add remove commands to dxvk and wine

6 files changed, 136 insertions, 3 deletions

diff --git a/src/common.c b/src/common.c
index c5d9435..9b0ab51 100644
--- a/src/common.c
+++ b/src/common.c
@@ -3,6 +3,9 @@
 #include <string.h>
 #include <stdbool.h>
 #include <sys/stat.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <dirent.h>
 
 #include "common.h"
 
@@ -49,14 +52,63 @@ bool isDir(const char* path)
     return S_ISDIR(sb.st_mode) || S_ISLNK(sb.st_mode);
 }
 
-void makeDir(const char* path)
+int makeDir(const char* path)
 {
     // we do not care about the contents but what stat returns
     struct stat sb;
 
     if (stat(path, &sb) < 0)
     {
-        mkdir(path, 0755);
+        return mkdir(path, 0755);
     }
+
+    return 0; // directory exists, pretend we made it
 }
 
+int removeDir(const char *path) {
+    DIR *d = opendir(path);
+    size_t path_len = strlen(path);
+    int r = -1;
+
+    if (d) {
+        struct dirent *p;
+
+        r = 0;
+        while (!r && (p=readdir(d))) {
+            char *buf;
+            size_t len;
+
+            // Skip the names "." and ".." as we don't want to recurse on them.
+            if (!strcmp(p->d_name, ".") || !strcmp(p->d_name, ".."))
+                continue;
+
+            len = path_len + strlen(p->d_name) + 2; 
+            buf = malloc(len);
+
+            if (buf) {
+                struct stat statbuf = {0};
+
+                snprintf(buf, len, "%s/%s", path, p->d_name);
+                if (!stat(buf, &statbuf)) {
+                    if (S_ISDIR(statbuf.st_mode))
+                        r = removeDir(buf);
+                    else if (S_ISLNK(statbuf.st_mode))
+                        r = unlink(buf);
+                    else
+                        r = remove(buf);
+                }
+                else // it is very likely that we found a dangling symlink which is not detected by stat
+                {
+                    r = unlink(buf);
+                }
+                free(buf);
+            }
+        }
+        closedir(d);
+    }
+
+    if (!r)
+        r = rmdir(path);
+
+    return r;
+}
\ No newline at end of file
diff --git a/src/common.h b/src/common.h
index fdd5ac2..f376195 100644
--- a/src/common.h
+++ b/src/common.h
@@ -50,6 +50,7 @@ struct stat getStat(const char* path);
 bool isFile(const char*);
 bool isDir(const char*);
 
-void makeDir(const char* path);
+int makeDir(const char* path);
+int removeDir(const char *path);
 
 #endif
diff --git a/src/dxvk.c b/src/dxvk.c
index 2cd71b0..bca742e 100644
--- a/src/dxvk.c
+++ b/src/dxvk.c
@@ -84,6 +84,38 @@ COMMAND(dxvk, download)
 
 COMMAND(dxvk, remove)
 {
+    if (argc == 2)
+    {
+        char* dxvkver = argv[1];
+
+        char dxvkpath[PATH_MAX];
+        getDXVKDir(dxvkpath, sizeof(dxvkpath));
+
+        strncat(dxvkpath, "/", sizeof(dxvkpath) - strlen(dxvkpath) - 1);
+        strncat(dxvkpath, dxvkver, sizeof(dxvkpath) - strlen(dxvkpath) - 1);
+
+
+        if (!isDir(dxvkpath))
+        {
+            fprintf(stderr, "`%s' is not an downloaded DXVK version\n", dxvkver);
+            return 0;
+        }
+
+        int retval = removeDir(dxvkpath);
+        if (!retval)
+        {
+            fprintf(stderr, "Done\n");
+        }
+        else
+        {
+            fprintf(stderr, "Something might have gone wrong. Manual cleanup might be required\n");
+        }
+
+        return retval;
+    }
+
+    fprintf(stderr, USAGE_STR " dxvk remove <version>\n\nInstalled dxvk versions can be obtained by using `" NAME " dxvk list-installed\n");
+
     return 0;
 }
 
diff --git a/src/dxvk.h b/src/dxvk.h
index 0741e2c..1469088 100644
--- a/src/dxvk.h
+++ b/src/dxvk.h
@@ -7,6 +7,7 @@
 
 COMMAND_GROUP(dxvk);
 COMMAND(dxvk, download);
+COMMAND(dxvk, remove);
 COMMAND(dxvk, list);
 COMMAND(dxvk, install);
 COMMAND(dxvk, installed);
diff --git a/src/wine.c b/src/wine.c
index 42d5cfc..f4a94ea 100644
--- a/src/wine.c
+++ b/src/wine.c
@@ -87,8 +87,54 @@ COMMAND(wine, download)
     return 0;
 }
 
+
 COMMAND(wine, remove)
 {
+    if (argc == 2)
+    {
+        char* winever = argv[1];
+
+        char winepath[PATH_MAX];
+        getWineDir(winepath, sizeof(winepath));
+
+        strncat(winepath, "/", sizeof(winepath) - strlen(winepath) - 1);
+        strncat(winepath, winever, sizeof(winepath) - strlen(winepath) - 1);
+
+        if (!isDir(winepath))
+        {
+
+            // if the wine version does not exist try appending the system arch e.g. x86_64
+            struct utsname buffer;
+
+            if (!uname(&buffer))
+            {
+                strncat(winepath, "-", sizeof(winepath) - strlen(winepath) - 1);
+                strncat(winepath, buffer.machine, sizeof(winepath) - strlen(winepath) - 1);
+            }
+
+            // if it still doesn't exist tell this wine version is not installed
+            if (!isDir(winepath))
+            {
+                fprintf(stderr, "`%s' is not an installed wine version\n", winever);
+                return 0;
+            }
+        }
+
+        int retval = removeDir(winepath);
+        if (!retval)
+        {
+            fprintf(stderr, "Done\n");
+        }
+        else
+        {
+            fprintf(stderr, "Something might have gone wrong. Manual cleanup might be required\n");
+        }
+
+        return retval;
+    }
+
+    fprintf(stderr, USAGE_STR " wine remove <version>\n\nInstalled wine versions can be obtained by using `" NAME " wine list-installed\n");
+
     return 0;
 }
 
diff --git a/src/wine.h b/src/wine.h
index 48994ba..d8ecdbe 100644
--- a/src/wine.h
+++ b/src/wine.h
@@ -16,6 +16,7 @@ enum wine_type_t {
 
 COMMAND_GROUP(wine);
 COMMAND(wine, download);
+COMMAND(wine, remove);
 COMMAND(wine, list);
 COMMAND(wine, run);
 COMMAND(wine, installed);