rfc822: Update rfc822 module to use testdepends

[ccan] / tools / ccanlint / licenses.c

diff --git a/tools/ccanlint/licenses.c b/tools/ccanlint/licenses.c
index c2a4871d6c3ae2467b37ef105ae671c4339652d8..ff786de88c70f201f17110ac83df342bc063c210 100644 (file)
--- a/tools/ccanlint/licenses.c
+++ b/tools/ccanlint/licenses.c
@@ -2,6 +2,7 @@
 #include "ccanlint.h"
 #include <ccan/talloc/talloc.h>
 #include <ccan/str/str.h>
+#include <ccan/str_talloc/str_talloc.h>
 
 const struct license_info licenses[] = {
        { "LGPLv2+", "LGPL",
@@ -64,6 +65,12 @@ const struct license_info licenses[] = {
            "without warranty"
          }
        },
+       { "CC0", "CC0",
+         { "Waiver.",
+           "unconditionally waives",
+           NULL
+         }
+       },
        { "Public domain", "Public domain",
          { NULL, NULL, NULL  }
        },
@@ -74,33 +81,87 @@ const struct license_info licenses[] = {
 
 /* License compatibilty chart (simplified: we don't test that licenses between
  * files are compatible). */
+#define O true
+#define X false
 bool license_compatible[LICENSE_UNKNOWN+1][LICENSE_UNKNOWN] = {
-/*       LGPL2+ LGPL2 LGPL3 LGPL  GPL2+ GPL2  GPL3  GPL   BSD   MIT   PD   */
+/*     LGPL2+   LGPL3   GPL2+   GPL3     BSD     CC0
+            LGPL2    LGPL   GPL2     GPL     MIT     PD   */
 /* _info says: LGPL2+ */
-       { true, false,false,true, false,false,false,false,true, true, true },
+       { O,  X,  X,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: LGPL2 only */
-       { true, true, false,true, false,false,false,false,true, true, true },
+       { O,  O,  X,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: LGPL3 (or any later version) */
-       { true, false,true, true, false,false,false,false,true, true, true },
+       { O,  X,  O,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: LGPL (no version specified) */
-       { true, true, true, true, false,false,false,false,true, true, true },
+       { O,  O,  O,  O,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: GPL2+ */
-       { true, true, true, true, true, false,false,true, true, true, true },
+       { O,  O,  O,  O,  O,  X,  X,  O,  O,  O,  O,  O },
 /* _info says: GPL2 only */
-       { true, true, true, true, true, true, false,true, true, true, true },
+       { O,  O,  O,  O,  O,  O,  X,  O,  O,  O,  O,  O },
 /* _info says: GPL3 (or any later version) */
-       { true, true, true, true, true, false,true, true, true, true, true },
+       { O,  O,  O,  O,  O,  X,  O,  O,  O,  O,  O,  O },
 /* _info says: GPL (unknown version) */
-       { true, true, true, true, true, true, true, true, true, true, true },
+       { O,  O,  O,  O,  O,  O,  O,  O,  O,  O,  O,  O },
 /* _info says: BSD (3-clause) */
-       { false,false,false,false,false,false,false,false,true, true, true },
+       { X,  X,  X,  X,  X,  X,  X,  X,  O,  O,  O,  O },
 /* _info says: MIT */
-       { false,false,false,false,false,false,false,false,false,true, true },
+       { X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O,  O },
+/* _info says: CC0 */
+       { X,  X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O },
 /* _info says: Public domain */
-       { false,false,false,false,false,false,false,false,false,false,true },
+       { X,  X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O },
 /* _info says something we don't understand */
-       { false,false,false,false,false,false,false,false,false,false,true }
+       { X,  X,  X,  X,  X,  X,  X,  X,  X,  X,  O,  O }
 };
+#undef X
+#undef O
+
+/* See GPLv2 and v2 (basically same wording) for interpreting versions:
+ * the "any later version" means the recepient can choose. */
+enum license which_license(struct doc_section *d)
+{
+       if (!d)
+               return LICENSE_UNKNOWN;
+
+       /* This means "user chooses what version", including GPLv1! */
+       if (streq(d->lines[0], "GPL"))
+               return LICENSE_GPL;
+       /* This means "v2 only". */
+       if (streq(d->lines[0], "GPLv2"))
+               return LICENSE_GPLv2;
+       /* This means "v2 or above" at user's choice. */
+       if (streq(d->lines[0], "GPL (v2 or any later version)"))
+               return LICENSE_GPLv2_PLUS;
+       /* This means "v3 or above" at user's choice. */
+       if (streq(d->lines[0], "GPL (v3 or any later version)"))
+               return LICENSE_GPLv3;
+
+       /* This means "user chooses what version" */
+       if (streq(d->lines[0], "LGPL"))
+               return LICENSE_LGPL;
+       /* This means "v2.1 only". */
+       if (streq(d->lines[0], "LGPLv2.1"))
+               return LICENSE_LGPLv2;
+       /* This means "v2.1 or above" at user's choice. */
+       if (streq(d->lines[0], "LGPL (v2.1 or any later version)"))
+               return LICENSE_LGPLv2_PLUS;
+       /* This means "v3 or above" at user's choice. */
+       if (streq(d->lines[0], "LGPL (v3 or any later version)"))
+               return LICENSE_LGPLv3;
+
+       if (streq(d->lines[0], "BSD-MIT") || streq(d->lines[0], "MIT"))
+               return LICENSE_MIT;
+       if (streq(d->lines[0], "BSD (3 clause)"))
+               return LICENSE_BSD;
+       if (streq(d->lines[0], "CC0"))
+               return LICENSE_CC0;
+       if (strreg(NULL, d->lines[0], "CC0 \\([Pp]ublic [Dd]omain\\)", NULL))
+               return LICENSE_CC0;
+       if (strreg(NULL, d->lines[0], "[Pp]ublic [Dd]omain"))
+               return LICENSE_PUBLIC_DOMAIN;
+
+       return LICENSE_UNKNOWN;
+}
 
 const char *get_ccan_simplified(struct ccan_file *f)
 {
@@ -141,3 +202,16 @@ bool find_boilerplate(struct ccan_file *f, enum license license)
        }
        return true;
 }
+
+struct doc_section *find_license_tag(const struct manifest *m)
+{
+       struct doc_section *d;
+
+       list_for_each(get_ccan_file_docs(m->info_file), d, list) {
+               if (!streq(d->function, m->basename))
+                       continue;
+               if (streq(d->type, "license"))
+                       return d;
+       }
+       return NULL;
+}