github: new module for upstream provider

2 files changed, 79 insertions, 0 deletions

diff --git a/aports-vercmp b/aports-vercmp
index 5199fec..c5eefad 100755
--- a/aports-vercmp
+++ b/aports-vercmp
@@ -3,6 +3,7 @@
 
 upstream_providers = {
 	(require("upstream.gnome")),
+	(require("upstream.github")),
 	(require("upstream.archlinux")),
 }
 
diff --git a/upstream/github.lua b/upstream/github.lua
new file mode 100644
index 0000000..f2bb16a
--- /dev/null
+++ b/upstream/github.lua
@@ -0,0 +1,78 @@
+
+
+https = require("ssl.https")
+json = require("cjson")
+ml = require("ml")
+apk = require("apk")
+
+local M = {}
+--[[
+github api only lets us only do 60 requests per hour, and potensially
+5000 if we register an application key. Instead of messing with oauth
+we simply parse the html for now
+local function find_newer(self)
+	local tagsurl = ("https://api.github.com/repos/%s/tags"):format(self.project)
+	print(("DEBUG: %s: github: %s"):format(self.pkg.pkgname, self.project))
+	local jsondata, status = assert(https.request(tagsurl))
+	local t
+	if jsondata then
+		t = json.decode(jsondata)
+	end
+	if status ~= 200 then
+		print(("github api error: %i\n  url: %s\n  message: %s\n  doc: %s\n"):format(status, tagsurl, t.message, t.documentation_url))
+		return nil
+	end
+	local latest = oldver or "0"
+	for k,v in pairs(t) do
+		print("DEBUG: github:", k, v.name)
+		if apk.version_compare(k, latest) == ">" then
+			latest = k
+		end
+	end
+	if latest == oldver then
+		latest = nil
+	end
+	return latest
+end
+]]--
+
+local function find_newer(self)
+	local releasesurl = ("https://github.com/%s/releases"):format(self.project)
+	print(("DEBUG: %s: github: %s"):format(self.pkg.pkgname, self.project))
+	local data, status = assert(https.request(releasesurl))
+	local latest = self.pkg.pkgver
+	for v in string.gmatch(data, ('a href="/%s/archive/v?([0-9a-z._-]+)%%.tar.gz"'):format(self.project)) do
+		for _,s in pairs{
+				{search="-rc", replace="_rc"},
+				{search="-beta", replace="_beta"},
+				{search="-alpha", replace="_alpha"},
+			} do
+			v = string.gsub(v, s.search, s.replace)
+		end
+		if apk.version_compare(v, latest) == ">" then
+			latest = v
+		end
+	end
+	if latest == self.pkg.pkgver then
+		latest = nil
+	end
+	return latest
+end
+
+function M.init(pkg)
+	for source in pkg:remote_sources() do
+		local project  = string.match(source,
+			".*::https://github.com/(.*)/archive/")
+		if project  then
+			return {
+				provider_name = "github",
+				find_newer = find_newer,
+				pkg = pkg,
+				project = project,
+			}
+		end
+	end
+	return nil
+end
+
+return M