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Update docs on cached print statement behavior #17674

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Update docs on cached print statement behavior #17674

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9 changes: 3 additions & 6 deletions site/en/rules/rules-tutorial.md
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Original file line number Diff line number Diff line change
Expand Up @@ -119,8 +119,6 @@ query") or the `build` command:

```
$ bazel build :all
DEBUG: /usr/home/bazel-codelab/foo.bzl:8:1: bzl file evaluation
DEBUG: /usr/home/bazel-codelab/BUILD:2:1: BUILD file
DEBUG: /usr/home/bazel-codelab/foo.bzl:2:5: analyzing //:bin1
DEBUG: /usr/home/bazel-codelab/foo.bzl:2:5: analyzing //:bin2
INFO: Analyzed 2 targets (0 packages loaded, 0 targets configured).
Expand All @@ -129,10 +127,9 @@ INFO: Found 2 targets...

As you can see, `_foo_binary_impl` is now called twice - once for each target.

Some readers will notice that "bzl file evaluation" is printed again, although
the evaluation of foo.bzl is cached after the call to `bazel query`. Bazel
doesn't reevaluate the code, it only replays the print events. Regardless of
the cache state, you get the same output.
Notice that neither "bzl file evaluation" nor "BUILD file" are printed again,
because the evaluation of `foo.bzl` is cached after the call to `bazel query`.
Bazel only emits `print` statements when they are actually executed.

## Creating a file

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