309 lines
6.1 KiB
C
309 lines
6.1 KiB
C
#include "git-compat-util.h"
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#include "config.h"
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#include "editor.h"
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#include "pager.h"
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#include "run-command.h"
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#include "sigchain.h"
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#include "alias.h"
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int pager_use_color = 1;
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#ifndef DEFAULT_PAGER
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#define DEFAULT_PAGER "less"
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#endif
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static struct child_process pager_process;
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static char *pager_program;
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static int old_fd1 = -1, old_fd2 = -1;
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/* Is the value coming back from term_columns() just a guess? */
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static int term_columns_guessed;
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static void close_pager_fds(void)
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{
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/* signal EOF to pager */
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close(1);
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if (old_fd2 != -1)
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close(2);
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}
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static void finish_pager(void)
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{
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fflush(stdout);
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fflush(stderr);
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close_pager_fds();
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finish_command(&pager_process);
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}
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static void wait_for_pager_atexit(void)
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{
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if (old_fd1 == -1)
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return;
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finish_pager();
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}
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void wait_for_pager(void)
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{
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if (old_fd1 == -1)
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return;
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finish_pager();
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sigchain_pop_common();
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unsetenv("GIT_PAGER_IN_USE");
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dup2(old_fd1, 1);
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close(old_fd1);
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old_fd1 = -1;
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if (old_fd2 != -1) {
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dup2(old_fd2, 2);
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close(old_fd2);
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old_fd2 = -1;
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}
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}
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static void wait_for_pager_signal(int signo)
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{
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if (old_fd1 == -1)
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return;
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close_pager_fds();
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finish_command_in_signal(&pager_process);
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sigchain_pop(signo);
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raise(signo);
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