Adds a CI check to keep opted-in directories' README.md files in sync
with their package godoc. For now tsnet (and its sub-packages under
tsnet/example) is the only opted-in tree. The list of directories
lives in misc/genreadme/genreadme.go as defaultRoots, so CI and humans
both just run `./tool/go run ./misc/genreadme` with no arguments.
The check piggybacks on the existing go_generate job in test.yml and
fails if any README.md is out of date, pointing the user at the same
command.
Along the way:
- tempfork/pkgdoc now emits Markdown instead of plain text: headings
become level-2 with no {#hdr-...} anchors, and [Symbol] doc links
resolve to pkg.go.dev URLs, including for symbols in the current
package (which the default Printer would otherwise emit as bare
#Name fragments with no backing anchor in a README). Parsing no
longer uses parser.ImportsOnly, so doc.Package knows the package's
symbols and can resolve [Symbol] links at all.
- genreadme also emits a pkg.go.dev Go Reference badge at the top of
a library package's README; suppressed for package main.
- tsnet/tsnet.go's package godoc is expanded in idiomatic godoc
syntax — [Type], [Type.Method], reference-style [link]: URL
definitions — rather than Markdown-flavored [text](url) or
backtick-quoted identifiers, so that both pkg.go.dev and the
generated README.md render cleanly from a single source.
Fixes#19431Fixes#19483Fixes#19470
Change-Id: I8ca37e9e7b3bd446b8bfa7a91ac548f142688cb1
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Walter Poupore <walterp@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
also port pkgdoc, into the tempfork folder
git rev from corp at the time this copy was made:
- e909fc93595414c90ff1339cece7c84500ab3c36
Updates #19470
Change-Id: I3d98d82020a2b336647b795210dcb7065dfa44d7
Change-Id: Ie63141860b76dd2d5ae3ff52f8a4bcdf6106421e
Signed-off-by: Walter Poupore <walterp@tailscale.com>
