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