tools/ci.sh: Add zsh and fish shell completion support.

This commit adds custom command completion functions for both the zsh
and fish shell.

The behaviour for those new completions follow the existing completion
for the bash shell, including the way to generate the completion alias
(with appropriately named command line switches).

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>

2 files changed, 23 insertions, 1 deletions

diff --git a/docs/develop/gettingstarted.rst b/docs/develop/gettingstarted.rst
index cb479458e..a6afc5cad 100644
--- a/docs/develop/gettingstarted.rst
+++ b/docs/develop/gettingstarted.rst
@@ -338,7 +338,15 @@ If you use the bash shell, you can add a ``ci`` command with tab completion:
 
 .. code-block:: bash
 
-   $ eval `tools/ci.sh --bash-completion`
+   $ eval $(tools/ci.sh --bash-completion)
+
+For the zsh shell, replace ``--bash-completion`` with ``--zsh-completion``.
+For the fish shell, replace ``--bash-completion`` with ``--fish-completion``.
+
+Then, typing:
+
+.. code-block:: bash
+
    $ ci unix_cov<tab>
 
 This will complete the ci step name to ``unix_coverage_``.
diff --git a/tools/ci.sh b/tools/ci.sh
index 63eed15be..fa7a529b2 100755
--- a/tools/ci.sh
+++ b/tools/ci.sh
@@ -1049,6 +1049,14 @@ function _ci_bash_completion {
     echo "alias ci=\"$(readlink -f "$0")\"; complete -W '$(grep '^function ci_' $0 | awk '{print $2}' | sed 's/^ci_//')' ci"
 }
 
+function _ci_zsh_completion {
+    echo "alias ci=\"$(readlink -f "$0"\"); _complete_mpy_ci_zsh() { compadd $(grep '^function ci_' $0 | awk '{sub(/^ci_/,"",$2); print $2}' | tr '\n' ' ') }; autoload -Uz compinit; compinit; compdef _complete_mpy_ci_zsh $(readlink -f "$0")"
+}
+
+function _ci_fish_completion {
+    echo "alias ci=\"$(readlink -f "$0"\"); complete -c ci -p $(readlink -f "$0") -f -a '$(grep '^function ci_' $(readlink -f "$0") | awk '{sub(/^ci_/,"",$2); print $2}' | tr '\n' ' ')'"
+}
+
 function _ci_main {
     case "$1" in
         (-h|-?|--help)
@@ -1057,6 +1065,12 @@ function _ci_main {
         (--bash-completion)
             _ci_bash_completion
         ;;
+        (--zsh-completion)
+            _ci_zsh_completion
+        ;;
+        (--fish-completion)
+            _ci_fish_completion
+        ;;
         (-*)
             echo "Unknown option: $1" 1>&2
             exit 1