[PATCH 01/12] Move term_columns() to pager.c

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 cache.h |    1 +
 help.c  |   22 ----------------------
 pager.c |   23 +++++++++++++++++++++++
 3 files changed, 24 insertions(+), 22 deletions(-)

diff --git a/cache.h b/cache.h
index 89f6a40..124f100 100644
--- a/cache.h
+++ b/cache.h
@@ -985,6 +985,7 @@ extern void setup_pager(void);
 extern const char *pager_program;
 extern int pager_in_use(void);
 extern int pager_use_color;
+extern int term_columns();
 
 extern const char *editor_program;
 extern const char *excludes_file;
diff --git a/help.c b/help.c
index 7f4928e..888bf8c 100644
--- a/help.c
+++ b/help.c
@@ -4,28 +4,6 @@
 #include "levenshtein.h"
 #include "help.h"
 
-/* most GUI terminals set COLUMNS (although some don't export it) */
-static int term_columns(void)
-{
-	char *col_string = getenv("COLUMNS");
-	int n_cols;
-
-	if (col_string && (n_cols = atoi(col_string)) > 0)
-		return n_cols;
-
-#ifdef TIOCGWINSZ
-	{
-		struct winsize ws;
-		if (!ioctl(1, TIOCGWINSZ, &ws)) {
-			if (ws.ws_col)
-				return ws.ws_col;
-		}
-	}
-#endif
-
-	return 80;
-}
-
 void add_cmdname(struct cmdnames *cmds, const char *name, int len)
 {
 	struct cmdname *ent = xmalloc(sizeof(*ent) + len + 1);
diff --git a/pager.c b/pager.c
index dac358f..fc6c3e0 100644
--- a/pager.c
+++ b/pager.c
@@ -12,6 +12,7 @@
  */
 
 static int spawned_pager;
+static int max_columns;
 
 #ifndef WIN32
 static void pager_preexec(void)
@@ -116,3 +117,25 @@ int pager_in_use(void)
 	env = getenv("GIT_PAGER_IN_USE");
 	return env ? git_config_bool("GIT_PAGER_IN_USE", env) : 0;
 }
+
+int term_columns()
+{
+	char *col_string = getenv("COLUMNS");
+	int n_cols;
+
+	if (col_string && (n_cols = atoi(col_string)) > 0)
+		return n_cols;
+
+	else if (spawned_pager && max_columns)
+		return max_columns;
+#ifdef TIOCGWINSZ
+	else {
+		struct winsize ws;
+		if (!ioctl(1, TIOCGWINSZ, &ws)) {
+			if (ws.ws_col)
+				return ws.ws_col;
+		}
+	}
+#endif
+	return 80;
+}
-- 
1.7.0.1.370.gd3c5