51 lines
1.5 KiB
Lua
Executable File
51 lines
1.5 KiB
Lua
Executable File
#!/usr/bin/env lua
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--
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-- Script to update the Git version stamp during build.
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-- This is called via the custom update_version_stamp target in
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-- src/nvim/CMakeLists.txt.
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--
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-- arg[1]: file in which to update the version string
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-- arg[2]: prefix to use always ("vX.Y.Z")
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local function die(msg)
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io.stderr:write(string.format('%s: %s\n', arg[0], msg))
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-- No error, fall back to using generated "-dev" version.
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os.exit(0)
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end
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if #arg ~= 2 then
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die(string.format("Expected two args, got %d", #arg))
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end
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local versiondeffile = arg[1]
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local prefix = arg[2]
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local described = io.popen('git describe --dirty'):read('*l')
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if not described then
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described = io.popen('git describe --tags --always --dirty'):read('*l')
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end
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if not described then
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io.open(versiondeffile, 'w'):write('\n')
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die('git-describe failed, using empty include file.')
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end
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-- `git describe` annotates the most recent tagged release; for pre-release
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-- builds we must replace that with the unreleased version.
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local with_prefix = described:gsub("^v%d+%.%d+%.%d+", prefix)
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if described == with_prefix then
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-- Prepend the prefix always, e.g. with "nightly-12208-g4041b62b9".
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with_prefix = prefix .. "-" .. described
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end
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-- Read existing include file.
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local current = io.open(versiondeffile, 'r')
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if current then
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current = current:read('*l')
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end
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-- Write new include file, if different.
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local new = '#define NVIM_VERSION_MEDIUM "'..with_prefix..'"'
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if current ~= new then
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io.open(versiondeffile, 'w'):write(new .. '\n')
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end
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