Merge branch 'dl/reset-doc-no-wrt-abbrev'

[thirdparty/git.git] / pager.c

diff --git a/pager.c b/pager.c
index 92b23e6cd1d44a26c86afeeb748ddc0aee3f9154..4168460ae92ceb18b4a31c4d0524b411231cf137 100644 (file)
--- a/pager.c
+++ b/pager.c
@@ -2,6 +2,7 @@
 #include "config.h"
 #include "run-command.h"
 #include "sigchain.h"
+#include "alias.h"
 
 #ifndef DEFAULT_PAGER
 #define DEFAULT_PAGER "less"
@@ -99,6 +100,7 @@ void prepare_pager_args(struct child_process *pager_process, const char *pager)
        argv_array_push(&pager_process->args, pager);
        pager_process->use_shell = 1;
        setup_pager_env(&pager_process->env_array);
+       pager_process->trace2_child_class = "pager";
 }
 
 void setup_pager(void)
@@ -109,10 +111,15 @@ void setup_pager(void)
                return;
 
        /*
-        * force computing the width of the terminal before we redirect
-        * the standard output to the pager.
+        * After we redirect standard output, we won't be able to use an ioctl
+        * to get the terminal size. Let's grab it now, and then set $COLUMNS
+        * to communicate it to any sub-processes.
         */
-       (void) term_columns();
+       {
+               char buf[64];
+               xsnprintf(buf, sizeof(buf), "%d", term_columns());
+               setenv("COLUMNS", buf, 0);
+       }
 
        setenv("GIT_PAGER_IN_USE", "true", 1);