[Minios-devel] [UNIKRAFT PATCH v3 12/23] kconfig: Support glob in kconfig

[Sharan Santhanam <sharan.santhanam@xxxxxxxxx>]

Add support for glob on kconfig. Taken from coreboot implementation.

URL: https://github.com/coreboot/coreboot
commit-id: 91ba80dd798b

Signed-off-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx>
---
 support/kconfig.new/lexer.l                        | 27 +++++++++
 support/kconfig.new/lkc.h                          |  1 +
 support/kconfig.new/parser.y                       |  2 +-
 .../kconfig.new/patches/09-support-glob-in-kconfig | 70 ++++++++++++++++++++++
 4 files changed, 99 insertions(+), 1 deletion(-)
 create mode 100644 support/kconfig.new/patches/09-support-glob-in-kconfig

diff --git a/support/kconfig.new/lexer.l b/support/kconfig.new/lexer.l
index 6354c90..c5acb32 100644
--- a/support/kconfig.new/lexer.l
+++ b/support/kconfig.new/lexer.l
@@ -8,6 +8,7 @@
 %{
 
 #include <assert.h>
+#include <glob.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -442,6 +443,32 @@ void zconf_nextfile(const char *name)
        current_file = file;
 }
 
+void zconf_nextfiles(const char *wildcard)
+{
+       glob_t g = {0};
+       char **w;
+       int i;
+
+       if (glob(wildcard, 0, NULL, &g) != 0) {
+               return;
+       }
+       if (g.gl_pathv == NULL) {
+               globfree(&g);
+               return;
+       }
+
+       /* working through files backwards, since
+        * we're first pushing them on a stack
+        * before actually handling them.
+        */
+       for (i = g.gl_pathc; i > 0; i--) {
+               w = &g.gl_pathv[i - 1];
+               zconf_nextfile(*w);
+       }
+
+       globfree(&g);
+}
+
 static void zconf_endfile(void)
 {
        struct buffer *parent;
diff --git a/support/kconfig.new/lkc.h b/support/kconfig.new/lkc.h
index cbc7658..69d2c77 100644
--- a/support/kconfig.new/lkc.h
+++ b/support/kconfig.new/lkc.h
@@ -44,6 +44,7 @@ void zconf_starthelp(void);
 FILE *zconf_fopen(const char *name);
 void zconf_initscan(const char *name);
 void zconf_nextfile(const char *name);
+void zconf_nextfiles(const char *name);
 int zconf_lineno(void);
 const char *zconf_curname(void);
 
diff --git a/support/kconfig.new/parser.y b/support/kconfig.new/parser.y
index 60936c7..95700f8 100644
--- a/support/kconfig.new/parser.y
+++ b/support/kconfig.new/parser.y
@@ -366,7 +366,7 @@ menu_option_list:
 source_stmt: T_SOURCE prompt T_EOL
 {
        printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), 
zconf_lineno(), $2);
-       zconf_nextfile($2);
+       zconf_nextfiles($2);
        free($2);
 };
 
diff --git a/support/kconfig.new/patches/09-support-glob-in-kconfig 
b/support/kconfig.new/patches/09-support-glob-in-kconfig
new file mode 100644
index 0000000..0357c22
--- /dev/null
+++ b/support/kconfig.new/patches/09-support-glob-in-kconfig
@@ -0,0 +1,70 @@
+diff --git a/support/kconfig.new/lexer.l b/support/kconfig.new/lexer.l
+index 6354c90..c5acb32 100644
+--- a/support/kconfig.new/lexer.l
++++ b/support/kconfig.new/lexer.l
+@@ -8,6 +8,7 @@
+ %{
+ 
+ #include <assert.h>
++#include <glob.h>
+ #include <limits.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+@@ -442,6 +443,32 @@ void zconf_nextfile(const char *name)
+       current_file = file;
+ }
+ 
++void zconf_nextfiles(const char *wildcard)
++{
++      glob_t g = {0};
++      char **w;
++      int i;
++
++      if (glob(wildcard, 0, NULL, &g) != 0) {
++              return;
++      }
++      if (g.gl_pathv == NULL) {
++              globfree(&g);
++              return;
++      }
++
++      /* working through files backwards, since
++       * we're first pushing them on a stack
++       * before actually handling them.
++       */
++      for (i = g.gl_pathc; i > 0; i--) {
++              w = &g.gl_pathv[i - 1];
++              zconf_nextfile(*w);
++      }
++
++      globfree(&g);
++}
++
+ static void zconf_endfile(void)
+ {
+       struct buffer *parent;
+diff --git a/support/kconfig.new/lkc.h b/support/kconfig.new/lkc.h
+index cbc7658..69d2c77 100644
+--- a/support/kconfig.new/lkc.h
++++ b/support/kconfig.new/lkc.h
+@@ -44,6 +44,7 @@ void zconf_starthelp(void);
+ FILE *zconf_fopen(const char *name);
+ void zconf_initscan(const char *name);
+ void zconf_nextfile(const char *name);
++void zconf_nextfiles(const char *name);
+ int zconf_lineno(void);
+ const char *zconf_curname(void);
+ 
+diff --git a/support/kconfig.new/parser.y b/support/kconfig.new/parser.y
+index 60936c7..95700f8 100644
+--- a/support/kconfig.new/parser.y
++++ b/support/kconfig.new/parser.y
+@@ -366,7 +366,7 @@ menu_option_list:
+ source_stmt: T_SOURCE prompt T_EOL
+ {
+       printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), 
zconf_lineno(), $2);
+-      zconf_nextfile($2);
++      zconf_nextfiles($2);
+       free($2);
+ };
+ 
-- 
2.7.4


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