lower())
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def components(title, known):
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"""The task lists' names for what the title names: "Icon button" is IconButton."""
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names = []
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for part in re.sub(r"\s*\([^)]*\)", "", title).split(" · "):
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for name in part.split(" → ")[0].split(" / "):
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if key(name) in known and known[key(name)] not in names:
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names.append(known[key(name)])
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return names
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def pages():
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listing = (PAGES / "mod.rs").read_text()
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order = re.findall(r"^\s+(\w+)::PAGE,$", listing, re.M)
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known = entries()
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out = []
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for module in order:
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folder = PAGES / module
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head = (folder / "mod.rs").read_text()
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field = lambda name: re.search(rf"^\s+{name}: (.+),$", head, re.M).group(1)
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titles = sections(folder)
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slugs = [slug(title) for title in titles]
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for twice in {s for s in slugs if slugs.count(s) > 1}:
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sys.exit(f"{module}: two stories answer to {twice}")
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out.append(
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{
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"number": int(field("number")),
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"slug": json.loads(field("slug")),
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"title": json.loads(field("title")),
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"summary": json.loads(field("summary")),
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"stories": [
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{"title": t, "slug": s, "components": components(t, known)}
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for t, s in zip(titles, slugs)
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],
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}
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)
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return out
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def main():
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rows = [json.dumps(page, ensure_ascii=False) for page in pages()]
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text = '{"pages": [\n' + ",\n".join(rows) + "\n]}\n"
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if sys.argv[1:] == ["--check"]:
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if OUT.read_text() != text:
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sys.exit(f"{OUT.relative_to(ROOT)} is stale: run python3 scripts/stories.py")
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elif sys.argv[1:]:
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sys.exit("usage: python3 scripts/stories.py [--check]")
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else:
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OUT.write_text(text)
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if __name__ == "__main__":
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main()
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