Open-source Bazel bash completion script

This script enable shell completion for Bazel inside the Bourne-again shell.

Fixes #38

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MOS_MIGRATED_REVID=90745457

1 files changed, 28 insertions, 0 deletions

diff --git a/scripts/BUILD b/scripts/BUILD
new file mode 100644
index 0000000000..e3892a675f
--- /dev/null
+++ b/scripts/BUILD
@@ -0,0 +1,28 @@
+# Scripts for IDE / Environment support for Bazel
+package(default_visibility = ["//visibility:private"])
+
+# The master copy of the completion logic are bazel-complete-template.bash
+# and bazel-complete-header.bash.
+# This is where you should make edits.
+genrule(
+    name = "bash_completion",
+    srcs = ["bazel-complete-template.bash"],
+    outs = ["bazel-complete.bash"],
+    cmd = "set +x; cat $(SRCS) > $@\n" +
+          "touch WORKSPACE err.log\n" +
+          "trap \"rm WORKSPACE err.log\" EXIT\n" +
+          "$(location //src:bazel) help completion 2>err.log >>$@ || { cat err.log; exit 1; }",
+    output_to_bindir = 1,
+    tools = ["//src:bazel"],
+)
+
+sh_test(
+    name = "bash_completion_test",
+    size = "small",
+    srcs = ["bash_completion_test.sh"],
+    data = [
+        "bazel-complete.bash",
+        "testenv.sh",
+        "//src/test/shell:bashunit",
+    ],
+)