Module render 

Turning graph facts into lines an assistant reads.

Everything here is generic over what is being rendered: the digests in this module’s siblings share the line budget, the number formatting, the path shortening, and — above all — sanitize, which every string that came out of the graph must pass through before it reaches a rendered line.

Constants

EMPTY_MAP

The one line a store with nothing in it gets: what is missing, and the command that fixes it.

MAX_CONTEXT_LINES

Longest render_context digest, in lines. Wider than the others because it quotes source.

MAX_MAP_LINES

Longest digest any repograph tool may print, in lines.

MAX_TOOL_LINES

Longest digest every other tool here prints, in lines.

MIXED

What a set of files with no shared directory is called.

SEP

Separator between the items of a one-line list.

Functions

age

A duration in seconds as one coarse unit: 45s, 12m, 3h, 20d. Negative input — a clock that ran backwards — reads as 0s.

basename

The last /-separated segment of a key: src/core/db.rs → db.rs.

cap_lines

Keep at most max lines, dropping the rest.

cluster_name

What to call a set of files.

common_dir_prefix

The longest directory prefix every key shares, /-joined. Empty when the keys share no leading directory at all.

dir_components

The directory segments of a key: src/core/db.rs → ["src", "core"]. A key with no / has none.

plural

n of word, pluralised by adding an s. 1 file, 2 files.

quarter_index

The quarter a timestamp falls in, counted from year 0 so that subtracting one index from another gives a number of quarters.

quarter_label

A quarter index as its label: 2026Q3.

render_context

Render a ContextReport as the digest an assistant reads: at most MAX_CONTEXT_LINES lines, byte-identical for the same report.

render_impact

Render an ImpactReport: at most MAX_TOOL_LINES lines.

render_map

Render a RepoMap as the digest an assistant reads: at most MAX_MAP_LINES lines, byte-identical for the same map.

render_owners

Render an OwnersReport: at most MAX_TOOL_LINES lines.

render_why

Render a WhyReport: at most MAX_TOOL_LINES lines.

sanitize

Replace every ASCII control character (0x00-0x1f and 0x7f, tabs and newlines included) with a space, so a value read out of the graph cannot forge a line break, a section header, or a terminal escape sequence.

short_names

Shorten keys to their filenames, keeping the full path for any filename that would otherwise appear twice.

thousands

1204 → 1,204. Groups of three, ASCII digits only.

top_tokens

The n path segments most keys carry, ignoring prefix.

ymd

A Unix timestamp as a calendar date in UTC: 2026-09-04.