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etcdctl/ctlv3: fix watch with exec commands, interactive mode flag parsing #9688

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merged 4 commits into from
May 4, 2018

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@gyuho gyuho commented May 3, 2018

Following command was failing because the parser incorrectly
picks up the second "watch" string in exec command, thus
passing wrong exec commands.

ETCDCTL_API=3 ./bin/etcdctl watch aaa -- echo watch event received

panic: runtime error: slice bounds out of range

goroutine 1 [running]:
github.com/coreos/etcd/etcdctl/ctlv3/command.parseWatchArgs(0xc42002e080, 0x8, 0x8, 0xc420206a20, 0x5, 0x6, 0x0, 0x0, 0x0, 0x0, ...)
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/command/watch_command.go:303 +0xbed
github.com/coreos/etcd/etcdctl/ctlv3/command.watchCommandFunc(0xc4202a7180, 0xc420206a20, 0x5, 0x6)
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/command/watch_command.go:73 +0x11d
github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).execute(0xc4202a7180, 0xc420206960, 0x6, 0x6, 0xc4202a7180, 0xc420206960)
	/home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:766 +0x2c1
github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0x1363de0, 0xc420128638, 0xc420185e01, 0xc420185ee8)
	/home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:852 +0x30a
github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).Execute(0x1363de0, 0x0, 0x0)
	/home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:800 +0x2b
github.com/coreos/etcd/etcdctl/ctlv3.Start()
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/ctl_nocov.go:25 +0x8e
main.main()
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/main.go:40 +0x17b

Should fix TestCtlV3AuthAndWatch and TestCtlV3WatchNoTLS in coverage tests.

#9684

@gyuho gyuho removed the WIP label May 3, 2018
@gyuho gyuho changed the title etcdctl/ctlv3: fix watch with exec commands etcdctl/ctlv3: fix watch with exec commands, interactive mode flag parsing May 3, 2018
@gyuho gyuho added the WIP label May 3, 2018
gyuho added 4 commits May 3, 2018 17:22
Following command was failing because the parser incorrectly
picks up the second "watch" string in exec command, thus
passing wrong exec commands.

```
ETCDCTL_API=3 ./bin/etcdctl watch aaa -- echo watch event received

panic: runtime error: slice bounds out of range

goroutine 1 [running]:
github.com/coreos/etcd/etcdctl/ctlv3/command.parseWatchArgs(0xc42002e080, 0x8, 0x8, 0xc420206a20, 0x5, 0x6, 0x0, 0x0, 0x0, 0x0, ...)
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/command/watch_command.go:303 +0xbed
github.com/coreos/etcd/etcdctl/ctlv3/command.watchCommandFunc(0xc4202a7180, 0xc420206a20, 0x5, 0x6)
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/command/watch_command.go:73 +0x11d
github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).execute(0xc4202a7180, 0xc420206960, 0x6, 0x6, 0xc4202a7180, 0xc420206960)
	/home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:766 +0x2c1
github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0x1363de0, 0xc420128638, 0xc420185e01, 0xc420185ee8)
	/home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:852 +0x30a
github.com/coreos/etcd/vendor/github.com/spf13/cobra.(*Command).Execute(0x1363de0, 0x0, 0x0)
	/home/gyuho/go/src/github.com/coreos/etcd/vendor/github.com/spf13/cobra/command.go:800 +0x2b
github.com/coreos/etcd/etcdctl/ctlv3.Start()
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/ctlv3/ctl_nocov.go:25 +0x8e
main.main()
	/home/gyuho/go/src/github.com/coreos/etcd/etcdctl/main.go:40 +0x17b
```

Signed-off-by: Gyuho Lee <[email protected]>
@gyuho gyuho removed the WIP label May 4, 2018
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Codecov Report

❗ No coverage uploaded for pull request base (master@2ad0acd). Click here to learn what that means.
The diff coverage is 73.43%.

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@@            Coverage Diff            @@
##             master    #9688   +/-   ##
=========================================
  Coverage          ?   68.91%           
=========================================
  Files             ?      373           
  Lines             ?    34829           
  Branches          ?        0           
=========================================
  Hits              ?    24001           
  Misses            ?     9110           
  Partials          ?     1718
Impacted Files Coverage Δ
etcdctl/ctlv3/command/watch_command.go 47.09% <73.43%> (ø)

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@gyuho gyuho merged commit 14a2d0d into etcd-io:master May 4, 2018
@gyuho gyuho deleted the fix-watch branch May 4, 2018 01:46
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