Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 1 | package main |
| 2 | |
| 3 | import ( |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 4 | "bytes" |
Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 5 | "fmt" |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 6 | "io" |
Shinichiro Hamaji | e7aafb0 | 2015-04-09 18:23:46 +0900 | [diff] [blame] | 7 | "os" |
Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 8 | "os/exec" |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 9 | "path/filepath" |
Shinichiro Hamaji | 13b30d9 | 2015-04-03 14:42:21 +0900 | [diff] [blame] | 10 | "sort" |
Shinichiro Hamaji | e708a9d | 2015-04-03 14:34:35 +0900 | [diff] [blame] | 11 | "strconv" |
Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 12 | "strings" |
| 13 | ) |
| 14 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 15 | // TODO(ukai): move in var.go? |
Shinichiro Hamaji | cc919ae | 2015-04-09 17:23:30 +0900 | [diff] [blame] | 16 | type oldVar struct { |
| 17 | name string |
| 18 | value Var |
| 19 | } |
| 20 | |
| 21 | func newOldVar(ev *Evaluator, name string) oldVar { |
| 22 | return oldVar{ |
| 23 | name: name, |
| 24 | value: ev.outVars.Lookup(name), |
| 25 | } |
| 26 | } |
| 27 | |
| 28 | func (old oldVar) restore(ev *Evaluator) { |
| 29 | if old.value.IsDefined() { |
| 30 | ev.outVars.Assign(old.name, old.value) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 31 | return |
Shinichiro Hamaji | cc919ae | 2015-04-09 17:23:30 +0900 | [diff] [blame] | 32 | } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 33 | delete(ev.outVars, old.name) |
Shinichiro Hamaji | cc919ae | 2015-04-09 17:23:30 +0900 | [diff] [blame] | 34 | } |
| 35 | |
Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 36 | // Func is a make function. |
| 37 | // http://www.gnu.org/software/make/manual/make.html#Functions |
Fumitoshi Ukai | e520f26 | 2015-03-31 17:27:03 +0900 | [diff] [blame] | 38 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 39 | // Func is make builtin function. |
| 40 | type Func interface { |
| 41 | // Arity is max function's arity. |
| 42 | // ',' will not be handled as argument separator more than arity. |
| 43 | // 0 means varargs. |
| 44 | Arity() int |
| 45 | |
| 46 | // AddArg adds value as an argument. |
| 47 | AddArg(Value) |
| 48 | |
Fumitoshi Ukai | ebf945c | 2015-04-10 17:30:04 +0900 | [diff] [blame] | 49 | // SetString sets original string of the func. |
| 50 | SetString(string) |
| 51 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 52 | Value |
| 53 | } |
| 54 | |
| 55 | var ( |
| 56 | funcMap = map[string]func() Func{ |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 57 | "patsubst": func() Func { return &funcPatsubst{} }, |
| 58 | "strip": func() Func { return &funcStrip{} }, |
| 59 | "subst": func() Func { return &funcSubst{} }, |
| 60 | "findstring": func() Func { return &funcFindstring{} }, |
| 61 | "filter": func() Func { return &funcFilter{} }, |
| 62 | "filter-out": func() Func { return &funcFilterOut{} }, |
| 63 | "sort": func() Func { return &funcSort{} }, |
| 64 | "word": func() Func { return &funcWord{} }, |
| 65 | "wordlist": func() Func { return &funcWordlist{} }, |
| 66 | "words": func() Func { return &funcWords{} }, |
| 67 | "firstword": func() Func { return &funcFirstword{} }, |
| 68 | "lastword": func() Func { return &funcLastword{} }, |
| 69 | |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 70 | "join": func() Func { return &funcJoin{} }, |
| 71 | "wildcard": func() Func { return &funcWildcard{} }, |
| 72 | "dir": func() Func { return &funcDir{} }, |
| 73 | "notdir": func() Func { return &funcNotdir{} }, |
| 74 | "suffix": func() Func { return &funcSuffix{} }, |
| 75 | "basename": func() Func { return &funcBasename{} }, |
| 76 | "addsuffix": func() Func { return &funcAddsuffix{} }, |
| 77 | "addprefix": func() Func { return &funcAddprefix{} }, |
| 78 | "realpath": func() Func { return &funcRealpath{} }, |
| 79 | "abspath": func() Func { return &funcAbspath{} }, |
| 80 | |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 81 | "if": func() Func { return &funcIf{} }, |
| 82 | "and": func() Func { return &funcAnd{} }, |
| 83 | "or": func() Func { return &funcOr{} }, |
| 84 | |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 85 | "value": func() Func { return &funcValue{} }, |
| 86 | |
| 87 | "eval": func() Func { return &funcEval{} }, |
| 88 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 89 | "shell": func() Func { return &funcShell{} }, |
| 90 | "call": func() Func { return &funcCall{} }, |
| 91 | "foreach": func() Func { return &funcForeach{} }, |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 92 | |
| 93 | "origin": func() Func { return &funcOrigin{} }, |
| 94 | "flavor": func() Func { return &funcFlavor{} }, |
| 95 | "info": func() Func { return &funcInfo{} }, |
| 96 | "warning": func() Func { return &funcWarning{} }, |
| 97 | "error": func() Func { return &funcError{} }, |
Fumitoshi Ukai | 0b5e18b | 2015-04-03 22:57:17 +0900 | [diff] [blame] | 98 | } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 99 | ) |
| 100 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 101 | func assertArity(name string, req, n int) { |
| 102 | if n < req { |
| 103 | panic(fmt.Sprintf("*** insufficient number of arguments (%d) to function `%s'.", n, name)) |
| 104 | } |
| 105 | } |
| 106 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 107 | // A space separated values writer. |
| 108 | type ssvWriter struct { |
| 109 | w io.Writer |
| 110 | needsSpace bool |
| 111 | } |
| 112 | |
| 113 | func (sw *ssvWriter) Write(b []byte) { |
| 114 | if sw.needsSpace { |
| 115 | sw.w.Write([]byte{' '}) |
| 116 | } |
| 117 | sw.needsSpace = true |
| 118 | sw.w.Write(b) |
| 119 | } |
| 120 | |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 121 | func (sw *ssvWriter) WriteString(s string) { |
| 122 | // TODO: Ineffcient. Nice if we can remove the cast. |
| 123 | sw.Write([]byte(s)) |
| 124 | } |
| 125 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 126 | func numericValueForFunc(ev *Evaluator, v Value, funcName string, nth string) int { |
| 127 | a := bytes.TrimSpace(ev.Value(v)) |
| 128 | n, err := strconv.Atoi(string(a)) |
| 129 | if err != nil || n < 0 { |
| 130 | Error(ev.filename, ev.lineno, `*** non-numeric %s argument to "%s" function: "%s".`, nth, funcName, a) |
| 131 | } |
| 132 | return n |
| 133 | } |
| 134 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 135 | type fclosure struct { |
| 136 | args []Value |
Fumitoshi Ukai | ebf945c | 2015-04-10 17:30:04 +0900 | [diff] [blame] | 137 | expr string |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | func (c *fclosure) AddArg(v Value) { |
| 141 | c.args = append(c.args, v) |
Fumitoshi Ukai | 0b5e18b | 2015-04-03 22:57:17 +0900 | [diff] [blame] | 142 | } |
| 143 | |
Fumitoshi Ukai | ebf945c | 2015-04-10 17:30:04 +0900 | [diff] [blame] | 144 | func (c *fclosure) SetString(s string) { c.expr = s } |
| 145 | func (c *fclosure) String() string { return c.expr } |
Fumitoshi Ukai | 7878113 | 2015-04-10 17:08:40 +0900 | [diff] [blame] | 146 | |
Shinichiro Hamaji | 4125cf4 | 2015-04-03 11:42:28 +0900 | [diff] [blame] | 147 | // http://www.gnu.org/software/make/manual/make.html#Text-Functions |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 148 | type funcSubst struct{ fclosure } |
| 149 | |
| 150 | func (f *funcSubst) Arity() int { return 3 } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 151 | func (f *funcSubst) Eval(w io.Writer, ev *Evaluator) { |
| 152 | assertArity("subst", 3, len(f.args)) |
| 153 | from := ev.Value(f.args[0]) |
| 154 | to := ev.Value(f.args[1]) |
| 155 | text := ev.Value(f.args[2]) |
Fumitoshi Ukai | bb79a9d | 2015-04-02 12:46:54 +0900 | [diff] [blame] | 156 | Log("subst from:%q to:%q text:%q", from, to, text) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 157 | w.Write(bytes.Replace(text, from, to, -1)) |
| 158 | } |
| 159 | |
Shinichiro Hamaji | 98e910d | 2015-04-11 10:38:44 +0900 | [diff] [blame] | 160 | type funcPatsubst struct{ fclosure } |
| 161 | |
| 162 | func (f *funcPatsubst) Arity() int { return 3 } |
| 163 | func (f *funcPatsubst) Eval(w io.Writer, ev *Evaluator) { |
| 164 | assertArity("patsubst", 3, len(f.args)) |
| 165 | pat := ev.Value(f.args[0]) |
| 166 | repl := ev.Value(f.args[1]) |
| 167 | texts := splitSpacesBytes(ev.Value(f.args[2])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 168 | sw := ssvWriter{w: w} |
| 169 | for _, text := range texts { |
Shinichiro Hamaji | 98e910d | 2015-04-11 10:38:44 +0900 | [diff] [blame] | 170 | t := substPatternBytes(pat, repl, text) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 171 | sw.Write(t) |
Shinichiro Hamaji | 98e910d | 2015-04-11 10:38:44 +0900 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | |
| 175 | type funcStrip struct{ fclosure } |
| 176 | |
| 177 | func (f *funcStrip) Arity() int { return 1 } |
| 178 | func (f *funcStrip) Eval(w io.Writer, ev *Evaluator) { |
| 179 | assertArity("strip", 1, len(f.args)) |
| 180 | text := ev.Value(f.args[0]) |
| 181 | w.Write(bytes.TrimSpace(text)) |
| 182 | } |
| 183 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 184 | type funcFindstring struct{ fclosure } |
| 185 | |
| 186 | func (f *funcFindstring) Arity() int { return 2 } |
| 187 | func (f *funcFindstring) Eval(w io.Writer, ev *Evaluator) { |
| 188 | assertArity("findstring", 2, len(f.args)) |
| 189 | find := ev.Value(f.args[0]) |
| 190 | text := ev.Value(f.args[1]) |
| 191 | if bytes.Index(text, find) >= 0 { |
| 192 | w.Write(find) |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | type funcFilter struct{ fclosure } |
| 197 | |
| 198 | func (f *funcFilter) Arity() int { return 2 } |
| 199 | func (f *funcFilter) Eval(w io.Writer, ev *Evaluator) { |
| 200 | assertArity("filter", 2, len(f.args)) |
| 201 | patterns := splitSpacesBytes(ev.Value(f.args[0])) |
| 202 | texts := splitSpacesBytes(ev.Value(f.args[1])) |
| 203 | sw := ssvWriter{w: w} |
| 204 | for _, text := range texts { |
| 205 | for _, pat := range patterns { |
| 206 | if matchPatternBytes(pat, text) { |
| 207 | sw.Write(text) |
| 208 | } |
| 209 | } |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | type funcFilterOut struct{ fclosure } |
| 214 | |
| 215 | func (f *funcFilterOut) Arity() int { return 2 } |
| 216 | func (f *funcFilterOut) Eval(w io.Writer, ev *Evaluator) { |
| 217 | assertArity("filter-out", 2, len(f.args)) |
| 218 | patterns := splitSpacesBytes(ev.Value(f.args[0])) |
| 219 | texts := splitSpacesBytes(ev.Value(f.args[1])) |
| 220 | sw := ssvWriter{w: w} |
| 221 | Loop: |
| 222 | for _, text := range texts { |
| 223 | for _, pat := range patterns { |
| 224 | if matchPatternBytes(pat, text) { |
| 225 | continue Loop |
| 226 | } |
| 227 | } |
| 228 | sw.Write(text) |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | type funcSort struct{ fclosure } |
| 233 | |
| 234 | func (f *funcSort) Arity() int { return 1 } |
| 235 | func (f *funcSort) Eval(w io.Writer, ev *Evaluator) { |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 236 | assertArity("sort", 1, len(f.args)) |
| 237 | toks := splitSpaces(string(ev.Value(f.args[0]))) |
| 238 | sort.Strings(toks) |
| 239 | |
| 240 | // Remove duplicate words. |
| 241 | var prev string |
| 242 | sw := ssvWriter{w: w} |
| 243 | for _, tok := range toks { |
| 244 | if prev != tok { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 245 | sw.WriteString(tok) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 246 | prev = tok |
| 247 | } |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | type funcWord struct{ fclosure } |
| 252 | |
| 253 | func (f *funcWord) Arity() int { return 2 } |
| 254 | func (f *funcWord) Eval(w io.Writer, ev *Evaluator) { |
| 255 | assertArity("word", 2, len(f.args)) |
| 256 | index := numericValueForFunc(ev, f.args[0], "word", "first") |
| 257 | if index == 0 { |
| 258 | Error(ev.filename, ev.lineno, `*** first argument to "word" function must be greater than 0.`) |
| 259 | } |
| 260 | toks := splitSpacesBytes(ev.Value(f.args[1])) |
| 261 | if index-1 >= len(toks) { |
| 262 | return |
| 263 | } |
| 264 | w.Write(toks[index-1]) |
| 265 | } |
| 266 | |
| 267 | type funcWordlist struct{ fclosure } |
| 268 | |
| 269 | func (f *funcWordlist) Arity() int { return 3 } |
| 270 | func (f *funcWordlist) Eval(w io.Writer, ev *Evaluator) { |
| 271 | assertArity("wordlist", 3, len(f.args)) |
| 272 | si := numericValueForFunc(ev, f.args[0], "wordlist", "first") |
| 273 | if si == 0 { |
| 274 | Error(ev.filename, ev.lineno, `*** invalid first argument to "wordlist" function: %s`, f.args[0]) |
| 275 | } |
| 276 | ei := numericValueForFunc(ev, f.args[1], "wordlist", "second") |
| 277 | if ei == 0 { |
| 278 | Error(ev.filename, ev.lineno, `*** invalid second argument to "wordlist" function: %s`, f.args[1]) |
| 279 | } |
| 280 | |
| 281 | toks := splitSpacesBytes(ev.Value(f.args[2])) |
| 282 | if si-1 >= len(toks) { |
| 283 | return |
| 284 | } |
| 285 | if ei-1 >= len(toks) { |
| 286 | ei = len(toks) |
| 287 | } |
| 288 | |
| 289 | sw := ssvWriter{w: w} |
| 290 | for _, t := range toks[si-1 : ei] { |
| 291 | sw.Write(t) |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | type funcWords struct{ fclosure } |
| 296 | |
| 297 | func (f *funcWords) Arity() int { return 1 } |
| 298 | func (f *funcWords) Eval(w io.Writer, ev *Evaluator) { |
| 299 | assertArity("words", 1, len(f.args)) |
| 300 | toks := splitSpacesBytes(ev.Value(f.args[0])) |
| 301 | w.Write([]byte(strconv.Itoa(len(toks)))) |
| 302 | } |
| 303 | |
| 304 | type funcFirstword struct{ fclosure } |
| 305 | |
| 306 | func (f *funcFirstword) Arity() int { return 1 } |
| 307 | func (f *funcFirstword) Eval(w io.Writer, ev *Evaluator) { |
| 308 | assertArity("firstword", 1, len(f.args)) |
| 309 | toks := splitSpacesBytes(ev.Value(f.args[0])) |
| 310 | if len(toks) == 0 { |
| 311 | return |
| 312 | } |
| 313 | w.Write(toks[0]) |
| 314 | } |
| 315 | |
| 316 | type funcLastword struct{ fclosure } |
| 317 | |
| 318 | func (f *funcLastword) Arity() int { return 1 } |
| 319 | func (f *funcLastword) Eval(w io.Writer, ev *Evaluator) { |
| 320 | assertArity("lastword", 1, len(f.args)) |
| 321 | toks := splitSpacesBytes(ev.Value(f.args[0])) |
| 322 | if len(toks) == 0 { |
| 323 | return |
| 324 | } |
| 325 | w.Write(toks[len(toks)-1]) |
| 326 | } |
| 327 | |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 328 | // https://www.gnu.org/software/make/manual/html_node/File-Name-Functions.html#File-Name-Functions |
| 329 | |
| 330 | type funcJoin struct{ fclosure } |
| 331 | |
| 332 | func (f *funcJoin) Arity() int { return 2 } |
| 333 | func (f *funcJoin) Eval(w io.Writer, ev *Evaluator) { |
| 334 | assertArity("join", 2, len(f.args)) |
| 335 | list1 := splitSpacesBytes(ev.Value(f.args[0])) |
| 336 | list2 := splitSpacesBytes(ev.Value(f.args[1])) |
| 337 | sw := ssvWriter{w: w} |
| 338 | for i, v := range list1 { |
| 339 | if i < len(list2) { |
| 340 | sw.Write(v) |
| 341 | // Use |w| not to append extra ' '. |
| 342 | w.Write(list2[i]) |
| 343 | continue |
| 344 | } |
| 345 | sw.Write(v) |
| 346 | } |
| 347 | if len(list2) > len(list1) { |
| 348 | for _, v := range list2[len(list1):] { |
| 349 | sw.Write(v) |
| 350 | } |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | type funcWildcard struct{ fclosure } |
| 355 | |
| 356 | func (f *funcWildcard) Arity() int { return 1 } |
| 357 | func (f *funcWildcard) Eval(w io.Writer, ev *Evaluator) { |
| 358 | assertArity("wildcard", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 359 | sw := ssvWriter{w: w} |
| 360 | for _, pattern := range splitSpaces(string(ev.Value(f.args[0]))) { |
| 361 | files, err := filepath.Glob(pattern) |
| 362 | if err != nil { |
| 363 | panic(err) |
| 364 | } |
| 365 | for _, file := range files { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 366 | sw.WriteString(file) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 367 | } |
| 368 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 369 | } |
| 370 | |
| 371 | type funcDir struct{ fclosure } |
| 372 | |
| 373 | func (f *funcDir) Arity() int { return 1 } |
| 374 | func (f *funcDir) Eval(w io.Writer, ev *Evaluator) { |
| 375 | assertArity("dir", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 376 | names := splitSpaces(string(ev.Value(f.args[0]))) |
| 377 | sw := ssvWriter{w: w} |
| 378 | for _, name := range names { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 379 | sw.WriteString(filepath.Dir(name) + string(filepath.Separator)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 380 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | type funcNotdir struct{ fclosure } |
| 384 | |
| 385 | func (f *funcNotdir) Arity() int { return 1 } |
| 386 | func (f *funcNotdir) Eval(w io.Writer, ev *Evaluator) { |
| 387 | assertArity("notdir", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 388 | names := splitSpaces(string(ev.Value(f.args[0]))) |
| 389 | sw := ssvWriter{w: w} |
| 390 | for _, name := range names { |
| 391 | if name == string(filepath.Separator) { |
| 392 | sw.Write([]byte{}) |
| 393 | continue |
| 394 | } |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 395 | sw.WriteString(filepath.Base(name)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 396 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | type funcSuffix struct{ fclosure } |
| 400 | |
| 401 | func (f *funcSuffix) Arity() int { return 1 } |
| 402 | func (f *funcSuffix) Eval(w io.Writer, ev *Evaluator) { |
| 403 | assertArity("suffix", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 404 | toks := splitSpaces(string(ev.Value(f.args[0]))) |
| 405 | sw := ssvWriter{w: w} |
| 406 | for _, tok := range toks { |
| 407 | e := filepath.Ext(tok) |
| 408 | if len(e) > 0 { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 409 | sw.WriteString(e) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 410 | } |
| 411 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | type funcBasename struct{ fclosure } |
| 415 | |
| 416 | func (f *funcBasename) Arity() int { return 1 } |
| 417 | func (f *funcBasename) Eval(w io.Writer, ev *Evaluator) { |
| 418 | assertArity("basename", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 419 | toks := splitSpaces(string(ev.Value(f.args[0]))) |
| 420 | sw := ssvWriter{w: w} |
| 421 | for _, tok := range toks { |
| 422 | e := stripExt(tok) |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 423 | sw.WriteString(e) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 424 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | type funcAddsuffix struct{ fclosure } |
| 428 | |
| 429 | func (f *funcAddsuffix) Arity() int { return 2 } |
| 430 | func (f *funcAddsuffix) Eval(w io.Writer, ev *Evaluator) { |
| 431 | assertArity("addsuffix", 2, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 432 | suf := ev.Value(f.args[0]) |
| 433 | toks := splitSpacesBytes(ev.Value(f.args[1])) |
| 434 | sw := ssvWriter{w: w} |
| 435 | for _, tok := range toks { |
| 436 | sw.Write(tok) |
| 437 | // Use |w| not to append extra ' '. |
| 438 | w.Write(suf) |
| 439 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 440 | } |
| 441 | |
| 442 | type funcAddprefix struct{ fclosure } |
| 443 | |
| 444 | func (f *funcAddprefix) Arity() int { return 2 } |
| 445 | func (f *funcAddprefix) Eval(w io.Writer, ev *Evaluator) { |
| 446 | assertArity("addprefix", 2, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 447 | pre := ev.Value(f.args[0]) |
| 448 | toks := splitSpacesBytes(ev.Value(f.args[1])) |
| 449 | sw := ssvWriter{w: w} |
| 450 | for _, tok := range toks { |
| 451 | sw.Write(pre) |
| 452 | // Use |w| not to append extra ' '. |
| 453 | w.Write(tok) |
| 454 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | type funcRealpath struct{ fclosure } |
| 458 | |
| 459 | func (f *funcRealpath) Arity() int { return 1 } |
| 460 | func (f *funcRealpath) Eval(w io.Writer, ev *Evaluator) { |
| 461 | assertArity("realpath", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 462 | names := splitSpaces(string(ev.Value(f.args[0]))) |
| 463 | sw := ssvWriter{w: w} |
| 464 | for _, name := range names { |
| 465 | name, err := filepath.Abs(name) |
| 466 | if err != nil { |
| 467 | Log("abs: %v", err) |
| 468 | continue |
| 469 | } |
| 470 | name, err = filepath.EvalSymlinks(name) |
| 471 | if err != nil { |
| 472 | Log("realpath: %v", err) |
| 473 | continue |
| 474 | } |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 475 | sw.WriteString(name) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 476 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 477 | } |
| 478 | |
| 479 | type funcAbspath struct{ fclosure } |
| 480 | |
| 481 | func (f *funcAbspath) Arity() int { return 1 } |
| 482 | func (f *funcAbspath) Eval(w io.Writer, ev *Evaluator) { |
| 483 | assertArity("abspath", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 484 | names := splitSpaces(string(ev.Value(f.args[0]))) |
| 485 | sw := ssvWriter{w: w} |
| 486 | for _, name := range names { |
| 487 | name, err := filepath.Abs(name) |
| 488 | if err != nil { |
| 489 | Log("abs: %v", err) |
| 490 | continue |
| 491 | } |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 492 | sw.WriteString(name) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 493 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 494 | } |
| 495 | |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 496 | // http://www.gnu.org/software/make/manual/make.html#Conditional-Functions |
| 497 | type funcIf struct{ fclosure } |
| 498 | |
| 499 | func (f *funcIf) Arity() int { return 3 } |
| 500 | func (f *funcIf) Eval(w io.Writer, ev *Evaluator) { |
| 501 | assertArity("if", 2, len(f.args)) |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 502 | cond := ev.Value(f.args[0]) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 503 | if len(cond) != 0 { |
| 504 | w.Write(ev.Value(f.args[1])) |
| 505 | return |
| 506 | } |
| 507 | sw := ssvWriter{w: w} |
| 508 | for _, part := range f.args[2:] { |
| 509 | sw.Write(ev.Value(part)) |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | type funcAnd struct{ fclosure } |
| 514 | |
| 515 | func (f *funcAnd) Arity() int { return 0 } |
| 516 | func (f *funcAnd) Eval(w io.Writer, ev *Evaluator) { |
| 517 | assertArity("and", 0, len(f.args)) |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 518 | var cond []byte |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 519 | for _, arg := range f.args { |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 520 | cond = ev.Value(arg) |
| 521 | if len(cond) == 0 { |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 522 | return |
| 523 | } |
| 524 | } |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 525 | w.Write(cond) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | type funcOr struct{ fclosure } |
| 529 | |
| 530 | func (f *funcOr) Arity() int { return 0 } |
| 531 | func (f *funcOr) Eval(w io.Writer, ev *Evaluator) { |
| 532 | assertArity("or", 0, len(f.args)) |
| 533 | for _, arg := range f.args { |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 534 | cond := ev.Value(arg) |
| 535 | if len(cond) != 0 { |
| 536 | w.Write(cond) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 537 | return |
| 538 | } |
| 539 | } |
| 540 | } |
| 541 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 542 | // http://www.gnu.org/software/make/manual/make.html#Shell-Function |
| 543 | type funcShell struct{ fclosure } |
| 544 | |
| 545 | func (f *funcShell) Arity() int { return 1 } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 546 | |
| 547 | func (f *funcShell) Eval(w io.Writer, ev *Evaluator) { |
| 548 | assertArity("shell", 1, len(f.args)) |
| 549 | arg := ev.Value(f.args[0]) |
Shinichiro Hamaji | 89551c9 | 2015-04-11 19:33:03 +0900 | [diff] [blame] | 550 | shellVar := ev.LookupVar("SHELL") |
| 551 | // TODO: Should be Eval, not String. |
| 552 | cmdline := []string{shellVar.String(), "-c", string(arg)} |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 553 | cmd := exec.Cmd{ |
| 554 | Path: cmdline[0], |
| 555 | Args: cmdline, |
| 556 | Stderr: os.Stderr, |
| 557 | } |
| 558 | out, err := cmd.Output() |
| 559 | if err != nil { |
| 560 | Log("$(shell %q) failed: %q", arg, err) |
| 561 | } |
| 562 | |
| 563 | r := string(out) |
| 564 | r = strings.TrimRight(r, "\n") |
| 565 | r = strings.Replace(r, "\n", " ", -1) |
| 566 | fmt.Fprint(w, r) |
| 567 | } |
| 568 | |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 569 | // https://www.gnu.org/software/make/manual/html_node/Call-Function.html#Call-Function |
| 570 | type funcCall struct{ fclosure } |
| 571 | |
| 572 | func (f *funcCall) Arity() int { return 0 } |
| 573 | |
| 574 | func (f *funcCall) Eval(w io.Writer, ev *Evaluator) { |
| 575 | variable := string(ev.Value(f.args[0])) |
| 576 | v := ev.LookupVar(variable) |
| 577 | Log("call variable %q", v) |
| 578 | // Evalualte all arguments first before we modify the table. |
Shinichiro Hamaji | 39728f1 | 2015-04-11 20:12:23 +0900 | [diff] [blame^] | 579 | var args []tmpval |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 580 | for i, arg := range f.args[1:] { |
| 581 | args = append(args, tmpval(ev.Value(arg))) |
| 582 | Log("call $%d: %q=>%q", i+1, arg, args[i]) |
| 583 | } |
| 584 | |
| 585 | var olds []oldVar |
| 586 | for i, arg := range args { |
| 587 | name := fmt.Sprintf("%d", i+1) |
| 588 | olds = append(olds, newOldVar(ev, name)) |
| 589 | ev.outVars.Assign(name, |
| 590 | SimpleVar{ |
Shinichiro Hamaji | 39728f1 | 2015-04-11 20:12:23 +0900 | [diff] [blame^] | 591 | value: arg, |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 592 | origin: "automatic", // ?? |
| 593 | }) |
| 594 | } |
| 595 | |
| 596 | var buf bytes.Buffer |
| 597 | v.Eval(&buf, ev) |
| 598 | for _, old := range olds { |
| 599 | old.restore(ev) |
| 600 | } |
| 601 | Log("call %q return %q", f.args[0], buf.String()) |
| 602 | w.Write(buf.Bytes()) |
| 603 | } |
| 604 | |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 605 | // http://www.gnu.org/software/make/manual/make.html#Value-Function |
| 606 | type funcValue struct{ fclosure } |
| 607 | |
| 608 | func (f *funcValue) Arity() int { return 1 } |
| 609 | func (f *funcValue) Eval(w io.Writer, ev *Evaluator) { |
| 610 | assertArity("value", 1, len(f.args)) |
| 611 | v := ev.LookupVar(f.args[0].String()) |
| 612 | w.Write([]byte(v.String())) |
| 613 | } |
| 614 | |
| 615 | // http://www.gnu.org/software/make/manual/make.html#Eval-Function |
| 616 | type funcEval struct{ fclosure } |
| 617 | |
| 618 | func (f *funcEval) Arity() int { return 1 } |
| 619 | func (f *funcEval) Eval(w io.Writer, ev *Evaluator) { |
| 620 | assertArity("eval", 1, len(f.args)) |
| 621 | s := ev.Value(f.args[0]) |
| 622 | if len(s) == 0 || (s[0] == '#' && bytes.IndexByte(s, '\n') < 0) { |
| 623 | return |
| 624 | } |
| 625 | mk, err := ParseMakefileBytes(s, ev.filename, ev.lineno) |
| 626 | if err != nil { |
| 627 | panic(err) |
| 628 | } |
| 629 | |
| 630 | for _, stmt := range mk.stmts { |
| 631 | ev.eval(stmt) |
| 632 | } |
| 633 | } |
| 634 | |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 635 | // http://www.gnu.org/software/make/manual/make.html#Origin-Function |
| 636 | type funcOrigin struct{ fclosure } |
| 637 | |
| 638 | func (f *funcOrigin) Arity() int { return 1 } |
| 639 | func (f *funcOrigin) Eval(w io.Writer, ev *Evaluator) { |
| 640 | assertArity("origin", 1, len(f.args)) |
| 641 | v := ev.LookupVar(f.args[0].String()) |
| 642 | w.Write([]byte(v.Origin())) |
| 643 | } |
| 644 | |
| 645 | // https://www.gnu.org/software/make/manual/html_node/Flavor-Function.html#Flavor-Function |
| 646 | type funcFlavor struct{ fclosure } |
| 647 | |
| 648 | func (f *funcFlavor) Arity() int { return 1 } |
| 649 | func (f *funcFlavor) Eval(w io.Writer, ev *Evaluator) { |
| 650 | assertArity("flavor", 1, len(f.args)) |
| 651 | v := ev.LookupVar(f.args[0].String()) |
| 652 | w.Write([]byte(v.Flavor())) |
| 653 | } |
| 654 | |
| 655 | // http://www.gnu.org/software/make/manual/make.html#Make-Control-Functions |
| 656 | type funcInfo struct{ fclosure } |
| 657 | |
| 658 | func (f *funcInfo) Arity() int { return 1 } |
| 659 | func (f *funcInfo) Eval(w io.Writer, ev *Evaluator) { |
| 660 | assertArity("info", 1, len(f.args)) |
| 661 | arg := ev.Value(f.args[0]) |
| 662 | fmt.Printf("%s\n", arg) |
| 663 | } |
| 664 | |
| 665 | type funcWarning struct{ fclosure } |
| 666 | |
| 667 | func (f *funcWarning) Arity() int { return 1 } |
| 668 | func (f *funcWarning) Eval(w io.Writer, ev *Evaluator) { |
| 669 | assertArity("warning", 1, len(f.args)) |
| 670 | arg := ev.Value(f.args[0]) |
| 671 | fmt.Printf("%s:%d: %s\n", ev.filename, ev.lineno, arg) |
| 672 | } |
| 673 | |
| 674 | type funcError struct{ fclosure } |
| 675 | |
| 676 | func (f *funcError) Arity() int { return 1 } |
| 677 | func (f *funcError) Eval(w io.Writer, ev *Evaluator) { |
| 678 | assertArity("error", 1, len(f.args)) |
| 679 | arg := ev.Value(f.args[0]) |
| 680 | Error(ev.filename, ev.lineno, "*** %s.", arg) |
| 681 | } |
| 682 | |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 683 | // http://www.gnu.org/software/make/manual/make.html#Foreach-Function |
| 684 | type funcForeach struct{ fclosure } |
| 685 | |
| 686 | func (f *funcForeach) Arity() int { return 3 } |
| 687 | |
| 688 | func (f *funcForeach) Eval(w io.Writer, ev *Evaluator) { |
| 689 | assertArity("foreach", 3, len(f.args)) |
| 690 | varname := string(ev.Value(f.args[0])) |
| 691 | list := ev.Values(f.args[1]) |
| 692 | text := f.args[2] |
| 693 | old := newOldVar(ev, varname) |
| 694 | space := false |
| 695 | for _, word := range list { |
| 696 | ev.outVars.Assign(varname, |
| 697 | SimpleVar{ |
Shinichiro Hamaji | 39728f1 | 2015-04-11 20:12:23 +0900 | [diff] [blame^] | 698 | value: word, |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 699 | origin: "automatic", |
| 700 | }) |
| 701 | if space { |
| 702 | w.Write([]byte{' '}) |
| 703 | } |
| 704 | w.Write(ev.Value(text)) |
| 705 | space = true |
| 706 | } |
| 707 | old.restore(ev) |
| 708 | } |