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| 1 | +"""Create an applet from a Python script. |
| 2 | +
|
| 3 | +This puts up a dialog asking for a Python source file ('TEXT'). |
| 4 | +The output is a file with the same name but its ".py" suffix dropped. |
| 5 | +It is created by copying an applet template and then adding a 'PYC ' |
| 6 | +resource named __main__ containing the compiled, marshalled script. |
| 7 | +""" |
| 8 | + |
| 9 | +import sys |
| 10 | +sys.stdout = sys.stderr |
| 11 | + |
| 12 | +import string |
| 13 | +import os |
| 14 | +import marshal |
| 15 | +import imp |
| 16 | +import macfs |
| 17 | +import MacOS |
| 18 | +from Res import * |
| 19 | + |
| 20 | +# .pyc file (and 'PYC ' resource magic number) |
| 21 | +MAGIC = imp.get_magic() |
| 22 | + |
| 23 | +# Template file (searched on sys.path) |
| 24 | +TEMPLATE = "PythonApplet" |
| 25 | + |
| 26 | +# Specification of our resource |
| 27 | +RESTYPE = 'PYC ' |
| 28 | +RESNAME = '__main__' |
| 29 | + |
| 30 | +# A resource with this name sets the "owner" (creator) of the destination |
| 31 | +OWNERNAME = "owner resource" |
| 32 | + |
| 33 | +# OpenResFile mode parameters |
| 34 | +READ = 1 |
| 35 | +WRITE = 2 |
| 36 | + |
| 37 | +def main(): |
| 38 | + |
| 39 | + # Find the template |
| 40 | + # (there's no point in proceeding if we can't find it) |
| 41 | + |
| 42 | + for p in sys.path: |
| 43 | + template = os.path.join(p, TEMPLATE) |
| 44 | + try: |
| 45 | + tmpl = open(template, "rb") |
| 46 | + tmpl.close() |
| 47 | + break |
| 48 | + except IOError: |
| 49 | + continue |
| 50 | + else: |
| 51 | + die("Template %s not found" % `template`) |
| 52 | + return |
| 53 | + |
| 54 | + # Convert to full pathname |
| 55 | + template = macfs.FSSpec(template).as_pathname() |
| 56 | + |
| 57 | + # Ask for source text if not specified in sys.argv[1:] |
| 58 | + |
| 59 | + if not sys.argv[1:]: |
| 60 | + srcfss, ok = macfs.StandardGetFile('TEXT') |
| 61 | + if not ok: |
| 62 | + return |
| 63 | + filename = srcfss.as_pathname() |
| 64 | + tp, tf = os.path.split(filename) |
| 65 | + if tf[-3:] == '.py': |
| 66 | + tf = tf[:-3] |
| 67 | + else: |
| 68 | + tf = tf + '.applet' |
| 69 | + dstfss, ok = macfs.StandardPutFile('Save application as:', tf) |
| 70 | + if not ok: return |
| 71 | + process(template, filename, dstfss.as_pathname()) |
| 72 | + else: |
| 73 | + |
| 74 | + # Loop over all files to be processed |
| 75 | + for filename in sys.argv[1:]: |
| 76 | + process(template, filename, '') |
| 77 | + |
| 78 | +undefs = ('Atmp', '????', ' ', '\0\0\0\0', 'BINA') |
| 79 | + |
| 80 | +def process(template, filename, output): |
| 81 | + |
| 82 | + print "Processing", `filename`, "..." |
| 83 | + |
| 84 | + # Read the source and compile it |
| 85 | + # (there's no point overwriting the destination if it has a syntax error) |
| 86 | + |
| 87 | + fp = open(filename) |
| 88 | + text = fp.read() |
| 89 | + fp.close() |
| 90 | + try: |
| 91 | + code = compile(text, filename, "exec") |
| 92 | + except (SyntaxError, EOFError): |
| 93 | + die("Syntax error in script %s" % `filename`) |
| 94 | + return |
| 95 | + |
| 96 | + # Set the destination file name |
| 97 | + |
| 98 | + if string.lower(filename[-3:]) == ".py": |
| 99 | + destname = filename[:-3] |
| 100 | + rsrcname = destname + '.rsrc' |
| 101 | + else: |
| 102 | + destname = filename + ".applet" |
| 103 | + rsrcname = filename + '.rsrc' |
| 104 | + |
| 105 | + if output: |
| 106 | + destname = output |
| 107 | + # Copy the data from the template (creating the file as well) |
| 108 | + |
| 109 | + tmpl = open(template, "rb") |
| 110 | + dest = open(destname, "wb") |
| 111 | + data = tmpl.read() |
| 112 | + if data: |
| 113 | + dest.write(data) |
| 114 | + dest.close() |
| 115 | + tmpl.close() |
| 116 | + |
| 117 | + # Copy the creator of the template to the destination |
| 118 | + # unless it already got one. Set type to APPL |
| 119 | + |
| 120 | + tctor, ttype = MacOS.GetCreatorAndType(template) |
| 121 | + ctor, type = MacOS.GetCreatorAndType(destname) |
| 122 | + if type in undefs: type = 'APPL' |
| 123 | + if ctor in undefs: ctor = tctor |
| 124 | + |
| 125 | + # Open the output resource fork |
| 126 | + |
| 127 | + try: |
| 128 | + output = FSpOpenResFile(destname, WRITE) |
| 129 | + except MacOS.Error: |
| 130 | + print "Creating resource fork..." |
| 131 | + CreateResFile(destname) |
| 132 | + output = FSpOpenResFile(destname, WRITE) |
| 133 | + |
| 134 | + # Copy the resources from the template |
| 135 | + |
| 136 | + input = FSpOpenResFile(template, READ) |
| 137 | + newctor = copyres(input, output) |
| 138 | + CloseResFile(input) |
| 139 | + if newctor: ctor = newctor |
| 140 | + |
| 141 | + # Copy the resources from the target specific resource template, if any |
| 142 | + |
| 143 | + try: |
| 144 | + input = FSpOpenResFile(rsrcname, READ) |
| 145 | + except MacOS.Error: |
| 146 | + pass |
| 147 | + else: |
| 148 | + newctor = copyres(input, output) |
| 149 | + CloseResFile(input) |
| 150 | + if newctor: ctor = newctor |
| 151 | + |
| 152 | + # Now set the creator and type of the destination |
| 153 | + |
| 154 | + MacOS.SetCreatorAndType(destname, ctor, type) |
| 155 | + |
| 156 | + # Make sure we're manipulating the output resource file now |
| 157 | + |
| 158 | + UseResFile(output) |
| 159 | + |
| 160 | + # Delete any existing 'PYC 'resource named __main__ |
| 161 | + |
| 162 | + try: |
| 163 | + res = Get1NamedResource(RESTYPE, RESNAME) |
| 164 | + res.RemoveResource() |
| 165 | + except Error: |
| 166 | + pass |
| 167 | + |
| 168 | + # Create the raw data for the resource from the code object |
| 169 | + |
| 170 | + data = marshal.dumps(code) |
| 171 | + del code |
| 172 | + data = (MAGIC + '\0\0\0\0') + data |
| 173 | + |
| 174 | + # Create the resource and write it |
| 175 | + |
| 176 | + id = 0 |
| 177 | + while id < 128: |
| 178 | + id = Unique1ID(RESTYPE) |
| 179 | + res = Resource(data) |
| 180 | + res.AddResource(RESTYPE, id, RESNAME) |
| 181 | + res.WriteResource() |
| 182 | + res.ReleaseResource() |
| 183 | + |
| 184 | + # Close the output file |
| 185 | + |
| 186 | + CloseResFile(output) |
| 187 | + |
| 188 | + # Give positive feedback |
| 189 | + |
| 190 | + message("Applet %s created." % `destname`) |
| 191 | + |
| 192 | + |
| 193 | +# Copy resources between two resource file descriptors. |
| 194 | +# Exception: don't copy a __main__ resource. |
| 195 | +# If a resource's name is "owner resource", its type is returned |
| 196 | +# (so the caller can use it to set the destination's creator) |
| 197 | + |
| 198 | +def copyres(input, output): |
| 199 | + ctor = None |
| 200 | + UseResFile(input) |
| 201 | + ntypes = Count1Types() |
| 202 | + for itype in range(1, 1+ntypes): |
| 203 | + type = Get1IndType(itype) |
| 204 | + nresources = Count1Resources(type) |
| 205 | + for ires in range(1, 1+nresources): |
| 206 | + res = Get1IndResource(type, ires) |
| 207 | + id, type, name = res.GetResInfo() |
| 208 | + lcname = string.lower(name) |
| 209 | + if (type, lcname) == (RESTYPE, RESNAME): |
| 210 | + continue # Don't copy __main__ from template |
| 211 | + if lcname == OWNERNAME: ctor = type |
| 212 | + size = res.size |
| 213 | + attrs = res.GetResAttrs() |
| 214 | + print id, type, name, size, hex(attrs) |
| 215 | + res.LoadResource() |
| 216 | + res.DetachResource() |
| 217 | + UseResFile(output) |
| 218 | + try: |
| 219 | + res2 = Get1Resource(type, id) |
| 220 | + except MacOS.Error: |
| 221 | + res2 = None |
| 222 | + if res2: |
| 223 | + print "Overwriting..." |
| 224 | + res2.RemoveResource() |
| 225 | + res.AddResource(type, id, name) |
| 226 | + res.WriteResource() |
| 227 | + attrs = attrs | res.GetResAttrs() |
| 228 | + print "New attrs =", hex(attrs) |
| 229 | + res.SetResAttrs(attrs) |
| 230 | + UseResFile(input) |
| 231 | + return ctor |
| 232 | + |
| 233 | + |
| 234 | +# Show a message and exit |
| 235 | + |
| 236 | +def die(str): |
| 237 | + message(str) |
| 238 | + sys.exit(1) |
| 239 | + |
| 240 | + |
| 241 | +# Show a message |
| 242 | + |
| 243 | +def message(str, id = 256): |
| 244 | + from Dlg import * |
| 245 | + d = GetNewDialog(id, -1) |
| 246 | + if not d: |
| 247 | + print "Error:", `str` |
| 248 | + print "DLOG id =", id, "not found." |
| 249 | + return |
| 250 | + tp, h, rect = d.GetDialogItem(2) |
| 251 | + SetDialogItemText(h, str) |
| 252 | + while 1: |
| 253 | + n = ModalDialog(None) |
| 254 | + if n == 1: break |
| 255 | + del d |
| 256 | + |
| 257 | + |
| 258 | +if __name__ == '__main__': |
| 259 | + main() |
| 260 | + |
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