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From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org
Cc: jolsa@kernel.org, kim.phillips@arm.com,
	linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: [PATCH v4 2/8] tools, pager: Support overwriting the pager
Date: Thu, 13 Sep 2018 20:10:32 -0700	[thread overview]
Message-ID: <20180914031038.4160-3-andi@firstfloor.org> (raw)
In-Reply-To: <20180914031038.4160-1-andi@firstfloor.org>

From: Andi Kleen <ak@linux.intel.com>

Add an interface to the auto pager code that allows callers
to overwrite the pager.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/lib/subcmd/pager.c | 11 ++++++++++-
 tools/lib/subcmd/pager.h |  1 +
 2 files changed, 11 insertions(+), 1 deletion(-)

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 */
-- 
2.17.1


  parent reply	other threads:[~2018-09-14  3:11 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-14  3:10 Make perf script easier to use for itrace Andi Kleen
2018-09-14  3:10 ` [PATCH v4 1/8] perf tools: Report itrace options in help Andi Kleen
2018-09-26  8:43   ` [tip:perf/core] " tip-bot for Andi Kleen
2018-09-14  3:10 ` Andi Kleen [this message]
2018-09-14  3:10 ` [PATCH v4 3/8] tools, perf, script: Add --insn-trace for instruction decoding Andi Kleen
2018-09-14  3:10 ` [PATCH v4 4/8] perf, tools, script: Allow sym and dso without ip, addr Andi Kleen
2018-09-14  3:10 ` [PATCH v4 5/8] perf, tools, script: Print DSO for callindent Andi Kleen
2018-09-14  3:10 ` [PATCH v4 6/8] perf, tools, script: Make itrace script default to all calls Andi Kleen
2018-09-14  3:10 ` [PATCH v4 7/8] tools, perf, script: Add --call-trace and --call-ret-trace Andi Kleen
2018-09-14  3:10 ` [PATCH v4 8/8] tools, perf, script: Implement --graph-function Andi Kleen
  -- strict thread matches above, loose matches on Subject: below --
2018-09-03 16:22 Make perf script easier to use for itrace Andi Kleen
2018-09-03 16:22 ` [PATCH v4 2/8] tools, pager: Support overwriting the pager Andi Kleen

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