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kumquat-buildroot/package/luarocks/0002-Buildroot-addon.patch
Francois Perrad f2b783a8f2 package/luarocks: fix generation of license file list in Buildroot addon 
check-package requires an hardtab instead of 4 spaces.

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2019-01-01 11:13:03 +01:00

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From c250ac86b8633a2d53c4d10a642f2304e2b2d148 Mon Sep 17 00:00:00 2001
From: Francois Perrad <francois.perrad@gadz.org>
Date: Sat, 27 Oct 2018 17:15:50 +0200
Subject: [PATCH] Add a Buildroot addon
This addon allows to generate a Buildroot package from a Luarocks one.
Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
---
src/bin/luarocks | 1 +
src/luarocks/addon/buildroot.lua | 326 +++++++++++++++++++++++++++++++
2 files changed, 327 insertions(+)
create mode 100644 src/luarocks/addon/buildroot.lua
diff --git a/src/bin/luarocks b/src/bin/luarocks
index d982530..53c7b0b 100755
--- a/src/bin/luarocks
+++ b/src/bin/luarocks
@@ -31,6 +31,7 @@ local commands = {
config = "luarocks.cmd.config",
which = "luarocks.cmd.which",
test = "luarocks.cmd.test",
+ buildroot = "luarocks.addon.buildroot",
}
cmd.run_command(description, commands, "luarocks.cmd.external", ...)
diff --git a/src/luarocks/addon/buildroot.lua b/src/luarocks/addon/buildroot.lua
new file mode 100644
index 0000000..606b94c
--- /dev/null
+++ b/src/luarocks/addon/buildroot.lua
@@ -0,0 +1,326 @@
+
+--- Module implementing the LuaRocks "buildroot" command.
+local buildroot = {}
+
+local dir = require("luarocks.dir")
+local fs = require("luarocks.fs")
+local util = require("luarocks.util")
+local queries = require("luarocks.queries")
+local search = require("luarocks.search")
+local download = require("luarocks.download")
+local fetch = require("luarocks.fetch")
+
+buildroot.help_summary = "generate buildroot package files of a rock."
+buildroot.help_arguments = "rockname [brname]"
+buildroot.help = [[
+This addon generates Buildroot package files of a rock.
+First argument is the name of a rock, the second argument is optional
+and needed when Buildroot uses another name (usually prefixed by lua-).
+Files are generated with the source content of the rock and more
+especially the rockspec. So, the rock is downloaded and unpacked.
+]]
+
+local function brname (name)
+ return name:upper():gsub('-', '_')
+end
+
+local function brlicense (license)
+ if license:match('MIT/X') then
+ return 'MIT'
+ end
+ return license
+end
+
+local function wrap (txt, max)
+ local lines = {}
+ local line = ''
+ for word in txt:gmatch('(%S+)') do
+ if line:len() + word:len() > max - 1 then
+ lines[#lines+1] = line
+ line = ''
+ end
+ if line == '' then
+ line = word
+ else
+ line = line .. ' ' .. word
+ end
+ end
+ lines[#lines+1] = line
+ return lines
+end
+
+local function get_external_dependencies (rockspec)
+ local t = {}
+ for k in pairs(rockspec.external_dependencies or {}) do
+ k = k:lower()
+ if fs.is_dir('package/' .. k) then
+ t[#t+1] = k
+ else
+ t[#t+1] = 'lib' .. k
+ if not fs.is_dir('package/lib' .. k) then
+ util.printout('unkwown external dependency: ' .. k)
+ end
+ end
+ end
+ table.sort(t)
+ return t
+end
+
+local function get_dependencies (rockspec)
+ local t = {}
+ for i = 1, #rockspec.dependencies do
+ local dep = tostring(rockspec.dependencies[i]):match('^(%S+)')
+ if dep ~= 'lua' then
+ dep = dep:gsub('_', '-')
+ if fs.is_dir('package/lua-' .. dep) then
+ t[#t+1] = 'lua-' .. dep
+ else
+ t[#t+1] = dep
+ if not fs.is_dir('package/' .. dep) then
+ util.printout('unkwown dependency: ' .. dep)
+ end
+ end
+ end
+ end
+ table.sort(t)
+ return t
+end
+
+function get_digest (file)
+ local absname = fs.absolute_name(file)
+ local pipe = io.popen('sha256sum ' .. fs.Q(absname))
+ local line = pipe:read('*l')
+ pipe:close()
+ local computed = line and line:match('(' .. ('%x'):rep(64) .. ')')
+ if computed then
+ return computed
+ else
+ return nil, "Failed to compute SHA256 hash for file " .. absname
+ end
+end
+
+local function generate_config (rockspec, lcname)
+ local ucname = brname(lcname)
+ local only_luajit = rockspec.package:match('^lj')
+ local summary = rockspec.description.summary
+ if not summary then
+ summary = '???'
+ elseif not summary:match('%.%s*$') then
+ summary = summary:gsub('%s*$', '.')
+ end
+ local homepage = rockspec.description.homepage or '???'
+ local external_dependencies = get_external_dependencies(rockspec)
+ local dependencies = get_dependencies(rockspec)
+ local fname = 'package/' .. lcname .. '/Config.in'
+ local f = assert(io.open(fname, 'w'))
+ util.printout('write ' .. fname)
+ f:write('config BR2_PACKAGE_' .. ucname .. '\n')
+ f:write('\tbool "' .. lcname .. '"\n')
+ if only_luajit then
+ f:write('\tdepends on BR2_PACKAGE_LUAJIT\n')
+ end
+ for i = 1, #external_dependencies do
+ f:write('\tselect BR2_PACKAGE_' .. brname(external_dependencies[i]) .. '\n')
+ end
+ for i = 1, #dependencies do
+ f:write('\tselect BR2_PACKAGE_' .. brname(dependencies[i]) .. ' # runtime\n')
+ end
+ f:write('\thelp\n')
+ f:write('\t ' .. table.concat(wrap(summary, 62), '\n\t ') .. '\n')
+ f:write('\n\t ' .. homepage .. '\n')
+ if only_luajit then
+ f:write('\ncomment "' .. lcname .. ' needs LuaJIT"\n')
+ f:write('\tdepends on !BR2_PACKAGE_LUAJIT\n')
+ end
+ f:close()
+end
+
+local function generate_mk (rockspec, lcname, licenses)
+ local function escape (s)
+ return s:gsub('-', '%%-'):gsub('%.', '%%.')
+ end
+
+ local ucname = brname(lcname)
+ local need_name_upstream = false
+ local need_version_upstream = false
+ local name_upstream = rockspec.package
+ local version = rockspec.version
+ local version_upstream = version:match('^([^-]+)-')
+ local revision = version:match('-(%d+)$')
+ local license = rockspec.description.license
+ local subdir = rockspec.source.dir
+ if subdir then
+ local root = subdir:match('^(.-)-' .. escape(version) .. '$')
+ if root then
+ subdir = root .. '-$(' .. ucname .. '_VERSION)'
+ end
+ root = subdir:match('^(.--[Vv])' .. escape(version_upstream) .. '$')
+ if root then
+ need_version_upstream = true
+ subdir = root .. '$(' .. ucname .. '_VERSION_UPSTREAM)'
+ end
+ root = subdir:match('^(.-)-' .. escape(version_upstream) .. '$')
+ if root then
+ if root == lcname then
+ subdir = nil
+ elseif root == name_upstream then
+ subdir = nil
+ need_name_upstream = true
+ else
+ need_version_upstream = true
+ subdir = root .. '-$(' .. ucname .. '_VERSION_UPSTREAM)'
+ end
+ end
+ end
+ local external_dependencies = get_external_dependencies(rockspec)
+ local fname = 'package/' .. lcname .. '/' .. lcname .. '.mk'
+ local f = assert(io.open(fname, 'w'))
+ util.printout('write ' .. fname)
+ f:write('################################################################################\n')
+ f:write('#\n')
+ f:write('# ' .. lcname .. '\n')
+ f:write('#\n')
+ f:write('################################################################################\n')
+ f:write('\n')
+ if need_version_upstream then
+ f:write(ucname .. '_VERSION_UPSTREAM = ' .. version_upstream .. '\n')
+ f:write(ucname .. '_VERSION = $(' .. ucname .. '_VERSION_UPSTREAM)-' .. revision .. '\n')
+ else
+ f:write(ucname .. '_VERSION = ' .. version .. '\n')
+ end
+ if lcname ~= name_upstream:lower() or need_name_upstream then
+ f:write(ucname .. '_NAME_UPSTREAM = ' .. name_upstream .. '\n')
+ end
+ if subdir then
+ f:write(ucname .. '_SUBDIR = ' .. subdir .. '\n')
+ end
+ if license then
+ f:write(ucname .. '_LICENSE = ' .. brlicense(license) .. '\n')
+ end
+ if #licenses == 1 then
+ f:write(ucname .. '_LICENSE_FILES = $(' .. ucname .. '_SUBDIR)/' .. licenses[1] .. '\n')
+ elseif #licenses > 1 then
+ f:write(ucname .. '_LICENSE_FILES =')
+ for i = 1, #licenses do
+ local file = licenses[i]
+ f:write(' \\\n\t$(' .. ucname .. '_SUBDIR)/' .. file)
+ end
+ f:write('\n')
+ end
+ if #external_dependencies > 0 then
+ f:write(ucname .. '_DEPENDENCIES = ' .. table.concat(external_dependencies, ' ') .. '\n')
+ end
+ f:write('\n$(eval $(luarocks-package))\n')
+ f:close()
+end
+
+local function generate_hash (rockspec, lcname, rock_file, licenses, digest)
+ local subdir = rockspec.source.dir
+ local fname = 'package/' .. lcname .. '/' .. lcname .. '.hash'
+ local f = assert(io.open(fname, 'w'))
+ util.printout('write ' .. fname)
+ f:write('# computed by luarocks/buildroot\n')
+ f:write('sha256 ' .. digest[rock_file] .. ' ' .. rock_file .. '\n')
+ for i = 1, #licenses do
+ local file = licenses[i]
+ f:write('sha256 ' .. digest[file] .. ' ' .. subdir .. '/' .. file .. '\n')
+ end
+ f:close()
+end
+
+--- Driver function for the "buildroot" command.
+-- @param rockname string: the name of a rock to be fetched and unpacked.
+-- @param brname string: the name used by Buildroot (optional)
+-- @return boolean: true if successful
+function buildroot.command(flags, rockname, fsname)
+ if type(rockname) ~= 'string' then
+ return nil, "Argument missing. "..util.see_help('buildroot')
+ end
+ fsname = fsname or rockname
+ assert(type(fsname) == 'string')
+
+ local query = queries.new(rockname:lower(), nil, false, 'src')
+ local url, err = search.find_suitable_rock(query)
+ if not url then
+ return nil, "Could not find a result named " .. tostring(query) .. ": " .. err
+ end
+ local rock_file = dir.base_name(url)
+
+ local temp_dir, err = fs.make_temp_dir(rockname)
+ if not temp_dir then
+ return nil, "Failed creating temporary dir: " .. err
+ end
+ local ok, err = fs.change_dir(temp_dir)
+ if not ok then return nil, err end
+
+ ok = fs.download(url, rock_file, true)
+ if not ok then
+ return nil, "Failed downloading " .. url
+ end
+
+ local digest = {}
+ digest[rock_file], err = get_digest(rock_file)
+ if not digest[rock_file] then return nil, err end
+ ok, err = fs.unzip(rock_file)
+ if not ok then return nil, err end
+
+ local rockspec_file = rock_file:gsub('%.src%.rock$', '.rockspec')
+ local rockspec, err = fetch.load_rockspec(rockspec_file)
+ if not rockspec then
+ return nil, "Error loading rockspec: " .. err
+ end
+ if rockspec.source.file then
+ ok, err = fs.unpack_archive(rockspec.source.file)
+ if not ok then return nil, err end
+ end
+
+ if rockspec.source.dir ~= '.' then
+ fs.copy(rockspec.local_abs_filename, rockspec.source.dir, 'read')
+ end
+
+ local build_type = rockspec.build.type
+ if build_type ~= 'none' and build_type ~= 'builtin' and build_type ~= 'module' then
+ util.printout('[' .. rockspec.package .. "] build_type '" .. build_type .. "' not supported")
+ end
+
+ local licenses = {}
+ ok, err = fs.change_dir(rockspec.source.dir)
+ if not ok then return nil, err end
+ local files = fs.find()
+ for i = 1, #files do
+ local v = files[i]
+ if v == 'COPYING'
+ or v == 'COPYRIGHT'
+ or v:match('^LICENSE') then
+ licenses[#licenses+1] = v
+ digest[v], err = get_digest(v)
+ if not digest[v] then return nil, err end
+ end
+ end
+ if #licenses == 0 then
+ for i = 1, #files do
+ local v = files[i]
+ if v:match('^doc/LICENSE')
+ or v:match('^doc/license')
+ or v:match('^doc/us/license') then
+ licenses[#licenses+1] = v
+ digest[v], err = get_digest(v)
+ if not digest[v] then return nil, err end
+ end
+ end
+ end
+ fs.pop_dir()
+ table.sort(licenses)
+
+ fs.pop_dir()
+ ok, err = fs.make_dir('package/' .. fsname:lower())
+ if not ok then return nil, err end
+
+ generate_config(rockspec, fsname:lower())
+ generate_mk(rockspec, fsname:lower(), licenses)
+ generate_hash(rockspec, fsname:lower(), rock_file, licenses, digest)
+
+ return true
+end
+
+return buildroot
--
2.17.1
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