1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
--
-- Embed the Lua scripts into src/host/scripts.c as static data buffers.
-- Embeds minified versions of the actual scripts by default, rather than
-- bytecode, as bytecodes are not portable to different architectures. Use
-- the `--bytecode` flag to override.
--
local scriptCount = 0
local function loadScript(fname)
fname = path.getabsolute(fname)
local f = io.open(fname, "rb")
local s = assert(f:read("*all"))
f:close()
return s
end
local function stripScript(s)
-- strip tabs
local result = s:gsub("[\t]", "")
-- strip any CRs
result = result:gsub("[\r]", "")
-- strip out block comments
result = result:gsub("[^\"']%-%-%[%[.-%]%]", "")
result = result:gsub("[^\"']%-%-%[=%[.-%]=%]", "")
result = result:gsub("[^\"']%-%-%[==%[.-%]==%]", "")
-- strip out inline comments
result = result:gsub("\n%-%-[^\n]*", "\n")
-- strip duplicate line feeds
result = result:gsub("\n+", "\n")
-- strip out leading comments
result = result:gsub("^%-%-[^\n]*\n", "")
return result
end
local function outputScript(result, script)
local data = script.data
local length = #data
if length > 0 then
script.table = string.format("builtin_script_%d", scriptCount)
scriptCount = scriptCount + 1
buffered.writeln(result, "// ".. script.name)
buffered.writeln(result, "static const unsigned char " .. script.table .. "[] = {")
for i = 1, length do
buffered.write(result, string.format("%3d, ", data:byte(i)))
if (i % 32 == 0) then
buffered.writeln(result)
end
end
buffered.writeln(result, "};")
buffered.writeln(result)
end
end
local function addScript(result, filename, name, data)
if not data then
if not path.hasextension(filename, ".lua") then
data = loadScript(filename)
elseif _OPTIONS["bytecode"] then
verbosef("Compiling... " .. filename)
local output = path.replaceextension(filename, ".luac")
local res, err = os.compile(filename, output);
if res ~= nil then
data = loadScript(output)
os.remove(output)
else
print(err)
print("Embedding source instead.")
data = stripScript(loadScript(filename))
end
else
data = stripScript(loadScript(filename))
end
end
local script = {}
script.filename = filename
script.name = name
script.data = data
table.insert(result, script)
end
-- Prepare the file header
local result = buffered.new()
buffered.writeln(result, "/* Premake's Lua scripts, as static data buffers for release mode builds */")
buffered.writeln(result, "/* DO NOT EDIT - this file is autogenerated - see BUILD.txt */")
buffered.writeln(result, "/* To regenerate this file, run: premake5 embed */")
buffered.writeln(result, "")
buffered.writeln(result, '#include "host/premake.h"')
buffered.writeln(result, "")
-- Find all of the _manifest.lua files within the project
local mask = path.join(_MAIN_SCRIPT_DIR, "**/_manifest.lua")
local manifests = os.matchfiles(mask)
-- Find all of the _user_modules.lua files within the project
local userModuleFiles = {}
userModuleFiles = table.join(userModuleFiles, os.matchfiles(path.join(_MAIN_SCRIPT_DIR, "**/_user_modules.lua")))
userModuleFiles = table.join(userModuleFiles, os.matchfiles(path.join(_MAIN_SCRIPT_DIR, "_user_modules.lua")))
-- Generate table of embedded content.
local contentTable = {}
local nativeTable = {}
print("Compiling... ")
for mi = 1, #manifests do
local manifestName = manifests[mi]
local manifestDir = path.getdirectory(manifestName)
local moduleName = path.getbasename(manifestDir)
local baseDir = path.getdirectory(manifestDir)
local files = dofile(manifests[mi])
for fi = 1, #files do
local filename = path.join(manifestDir, files[fi])
addScript(contentTable, filename, path.getrelative(baseDir, filename))
end
-- find native code in modules.
if moduleName ~= "src" then
local nativeFile = path.join(manifestDir, 'native', moduleName .. '.c')
if os.isfile(nativeFile) then
local pretty_name = moduleName:gsub("^%l", string.upper)
table.insert(nativeTable, pretty_name)
end
end
end
addScript(contentTable, path.join(_SCRIPT_DIR, "../src/_premake_main.lua"), "src/_premake_main.lua")
addScript(contentTable, path.join(_SCRIPT_DIR, "../src/_manifest.lua"), "src/_manifest.lua")
-- Add the list of modules
local modules = dofile("../src/_modules.lua")
for _, userModules in ipairs(userModuleFiles) do
modules = table.join(modules, dofile(userModules))
end
addScript(contentTable, "_modules.lua", "src/_modules.lua", "return {" .. table.implode(modules, '"', '"', ', ') .. "}")
-- Embed the actual script contents
print("Embedding...")
for mi = 1, #contentTable do
outputScript(result, contentTable[mi])
end
-- Generate an index of the script file names. Script names are stored
-- relative to the directory containing the manifest, i.e. the main
-- Xcode script, which is at $/modules/xcode/xcode.lua is stored as
-- "xcode/xcode.lua".
buffered.writeln(result, "const buildin_mapping builtin_scripts[] = {")
for mi = 1, #contentTable do
if contentTable[mi].table then
buffered.writeln(result, string.format('\t{"%s", %s, sizeof(%s)},', contentTable[mi].name, contentTable[mi].table, contentTable[mi].table))
else
buffered.writeln(result, string.format('\t{"%s", NULL, 0},', contentTable[mi].name))
end
end
buffered.writeln(result, "\t{NULL, NULL, 0}")
buffered.writeln(result, "};")
buffered.writeln(result, "")
-- write out the registerModules method.
for _, name in ipairs(nativeTable) do
buffered.writeln(result, string.format("extern void register%s(lua_State* L);", name))
end
buffered.writeln(result, "")
buffered.writeln(result, "void registerModules(lua_State* L)")
buffered.writeln(result, "{")
buffered.writeln(result, "\t(void)(L);")
for _, name in ipairs(nativeTable) do
buffered.writeln(result, string.format("\tregister%s(L);", name))
end
buffered.writeln(result, "}")
buffered.writeln(result, "")
-- Write it all out. Check against the current contents of scripts.c first,
-- and only overwrite it if there are actual changes.
print("Writing...")
local scriptsFile = path.getabsolute(path.join(_SCRIPT_DIR, "../src/scripts.c"))
local output = buffered.tostring(result)
local f, err = os.writefile_ifnotequal(output, scriptsFile);
if (f < 0) then
error(err, 0)
elseif (f > 0) then
printf("Generated %s...", path.getrelative(os.getcwd(), scriptsFile))
end
|
