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210ef30 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | """Attached files for the developer assistant. Master prompt 6.
Limits from the spec: text or code only, up to 1 MB each, at most 20 files. On top of that, a
total budget for what is injected into one prompt — twenty 1 MB files would blow through the
free tier's per-minute token allowance in a single turn, so past the budget each file is cut and
the model is told it was.
"""
import re
from dataclasses import dataclass
MAX_FILE_BYTES = 1_000_000
MAX_FILES = 20
#: Characters of attached text injected into one turn. Roughly 50k tokens.
PROMPT_BUDGET_CHARS = 200_000
#: Extensions whose content is worth sending. Anything else is refused at the door rather than
#: sent as mojibake.
TEXT_EXTENSIONS = frozenset(
".php .js .jsx .ts .tsx .mjs .cjs .py .rb .go .rs .java .kt .kts .swift .c .h .cpp .hpp .cs "
".html .htm .css .scss .sass .less .vue .svelte .json .yaml .yml .toml .ini .env.example .xml "
".sql .md .txt .sh .bash .ps1 .bat .dockerfile .gradle .properties .twig .blade.php .lock "
".graphql .prisma .csv .conf .htaccess .nginx".split()
)
_LANGUAGE = {
".php": "php",
".js": "javascript",
".jsx": "jsx",
".ts": "typescript",
".tsx": "tsx",
".py": "python",
".json": "json",
".yaml": "yaml",
".yml": "yaml",
".sql": "sql",
".css": "css",
".scss": "scss",
".html": "html",
".vue": "vue",
".sh": "bash",
".java": "java",
".kt": "kotlin",
".go": "go",
".rs": "rust",
".rb": "ruby",
".md": "markdown",
}
_FENCE = re.compile(r"```[\w+-]*\n(.*?)```", re.DOTALL)
class AttachmentError(ValueError):
pass
@dataclass(frozen=True)
class Attachment:
name: str
content: str
def is_text_file(name: str) -> bool:
lower = name.lower()
base = lower.rsplit("/", 1)[-1]
if base in {
"dockerfile",
"makefile",
".htaccess",
"composer.json",
"package.json",
".gitignore",
}:
return True
return any(lower.endswith(ext) for ext in TEXT_EXTENSIONS)
def validate(files: list[Attachment]) -> list[Attachment]:
if len(files) > MAX_FILES:
raise AttachmentError(f"at most {MAX_FILES} files per message")
for item in files:
if not is_text_file(item.name):
raise AttachmentError(f"{item.name}: only text and code files can be attached")
if len(item.content.encode("utf-8")) > MAX_FILE_BYTES:
raise AttachmentError(f"{item.name}: larger than 1 MB")
if "\x00" in item.content:
raise AttachmentError(f"{item.name}: looks like a binary file")
return files
def language_for(name: str) -> str:
lower = name.lower()
if lower.endswith(".blade.php"):
return "blade"
for ext, language in _LANGUAGE.items():
if lower.endswith(ext):
return language
return ""
def render_for_prompt(files: list[Attachment], tree: list[str] | None = None) -> str:
"""The attachments as one block of the user's message, inside the total budget."""
if not files and not tree:
return ""
parts: list[str] = []
if tree:
shown = tree[:400]
more = f"\n… and {len(tree) - len(shown)} more" if len(tree) > len(shown) else ""
parts.append("PROJECT TREE\n" + "\n".join(shown) + more)
remaining = PROMPT_BUDGET_CHARS
per_file = PROMPT_BUDGET_CHARS // max(len(files), 1)
for item in files:
budget = min(per_file, remaining)
body = item.content
note = ""
if len(body) > budget:
body = body[:budget]
note = f"\n[… truncated: {len(item.content) - budget} more characters not shown]"
remaining -= len(body)
fence = language_for(item.name)
parts.append(f"FILE: {item.name}\n```{fence}\n{body}\n```{note}")
return "ATTACHED FOR THIS MESSAGE\n\n" + "\n\n".join(parts)
def pasted_code(message: str) -> str:
"""Code he pasted into the message itself: the fenced blocks, or failing that, all of it."""
blocks = _FENCE.findall(message)
return "\n\n".join(block.strip() for block in blocks) if blocks else message.strip()
def resolve(target: str | None, attachments: dict[str, str], message: str) -> tuple[str, str]:
"""Which code a dev tool should look at: (label, content).
A target naming an attachment wins — exactly, then by file name. Otherwise it is the code
pasted into the message, and failing that the only attachment if there is exactly one.
"""
if target:
wanted = target.strip()
if wanted in attachments:
return wanted, attachments[wanted]
by_name = {name.rsplit("/", 1)[-1]: name for name in attachments}
if wanted in by_name:
return by_name[wanted], attachments[by_name[wanted]]
code = pasted_code(message)
if _FENCE.search(message) or not attachments:
return "pasted code", code
if len(attachments) == 1:
name, content = next(iter(attachments.items()))
return name, content
return "pasted code", code
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