76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
/*-------------------------------------------------------------------------
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*
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* bash_handler.c
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*
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* Bash script handler module of Postgres-XC configuration and operation tool.
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*
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* Copyright (c) 2013 Postgres-XC Development Group
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*
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*-------------------------------------------------------------------------
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include "bash_handler.h"
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#include "config.h"
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#include "pgxc_ctl.h"
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#include "pgxc_ctl_log.h"
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extern char* pgxc_ctl_bash_script[];
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extern char* pgxc_ctl_conf_prototype[];
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/*
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* Install bash script.
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*/
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void install_pgxc_ctl_bash(char* path)
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{
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char cmd[1024];
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FILE* pgxc_ctl_bash = fopen(path, "w");
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int i;
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elog(NOTICE, "Installing pgxc_ctl_bash script as %s.\n", path);
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if (!pgxc_ctl_bash) {
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elog(ERROR, "ERROR: Could not open pgxc_ctl bash script, %s, %s\n", path, strerror(errno));
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}
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for (i = 0; pgxc_ctl_conf_prototype[i]; i++)
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fprintf(pgxc_ctl_bash, "%s\n", pgxc_ctl_conf_prototype[i]);
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for (i = 0; pgxc_ctl_bash_script[i]; i++)
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fprintf(pgxc_ctl_bash, "%s\n", pgxc_ctl_bash_script[i]);
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fclose(pgxc_ctl_bash);
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sprintf(cmd, "chmod +x %s", path);
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system(cmd);
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}
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/*
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* Uninstall bash script.
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*/
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void uninstall_pgxc_ctl_bash(char* path)
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{
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if (path)
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unlink(path);
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}
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/*
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* Run the bash script and read its output, which consists of variables needed to configure
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* postgres-xc cluster in pgxc_ctl.
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*
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* Be careful that pgxc_ctl changes its working directory to pgxc home directory,
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* typically $HOME/pgxc_ctl, which can be changed with pgxc_ctl options.
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* See pgxc_ctl.c or pgxc_ctl document for details.
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*/
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void read_config_file(char* path, char* conf)
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{
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FILE* vars = NULL;
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char cmd[1024];
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if (conf)
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sprintf(cmd, "bash %s/pgxc_ctl_bash --configure %s print_values", path, conf);
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else
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sprintf(cmd, "bash %s/pgxc_ctl_bash print_values", path);
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vars = popen(cmd, "r");
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read_vars(vars);
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fclose(vars);
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}
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