commit 27be70979b54d7510bf401d9581fb4075737ef34
author Philip Patsch <philip.patsch@tweag.io> Tue Aug 28 02:30:51 2018 -0700
committer Copybara-Service <copybara-piper@google.com> Tue Aug 28 02:32:32 2018 -0700
tree 52ef3123d66451ab54ef867c2c2e53a5761326a6
parent 2894b3005693d1318a28b66d22ca39eb7a34077c

Remove perl dependency for bash completions

The commands that are substituted here will only consist of ASCII
characters, so we can avoid the dependency on perl(1) and just use
tr(1).

Tested manually:

```
$ ./scripts/generate_bash_completion.sh --bazel=bazel --output=./complete.bash --prepend=./scripts/bazel-complete-template.bash
$ source complete.bash
$ _bazel__options_for build
```

Fixes #5943.

Closes #5999.

PiperOrigin-RevId: 210511218

scripts/bazel-complete-template.bash

diff --git a/scripts/bazel-complete-template.bash b/scripts/bazel-complete-template.bash
index d3f89bb..531e329 100644
--- a/scripts/bazel-complete-template.bash
+++ b/scripts/bazel-complete-template.bash
@@ -154,7 +154,8 @@
 _bazel__options_for() {
   local options
   if [[ "${BAZEL_COMMAND_LIST}" =~ ^(.* )?$1( .*)?$ ]]; then
-      local option_name=$(echo $1 | perl -ne 'print uc' | tr "-" "_")
+      # assumes option names only use ASCII characters
+      local option_name=$(echo $1 | tr a-z A-Z | tr "-" "_")
       eval "echo \${BAZEL_COMMAND_${option_name}_FLAGS}" | tr " " "\n"
   fi
 }
@@ -164,7 +165,8 @@
 _bazel__expansion_for() {
   local options
   if [[ "${BAZEL_COMMAND_LIST}" =~ ^(.* )?$1( .*)?$ ]]; then
-      local option_name=$(echo $1 | perl -ne 'print uc' | tr "-" "_")
+      # assumes option names only use ASCII characters
+      local option_name=$(echo $1 | tr a-z A-Z | tr "-" "_")
       eval "echo \${BAZEL_COMMAND_${option_name}_ARGUMENT}"
   fi
 }