wp2git/wp2git.d

107 lines
3.4 KiB
D

// Written in the D Programming Language (version 2)
import std.stdio;
import std.process;
import std.stream;
import std.string;
import std.file;
import std.conv;
import std.uri;
import std.getopt;
import std.exception;
import ae.utils.xmllite;
int main(string[] args)
{
string language="en";
bool usage, noImport, keepHistory;
getopt(args,
"h|help", &usage,
"keep-history", &keepHistory,
"no-import", &noImport,
"language", &language,
);
enforce(args.length<=2, "Multiple article name arguments");
if (args.length == 1 || usage)
{
stderr.writefln("Usage: %s Article_name [OPTION]...", args[0]);
stderr.writefln("Create a git repository with the history of the specified Wikipedia article.");
stderr.writefln("Supported options:");
stderr.writefln(" -h --help Display this help");
stderr.writefln(" --keep-history Don't delete history.xml");
stderr.writefln(" --no-import Don't invoke ``git fast-import'' and only");
stderr.writefln(" generate the fast-import data");
stderr.writefln(" --language LANG Specify the Wikipedia language subdomain (default: en)");
return 2;
}
enforce(args.length==2, "No article specified");
auto name = args[1];
if (!exists("history.xml"))
enforce(spawnvp(P_WAIT, "curl", ["curl", "-d", "\"\"", "http://" ~ language ~ ".wikipedia.org/w/index.php?title=Special:Export&pages=" ~ encodeComponent(name), "-o", "history.xml"])==0, "curl error");
stderr.writefln("Loading history...");
string xmldata = cast(string) read("history.xml");
if (!keepHistory) std.file.remove("history.xml");
auto xml = new XmlDocument(xmldata);
string data = "reset refs/heads/master\n";
auto page = xml[0]["page"];
enforce(page, "No such page");
foreach (child; page)
if (child.tag=="revision")
{
string id = child["id"].text;
string summary = child.findChild("comment") ? child["comment"].text : null;
string committer = child["contributor"].findChild("username") ? child["contributor"]["username"].text : child["contributor"]["ip"].text;
string text = child["text"].text;
stderr.writefln(" >> Revision %s by %s: %s", id, committer, summary);
summary ~= "\n\nhttp://" ~ language ~ ".wikipedia.org/w/index.php?oldid=" ~ id;
data ~=
"commit refs/heads/master\n" ~
"committer " ~ committer ~ " <" ~ committer ~ "@" ~ language ~ ".wikipedia.org> " ~ ISO8601toRFC2822(child["timestamp"].text) ~ "\n" ~
"data " ~ to!string(summary.length) ~ "\n" ~
summary ~ "\n" ~
"M 644 inline " ~ sanitizeFn(name) ~ ".txt\n" ~
"data " ~ to!string(text.length) ~ "\n" ~
text ~ "\n" ~
"\n";
}
std.file.write("fast-import-data", data);
if (noImport)
return 0;
enforce(!exists(".git"), "A git repository already exists here!");
system("git init");
system("git fast-import --date-format=rfc2822 < fast-import-data");
std.file.remove("fast-import-data");
system("git reset --hard");
return 0;
}
string ISO8601toRFC2822(string s)
{
const monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
// 2010-06-15T19:28:44Z
// Feb 6 11:22:18 2007 -0500
return monthNames[.to!int(s[5..7])-1] ~ " " ~ s[8..10] ~ " " ~ s[11..13] ~ ":" ~ s[14..16] ~ ":" ~ s[17..19] ~ " " ~ s[0..4] ~ " +0000";
}
string sanitizeFn(string s)
{
static const string forbidden = `?*<>|:\/"`;
auto copy = s.dup;
foreach (ref c; copy)
if (forbidden.indexOf(c) >= 0)
c = '_';
return assumeUnique(copy);
}