| 1 | n/a | # Check for a module in a set of extension directories. |
|---|
| 2 | n/a | # An extension directory should contain a Setup file |
|---|
| 3 | n/a | # and one or more .o files or a lib.a file. |
|---|
| 4 | n/a | |
|---|
| 5 | n/a | import os |
|---|
| 6 | n/a | import parsesetup |
|---|
| 7 | n/a | |
|---|
| 8 | n/a | def checkextensions(unknown, extensions): |
|---|
| 9 | n/a | files = [] |
|---|
| 10 | n/a | modules = [] |
|---|
| 11 | n/a | edict = {} |
|---|
| 12 | n/a | for e in extensions: |
|---|
| 13 | n/a | setup = os.path.join(e, 'Setup') |
|---|
| 14 | n/a | liba = os.path.join(e, 'lib.a') |
|---|
| 15 | n/a | if not os.path.isfile(liba): |
|---|
| 16 | n/a | liba = None |
|---|
| 17 | n/a | edict[e] = parsesetup.getsetupinfo(setup), liba |
|---|
| 18 | n/a | for mod in unknown: |
|---|
| 19 | n/a | for e in extensions: |
|---|
| 20 | n/a | (mods, vars), liba = edict[e] |
|---|
| 21 | n/a | if mod not in mods: |
|---|
| 22 | n/a | continue |
|---|
| 23 | n/a | modules.append(mod) |
|---|
| 24 | n/a | if liba: |
|---|
| 25 | n/a | # If we find a lib.a, use it, ignore the |
|---|
| 26 | n/a | # .o files, and use *all* libraries for |
|---|
| 27 | n/a | # *all* modules in the Setup file |
|---|
| 28 | n/a | if liba in files: |
|---|
| 29 | n/a | break |
|---|
| 30 | n/a | files.append(liba) |
|---|
| 31 | n/a | for m in list(mods.keys()): |
|---|
| 32 | n/a | files = files + select(e, mods, vars, |
|---|
| 33 | n/a | m, 1) |
|---|
| 34 | n/a | break |
|---|
| 35 | n/a | files = files + select(e, mods, vars, mod, 0) |
|---|
| 36 | n/a | break |
|---|
| 37 | n/a | return files, modules |
|---|
| 38 | n/a | |
|---|
| 39 | n/a | def select(e, mods, vars, mod, skipofiles): |
|---|
| 40 | n/a | files = [] |
|---|
| 41 | n/a | for w in mods[mod]: |
|---|
| 42 | n/a | w = treatword(w) |
|---|
| 43 | n/a | if not w: |
|---|
| 44 | n/a | continue |
|---|
| 45 | n/a | w = expandvars(w, vars) |
|---|
| 46 | n/a | for w in w.split(): |
|---|
| 47 | n/a | if skipofiles and w[-2:] == '.o': |
|---|
| 48 | n/a | continue |
|---|
| 49 | n/a | # Assume $var expands to absolute pathname |
|---|
| 50 | n/a | if w[0] not in ('-', '$') and w[-2:] in ('.o', '.a'): |
|---|
| 51 | n/a | w = os.path.join(e, w) |
|---|
| 52 | n/a | if w[:2] in ('-L', '-R') and w[2:3] != '$': |
|---|
| 53 | n/a | w = w[:2] + os.path.join(e, w[2:]) |
|---|
| 54 | n/a | files.append(w) |
|---|
| 55 | n/a | return files |
|---|
| 56 | n/a | |
|---|
| 57 | n/a | cc_flags = ['-I', '-D', '-U'] |
|---|
| 58 | n/a | cc_exts = ['.c', '.C', '.cc', '.c++'] |
|---|
| 59 | n/a | |
|---|
| 60 | n/a | def treatword(w): |
|---|
| 61 | n/a | if w[:2] in cc_flags: |
|---|
| 62 | n/a | return None |
|---|
| 63 | n/a | if w[:1] == '-': |
|---|
| 64 | n/a | return w # Assume loader flag |
|---|
| 65 | n/a | head, tail = os.path.split(w) |
|---|
| 66 | n/a | base, ext = os.path.splitext(tail) |
|---|
| 67 | n/a | if ext in cc_exts: |
|---|
| 68 | n/a | tail = base + '.o' |
|---|
| 69 | n/a | w = os.path.join(head, tail) |
|---|
| 70 | n/a | return w |
|---|
| 71 | n/a | |
|---|
| 72 | n/a | def expandvars(str, vars): |
|---|
| 73 | n/a | i = 0 |
|---|
| 74 | n/a | while i < len(str): |
|---|
| 75 | n/a | i = k = str.find('$', i) |
|---|
| 76 | n/a | if i < 0: |
|---|
| 77 | n/a | break |
|---|
| 78 | n/a | i = i+1 |
|---|
| 79 | n/a | var = str[i:i+1] |
|---|
| 80 | n/a | i = i+1 |
|---|
| 81 | n/a | if var == '(': |
|---|
| 82 | n/a | j = str.find(')', i) |
|---|
| 83 | n/a | if j < 0: |
|---|
| 84 | n/a | break |
|---|
| 85 | n/a | var = str[i:j] |
|---|
| 86 | n/a | i = j+1 |
|---|
| 87 | n/a | if var in vars: |
|---|
| 88 | n/a | str = str[:k] + vars[var] + str[i:] |
|---|
| 89 | n/a | i = k |
|---|
| 90 | n/a | return str |
|---|
