55 lines
1.9 KiB
Lua
55 lines
1.9 KiB
Lua
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--- Fetch back-end for retrieving sources from GIT.
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module("luarocks.fetch.git", package.seeall)
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local fs = require("luarocks.fs")
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local dir = require("luarocks.dir")
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local util = require("luarocks.util")
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--- Download sources for building a rock, using git.
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-- @param rockspec table: The rockspec table
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-- @param extract boolean: Unused in this module (required for API purposes.)
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-- @param dest_dir string or nil: If set, will extract to the given directory.
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-- @return (string, string) or (nil, string): The absolute pathname of
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-- the fetched source tarball and the temporary directory created to
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-- store it; or nil and an error message.
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function get_sources(rockspec, extract, dest_dir)
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assert(type(rockspec) == "table")
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assert(type(dest_dir) == "string" or not dest_dir)
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local name_version = rockspec.name .. "-" .. rockspec.version
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local module = dir.base_name(rockspec.source.url)
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-- Strip off .git from base name if present
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module = module:gsub("%.git$", "")
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local command = {"git", "clone", rockspec.source.url, module}
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local checkout_command
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local tag_or_branch = rockspec.source.tag or rockspec.source.branch
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if tag_or_branch then
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checkout_command = {"git", "checkout", tag_or_branch}
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end
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local store_dir
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if not dest_dir then
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store_dir = fs.make_temp_dir(name_version)
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if not store_dir then
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return nil, "Failed creating temporary directory."
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end
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util.schedule_function(fs.delete, store_dir)
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else
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store_dir = dest_dir
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end
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fs.change_dir(store_dir)
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if not fs.execute(unpack(command)) then
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return nil, "Failed fetching files from GIT while cloning."
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end
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if checkout_command then
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fs.change_dir(module)
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if not fs.execute(unpack(checkout_command)) then
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return nil, "Failed fetching files from GIT while getting tag/branch."
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end
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fs.pop_dir()
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end
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fs.pop_dir()
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return module, store_dir
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end
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