citra/src/common/scm_rev_gen.js

68 lines
2.1 KiB
JavaScript

var wshShell = new ActiveXObject("WScript.Shell")
var oFS = new ActiveXObject("Scripting.FileSystemObject");
var outfile = "scm_rev.cpp";
var cmd_revision = " rev-parse HEAD";
var cmd_describe = " describe --always --long --dirty";
var cmd_branch = " rev-parse --abbrev-ref HEAD";
function GetGitExe() {
for (var gitexe in { "git.cmd": 1, "git": 1 }) {
try {
wshShell.Exec(gitexe);
return gitexe;
} catch (e) {
}
}
WScript.Echo("Cannot find git or git.cmd, check your PATH:\n" +
wshShell.ExpandEnvironmentStrings("%PATH%"));
WScript.Quit(1);
}
function GetFirstStdOutLine(cmd) {
try {
return wshShell.Exec(cmd).StdOut.ReadLine();
} catch (e) {
// catch "the system cannot find the file specified" error
WScript.Echo("Failed to exec " + cmd + " this should never happen");
WScript.Quit(1);
}
}
function GetFileContents(f) {
try {
return oFS.OpenTextFile(f).ReadAll();
} catch (e) {
// file doesn't exist
return "";
}
}
// get info from git
var gitexe = GetGitExe();
var revision = GetFirstStdOutLine(gitexe + cmd_revision);
var describe = GetFirstStdOutLine(gitexe + cmd_describe);
var branch = GetFirstStdOutLine(gitexe + cmd_branch);
var isMaster = +("master" == branch);
// remove hash (and trailing "-0" if needed) from description
describe = describe.replace(/(-0)?-[^-]+(-dirty)?$/, '$2');
var out_contents =
"#include \"common/scm_rev.h\"\n" +
"namespace Common {\n" +
" const char g_scm_rev[] = \"" + revision + "\";\n" +
" const char g_scm_branch[] = \"" + branch + "\";\n" +
" const char g_scm_desc[] = \"" + describe + "\";\n" +
"}\n";
// check if file needs updating
if (out_contents == GetFileContents(outfile)) {
WScript.Echo(outfile + " current at " + describe);
} else {
// needs updating - writeout current info
oFS.CreateTextFile(outfile, true).Write(out_contents);
WScript.Echo(outfile + " updated to " + describe);
}