Commit 47d2aef6 authored by Guillem Jover's avatar Guillem Jover

libdpkg: Add new command_get_pager() function

parent 30571124
......@@ -179,6 +179,27 @@ command_exec(struct command *cmd)
ohshite(_("unable to execute %s (%s)"), cmd->name, cmd->filename);
}
/**
* Get a suitable pager.
*
* @return A string representing a pager.
*/
const char *
command_get_pager(void)
{
const char *pager;
if (!isatty(1))
return CAT;
pager = getenv("PAGER");
if (str_is_unset(pager))
pager = DEFAULTPAGER;
return pager;
}
/**
* Execute a shell with a possible command.
*
......
......@@ -54,6 +54,7 @@ void command_add_args(struct command *cmd, ...) DPKG_ATTR_SENTINEL;
void command_exec(struct command *cmd) DPKG_ATTR_NORET;
const char *command_get_pager(void);
void command_shell(const char *cmd, const char *name);
/** @} */
......
......@@ -110,6 +110,7 @@ DPKG_BEGIN_DECLS
#define TAR "tar"
#define RM "rm"
#define CAT "cat"
#define FIND "find"
#define DIFF "diff"
......
......@@ -128,6 +128,7 @@ LIBDPKG_PRIVATE {
command_add_argv;
command_add_args;
command_exec;
command_get_pager;
command_shell;
command_destroy;
......
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