link file list

Implementation of LinkFileList class.

class flash.flmake.link_file_list.LinkFileList(setup_dir)

This class contains the list of files to be linked to the object directory

list = LinkFileList(project_setup_dir) list.clean_setup_dir() —- after all units have been generated —- list.get_dont_link_list(units,linkifUDPairs) list.link_files (sourcedir1) list.link_files (sourcedir2) ...... list.link_files (sourcedir9) list.really_link() – this is the one which really makes the links

Get all user options, Global Variables and all units.

add_link(realname, linkname)

By storing this info in a dictionary we have that later add_links overwrite earlier addlinks with the same name check_links method checks for abc.c and abc.F90 type issues

is_unit_present(uname, unit_list)

Check if uname or one of its children is present in units

get_dont_link_list(unitlist, udpairs)

Return a list of files which should not be linked to

Input: unitlist = list of names of all units udpairs = list of all (fname,uname) pairs found Compute list of files which should not be linked to based on the LINKIF directives (fname,uname) in LINKIF means link in fname only if uname is used as a UNIT, otherwise dont link in fname Algo ans = all fnames occurring in LINKIF if (fname, uname) in LINKIF and unit in units such that uname is a prefix of unit.name, remove fname from ans

link_files(fromdir)

Link files in with right extension in fromdir to object directory

Note: if blah.c is in fromdir and blah.F90 is in the current directory, blah.F90 gets deleted. Same thing for other groups of extensions.

We now also accept files like abc.F90.x.y.z to stand for .F90 files. When this file is linked it will be linked as “abc.F90” The real extension of a file is the string between the first and the second dots, (or string after the first, if there is no second dot)

NOTE: We dont actually link the files, only queue them up for linking. The real linking is done by calling really_link method

really_link()

Function serves to link files whether portable is selected or not

rm_link(linkname)

Remove the file linkname and associated files

is_setup_file(fname)

return if fname is in NO_CLOBBER_EXCEPTION_LIST

samefile(filea, fileb)

The following method should check if the two files are the same by computing the adler32 checksum. (It is theoretically possibile but UNLIKELY that two different text files produce the same checksum.) However, this version of link_files.py is adapted for machines where the zlib module of Python is unavailable, so if we cannot use it (as indicated by a NameError exception), let the files appear different.

changed_links()

Find the list of files in the current dir with significant extension compare with self.links links no longer present and are not derived files get deleted for links where target has changed the .o file gets deleted target same and has been updated is no problem (make takes care of it)