diff options
| author | Andi Kleen <ak@linux.intel.com> | 2018-09-18 14:32:07 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-09-19 20:16:19 +0200 |
| commit | 03a1f49f26482cf832e7f0157ae5da716d927701 (patch) | |
| tree | 1fea29677b382df9bdc75af292fe9bf5c9ab673b /tools/lib/subcmd | |
| parent | perf tools: Report itrace options in help (diff) | |
| download | linux-03a1f49f26482cf832e7f0157ae5da716d927701.tar.xz linux-03a1f49f26482cf832e7f0157ae5da716d927701.zip | |
tools lib subcmd: Support overwriting the pager
Add an interface to the auto pager code that allows callers to overwrite
the pager.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20180918123214.26728-3-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/subcmd')
| -rw-r--r-- | tools/lib/subcmd/pager.c | 11 | ||||
| -rw-r--r-- | tools/lib/subcmd/pager.h | 1 |
2 files changed, 11 insertions, 1 deletions
diff --git a/tools/lib/subcmd/pager.c b/tools/lib/subcmd/pager.c index 9997a8805a82..e3d47b59b14d 100644 --- a/tools/lib/subcmd/pager.c +++ b/tools/lib/subcmd/pager.c @@ -23,6 +23,13 @@ void pager_init(const char *pager_env) subcmd_config.pager_env = pager_env; } +static const char *forced_pager; + +void force_pager(const char *pager) +{ + forced_pager = pager; +} + static void pager_preexec(void) { /* @@ -66,7 +73,9 @@ void setup_pager(void) const char *pager = getenv(subcmd_config.pager_env); struct winsize sz; - if (!isatty(1)) + if (forced_pager) + pager = forced_pager; + if (!isatty(1) && !forced_pager) return; if (ioctl(1, TIOCGWINSZ, &sz) == 0) pager_columns = sz.ws_col; diff --git a/tools/lib/subcmd/pager.h b/tools/lib/subcmd/pager.h index f1a53cf29880..a818964693ab 100644 --- a/tools/lib/subcmd/pager.h +++ b/tools/lib/subcmd/pager.h @@ -7,5 +7,6 @@ extern void pager_init(const char *pager_env); extern void setup_pager(void); extern int pager_in_use(void); extern int pager_get_columns(void); +extern void force_pager(const char *); #endif /* __SUBCMD_PAGER_H */ |