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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
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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 adds support for having every viewer type implement
jsonv2.MarshalerTo and jsonv2.UnmarshalerFrom.
This provides a significant boost in performance
as the json package no longer needs to validate
the entirety of the JSON value outputted by MarshalJSON,
nor does it need to identify the boundaries of a JSON value
in order to call UnmarshalJSON.
For deeply nested and recursive MarshalJSON or UnmarshalJSON calls,
this can improve runtime from O(N²) to O(N).
This still references "github.com/go-json-experiment/json"
instead of the experimental "encoding/json/v2" package
now available in Go 1.25 under goexperiment.jsonv2
so that code still builds without the experiment tag.
Of note, the "github.com/go-json-experiment/json" package
aliases the standard library under the right build conditions.
Updates tailscale/corp#791
Signed-off-by: Joe Tsai <joetsai@digital-static.net>
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It doesn't need a Clone method, like a time.Time, etc.
And then, because Go 1.23+ uses unique.Handle internally for
the netip package types, we can remove those special cases.
Updates #14058 (pulled out from that PR)
Updates tailscale/corp#24485
Change-Id: Iac3548a9417ccda5987f98e0305745a6e178b375
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Fixes #13873
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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We have several checked type assertions to *types.Named in both cmd/cloner and cmd/viewer.
As Go 1.23 updates the go/types package to produce Alias type nodes for type aliases,
these type assertions no longer work as expected unless the new behavior is disabled
with gotypesalias=0.
In this PR, we add codegen.NamedTypeOf(t types.Type), which functions like t.(*types.Named)
but also unrolls type aliases. We then use it in place of type assertions in the cmd/cloner and
cmd/viewer packages where appropriate.
We also update type switches to include *types.Alias alongside *types.Named in relevant cases,
remove *types.Struct cases when switching on types.Type.Underlying and update the tests
with more cases where type aliases can be used.
Updates #13224
Updates #12912
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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alias type nodes
Go 1.23 updates the go/types package to produce Alias type nodes for type aliases, unless disabled with gotypesalias=0.
This new default behavior breaks codegen.LookupMethod, which uses checked type assertions to types.Named and
types.Interface, as only named types and interfaces have methods.
In this PR, we update codegen.LookupMethod to perform method lookup on the right-hand side of the alias declaration
and clearly switch on the supported type nodes types. We also improve support for various edge cases, such as when an alias
is used as a type parameter constraint, and add tests for the LookupMethod function.
Additionally, we update cmd/viewer/tests to include types with aliases used in type fields and generic type constraints.
Updates #13224
Updates #12912
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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Signed-off-by: cai.li <cai.li@qingteng.cn>
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container types
This adds support for container-like types such as Container[T] that
don't explicitly specify a view type for T. Instead, a package implementing
a container type should also implement and export a ContainerView[T, V] type
and a ContainerViewOf(*Container[T]) ContainerView[T, V] function, which
returns a view for the specified container, inferring the element view type V
from the element type T.
Updates #12736
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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interfaces
This adds support for generic types and interfaces to our cloner and viewer codegens.
It updates these packages to determine whether to make shallow or deep copies based
on the type parameter constraints. Additionally, if a template parameter or an interface
type has View() and Clone() methods, we'll use them for getters and the cloner of the
owning structure.
Updates #12736
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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Updates #11058
Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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I noticed cmd/{cloner,viewer} didn't support structs with embedded
fields while working on a change in another repo. This adds support.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Fixes #7702
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
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Update all code generation tools, and those that check for license
headers to use the new standard header.
Also update copyright statement in LICENSE file.
Fixes #6865
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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It broke in our corp repo that lacks copyright headers.
Change-Id: Iafc433e6b6affe83b45477899455527658dc4f12
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Updates #6865
Change-Id: I6b86c646968ebbd4553cf37df5e5612fbf5c5f7d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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perl -i -npe 's,netaddr.IPPrefixFrom,netip.PrefixFrom,' $(git grep -l -F netaddr.)
perl -i -npe 's,netaddr.IPPortFrom,netip.AddrPortFrom,' $(git grep -l -F netaddr. )
perl -i -npe 's,netaddr.IPPrefix,netip.Prefix,g' $(git grep -l -F netaddr. )
perl -i -npe 's,netaddr.IPPort,netip.AddrPort,g' $(git grep -l -F netaddr. )
perl -i -npe 's,netaddr.IP\b,netip.Addr,g' $(git grep -l -F netaddr. )
perl -i -npe 's,netaddr.IPv6Raw\b,netip.AddrFrom16,g' $(git grep -l -F netaddr. )
goimports -w .
Then delete some stuff from the net/netaddr shim package which is no
longer neeed.
Updates #5162
Change-Id: Ia7a86893fe21c7e3ee1ec823e8aba288d4566cd8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Updates #5162
Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Also run go generate again for Copyright updates.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
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goimports is a superset of gofmt that also groups imports.
(the goimports tool also adds/removes imports as needed, but that
part is disabled here)
Change-Id: Iacf0408dfd9497f4ed3da4fa50e165359ce38498
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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My favorite part of generics.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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The fully qualified name of the type is thisPkg.tname,
so write the args like that too.
Suggested-by: Joe Tsai <joetsai@digital-static.net>
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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And use it in cmd/cloner.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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And use it in cmd/cloner.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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Refactored out from cmd/cloner.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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This is a package for shared utilities used in doing codegen programs.
The inaugural API is for writing gofmt'd code to a file.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
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