- from https://github.com/pld-linux/pld-builder.new

[TLD.git] / pld-builder.new / PLD_Builder / get_br.py

diff --git a/pld-builder.new/PLD_Builder/get_br.py b/pld-builder.new/PLD_Builder/get_br.py
new file mode 100644 (file)
index 0000000..1f69394
--- /dev/null
+++ b/pld-builder.new/PLD_Builder/get_br.py
@@ -0,0 +1,103 @@
+# vi: encoding=utf-8 ts=8 sts=4 sw=4 et
+
+import re
+import string
+import xreadlines
+from util import *
+
+
+def get_build_requires(spec, bconds_with, bconds_without):
+    cond_rx = re.compile(r"%\{(\!\?|\?\!|\?)([a-zA-Z0-9_+]+)\s*:([^%\{\}]*)\}")
+
+    def expand_conds(l):
+        def expand_one(m):
+            if m.group(1) == "?":
+                if macros.has_key(m.group(2)):
+                    return m.group(3)
+            else:
+                if not macros.has_key(m.group(2)):
+                    return m.group(3)
+            return ""
+
+        for i in range(10):
+            l = cond_rx.sub(expand_one, l)
+            if len(l) > 1000: break
+
+        return l
+
+    macro_rx = re.compile(r"%\{([a-zA-Z0-9_+]+)\}")
+    def expand_macros(l):
+        def expand_one(m):
+            if macros.has_key(m.group(1)):
+                return string.strip(macros[m.group(1)])
+            else:
+                return m.group(0) # don't change
+
+        for i in range(10):
+            l = macro_rx.sub(expand_one, l)
+            if len(l) > 1000: break
+
+        return expand_conds(l)
+
+    simple_br_rx = re.compile(r"^BuildRequires\s*:\s*([^\s]+)", re.I)
+    bcond_rx = re.compile(r"^%bcond_(with|without)\s+([^\s]+)")
+    version_rx = re.compile(r"^Version\s*:\s*([^\s]+)", re.I)
+    release_rx = re.compile(r"^Release\s*:\s*([^\s]+)", re.I)
+    name_rx = re.compile(r"^Name\s*:\s*([^\s]+)", re.I)
+    define_rx = re.compile(r"^\%define\s+([a-zA-Z0-9_+]+)\s+(.*)", re.I)
+    any_br_rx = re.compile(r"BuildRequires", re.I)
+
+    macros = {}
+    for b in bconds_with:
+        macros["_with_%s" % b] = 1
+    for b in bconds_without:
+        macros["_without_%s" % b] = 1
+
+    macros["__perl"] = "/usr/bin/perl"
+    macros["_bindir"] = "/usr/bin"
+    macros["_sbindir"] = "/usr/sbin"
+    macros["kgcc_package"] = "gcc"
+
+    build_req = []
+
+    f = open(spec)
+    for l in xreadlines.xreadlines(f):
+        l = string.strip(l)
+        if l == "%changelog": break
+
+        # %bcond_with..
+        m = bcond_rx.search(l)
+        if m:
+            bcond = m.group(2)
+            if m.group(1) == "with":
+                if macros.has_key("_with_%s" % bcond):
+                    macros["with_%s" % bcond] = 1
+            else:
+                if not macros.has_key("_without_%s" % bcond):
+                    macros["with_%s" % bcond] = 1
+            continue
+
+        # name,version,release
+        m = version_rx.search(l)
+        if m: macros["version"] = m.group(1)
+        m = release_rx.search(l)
+        if m: macros["release"] = m.group(1)
+        m = name_rx.search(l)
+        if m: macros["name"] = m.group(1)
+
+        # %define
+        m = define_rx.search(l)
+        if m: macros[m.group(1)] = m.group(2)
+
+        # *BuildRequires*
+        if any_br_rx.search(l):
+            l = expand_macros(l)
+            m = simple_br_rx.search(l)
+            if m:
+                build_req.append(m.group(1))
+            else:
+                if l <> "" and l[0] <> '#':
+                    msg("spec error (%s): %s\n" % (spec, l))
+
+    for x in build_req:
+        print x