fix(tutorial): avoid broken pipe caused by passing non-JSON to jq (#1193

) Following the tutorial code results in a broken pipe. This is a simple fixup that adds a call to tail so that jq is only given valid input.
ooni · Aug 22, 2023 · 23059b6 · 23059b6
1 parent cc8f002
commit 23059b6
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diff --git a/internal/tutorial/experiment/torsf/chapter01/main.go b/internal/tutorial/experiment/torsf/chapter01/main.go
@@ -244,7 +244,7 @@ func main() {
 // You can now run this code as follows:
 //
 // ```
-// $ go run ./experiment/torsf/chapter01 | jq
+// $ go run ./experiment/torsf/chapter01 | tail -n 1 | jq
 // [snip]
 // {
 //   "data_format_version": "",

diff --git a/internal/tutorial/experiment/torsf/chapter03/torsf.go b/internal/tutorial/experiment/torsf/chapter03/torsf.go
@@ -161,7 +161,7 @@ func (m *Measurer) run(ctx context.Context,
 // It's now time to run the new code we've written:
 //
 // ```
-// $ go run ./experiment/torsf/chapter03 | jq
+// $ go run ./experiment/torsf/chapter03 | tail -n 1 | jq
 // 2021/06/21 21:21:18  info [  0.1%] torsf experiment is running
 // 2021/06/21 21:21:19  info [  0.2%] torsf experiment is running
 // [...]

diff --git a/internal/tutorial/experiment/torsf/chapter04/torsf.go b/internal/tutorial/experiment/torsf/chapter04/torsf.go
@@ -228,7 +228,7 @@ func (m *Measurer) run(ctx context.Context,
 // We can now run the code as follows to obtain:
 //
 // ```
-// $ go run ./experiment/torsf/chapter04 | jq
+// $ go run ./experiment/torsf/chapter04 | tail -n 1 | jq
 // [...]
 // Jun 21 23:40:50.000 [notice] Bootstrapped 100% (done): Done
 // 2021/06/21 23:40:50  info [100.0%] torsf experiment is finished