Move file_exists to utils (and eliminate several duplicates)

4 files changed, 15 insertions, 28 deletions

diff --git a/libcrystfel/src/image.c b/libcrystfel/src/image.c
index 1423c4d3..d5029a1c 100644
--- a/libcrystfel/src/image.c
+++ b/libcrystfel/src/image.c
@@ -629,20 +629,6 @@ int image_set_zero_mask(struct image *image,
 }
 
 
-static int file_exists(const char *filename)
-{
-	struct stat statbuf;
-	int r;
-
-	r = stat(filename, &statbuf);
-	if ( r != 0 ) {
-		return 0;
-	}
-
-	return 1;
-}
-
-
 static int image_read_image_data(struct image *image,
                                  const DataTemplate *dtempl,
                                  const char *filename,
diff --git a/libcrystfel/src/indexers/felix.c b/libcrystfel/src/indexers/felix.c
index 89de5f70..a02f146f 100644
--- a/libcrystfel/src/indexers/felix.c
+++ b/libcrystfel/src/indexers/felix.c
@@ -730,20 +730,6 @@ void felix_cleanup(IndexingPrivate *pp)
 }
 
 
-static int file_exists(const char *filename)
-{
-	struct stat s;
-
-	if ( stat(filename, &s) != 0 ) {
-		if ( errno == ENOENT ) return 0;
-		ERROR("Failed to check for %s.\n", filename);
-		exit(1);
-	}
-
-	return 1;
-}
-
-
 const char *felix_probe(UnitCell *cell)
 {
 	pid_t pid;
diff --git a/libcrystfel/src/utils.c b/libcrystfel/src/utils.c
index 053e952b..c7c956fa 100644
--- a/libcrystfel/src/utils.c
+++ b/libcrystfel/src/utils.c
@@ -818,6 +818,20 @@ char *load_entire_file(const char *filename)
 }
 
 
+int file_exists(const char *filename)
+{
+	struct stat statbuf;
+	int r;
+
+	r = stat(filename, &statbuf);
+	if ( r != 0 ) {
+		return 0;
+	}
+
+	return 1;
+}
+
+
 int compare_double(const void *av, const void *bv)
 {
 	double a = *(double *)av;
diff --git a/libcrystfel/src/utils.h b/libcrystfel/src/utils.h
index 8bcb51ff..7f50ddc3 100644
--- a/libcrystfel/src/utils.h
+++ b/libcrystfel/src/utils.h
@@ -233,6 +233,7 @@ extern char *safe_basename(const char *in);
 extern char *safe_strdup(const char *in);
 extern void strip_extension(char *bfn);
 extern char *load_entire_file(const char *filename);
+extern int file_exists(const char *filename);
 extern const char *filename_extension(const char *fn, const char **ext2);