[PATCH 09/13] perf tools: Add the bash completion for listing subsubcommands of perf script

[Yunlong Song]

The bash completion does not support listing subsubcommands for 'perf
script <TAB>', so fix it.

Example:

Before this patch:

 $ perf script <TAB>
 $

As shown above, the subsubcommands of perf script does not come out.

After this patch:

 $ perf script <TAB>
 record  report

As shown above, the subsubcommands of perf script can come out now.

Signed-off-by: Yunlong Song <yunlong.s...@huawei.com>
---
 tools/perf/builtin-script.c   | 5 +++--
 tools/perf/perf-completion.sh | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index c7e6750..f2a348b 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1572,7 +1572,8 @@ int cmd_script(int argc, const char **argv, const char 
*prefix __maybe_unused)
                    "Show the mmap events"),
        OPT_END()
        };
-       const char * const script_usage[] = {
+       const char * const script_subcommands[] = { "record", "report", NULL };
+       const char *script_usage[] = {
                "perf script [<options>]",
                "perf script [<options>] record <script> [<record-options>] 
<command>",
                "perf script [<options>] report <script> [script-args]",
@@ -1586,7 +1587,7 @@ int cmd_script(int argc, const char **argv, const char 
*prefix __maybe_unused)
 
        setup_scripting();
 
-       argc = parse_options(argc, argv, options, script_usage,
+       argc = parse_options_subcommand(argc, argv, options, 
script_subcommands, script_usage,
                             PARSE_OPT_STOP_AT_NON_OPTION);
 
        file.path = input_name;
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index dbca6a6..8739a13 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -143,7 +143,7 @@ __perf_main ()
                __perfcomp_colon "$evts" "$cur"
        else
                # List subcommands for perf commands
-               if [[ $prev_skip_opts == @(kvm|kmem|mem|lock|sched|data|help) 
]]; then
+               if [[ $prev_skip_opts == 
@(kvm|kmem|mem|lock|sched|data|help|script) ]]; then
                        subcmds=$($cmd $prev_skip_opts --list-cmds)
                        __perfcomp_colon "$subcmds" "$cur"
                fi
-- 
1.8.5.2

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