Use untruncated ps output for unix pid detection

wesm · wesm · commit dff07499c7a1 · 2026-02-26T09:18:46.000-06:00
diff --git a/cmd/roborev/processcheck_unix.go b/cmd/roborev/processcheck_unix.go
@@ -49,7 +49,8 @@ func identifyPIDForUpdate(pid int) updatePIDIdentity {
 		return updatePIDNotRoborev
 	}
 
-	cmd := exec.Command("ps", "-p", strconv.Itoa(pid), "-o", "command=")
+	// Use -ww to request untruncated command output on BSD/macOS ps.
+	cmd := exec.Command("ps", "-ww", "-p", strconv.Itoa(pid), "-o", "command=")
 	output, err := cmd.Output()
 	if err != nil {
 		return updatePIDUnknown

Original file line number	Diff line number	Diff line change
`@@ -49,7 +49,8 @@ func identifyPIDForUpdate(pid int) updatePIDIdentity {`
`49`	`49`	`return updatePIDNotRoborev`
`50`	`50`	`}`
`51`	`51`
`52`		`- cmd := exec.Command("ps", "-p", strconv.Itoa(pid), "-o", "command=")`
	`52`	`+ // Use -ww to request untruncated command output on BSD/macOS ps.`
	`53`	`+ cmd := exec.Command("ps", "-ww", "-p", strconv.Itoa(pid), "-o", "command=")`
`53`	`54`	`output, err := cmd.Output()`
`54`	`55`	`if err != nil {`
`55`	`56`	`return updatePIDUnknown`