fix shellcheck identified issues, spelling and whitespace

.github/ISSUE_TEMPLATE/issue-report.md

@@ -11,7 +11,7 @@ PLEASE READ BEFORE REPORTING AN ISSUE
 
 SSHFS does not have any active, regular contributors or developers. The current maintainer continues to apply pull requests and tries to make regular releases, but unfortunately has no capacity to do any development beyond addressing high-impact issues. When reporting bugs, please understand that unless you are including a pull request or are reporting a critical issue, you will probably not get a response.
 
-To prevent the issue tracker from being flooded with issues that no-one is intending to work on, and to give more visibilty to critical issues that users should be aware of and that most urgently need attention, I will also close most bug reports once they've been inactive for a while.
+To prevent the issue tracker from being flooded with issues that no-one is intending to work on, and to give more visibility to critical issues that users should be aware of and that most urgently need attention, I will also close most bug reports once they've been inactive for a while.
 
 Please note that this isn't meant to imply that you haven't found a bug - you most likely have and I'm grateful that you took the time to report it. Unfortunately, SSHFS is a purely volunteer driven project,
 and at the moment there simply aren't any volunteers.

.travis.yml

@@ -18,4 +18,3 @@ addons:
     - libglib2.0-dev
 install: test/travis-install.sh
 script: test/travis-build.sh
-

ChangeLog.rst

@@ -5,13 +5,11 @@ Release 3.7.2 (2021-06-08)
   tried - returning EEXIST if the access was successful.
 	Fixes: https://github.com/libfuse/sshfs/issues/243
 
-
 Release 3.7.1 (2020-11-09)
 --------------------------
 
 * Minor bugfixes.
 
-
 Release 3.7.0 (2020-01-03)
 --------------------------
 
@@ -25,7 +23,6 @@ Release 3.7.0 (2020-01-03)
   needed anymore. If you depend on this workaround, please let the SSHFS maintainers know,
   otherwise support for the workaround will be removed completely in a future version.
 
-
 Release 3.6.0 (2019-11-03)
 --------------------------
 
@@ -38,7 +35,6 @@ Release 3.6.0 (2019-11-03)
 * Fixed a number of compiler warnings.
 * Improved performance under OS X.
 
-
 Release 3.5.2 (2019-04-13)
 --------------------------
 
@@ -108,13 +104,13 @@ Release 3.1.0 (2017-08-04)
 
 * For improved backwards compatibility, SSHFS now also silently
   accepts the old ``-o cache_*`` options.
-  
+
 Release 3.0.0 (2017-07-08)
 --------------------------
 
 * sshfs now requires libfuse 3.1.0 or newer.
 * When supported by the kernel, sshfs now uses writeback caching.
-* The `cache` option has been renamed to `dir_cache` for clarity.  
+* The `cache` option has been renamed to `dir_cache` for clarity.
 * Added unit tests
 * --debug now behaves like -o debug_sshfs, i.e. it enables sshfs
   debugging messages rather than libfuse debugging messages.
@@ -129,7 +125,7 @@ Release 3.0.0 (2017-07-08)
 * Removed support for `-o workaround=all`. Workarounds should always
   enabled explicitly and only when needed. There is no point in always
   enabling a potentially changing set of workarounds.
-  
+
 Release 2.9 (2017-04-17)
 ------------------------
 
@@ -168,14 +164,14 @@ Release 2.4 (2012-03-08)
 ------------------------
 
 * New `slave` option.
-* New `idmap`, `uidmap` and `gidmap` options.  
+* New `idmap`, `uidmap` and `gidmap` options.
 * Various small bugfixes.
 
 Release 2.3 (2011-07-01)
 ------------------------
 
 * Support hard link creation if server is OpenSSH 5.7 or later
-* Small improvements and bug fixes  
+* Small improvements and bug fixes
 * Check mount point and options before connecting to ssh server
 * New 'delay_connect' option
 
@@ -188,7 +184,7 @@ Release 2.2 (2008-10-20)
 Release 2.1 (2008-07-11)
 ------------------------
 
-* Small improvements and bug fixes  
+* Small improvements and bug fixes
 
 Release 2.0 (2008-04-23)
 ------------------------

README.rst

@@ -72,7 +72,7 @@ Normally, the default build options will work fine. If you
 nevertheless want to adjust them, you can do so with the *mesonconf*
 command::
 
-    $ mesonconf                  # list options 
+    $ mesonconf                  # list options
     $ mesonconf -D strip=true    # set an option
 
 To build, test and install SSHFS, you then use Ninja (running the

cache.c

@@ -256,7 +256,7 @@ static void *cache_init(struct fuse_conn_info *conn,
 {
 	void *res;
 	res = cache.next_oper->init(conn, cfg);
-	
+
 	// Cache requires a path for each request
 	cfg->nullpath_ok = 0;
 
@@ -300,7 +300,6 @@ static int cache_readlink(const char *path, char *buf, size_t size)
 	return err;
 }
 
-
 static int cache_opendir(const char *path, struct fuse_file_info *fi)
 {
 	(void) path;
@@ -318,9 +317,9 @@ static int cache_releasedir(const char *path, struct fuse_file_info *fi)
 {
 	int err;
 	struct file_handle *cfi;
-	
+
 	cfi = (struct file_handle*) fi->fh;
-	
+
 	if(cfi->is_open) {
 		fi->fh = cfi->fs_fh;
 		err = cache.next_oper->releasedir(path, fi);
@@ -365,7 +364,7 @@ static int cache_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
 	struct node *node;
 
 	assert(offset == 0);
-	
+
 	pthread_mutex_lock(&cache.lock);
 	node = cache_lookup(path);
 	if (node != NULL && node->dir != NULL) {
@@ -391,8 +390,8 @@ static int cache_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
 		}
 		cfi->is_open = 1;
 		cfi->fs_fh = fi->fh;
-	} 
-	
+	}
+
 	ch.path = path;
 	ch.buf = buf;
 	ch.filler = filler;

compat/fuse_opt.h

@@ -18,7 +18,7 @@ extern "C" {
 /**
  * Option description
  *
- * This structure describes a single option, and and action associated
+ * This structure describes a single option, and action associated
  * with it, in case it matches.
  *
  * More than one such match may occur, in which case the action for

make_release_tarball.sh

@@ -27,4 +27,3 @@ gpg --armor --detach-sign "${TAG}.tar.xz"
 PREV_TAG="$(git tag --list 'sshfs-3*' --sort=-taggerdate --merged "${TAG}^"| head -1)"
 echo "Contributors from ${PREV_TAG} to ${TAG}:"
 git log --pretty="format:%an <%aE>" "${PREV_TAG}..${TAG}" | sort -u
-

meson.build

@@ -26,7 +26,7 @@ endif
 
 
 rst2man = find_program('rst2man', 'rst2man.py', required: false)
-  
+
 cfg = configuration_data()
 
 cfg.set_quoted('PACKAGE_VERSION', meson.project_version())

sshfs.c

@@ -141,7 +141,7 @@
 /*
    Handling of multiple SFTP connections
    --------------------------------------
-   
+
    An SFTP server is free to return responses to outstanding requests in arbitrary
    order. However, execution of requests may only be re-ordered and parallelized as long
    as "the results in the responses will be the same as if [the client] had sent the
@@ -158,11 +158,11 @@
    involved) wait for the other requests to complete. This means that e.g. a readdir
    request would have to block on most other activity in the same directory, eliminating a
    major advantage of using multiple connections.
-   
+
    In practice, we can luckily take advantage of the knowledge that most FUSE requests are
    the result of (synchronous) syscalls from userspace that will block until the
    corresponding FUSE response has been sent.
-   
+
    If -o sshfs_sync is used, SSHFS always waits for the SFTP server response before
    returning a FUSE response to userspace. If userspace makes concurrent system calls,
    there is no ordering guarantee in the first place, so we do not have to worry about
@@ -523,7 +523,7 @@ static struct fuse_opt sshfs_opts[] = {
 	/* For backwards compatibility */
 	SSHFS_OPT("cache=yes", dir_cache, 1),
 	SSHFS_OPT("cache=no",  dir_cache, 0),
-	
+
 	FUSE_OPT_KEY("writeback_cache=no", FUSE_OPT_KEY_DISCARD),
 	FUSE_OPT_KEY("unreliable_append", FUSE_OPT_KEY_DISCARD),
 
@@ -1073,7 +1073,7 @@ static struct conn* get_conn(const struct sshfs_file *sf,
 
 	if (sshfs.max_conns == 1)
 		return &sshfs.conns[0];
-	
+
 	if (sf != NULL)
 		return sf->conn;
 
@@ -1906,7 +1906,7 @@ static void *sshfs_init(struct fuse_conn_info *conn,
 
 	// SFTP only supports 1-second time resolution
 	conn->time_gran = 1000000000;
-	
+
 	return NULL;
 }
 
@@ -2371,13 +2371,13 @@ static int sshfs_mkdir(const char *path, mode_t mode)
 	// Commutes with pending write(), so we can use any connection
 	err = sftp_request(get_conn(NULL, NULL), SSH_FXP_MKDIR, &buf, SSH_FXP_STATUS, NULL);
 	buf_free(&buf);
-	
+
 	if (err == -EPERM) {
 		if (sshfs.op->access(path, R_OK) == 0) {
 			return -EEXIST;
 		}
 	}
-	
+
 	return err;
 }
 
@@ -2394,7 +2394,7 @@ static int sshfs_mknod(const char *path, mode_t mode, dev_t rdev)
 
 	// Commutes with pending write(), so we can use any connection
 	conn = get_conn(NULL, NULL);
-	
+
 	buf_init(&buf, 0);
 	buf_add_path(&buf, path);
 	buf_add_uint32(&buf, SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_EXCL);
@@ -2532,7 +2532,7 @@ static int sshfs_rename(const char *from, const char *to, unsigned int flags)
 		}
 		pthread_mutex_unlock(&sshfs.lock);
 	}
-	
+
 	return err;
 }
 
@@ -2589,12 +2589,12 @@ static int sshfs_chmod(const char *path, mode_t mode,
 	buf_init(&buf, 0);
 	if (sf == NULL)
 		buf_add_path(&buf, path);
-	else 
+	else
 		buf_add_buf(&buf, &sf->handle);
-	
+
 	buf_add_uint32(&buf, SSH_FILEXFER_ATTR_PERMISSIONS);
 	buf_add_uint32(&buf, mode);
-	
+
 	/* FIXME: really needs LSETSTAT extension (debian Bug#640038) */
 	// Commutes with pending write(), so we can use any connection
 	// if the file is not open.
@@ -2618,7 +2618,7 @@ static int sshfs_chown(const char *path, uid_t uid, gid_t gid,
 		if (!sshfs_file_is_conn(sf))
 			return -EIO;
 	}
-	
+
 	if (sshfs.remote_uid_detected) {
 		if (uid == sshfs.local_uid)
 			uid = sshfs.remote_uid;
@@ -2635,7 +2635,7 @@ static int sshfs_chown(const char *path, uid_t uid, gid_t gid,
 	buf_init(&buf, 0);
 	if (sf == NULL)
 		buf_add_path(&buf, path);
-	else 
+	else
 		buf_add_buf(&buf, &sf->handle);
 	buf_add_uint32(&buf, SSH_FILEXFER_ATTR_UIDGID);
 	buf_add_uint32(&buf, uid);
@@ -2685,7 +2685,7 @@ static int sshfs_utimens(const char *path, const struct timespec tv[2],
 	buf_init(&buf, 0);
 	if (sf == NULL)
 		buf_add_path(&buf, path);
-	else 
+	else
 		buf_add_buf(&buf, &sf->handle);
 	buf_add_uint32(&buf, SSH_FILEXFER_ATTR_ACMODTIME);
 	buf_add_uint32(&buf, asec);
@@ -2740,7 +2740,7 @@ static int sshfs_open_common(const char *path, mode_t mode,
 
 	if (fi->flags & O_APPEND)
 		pflags |= SSH_FXF_APPEND;
-	
+
 	sf = g_new0(struct sshfs_file, 1);
 	list_init(&sf->write_reqs);
 	pthread_cond_init(&sf->write_finished, NULL);
@@ -2750,7 +2750,7 @@ static int sshfs_open_common(const char *path, mode_t mode,
 	pthread_mutex_lock(&sshfs.lock);
 	sf->modifver= sshfs.modifver;
 	if (sshfs.max_conns > 1) {
-		ce = g_hash_table_lookup(sshfs.conntab, path);		
+		ce = g_hash_table_lookup(sshfs.conntab, path);
 		if (!ce) {
 			ce = g_malloc(sizeof(struct conntab_entry));
 			ce->refcount = 0;
@@ -3354,7 +3354,7 @@ static int sshfs_truncate(const char *path, off_t size,
 	sshfs_inc_modifver();
 	if (sshfs.truncate_workaround)
 		return sshfs_truncate_workaround(path, size, fi);
-	
+
 	buf_init(&buf, 0);
 
 	if (sf != NULL)
@@ -3397,7 +3397,7 @@ static int sshfs_getattr(const char *path, struct stat *stbuf,
 		buf_add_buf(&buf, &sf->handle);
 		err = sftp_request(sf->conn, SSH_FXP_FSTAT, &buf,
 				   SSH_FXP_ATTRS, &outbuf);
-	}		
+	}
 	if (!err) {
 		err = buf_get_attrs(&outbuf, stbuf, NULL);
 #ifdef __APPLE__