Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 181 insertions, 0 deletions

diff --git a/buildtools/wafsamba/samba_headers.py b/buildtools/wafsamba/samba_headers.py
new file mode 100644
index 0000000..37147a9
--- /dev/null
+++ b/buildtools/wafsamba/samba_headers.py
@@ -0,0 +1,181 @@
+# specialist handling of header files for Samba
+
+import os, re, sys, fnmatch
+from waflib import Build, Logs, Utils, Errors
+from samba_utils import TO_LIST
+
+
+def header_install_path(header, header_path):
+    '''find the installation path for a header, given a header_path option'''
+    if not header_path:
+        return ''
+    if not isinstance(header_path, list):
+        return header_path
+    for (p1, dir) in header_path:
+        for p2 in TO_LIST(p1):
+            if fnmatch.fnmatch(header, p2):
+                return dir
+    # default to current path
+    return ''
+
+
+re_header = re.compile(r'^\s*#\s*include[ \t]*"([^"]+)"', re.I | re.M)
+
+# a dictionary mapping source header paths to public header paths
+header_map = {}
+
+def find_suggested_header(hpath):
+    '''find a suggested header path to use'''
+    base = os.path.basename(hpath)
+    ret = []
+    for h in header_map:
+        if os.path.basename(h) == base:
+            ret.append('<%s>' % header_map[h])
+            ret.append('"%s"' % h)
+    return ret
+
+def create_public_header(task):
+    '''create a public header from a private one, output within the build tree'''
+    src = task.inputs[0].abspath(task.env)
+    tgt = task.outputs[0].bldpath(task.env)
+
+    if os.path.exists(tgt):
+        os.unlink(tgt)
+
+    relsrc = os.path.relpath(src, task.env.TOPDIR)
+
+    infile  = open(src, mode='r')
+    outfile = open(tgt, mode='w')
+    linenumber = 0
+
+    search_paths = [ '', task.env.RELPATH ]
+    for i in task.env.EXTRA_INCLUDES:
+        if i.startswith('#'):
+            search_paths.append(i[1:])
+
+    for line in infile:
+        linenumber += 1
+
+        # allow some straight substitutions
+        if task.env.public_headers_replace and line.strip() in task.env.public_headers_replace:
+            outfile.write(task.env.public_headers_replace[line.strip()] + '\n')
+            continue
+
+        # see if its an include line
+        m = re_header.match(line)
+        if m is None:
+            outfile.write(line)
+            continue
+
+        # its an include, get the header path
+        hpath = m.group(1)
+        if hpath.startswith("bin/default/"):
+            hpath = hpath[12:]
+
+        # some are always allowed
+        if task.env.public_headers_skip and hpath in task.env.public_headers_skip:
+            outfile.write(line)
+            continue
+
+        # work out the header this refers to
+        found = False
+        for s in search_paths:
+            p = os.path.normpath(os.path.join(s, hpath))
+            if p in header_map:
+                outfile.write("#include <%s>\n" % header_map[p])
+                found = True
+                break
+        if found:
+            continue
+
+        if task.env.public_headers_allow_broken:
+            Logs.warn("Broken public header include '%s' in '%s'" % (hpath, relsrc))
+            outfile.write(line)
+            continue
+
+        # try to be nice to the developer by suggesting an alternative
+        suggested = find_suggested_header(hpath)
+        outfile.close()
+        os.unlink(tgt)
+        sys.stderr.write("%s:%u:Error: unable to resolve public header %s (maybe try one of %s)\n" % (
+            os.path.relpath(src, os.getcwd()), linenumber, hpath, suggested))
+        raise Errors.WafError("Unable to resolve header path '%s' in public header '%s' in directory %s" % (
+            hpath, relsrc, task.env.RELPATH))
+    infile.close()
+    outfile.close()
+
+
+def public_headers_simple(bld, public_headers, header_path=None, public_headers_install=True):
+    '''install some headers - simple version, no munging needed
+    '''
+    if not public_headers_install:
+        return
+    for h in TO_LIST(public_headers):
+        inst_path = header_install_path(h, header_path)
+        if h.find(':') != -1:
+            s = h.split(":")
+            h_name =  s[0]
+            inst_name = s[1]
+        else:
+            h_name =  h
+            inst_name = os.path.basename(h)
+        bld.INSTALL_FILES('${INCLUDEDIR}', h_name, destname=inst_name)
+
+
+def PUBLIC_HEADERS(bld, public_headers, header_path=None, public_headers_install=True):
+    '''install some headers
+
+    header_path may either be a string that is added to the INCLUDEDIR,
+    or it can be a dictionary of wildcard patterns which map to destination
+    directories relative to INCLUDEDIR
+    '''
+    bld.SET_BUILD_GROUP('final')
+
+    if not bld.env.build_public_headers:
+        # in this case no header munging needed. Used for tdb, talloc etc
+        public_headers_simple(bld, public_headers, header_path=header_path,
+                              public_headers_install=public_headers_install)
+        return
+
+    # create the public header in the given path
+    # in the build tree
+    for h in TO_LIST(public_headers):
+        inst_path = header_install_path(h, header_path)
+        if h.find(':') != -1:
+            s = h.split(":")
+            h_name =  s[0]
+            inst_name = s[1]
+        else:
+            h_name =  h
+            inst_name = os.path.basename(h)
+        curdir = bld.path.abspath()
+        relpath1 = os.path.relpath(bld.srcnode.abspath(), curdir)
+        relpath2 = os.path.relpath(curdir, bld.srcnode.abspath())
+        targetdir = os.path.normpath(os.path.join(relpath1, bld.env.build_public_headers, inst_path))
+        if not os.path.exists(os.path.join(curdir, targetdir)):
+            raise Errors.WafError("missing source directory %s for public header %s" % (targetdir, inst_name))
+        target = os.path.join(targetdir, inst_name)
+
+        # the source path of the header, relative to the top of the source tree
+        src_path = os.path.normpath(os.path.join(relpath2, h_name))
+
+        # the install path of the header, relative to the public include directory
+        target_path = os.path.normpath(os.path.join(inst_path, inst_name))
+
+        header_map[src_path] = target_path
+
+        t = bld.SAMBA_GENERATOR('HEADER_%s/%s/%s' % (relpath2, inst_path, inst_name),
+                                group='headers',
+                                rule=create_public_header,
+                                source=h_name,
+                                target=target)
+        t.env.RELPATH = relpath2
+        t.env.TOPDIR  = bld.srcnode.abspath()
+        if not bld.env.public_headers_list:
+            bld.env.public_headers_list = []
+        bld.env.public_headers_list.append(os.path.join(inst_path, inst_name))
+        if public_headers_install:
+            bld.INSTALL_FILES('${INCLUDEDIR}',
+                              target,
+                              destname=os.path.join(inst_path, inst_name), flat=True)
+Build.BuildContext.PUBLIC_HEADERS = PUBLIC_HEADERS