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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fails if any README.md is out of date, pointing the user at the same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 #19431
Fixes #19483
Fixes #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>
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This file was never truly necessary and has never actually been used in
the history of Tailscale's open source releases.
A Brief History of AUTHORS files
---
The AUTHORS file was a pattern developed at Google, originally for
Chromium, then adopted by Go and a bunch of other projects. The problem
was that Chromium originally had a copyright line only recognizing
Google as the copyright holder. Because Google (and most open source
projects) do not require copyright assignemnt for contributions, each
contributor maintains their copyright. Some large corporate contributors
then tried to add their own name to the copyright line in the LICENSE
file or in file headers. This quickly becomes unwieldy, and puts a
tremendous burden on anyone building on top of Chromium, since the
license requires that they keep all copyright lines intact.
The compromise was to create an AUTHORS file that would list all of the
copyright holders. The LICENSE file and source file headers would then
include that list by reference, listing the copyright holder as "The
Chromium Authors".
This also become cumbersome to simply keep the file up to date with a
high rate of new contributors. Plus it's not always obvious who the
copyright holder is. Sometimes it is the individual making the
contribution, but many times it may be their employer. There is no way
for the proejct maintainer to know.
Eventually, Google changed their policy to no longer recommend trying to
keep the AUTHORS file up to date proactively, and instead to only add to
it when requested: https://opensource.google/docs/releasing/authors.
They are also clear that:
> Adding contributors to the AUTHORS file is entirely within the
> project's discretion and has no implications for copyright ownership.
It was primarily added to appease a small number of large contributors
that insisted that they be recognized as copyright holders (which was
entirely their right to do). But it's not truly necessary, and not even
the most accurate way of identifying contributors and/or copyright
holders.
In practice, we've never added anyone to our AUTHORS file. It only lists
Tailscale, so it's not really serving any purpose. It also causes
confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header
in other open source repos which don't actually have an AUTHORS file, so
it's ambiguous what that means.
Instead, we just acknowledge that the contributors to Tailscale (whoever
they are) are copyright holders for their individual contributions. We
also have the benefit of using the DCO (developercertificate.org) which
provides some additional certification of their right to make the
contribution.
The source file changes were purely mechanical with:
git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g'
Updates #cleanup
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
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This updates all source files to use a new standard header for copyright
and license declaration. Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.
This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.
Updates #6865
Signed-off-by: Will Norris <will@tailscale.com>
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Fixes #6485
Signed-off-by: Maisem Ali <maisem@tailscale.com>
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strings.Cut allows us to be more precise here. This example was written
before strings.Cut existed.
Signed-off-by: Xe <xe@tailscale.com>
Signed-off-by: Xe <xe@tailscale.com>
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Before this would silently fail if this program was running on a machine
that was not already running Tailscale. This patch changes the WhoIs
call to use the tsnet.Server LocalClient instead of the global tailscale
LocalClient.
Signed-off-by: Xe <xe@tailscale.com>
Signed-off-by: Xe <xe@tailscale.com>
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Updates #5706
Signed-off-by: Emmanuel T Odeke <emmanuel@orijtech.com>
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Signed-off-by: Maisem Ali <maisem@tailscale.com>
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Signed-off-by: Maisem Ali <maisem@tailscale.com>
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Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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