Add provide-extractors for fonts and desktop files

- extract mime handler capabilities from application .desktop files
- extract font family names and supported languages from font files
- both are used by PackageKit for on-demand installing of fonts and
  applications, but are useful for other things too

build/rpmfc.c

@@ -1080,6 +1080,31 @@ exit:
 #endif
 }
 
+static int rpmfcMISC(rpmfc fc)
+{
+    struct stat st;
+    int rc = -1;
+    const char *what = NULL;
+    const char * fn = fc->fn[fc->ix];
+    /* this part is enumerated, compare equality not bit flags */
+    int ftype = fc->fcolor->vals[fc->ix] & 0x000F0000;
+
+    if (ftype == RPMFC_FONT) {
+	what = "fontconfig";
+    } else if (ftype == RPMFC_TEXT && rpmFileHasSuffix(fn, ".desktop")) {
+	what = "desktop";
+    }
+
+    if (what == NULL || stat(fn, &st) < 0 || !S_ISREG(st.st_mode)) {
+	goto exit;
+    }
+
+    (void) rpmfcHelper(fc, 'P', what);
+    rc = 0;
+
+exit:
+    return rc;
+}
 typedef const struct rpmfcApplyTbl_s {
     int (*func) (rpmfc fc);
     int colormask;
@@ -1092,6 +1117,7 @@ static const struct rpmfcApplyTbl_s const rpmfcApplyTable[] = {
     { rpmfcSCRIPT,	(RPMFC_SCRIPT|RPMFC_BOURNE|
 			 RPMFC_PERL|RPMFC_PYTHON|RPMFC_MONO|
 			 RPMFC_PKGCONFIG|RPMFC_LIBTOOL) },
+    { rpmfcMISC,	RPMFC_FONT|RPMFC_TEXT },
     { NULL, 0 }
 };
 

macros.in

@@ -495,6 +495,9 @@ print (t)\
 %__pkgconfig_provides   %{_rpmconfigdir}/pkgconfigdeps.sh --provides
 %__pkgconfig_requires   %{_rpmconfigdir}/pkgconfigdeps.sh --requires
 
+%__fontconfig_provides	%{_rpmconfigdir}/fontconfig.prov
+%__desktop_provides	%{_rpmconfigdir}/desktop-file.prov
+
 #==============================================================================
 # ---- Database configuration macros.
 #	Macros used to configure Berkley db parameters.

scripts/Makefile.am

@@ -19,7 +19,8 @@ EXTRA_DIST = \
 	find-requires.php find-provides.php \
 	find-php-provides find-php-requires \
 	mono-find-requires mono-find-provides \
-	pkgconfigdeps.sh libtooldeps.sh
+	pkgconfigdeps.sh libtooldeps.sh \
+	fontconfig.prov desktop-file.prov
 
 rpmconfig_SCRIPTS = \
 	brp-compress brp-python-bytecompile brp-java-gcjcompile \
@@ -31,6 +32,7 @@ rpmconfig_SCRIPTS = \
 	perl.prov perl.req perldeps.pl pythondeps.sh osgideps.pl \
 	mono-find-requires mono-find-provides \
 	pkgconfigdeps.sh libtooldeps.sh \
+	fontconfig.prov desktop-file.prov \
 	rpmdb_loadcvt rpmdiff rpm2cpio.sh tcl.req tgpg 
 
 rpmconfig_DATA = \

scripts/desktop-file.prov

@@ -0,0 +1,21 @@
+#!/bin/sh
+#
+# Transform desktop mimetype info into RPM mimehandler(type) provides
+#
+# Author: Richard Hughes <richard@hughsie.com>
+# Based on other provides scripts from RPM
+
+OLD_IFS="$IFS"
+while read instfile ; do
+	case "$instfile" in
+	*.desktop)
+		mime=`cat $instfile | grep MimeType= | cut -d'=' -f2`
+                IFS=';'
+		for type in $mime ; do
+		        echo 'mimehandler('$type')'
+	        done
+		;;
+	esac
+done
+IFS=$OLD_IFS
+

scripts/fontconfig.prov

@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# Script to install in:
+# /usr/lib/rpm/redhat/find-provides.d
+#
+# Transform font files into RPM provides
+# Requires fontconfig >= 2.6.90
+#
+# Author: Behdad Esfahbod <behdad@redhat.com>
+# Based on other provides scripts from RPM
+#
+
+fcquery=/usr/bin/fc-query
+
+[ -x $fcquery ] || exit 0
+
+# filter out anything outside main fontconfig path
+grep /usr/share/fonts/ |
+while read fn; do
+    $fcquery --format '%{=pkgkit}' "${fn}" 2> /dev/null
+done