Update examples

[wimlib] / examples / capturewim.c

diff --git a/examples/capturewim.c b/examples/capturewim.c
new file mode 100644 (file)
index 0000000..f271970
--- /dev/null
+++ b/examples/capturewim.c
@@ -0,0 +1,82 @@
+/*
+ * capturewim.c - A program to capture a directory tree into a WIM file.
+ */
+
+#include <wimlib.h>
+#include <stdio.h>
+
+#define TO_PERCENT(numerator, denominator) \
+       ((float)(((denominator) == 0) ? 0 : ((numerator) * 100 / (float)(denominator))))
+
+static int
+write_progress(enum wimlib_progress_msg msg,
+              const union wimlib_progress_info *info)
+{
+       switch (msg) {
+       case WIMLIB_PROGRESS_MSG_WRITE_STREAMS:
+               printf("Writing WIM: %.2f%% complete\n",
+                      TO_PERCENT(info->write_streams.completed_bytes,
+                                 info->write_streams.total_bytes));
+               break;
+       default:
+               break;
+       }
+       return 0;
+}
+
+int main(int argc, char **argv)
+{
+       int ret;
+       WIMStruct *wim = NULL;
+       const char *srcdir;
+       const char *wimpath;
+
+       /* Check for the correct number of arguments.  */
+       if (argc != 3) {
+               fprintf(stderr, "Usage: capturewim DIR WIM\n");
+               return 2;
+       }
+
+       srcdir = argv[1];
+       wimpath = argv[2];
+
+       /* Create a WIMStruct for a WIM.  */
+       ret = wimlib_create_new_wim(WIMLIB_COMPRESSION_TYPE_LZX, &wim);
+       if (ret != 0)  /* Always should check the error codes.  */
+               goto out;
+
+       /* Add the directory tree to the WIMStruct as an image.  */
+
+       ret = wimlib_add_image(wim,     /* WIMStruct to which to add the image    */
+                              srcdir,  /* Directory from which to add the image  */
+                              NULL,    /* Name to give the image (NULL means none)  */
+                              NULL,    /* Capture configuration structure (NULL means none)  */
+                              0,       /* WIMLIB_ADD_FLAG_* flags (0 means all defaults)  */
+                              NULL);   /* Progress function (NULL means none) */
+       if (ret != 0)
+               goto out;
+
+       /* Write the WIM file.  */
+
+       ret = wimlib_write(wim,      /* WIMStruct from which to write a WIM  */
+                          wimpath,  /* Path to write the WIM to             */
+                          WIMLIB_ALL_IMAGES, /*  Image(s) in the WIM to write */
+                          0,        /* WIMLIB_WRITE_FLAG_* flags (0 means all defaults)   */
+                          0,        /* Number of compressor threads (0 means default)  */
+                          write_progress); /* Progress function  */
+
+out:
+       /* Free the WIMStruct.  Has no effect if the pointer to it is NULL.  */
+       wimlib_free(wim);
+
+       /* Check for error status.  */
+       if (ret != 0) {
+               fprintf(stderr, "wimlib error %d: %s\n",
+                       ret, wimlib_get_error_string(ret));
+       }
+
+       /* Free global memory (optional).  */
+       wimlib_global_cleanup();
+
+       return ret;
+}