waf: split pkgconfig logic into a separate module

2 files changed, 62 insertions, 56 deletions

diff --git a/buildtools/wafsamba/pkgconfig.py b/buildtools/wafsamba/pkgconfig.py
new file mode 100644
index 0000000000..51d559416d
--- /dev/null
+++ b/buildtools/wafsamba/pkgconfig.py
@@ -0,0 +1,61 @@
+# handle substitution of variables in pc files
+
+import Build
+from samba_utils import *
+
+def subst_at_vars(task):
+    '''substiture @VAR@ style variables in a file'''
+    src = task.inputs[0].srcpath(task.env)
+    tgt = task.outputs[0].bldpath(task.env)
+
+    f = open(src, 'r')
+    s = f.read()
+    f.close()
+    # split on the vars
+    a = re.split('(@\w+@)', s)
+    out = []
+    done_var = {}
+    back_sub = [ ('PREFIX', '${prefix}'), ('EXEC_PREFIX', '${exec_prefix}')]
+    for v in a:
+        if re.match('@\w+@', v):
+            vname = v[1:-1]
+            if not vname in task.env and vname.upper() in task.env:
+                vname = vname.upper()
+            if not vname in task.env:
+                Logs.error("Unknown substitution %s in %s" % (v, task.name))
+                sys.exit(1)
+            v = SUBST_VARS_RECURSIVE(task.env[vname], task.env)
+            # now we back substitute the allowed pc vars
+            for (b, m) in back_sub:
+                s = task.env[b]
+                if s == v[0:len(s)]:
+                    if not b in done_var:
+                        # we don't want to substitute the first usage
+                        done_var[b] = True
+                    else:
+                        v = m + v[len(s):]
+                    break
+        out.append(v)
+    contents = ''.join(out)
+    f = open(tgt, 'w')
+    s = f.write(contents)
+    f.close()
+    return 0
+
+
+def PKG_CONFIG_FILES(bld, pc_files, vnum=None):
+    '''install some pkg_config pc files'''
+    dest = '${PKGCONFIGDIR}'
+    dest = bld.EXPAND_VARIABLES(dest)
+    for f in TO_LIST(pc_files):
+        base=os.path.basename(f)
+        t = bld.SAMBA_GENERATOR('PKGCONFIG_%s' % base,
+                                rule=subst_at_vars,
+                                source=f+'.in',
+                                target=f)
+        if vnum:
+            t.env.PACKAGE_VERSION = vnum
+        bld.INSTALL_FILES(dest, f, flat=True, destname=base)
+Build.BuildContext.PKG_CONFIG_FILES = PKG_CONFIG_FILES
+
+
diff --git a/buildtools/wafsamba/wafsamba.py b/buildtools/wafsamba/wafsamba.py
index 6d09aedb6e..daab00c33c 100644
--- a/buildtools/wafsamba/wafsamba.py
+++ b/buildtools/wafsamba/wafsamba.py
@@ -28,6 +28,7 @@ import samba_dist
 import samba_wildcard
 import stale_files
 import symbols
+import pkgconfig
 
 # some systems have broken threading in python
 if os.environ.get('WAF_NOTHREADS') == '1':
@@ -819,62 +820,6 @@ def PUBLIC_HEADERS(bld, public_headers, header_path=None):
 Build.BuildContext.PUBLIC_HEADERS = PUBLIC_HEADERS
 
 
-def subst_at_vars(task):
-    '''substiture @VAR@ style variables in a file'''
-    src = task.inputs[0].srcpath(task.env)
-    tgt = task.outputs[0].bldpath(task.env)
-
-    f = open(src, 'r')
-    s = f.read()
-    f.close()
-    # split on the vars
-    a = re.split('(@\w+@)', s)
-    out = []
-    done_var = {}
-    back_sub = [ ('PREFIX', '${prefix}'), ('EXEC_PREFIX', '${exec_prefix}')]
-    for v in a:
-        if re.match('@\w+@', v):
-            vname = v[1:-1]
-            if not vname in task.env and vname.upper() in task.env:
-                vname = vname.upper()
-            if not vname in task.env:
-                Logs.error("Unknown substitution %s in %s" % (v, task.name))
-                sys.exit(1)
-            v = SUBST_VARS_RECURSIVE(task.env[vname], task.env)
-            # now we back substitute the allowed pc vars
-            for (b, m) in back_sub:
-                s = task.env[b]
-                if s == v[0:len(s)]:
-                    if not b in done_var:
-                        # we don't want to substitute the first usage
-                        done_var[b] = True
-                    else:
-                        v = m + v[len(s):]
-                    break
-        out.append(v)
-    contents = ''.join(out)
-    f = open(tgt, 'w')
-    s = f.write(contents)
-    f.close()
-    return 0
-
-
-def PKG_CONFIG_FILES(bld, pc_files, vnum=None):
-    '''install some pkg_config pc files'''
-    dest = '${PKGCONFIGDIR}'
-    dest = bld.EXPAND_VARIABLES(dest)
-    for f in TO_LIST(pc_files):
-        base=os.path.basename(f)
-        t = bld.SAMBA_GENERATOR('PKGCONFIG_%s' % base,
-                                rule=subst_at_vars,
-                                source=f+'.in',
-                                target=f)
-        if vnum:
-            t.env.PACKAGE_VERSION = vnum
-        INSTALL_FILES(bld, dest, f, flat=True, destname=base)
-Build.BuildContext.PKG_CONFIG_FILES = PKG_CONFIG_FILES
-
-
 def MANPAGES(bld, manpages):
     '''build and install manual pages'''
     bld.env.MAN_XSL = 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl'