forked from lix-project/lix
Provide default pagers
Borrowed from systemd.
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851b47bd7d
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c56bfbe863
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@ -291,8 +291,9 @@ int handleExceptions(const string & programName, std::function<void()> fun)
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RunPager::RunPager()
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{
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string pager = getEnv("PAGER");
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if (!isatty(STDOUT_FILENO) || pager.empty()) return;
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if (!isatty(STDOUT_FILENO)) return;
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string pager = getEnv("PAGER", "default");
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if (pager == "" || pager == "cat") return;
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/* Ignore SIGINT. The pager will handle it (and we'll get
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SIGPIPE). */
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@ -312,7 +313,11 @@ RunPager::RunPager()
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throw SysError("dupping stdin");
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if (!getenv("LESS"))
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setenv("LESS", "FRSXMK", 1);
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execl("/bin/sh", "sh", "-c", pager.c_str(), NULL);
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if (pager != "default")
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execl("/bin/sh", "sh", "-c", pager.c_str(), NULL);
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execlp("pager", "pager", NULL);
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execlp("less", "less", NULL);
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execlp("more", "more", NULL);
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throw SysError(format("executing ‘%1%’") % pager);
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});
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