| 1 | # handle substitution of variables in pc files
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| 2 |
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| 3 | import os, re, sys
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| 4 | import Build, Logs
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| 5 | from samba_utils import SUBST_VARS_RECURSIVE, TO_LIST
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| 6 |
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| 7 | def subst_at_vars(task):
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| 8 | '''substiture @VAR@ style variables in a file'''
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| 9 |
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| 10 | s = task.inputs[0].read()
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| 11 | # split on the vars
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| 12 | a = re.split('(@\w+@)', s)
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| 13 | out = []
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| 14 | done_var = {}
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| 15 | back_sub = [ ('PREFIX', '${prefix}'), ('EXEC_PREFIX', '${exec_prefix}')]
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| 16 | for v in a:
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| 17 | if re.match('@\w+@', v):
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| 18 | vname = v[1:-1]
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| 19 | if not vname in task.env and vname.upper() in task.env:
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| 20 | vname = vname.upper()
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| 21 | if not vname in task.env:
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| 22 | Logs.error("Unknown substitution %s in %s" % (v, task.name))
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| 23 | sys.exit(1)
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| 24 | v = SUBST_VARS_RECURSIVE(task.env[vname], task.env)
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| 25 | # now we back substitute the allowed pc vars
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| 26 | for (b, m) in back_sub:
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| 27 | s = task.env[b]
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| 28 | if s == v[0:len(s)]:
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| 29 | if not b in done_var:
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| 30 | # we don't want to substitute the first usage
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| 31 | done_var[b] = True
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| 32 | else:
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| 33 | v = m + v[len(s):]
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| 34 | break
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| 35 | out.append(v)
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| 36 | contents = ''.join(out)
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| 37 | task.outputs[0].write(contents)
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| 38 | return 0
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| 39 |
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| 40 |
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| 41 | def PKG_CONFIG_FILES(bld, pc_files, vnum=None):
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| 42 | '''install some pkg_config pc files'''
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| 43 | dest = '${PKGCONFIGDIR}'
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| 44 | dest = bld.EXPAND_VARIABLES(dest)
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| 45 | for f in TO_LIST(pc_files):
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| 46 | base=os.path.basename(f)
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| 47 | t = bld.SAMBA_GENERATOR('PKGCONFIG_%s' % base,
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| 48 | rule=subst_at_vars,
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| 49 | source=f+'.in',
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| 50 | target=f)
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| 51 | bld.add_manual_dependency(bld.path.find_or_declare(f), bld.env['PREFIX'])
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| 52 | t.vars = []
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| 53 | if t.env.RPATH_ON_INSTALL:
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| 54 | t.env.LIB_RPATH = t.env.RPATH_ST % t.env.LIBDIR
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| 55 | else:
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| 56 | t.env.LIB_RPATH = ''
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| 57 | if vnum:
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| 58 | t.env.PACKAGE_VERSION = vnum
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| 59 | for v in [ 'PREFIX', 'EXEC_PREFIX', 'LIB_RPATH' ]:
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| 60 | t.vars.append(t.env[v])
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| 61 | bld.INSTALL_FILES(dest, f, flat=True, destname=base)
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| 62 | Build.BuildContext.PKG_CONFIG_FILES = PKG_CONFIG_FILES
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| 63 |
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| 64 |
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