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
|
#
#
# The Nim Compiler
# (c) Copyright 2015 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## Implements the new configuration system for Nim. Uses Nim as a scripting
## language.
import
ast, modules, idents, passes, passaux, condsyms,
options, nimconf, sem, semdata, llstream, vm, vmdef, commands, msgs,
os, times, osproc, wordrecg, strtabs, modulegraphs, lineinfos, pathutils
# we support 'cmpIgnoreStyle' natively for efficiency:
from strutils import cmpIgnoreStyle, contains
proc listDirs(a: VmArgs, filter: set[PathComponent]) =
let dir = getString(a, 0)
var result: seq[string] = @[]
for kind, path in walkDir(dir):
if kind in filter: result.add path
setResult(a, result)
proc setupVM*(module: PSym; cache: IdentCache; scriptName: string;
graph: ModuleGraph): PEvalContext =
# For Nimble we need to export 'setupVM'.
result = newCtx(module, cache, graph)
result.mode = emRepl
registerAdditionalOps(result)
let conf = graph.config
# captured vars:
var errorMsg: string
var vthisDir = scriptName.splitFile.dir
template cbconf(name, body) {.dirty.} =
result.registerCallback "stdlib.system." & astToStr(name),
proc (a: VmArgs) =
body
template cbexc(name, exc, body) {.dirty.} =
result.registerCallback "stdlib.system." & astToStr(name),
proc (a: VmArgs) =
errorMsg = ""
try:
body
except exc:
errorMsg = getCurrentExceptionMsg()
template cbos(name, body) {.dirty.} =
cbexc(name, OSError, body)
# Idea: Treat link to file as a file, but ignore link to directory to prevent
# endless recursions out of the box.
cbos listFiles:
listDirs(a, {pcFile, pcLinkToFile})
cbos listDirs:
listDirs(a, {pcDir})
cbos removeDir:
os.removeDir getString(a, 0)
cbos removeFile:
os.removeFile getString(a, 0)
cbos createDir:
os.createDir getString(a, 0)
result.registerCallback "stdlib.system.getError",
proc (a: VmArgs) = setResult(a, errorMsg)
cbos setCurrentDir:
os.setCurrentDir getString(a, 0)
cbos getCurrentDir:
setResult(a, os.getCurrentDir())
cbos moveFile:
os.moveFile(getString(a, 0), getString(a, 1))
cbos moveDir:
os.moveDir(getString(a, 0), getString(a, 1))
cbos copyFile:
os.copyFile(getString(a, 0), getString(a, 1))
cbos copyDir:
os.copyDir(getString(a, 0), getString(a, 1))
cbos getLastModificationTime:
setResult(a, getLastModificationTime(getString(a, 0)).toUnix)
cbos findExe:
setResult(a, os.findExe(getString(a, 0)))
cbos rawExec:
setResult(a, osproc.execCmd getString(a, 0))
cbconf getEnv:
setResult(a, os.getEnv(a.getString 0, a.getString 1))
cbconf existsEnv:
setResult(a, os.existsEnv(a.getString 0))
cbconf putEnv:
os.putEnv(a.getString 0, a.getString 1)
cbconf delEnv:
os.delEnv(a.getString 0)
cbconf dirExists:
setResult(a, os.dirExists(a.getString 0))
cbconf fileExists:
setResult(a, os.fileExists(a.getString 0))
cbconf projectName:
setResult(a, conf.projectName)
cbconf projectDir:
setResult(a, conf.projectPath.string)
cbconf projectPath:
setResult(a, conf.projectFull.string)
cbconf thisDir:
setResult(a, vthisDir)
cbconf put:
options.setConfigVar(conf, getString(a, 0), getString(a, 1))
cbconf get:
setResult(a, options.getConfigVar(conf, a.getString 0))
cbconf exists:
setResult(a, options.existsConfigVar(conf, a.getString 0))
cbconf nimcacheDir:
setResult(a, options.getNimcacheDir(conf).string)
cbconf paramStr:
setResult(a, os.paramStr(int a.getInt 0))
cbconf paramCount:
setResult(a, os.paramCount())
cbconf cmpIgnoreStyle:
setResult(a, strutils.cmpIgnoreStyle(a.getString 0, a.getString 1))
cbconf cmpIgnoreCase:
setResult(a, strutils.cmpIgnoreCase(a.getString 0, a.getString 1))
cbconf setCommand:
conf.command = a.getString 0
let arg = a.getString 1
incl(conf.globalOptions, optWasNimscript)
if arg.len > 0:
conf.projectName = arg
let path =
if conf.projectName.isAbsolute: AbsoluteFile(conf.projectName)
else: conf.projectPath / RelativeFile(conf.projectName)
try:
conf.projectFull = canonicalizePath(conf, path)
except OSError:
conf.projectFull = path
cbconf getCommand:
setResult(a, conf.command)
cbconf switch:
processSwitch(a.getString 0, a.getString 1, passPP, module.info, conf)
cbconf hintImpl:
processSpecificNote(a.getString 0, wHint, passPP, module.info,
a.getString 1, conf)
cbconf warningImpl:
processSpecificNote(a.getString 0, wWarning, passPP, module.info,
a.getString 1, conf)
cbconf patchFile:
let key = a.getString(0) & "_" & a.getString(1)
var val = a.getString(2).addFileExt(NimExt)
if {'$', '~'} in val:
val = pathSubs(conf, val, vthisDir)
elif not isAbsolute(val):
val = vthisDir / val
conf.moduleOverrides[key] = val
cbconf selfExe:
setResult(a, os.getAppFilename())
cbconf cppDefine:
options.cppDefine(conf, a.getString(0))
cbexc stdinReadLine, EOFError:
setResult(a, "")
setResult(a, stdin.readLine())
cbexc stdinReadAll, EOFError:
setResult(a, "")
setResult(a, stdin.readAll())
proc runNimScript*(cache: IdentCache; scriptName: AbsoluteFile;
freshDefines=true; conf: ConfigRef) =
rawMessage(conf, hintConf, scriptName.string)
let oldSymbolFiles = conf.symbolFiles
conf.symbolFiles = disabledSf
let graph = newModuleGraph(cache, conf)
connectCallbacks(graph)
if freshDefines: initDefines(conf.symbols)
defineSymbol(conf.symbols, "nimscript")
defineSymbol(conf.symbols, "nimconfig")
registerPass(graph, semPass)
registerPass(graph, evalPass)
conf.searchPaths.add(conf.libpath)
var m = graph.makeModule(scriptName)
incl(m.flags, sfMainModule)
graph.vm = setupVM(m, cache, scriptName.string, graph)
graph.compileSystemModule() # TODO: see why this unsets hintConf in conf.notes
discard graph.processModule(m, llStreamOpen(scriptName, fmRead))
# ensure we load 'system.nim' again for the real non-config stuff!
resetSystemArtifacts(graph)
# do not remove the defined symbols
#initDefines()
undefSymbol(conf.symbols, "nimscript")
undefSymbol(conf.symbols, "nimconfig")
conf.symbolFiles = oldSymbolFiles
|