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Commit0deaab8

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feat(agent/agentcontainers): add Exec method to devcontainers CLI
This change adds Exec to the devcontainer CLI.Updatescoder/internal#621
1 parent2dc395d commit0deaab8

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4 files changed

+314
-62
lines changed

4 files changed

+314
-62
lines changed

‎agent/agentcontainers/acmock/acmock.go

Lines changed: 20 additions & 1 deletion
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‎agent/agentcontainers/api_test.go

Lines changed: 32 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -58,20 +58,39 @@ func (f *fakeContainerCLI) ExecAs(ctx context.Context, name, user string, args .
5858
// fakeDevcontainerCLI implements the agentcontainers.DevcontainerCLI
5959
// interface for testing.
6060
typefakeDevcontainerCLIstruct {
61-
idstring
62-
errerror
63-
continueUpchanstruct{}
61+
upIDstring
62+
upErrerror
63+
upErrCchanerror// If set, send to return err, close to return upErr.
64+
execErrerror
65+
execErrCchanerror// If set, send to return err, close to return execErr.
6466
}
6567

66-
func (f*fakeDevcontainerCLI)Up(ctx context.Context,_,_string,_...agentcontainers.DevcontainerCLIUpOptions) (string,error) {
67-
iff.continueUp!=nil {
68+
func (f*fakeDevcontainerCLI)Up(ctx context.Context,_,_string,_...agentcontainers.DevcontainerCLIOptions) (string,error) {
69+
iff.upErrC!=nil {
6870
select {
6971
case<-ctx.Done():
70-
return"",xerrors.New("test timeout")
71-
case<-f.continueUp:
72+
return"",ctx.Err()
73+
caseerr,ok:=<-f.upErrC:
74+
ifok {
75+
returnf.upID,err
76+
}
7277
}
7378
}
74-
returnf.id,f.err
79+
returnf.upID,f.upErr
80+
}
81+
82+
func (f*fakeDevcontainerCLI)Exec(ctx context.Context,_,_string,_string,_ []string,_...agentcontainers.DevcontainerCLIOptions)error {
83+
iff.execErrC!=nil {
84+
select {
85+
case<-ctx.Done():
86+
returnctx.Err()
87+
caseerr,ok:=<-f.execErrC:
88+
ifok {
89+
returnerr
90+
}
91+
}
92+
}
93+
returnf.execErr
7594
}
7695

7796
// fakeWatcher implements the watcher.Watcher interface for testing.
@@ -398,7 +417,7 @@ func TestAPI(t *testing.T) {
398417
},
399418
},
400419
devcontainerCLI:&fakeDevcontainerCLI{
401-
err:xerrors.New("devcontainer CLI error"),
420+
upErr:xerrors.New("devcontainer CLI error"),
402421
},
403422
wantStatus: []int{http.StatusAccepted,http.StatusConflict},
404423
wantBody: []string{"Devcontainer recreation initiated","Devcontainer recreation already in progress"},
@@ -432,7 +451,7 @@ func TestAPI(t *testing.T) {
432451
nowRecreateErrorTrap:=mClock.Trap().Now("recreate","errorTimes")
433452
nowRecreateSuccessTrap:=mClock.Trap().Now("recreate","successTimes")
434453

435-
tt.devcontainerCLI.continueUp=make(chanstruct{})
454+
tt.devcontainerCLI.upErrC=make(chanerror)
436455

437456
// Setup router with the handler under test.
438457
r:=chi.NewRouter()
@@ -470,7 +489,7 @@ func TestAPI(t *testing.T) {
470489
// because we must check what state the devcontainer ends up in
471490
// after the recreation process is initiated and finished.
472491
iftt.wantStatus[0]!=http.StatusAccepted {
473-
close(tt.devcontainerCLI.continueUp)
492+
close(tt.devcontainerCLI.upErrC)
474493
nowRecreateSuccessTrap.Close()
475494
nowRecreateErrorTrap.Close()
476495
return
@@ -497,10 +516,10 @@ func TestAPI(t *testing.T) {
497516
assert.Equal(t,codersdk.WorkspaceAgentDevcontainerStatusStarting,resp.Devcontainers[0].Container.DevcontainerStatus,"container dc status is not starting")
498517

499518
// Allow the devcontainer CLI to continue the up process.
500-
close(tt.devcontainerCLI.continueUp)
519+
close(tt.devcontainerCLI.upErrC)
501520

502521
// Ensure the devcontainer ends up in error state if the up call fails.
503-
iftt.devcontainerCLI.err!=nil {
522+
iftt.devcontainerCLI.upErr!=nil {
504523
nowRecreateSuccessTrap.Close()
505524
// The timestamp for the error will be stored, which gives
506525
// us a good anchor point to know when to do our request.

‎agent/agentcontainers/devcontainercli.go

Lines changed: 77 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -16,37 +16,67 @@ import (
1616

1717
// DevcontainerCLI is an interface for the devcontainer CLI.
1818
typeDevcontainerCLIinterface {
19-
Up(ctx context.Context,workspaceFolder,configPathstring,opts...DevcontainerCLIUpOptions) (idstring,errerror)
19+
Up(ctx context.Context,workspaceFolder,configPathstring,opts...DevcontainerCLIOptions) (idstring,errerror)
20+
Exec(ctx context.Context,workspaceFolder,configPathstring,cmdstring,cmdArgs []string,opts...DevcontainerCLIOptions)error
2021
}
2122

22-
// DevcontainerCLIUpOptions are options for the devcontainer CLI up
23-
// command.
24-
typeDevcontainerCLIUpOptionsfunc(*devcontainerCLIUpConfig)
23+
// DevcontainerCLIOptions are options for the devcontainer CLI commands.
24+
typeDevcontainerCLIOptionsfunc(*devcontainerCLIUpConfig)
2525

2626
// WithRemoveExistingContainer is an option to remove the existing
27-
// container.
28-
funcWithRemoveExistingContainer()DevcontainerCLIUpOptions {
27+
// container. Can only be used with the Up command.
28+
funcWithRemoveExistingContainer()DevcontainerCLIOptions {
2929
returnfunc(o*devcontainerCLIUpConfig) {
30-
o.removeExistingContainer=true
30+
ifo.command!="up" {
31+
panic("developer error: WithRemoveExistingContainer can only be used with the Up command")
32+
}
33+
o.args=append(o.args,"--remove-existing-container")
3134
}
3235
}
3336

34-
// WithOutput sets stdout and stderr writers for Up command logs.
35-
funcWithOutput(stdout,stderr io.Writer)DevcontainerCLIUpOptions {
37+
// WithOutput setsadditionalstdout and stderr writers for logs.
38+
funcWithOutput(stdout,stderr io.Writer)DevcontainerCLIOptions {
3639
returnfunc(o*devcontainerCLIUpConfig) {
3740
o.stdout=stdout
3841
o.stderr=stderr
3942
}
4043
}
4144

45+
// WithContainerID sets the container ID to target a specific container.
46+
// Can only be used with the Exec command.
47+
funcWithContainerID(idstring)DevcontainerCLIOptions {
48+
returnfunc(o*devcontainerCLIUpConfig) {
49+
ifo.command!="exec" {
50+
panic("developer error: WithContainerID can only be used with the Exec command")
51+
}
52+
o.args=append(o.args,"--container-id",id)
53+
}
54+
}
55+
56+
// WithRemoteEnv sets environment variables for the Exec command.
57+
// Can only be used with the Exec command.
58+
funcWithRemoteEnv(env...string)DevcontainerCLIOptions {
59+
returnfunc(o*devcontainerCLIUpConfig) {
60+
ifo.command!="exec" {
61+
panic("developer error: WithRemoteEnv can only be used with the Exec command")
62+
}
63+
for_,e:=rangeenv {
64+
o.args=append(o.args,"--remote-env",e)
65+
}
66+
}
67+
}
68+
4269
typedevcontainerCLIUpConfigstruct {
70+
commandstring// The devcontainer CLI command to run, e.g. "up", "exec".
4371
removeExistingContainerbool
72+
args []string// Additional arguments for the command.
4473
stdout io.Writer
4574
stderr io.Writer
4675
}
4776

48-
funcapplyDevcontainerCLIUpOptions(opts []DevcontainerCLIUpOptions)devcontainerCLIUpConfig {
77+
funcapplyDevcontainerCLIOptions(commandstring,opts []DevcontainerCLIOptions)devcontainerCLIUpConfig {
4978
conf:=devcontainerCLIUpConfig{
79+
command:command,
5080
removeExistingContainer:false,
5181
}
5282
for_,opt:=rangeopts {
@@ -71,8 +101,8 @@ func NewDevcontainerCLI(logger slog.Logger, execer agentexec.Execer) Devcontaine
71101
}
72102
}
73103

74-
func (d*devcontainerCLI)Up(ctx context.Context,workspaceFolder,configPathstring,opts...DevcontainerCLIUpOptions) (string,error) {
75-
conf:=applyDevcontainerCLIUpOptions(opts)
104+
func (d*devcontainerCLI)Up(ctx context.Context,workspaceFolder,configPathstring,opts...DevcontainerCLIOptions) (string,error) {
105+
conf:=applyDevcontainerCLIOptions("up",opts)
76106
logger:=d.logger.With(slog.F("workspace_folder",workspaceFolder),slog.F("config_path",configPath),slog.F("recreate",conf.removeExistingContainer))
77107

78108
args:= []string{
@@ -83,9 +113,7 @@ func (d *devcontainerCLI) Up(ctx context.Context, workspaceFolder, configPath st
83113
ifconfigPath!="" {
84114
args=append(args,"--config",configPath)
85115
}
86-
ifconf.removeExistingContainer {
87-
args=append(args,"--remove-existing-container")
88-
}
116+
args=append(args,conf.args...)
89117
cmd:=d.execer.CommandContext(ctx,"devcontainer",args...)
90118

91119
// Capture stdout for parsing and stream logs for both default and provided writers.
@@ -117,6 +145,40 @@ func (d *devcontainerCLI) Up(ctx context.Context, workspaceFolder, configPath st
117145
returnresult.ContainerID,nil
118146
}
119147

148+
func (d*devcontainerCLI)Exec(ctx context.Context,workspaceFolder,configPathstring,cmdstring,cmdArgs []string,opts...DevcontainerCLIOptions)error {
149+
conf:=applyDevcontainerCLIOptions("exec",opts)
150+
logger:=d.logger.With(slog.F("workspace_folder",workspaceFolder),slog.F("config_path",configPath))
151+
152+
args:= []string{"exec"}
153+
ifworkspaceFolder!="" {
154+
args=append(args,"--workspace-folder",workspaceFolder)
155+
}
156+
ifconfigPath!="" {
157+
args=append(args,"--config",configPath)
158+
}
159+
args=append(args,conf.args...)
160+
args=append(args,cmd)
161+
args=append(args,cmdArgs...)
162+
c:=d.execer.CommandContext(ctx,"devcontainer",args...)
163+
164+
stdoutWriters:= []io.Writer{&devcontainerCLILogWriter{ctx:ctx,logger:logger.With(slog.F("stdout",true))}}
165+
ifconf.stdout!=nil {
166+
stdoutWriters=append(stdoutWriters,conf.stdout)
167+
}
168+
c.Stdout=io.MultiWriter(stdoutWriters...)
169+
stderrWriters:= []io.Writer{&devcontainerCLILogWriter{ctx:ctx,logger:logger.With(slog.F("stderr",true))}}
170+
ifconf.stderr!=nil {
171+
stderrWriters=append(stderrWriters,conf.stderr)
172+
}
173+
c.Stderr=io.MultiWriter(stderrWriters...)
174+
175+
iferr:=c.Run();err!=nil {
176+
returnxerrors.Errorf("devcontainer exec failed: %w",err)
177+
}
178+
179+
returnnil
180+
}
181+
120182
// parseDevcontainerCLILastLine parses the last line of the devcontainer CLI output
121183
// which is a JSON object.
122184
funcparseDevcontainerCLILastLine(ctx context.Context,logger slog.Logger,p []byte) (resultdevcontainerCLIResult,errerror) {

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