webnet/tailscale
1
0
Fork 0
Code Issues 1 Pull Requests 1 Packages Projects Releases Wiki Activity
Files
6db30a10f7a160efeaeeb955e92569c767ca8b2d
tailscale/cmd
T
History
Simon LawandGitHub 6db30a10f7 cmd/tailscale: shrink QR codes using half blocks (#17084) 
When running `tailscale up --qr`, the QR code is rendered using
two full blocks ██ to form a square pixel. This is a problem for
people with smaller terminals, because the output is 37 lines high.
All modern terminals support half block characters, like ▀ and ▄,
which only takes 19 lines and can easily fit in a regular terminal
window.

For example, https://login.tailscale.com/a/0123456789 is now rendered:

```
user@host:~$ tailscale up --qr
█████████████████████████████████████
█████████████████████████████████████
████ ▄▄▄▄▄ █ ▀▀   █▄▀▀ ▄ █ ▄▄▄▄▄ ████
████ █   █ █▀ ▄▄▄█▀█▄▀  ▄█ █   █ ████
████ █▄▄▄█ ██▄ ▄▀▀▄▄ ▀▀ ▀█ █▄▄▄█ ████
████▄▄▄▄▄▄▄█ ▀▄▀ █▄▀▄▀▄█ █▄▄▄▄▄▄▄████
████▄█▄ ▀▄▄▄█▀▄█▀ ▀▄ ▄  ▀▀ ▀▀▄█▄ ████
████▄▀▄▀▄█▄ █ ▄▄▄▄█▀██▀██▄▄█▀█▄▄▀████
████▄█▀ ▀ ▄█▄▄▀▄▀█ ▄ ▄█▀█▄▀██▄ ▀▀████
█████▀ ▀  ▄▀▀▀▀▄▀▄▀▀ ▄▄ ▄ ▀  █▄ ▄████
██████ ▄▄█▄▄▄▄▄▀ █ ▄▀▀▄█▀ █ ▄ ▀ █████
████▄█▄▄  ▄▀ ▀██▀  ▄█▀▀████▄▀█ ██████
█████▄▄▄█▄▄▄▀▀ █▄▄▄▄▄ ▀█ ▄▄▄   ▀▀████
████ ▄▄▄▄▄ █ ██▄ ▀ █▀█ ▄ █▄█  █▄█████
████ █   █ █▀  █ ▀█▄▄ █▀  ▄  ▀▄▀▄████
████ █▄▄▄█ █▄█▀█▄▀██▀██▄ ▀█▄▀▀▄▀▄████
████▄▄▄▄▄▄▄█▄▄███▄▄▄███▄▄▄██▄██▄█████
█████████████████████████████████████
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
```

To render a QR code with full blocks, like we did in the past, use the
new `--qr-format` flag:

```
user@host:~$ tailscale up --qr --qr-format=large
██████████████████████████████████████████████████████████████████████████
██████████████████████████████████████████████████████████████████████████
██████████████████████████████████████████████████████████████████████████
██████████████████████████████████████████████████████████████████████████
████████              ██  ████      ██  ████      ██              ████████
████████  ██████████  ██            ████      ██  ██  ██████████  ████████
████████  ██      ██  ████        ██████  ██      ██  ██      ██  ████████
████████  ██      ██  ██    ████████  ████      ████  ██      ██  ████████
████████  ██      ██  ████      ████      ████  ████  ██      ██  ████████
████████  ██████████  ██████  ██    ████          ██  ██████████  ████████
████████              ██  ██  ██  ██  ██  ██  ██  ██              ████████
████████████████████████    ██    ████  ██  ████  ████████████████████████
████████  ██    ██      ████  ████  ██          ████  ████  ██    ████████
██████████████    ████████  ████      ██  ██              ██████  ████████
████████  ██  ██  ██    ██          ██████████████    ██████    ██████████
██████████  ██  ██████  ██  ██████████  ████  ██████████  ██████  ████████
████████  ████  ██    ██    ██  ████        ██████  ██████    ████████████
████████████        ████████  ██  ██  ██  ████  ████  ██████      ████████
████████████  ██      ████████  ██  ████            ██    ██      ████████
██████████          ██        ██  ██      ████  ██        ████  ██████████
████████████      ██          ██  ██    ████  ████  ██      ██  ██████████
████████████  ████████████████    ██  ██    ████    ██  ██      ██████████
████████  ██          ██  ████████      ██████████████  ████  ████████████
████████████████    ██      ████      ████    ██████████  ██  ████████████
██████████      ██      ████  ██            ████              ████████████
████████████████████████      ████████████    ██  ██████          ████████
████████              ██  ████    ██  ██████      ██  ██    ██  ██████████
████████  ██████████  ██  ██████      ██  ██  ██  ██████    ██████████████
████████  ██      ██  ████    ██  ████      ████          ██  ██  ████████
████████  ██      ██  ██      ██    ██████  ██      ██      ██  ██████████
████████  ██      ██  ██  ██████  ████████████    ████  ████  ██  ████████
████████  ██████████  ██████  ████  ████  ██████    ████    ██  ██████████
████████              ██    ██████      ██████      ████  ████  ██████████
██████████████████████████████████████████████████████████████████████████
██████████████████████████████████████████████████████████████████████████
██████████████████████████████████████████████████████████████████████████
██████████████████████████████████████████████████████████████████████████
```

Fixes #17083

Signed-off-by: Simon Law <sfllaw@tailscale.com>
2025-09-16 15:49:03 -07:00
..
addlicense
all: fix golangci-lint errors
2025-01-07 13:05:37 -08:00
build-webclient
client/web: precompress assets
2023-12-07 20:57:31 -05:00
checkmetrics
cmd/checkmetrics: add command for checking metrics against kb
2024-12-02 10:30:46 +01:00
cloner
cmd/viewer, types/views: implement support for json/v2 (#16852)
2025-08-14 13:46:48 -07:00
connector-gen
cmd/connector-gen: add helper tool for wide app connector configurations
2023-12-15 09:29:42 -08:00
containerboot
cmd/containerboot: do not reset state on non-existant secret (#17021)
2025-09-04 12:40:55 +01:00
derper
cmd/derper: add start of ACE support
2025-09-12 12:51:45 -07:00
derpprobe
cmd/derpprobe,prober: add run all probes handler (#16875)
2025-08-16 09:42:25 -04:00
dist
{cmd/dist,release/dist}: add support for intermediary QNAP signing certificates
2025-08-15 16:27:46 -05:00
featuretags
feature/featuretags: add auto-generated constants for all modular features
2025-09-15 09:21:27 -07:00
get-authkey
cmd,tsnet,internal/client: create internal shim to deprecated control plane API
2025-02-18 10:23:04 -06:00
gitops-pusher
scripts/check_license_headers.sh: delete, rewrite as a Go test
2025-06-16 13:35:38 -07:00
hello
cmd/hello: display native ipv4 (#15191)
2025-03-04 08:47:35 -07:00
k8s-nameserver
cmd/k8s-nameserver: fix AAAA record query response (#12412)
2024-06-10 17:57:22 +01:00
k8s-operator
feature/portmapper: make the portmapper & its debugging tools modular
2025-09-16 11:35:49 -07:00
k8s-proxy
cmd/k8s-proxy,k8s-operator: fix serve config for userspace mode (#16919)
2025-08-22 16:07:05 +01:00
mkmanifest
cmd/mkmanifest, cmd/tailscale, cmd/tailscaled: remove Windows arm32 resources from OSS
2023-03-01 15:45:12 -07:00
mkpkg
go.mod: upgrade nfpm to v2 (#8786)
2023-08-03 13:00:45 -07:00
mkversion
version/mkversion: open-source version generation logic
2023-02-18 05:21:05 +00:00
nardump
cmd/nardump: support symlinks, add basic test
2025-04-07 19:24:51 -07:00
natc
cmd/natc,tsconsensus: add cluster config admin
2025-08-20 14:04:28 -07:00
netlogfmt
all: use Go 1.22 range-over-int
2024-04-16 15:32:38 -07:00
nginx-auth
tailcfg,all: add and use Node.IsTagged()
2023-03-13 08:44:25 -07:00
omitsize
feature/portmapper: make the portmapper & its debugging tools modular
2025-09-16 11:35:49 -07:00
pgproxy
all: use new LocalAPI client package location
2025-02-05 14:41:42 -08:00
printdep
cmd/printdep: print correct toolchain URL
2023-02-11 17:57:36 +00:00
proxy-test-server
net/tlsdial: fix TLS cert validation of HTTPS proxies
2025-06-18 14:20:39 -07:00
proxy-to-grafana
scripts/check_license_headers.sh: delete, rewrite as a Go test
2025-06-16 13:35:38 -07:00
sniproxy
net/{netx,memnet},all: add netx.DialFunc, move memnet Network impl
2025-04-08 10:07:47 -07:00
speedtest
all: update copyright and license headers
2023-01-27 15:36:29 -08:00
ssh-auth-none-demo
ssh,tempfork/gliderlabs/ssh: replace github.com/tailscale/golang-x-crypto/ssh with golang.org/x/crypto/ssh
2025-01-31 16:36:39 -06:00
stunc
cmd/stunc: enforce read timeout deadline (#14309)
2024-12-06 14:27:52 -05:00
stund
go.toolchain.branch: bump to go1.25 (#16954)
2025-08-26 07:44:26 -07:00
stunstamp
cmd/stunstamp: add protocol context to timeout logs (#13422)
2024-09-09 18:42:13 -07:00
sync-containers
all: adjust some build tags for plan9
2023-08-24 15:42:35 -07:00
systray
client/systray: allow specifying tailscaled socket
2025-08-05 09:19:49 -07:00
tailscale
cmd/tailscale: shrink QR codes using half blocks (#17084)
2025-09-16 15:49:03 -07:00
tailscaled
feature/featuretags, all: add ts_omit_acme to disable TLS cert support
2025-09-16 14:11:15 -07:00
testcontrol
all: use Go 1.22 range-over-int
2024-04-16 15:32:38 -07:00
testwrapper
.github/workflows: shard the Windows builder
2025-06-20 06:11:11 -07:00
tl-longchain
all: use new LocalAPI client package location
2025-02-05 14:41:42 -08:00
tsconnect
health,ipn/ipnlocal: introduce eventbus in heath.Tracker (#17085)
2025-09-16 11:25:29 -04:00
tsidp
feature/portmapper: make the portmapper & its debugging tools modular
2025-09-16 11:35:49 -07:00
tsshd
all: update copyright and license headers
2023-01-27 15:36:29 -08:00
tta
all: use new LocalAPI client package location
2025-02-05 14:41:42 -08:00
viewer
cmd/viewer: add field comments to generated view methods
2025-08-27 09:58:59 -07:00
vnet
cmd/vnet: add wsproxy mode
2025-03-29 11:02:42 -07:00
xdpderper
tsweb: split promvarz into an optional dependency
2025-03-18 16:57:04 -07:00