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* use GError in various mu_maildir function to return error info

This commit is contained in:
Dirk-Jan C. Binnema 2010-12-05 16:29:53 +02:00
parent 8b70e6bace
commit 68af173246
6 changed files with 100 additions and 57 deletions
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8
src/mu-cmd-mkdir.c
View File

@ -47,8 +47,14 @@ mu_cmd_mkdir (MuConfigOptions *opts)
i = 1;
while (opts->params[i]) {
GError *err;
err = NULL;
if (!mu_maildir_mkdir (opts->params[i], opts->dirmode,
FALSE))
FALSE, &err))
if (err && err->message) {
g_warning ("%s", err->message);
g_error_free (err);
}
return FALSE;
++i;
}

12
src/mu-error.h
View File

@ -33,10 +33,18 @@ enum _MuError {
MU_ERROR_XAPIAN_MISSING_DATA,
/* (parsnng) error in the query */
MU_ERROR_QUERY,
/* file loading related error */
MU_ERROR_FILE,
/* gmime parsing related error */
MU_ERROR_GMIME,
/* File errors */
MU_ERROR_FILE_INVALID_SOURCE,
MU_ERROR_FILE_CANNOT_LINK,
MU_ERROR_FILE_CANNOT_OPEN,
MU_ERROR_FILE_CANNOT_CREATE,
MU_FILE_ERROR_CANNOT_MKDIR,
/* generic file-related error */
MU_ERROR_FILE,
/* some other, internal error */
MU_ERROR_INTERNAL
};

62
src/mu-maildir.c
View File

@ -36,7 +36,6 @@
#define MU_MAILDIR_WALK_MAX_FILE_SIZE (32*1000*1000)
#define MU_MAILDIR_NOINDEX_FILE ".noindex"
#define MU_MAILDIR_CACHE_FILE ".mu.cache"
/* note: this function is *not* re-entrant, it returns a static buffer */
static const char*
@ -53,7 +52,7 @@ fullpath_s (const char* path, const char* name)
static gboolean
create_maildir (const char *path, mode_t mode)
create_maildir (const char *path, mode_t mode, GError **err)
{
int i;
const gchar* subdirs[] = {"new", "cur", "tmp"};
@ -75,8 +74,9 @@ create_maildir (const char *path, mode_t mode)
fullpath = fullpath_s (path, subdirs[i]);
rv = g_mkdir_with_parents (fullpath, (int)mode);
if (rv != 0) {
g_warning ("g_mkdir_with_parents failed: %s",
strerror (errno));
g_set_error (err, 0, MU_FILE_ERROR_CANNOT_MKDIR,
"g_mkdir_with_parents failed: %s",
strerror (errno));
return FALSE;
}
}
@ -85,7 +85,7 @@ create_maildir (const char *path, mode_t mode)
}
static gboolean
create_noindex (const char *path)
create_noindex (const char *path, GError **err)
{
/* create a noindex file if requested */
int fd;
@ -97,8 +97,9 @@ create_noindex (const char *path)
fd = creat (noindexpath, 0644);
if (fd < 0 || close (fd) != 0) {
g_warning ("error in create_noindex: %s",
strerror (errno));
g_set_error (err, 0, MU_ERROR_FILE_CANNOT_CREATE,
"error in create_noindex: %s",
strerror (errno));
return FALSE;
}
@ -106,17 +107,17 @@ create_noindex (const char *path)
}
gboolean
mu_maildir_mkdir (const char* path, mode_t mode, gboolean noindex)
mu_maildir_mkdir (const char* path, mode_t mode, gboolean noindex, GError **err)
{
g_return_val_if_fail (path, FALSE);
MU_WRITE_LOG ("%s (%s, %o, %s)", __FUNCTION__,
path, mode, noindex ?"TRUE":"FALSE");
path, mode, noindex ? "TRUE" : "FALSE");
if (!create_maildir (path, mode))
if (!create_maildir (path, mode, err))
return FALSE;
if (noindex && !create_noindex (path))
if (noindex && !create_noindex (path, err))
return FALSE;
return TRUE;
@ -125,7 +126,7 @@ mu_maildir_mkdir (const char* path, mode_t mode, gboolean noindex)
/* determine whether the source message is in 'new' or in 'cur';
* we ignore messages in 'tmp' for obvious reasons */
static gboolean
check_subdir (const char *src, gboolean *in_cur)
check_subdir (const char *src, gboolean *in_cur, GError **err)
{
gchar *srcpath;
@ -136,7 +137,8 @@ check_subdir (const char *src, gboolean *in_cur)
else if (g_str_has_suffix (srcpath, "cur"))
*in_cur = TRUE;
else {
g_warning ("%s", "Invalid source message");
g_set_error(err, 0, MU_ERROR_FILE_INVALID_SOURCE,
"invalid source message '%s'", src);
return FALSE;
}
g_free (srcpath);
@ -145,12 +147,12 @@ check_subdir (const char *src, gboolean *in_cur)
}
static gchar*
get_target_fullpath (const char* src, const gchar *targetpath)
get_target_fullpath (const char* src, const gchar *targetpath, GError **err)
{
gchar *targetfullpath, *srcfile, *srcpath, *c;
gboolean in_cur;
if (!check_subdir (src, &in_cur))
if (!check_subdir (src, &in_cur, err))
return NULL;
/* note: make the filename *cough* unique by making the pathname
@ -180,7 +182,7 @@ get_target_fullpath (const char* src, const gchar *targetpath)
gboolean
mu_maildir_link (const char* src, const char *targetpath)
mu_maildir_link (const char* src, const char *targetpath, GError **err)
{
gchar *targetfullpath;
int rv;
@ -188,16 +190,16 @@ mu_maildir_link (const char* src, const char *targetpath)
g_return_val_if_fail (src, FALSE);
g_return_val_if_fail (targetpath, FALSE);
targetfullpath = get_target_fullpath (src, targetpath);
targetfullpath = get_target_fullpath (src, targetpath, err);
if (!targetfullpath)
return FALSE;
rv = symlink (src, targetfullpath);
if (rv != 0) {
g_warning ("error creating link %s => %s: %s",
targetfullpath, src,
strerror (errno));
g_set_error (err, 0, MU_ERROR_FILE_CANNOT_LINK,
"error creating link %s => %s: %s",
targetfullpath, src, strerror (errno));
g_free (targetfullpath);
return FALSE;
}
@ -574,7 +576,7 @@ mu_maildir_walk (const char *path, MuMaildirWalkMsgCallback cb_msg,
static gboolean
clear_links (const gchar* dirname, DIR *dir)
clear_links (const gchar* dirname, DIR *dir, GError **err)
{
struct dirent *entry;
gboolean rv;
@ -602,12 +604,13 @@ clear_links (const gchar* dirname, DIR *dir)
if (entry->d_type == DT_LNK) {
if (unlink (fullpath) != 0) {
g_warning ("error unlinking %s: %s",
fullpath, strerror(errno));
/* don't use err */
g_warning ("error unlinking %s: %s",
fullpath, strerror(errno));
rv = FALSE;
}
} else /* DT_DIR, see check before*/
rv = mu_maildir_clear_links (fullpath);
rv = mu_maildir_clear_links (fullpath, err);
}
return rv;
@ -615,7 +618,7 @@ clear_links (const gchar* dirname, DIR *dir)
gboolean
mu_maildir_clear_links (const gchar* path)
mu_maildir_clear_links (const gchar* path, GError **err)
{
DIR *dir;
gboolean rv;
@ -624,14 +627,13 @@ mu_maildir_clear_links (const gchar* path)
dir = opendir (path);
if (!dir) {
g_warning ("failed to open %s: %s", path,
strerror(errno));
g_set_error (err, 0, MU_ERROR_FILE_CANNOT_OPEN,
"failed to open %s: %s", path,
strerror(errno));
return FALSE;
}
g_debug ("remove symlinks from %s", path);
rv = clear_links (path, dir);
rv = clear_links (path, dir, err);
closedir (dir);
return rv;

19
src/mu-maildir.h
View File

@ -23,7 +23,9 @@
#include <glib.h>
#include <time.h>
#include <sys/types.h> /* for mode_t */
#include "mu-result.h" /* for MuResult */
#include <mu-result.h> /* for MuResult */
#include <mu-error.h>
G_BEGIN_DECLS
@ -37,10 +39,13 @@ G_BEGIN_DECLS
* @param mode the file mode (e.g., 0755)
* @param noindex add a .noindex file to the maildir, so it will be excluded
* from indexing by 'mu index'
* @param err if function returns FALSE, err may contain extra
* information. if err is NULL, does nothing
*
* @return TRUE if creation succeeded, FALSE otherwise
*/
gboolean mu_maildir_mkdir (const char* path, mode_t mode, gboolean noindex);
gboolean mu_maildir_mkdir (const char* path, mode_t mode, gboolean noindex,
GError **err);
/**
@ -49,11 +54,13 @@ gboolean mu_maildir_mkdir (const char* path, mode_t mode, gboolean noindex);
* @param src the full path to the source message
* @param targetpath the path to the target maildir; ie., *not*
* MyMaildir/cur, but just MyMaildir/. The function will figure out
* the correct subdir then. *
* the correct subdir then.
* @param err if function returns FALSE, err may contain extra
* information. if err is NULL, does nothing
*
* @return
*/
gboolean mu_maildir_link (const char* src, const char *targetpath);
gboolean mu_maildir_link (const char* src, const char *targetpath, GError **err);
/**
* MuMaildirWalkMsgCallback -- callback function for
@ -105,10 +112,12 @@ MuResult mu_maildir_walk (const char *path, MuMaildirWalkMsgCallback cb_msg,
* recursively delete all the symbolic links in a directory tree
*
* @param dir top dir
* @param err if function returns FALSE, err may contain extra
* information. if err is NULL, does nothing
*
* @return TRUE if it worked, FALSE in case of error
*/
gboolean mu_maildir_clear_links (const gchar* dir);
gboolean mu_maildir_clear_links (const gchar* dir, GError **err);
G_END_DECLS

50
src/mu-output-link.c
View File

@ -40,22 +40,34 @@
gboolean
mu_output_link_create_dir (const char *linksdir, gboolean clearlinks)
{
g_return_val_if_fail (linksdir, FALSE);
GError *err;
g_return_val_if_fail (linksdir, FALSE);
if (access (linksdir, F_OK) != 0) {
if (!mu_maildir_mkmdir (linksdir, 0700, TRUE))
return FALSE;
} else if (clearlinks)
mu_maildir_clear_links (linksdir);
return TRUE;
err = NULL;
if (access (linksdir, F_OK) != 0) {
if (!mu_maildir_mkdir (linksdir, 0700, TRUE, &err))
goto fail;
} else if (clearlinks)
if (!mu_maildir_clear_links (linksdir, &err))
goto fail;
return TRUE;
fail:
if (err) {
g_warning ("%s", err->message ? err->message : "unknown error");
g_error_free (err);
}
return FALSE;
}
gboolean
mu_output_link_row (MuMsgIter *iter, const char* linksdir)
{
const char *path;
GError *err;
g_return_val_if_fail (iter, FALSE);
g_return_val_if_fail (linksdir, FALSE);
@ -63,21 +75,27 @@ mu_output_link_row (MuMsgIter *iter, const char* linksdir)
path = mu_msg_iter_get_field (iter, MU_MSG_FIELD_ID_PATH);
if (!path)
return FALSE;
return FALSE;
/* this might happen if the database is not up-to-date, not an error */
if (access (path, R_OK) != 0) {
if (errno == ENOENT)
g_warning ("cannot find source message %s: "
"the database is not up-to-date", path);
if (errno == ENOENT)
g_warning ("cannot find source message %s: "
"the database is not up-to-date", path);
else
g_warning ("cannot read source message %s: %s", path,
strerror (errno));
return FALSE;
}
if (!mu_maildir_link (path, linksdir))
return FALSE;
err = NULL;
if (!mu_maildir_link (path, linksdir, &err)) {
if (err) {
g_warning ("%s", err->message ? err->message : "unknown error");
g_error_free (err);
}
return FALSE;
}
return TRUE;
}

6
src/tests/test-mu-maildir.c
View File

@ -42,7 +42,7 @@ test_mu_maildir_mkmdir_01 (void)
mdir = g_strdup_printf ("%s%c%s", tmpdir, G_DIR_SEPARATOR,
"cuux");
g_assert_cmpuint (mu_maildir_mkdir (mdir, 0755, FALSE),
g_assert_cmpuint (mu_maildir_mkdir (mdir, 0755, FALSE, NULL),
==, TRUE);
for (i = 0; i != G_N_ELEMENTS(subs); ++i) {
@ -76,7 +76,7 @@ test_mu_maildir_mkmdir_02 (void)
mdir = g_strdup_printf ("%s%c%s", tmpdir, G_DIR_SEPARATOR,
"cuux");
g_assert_cmpuint (mu_maildir_mkdir (mdir, 0755, TRUE),
g_assert_cmpuint (mu_maildir_mkdir (mdir, 0755, TRUE, NULL),
==, TRUE);
for (i = 0; i != G_N_ELEMENTS(subs); ++i) {
@ -113,7 +113,7 @@ test_mu_maildir_mkmdir_03 (void)
/* this must fail */
g_test_log_set_fatal_handler ((GTestLogFatalFunc)ignore_error, NULL);
g_assert_cmpuint (mu_maildir_mkdir (NULL, 0755, TRUE),
g_assert_cmpuint (mu_maildir_mkdir (NULL, 0755, TRUE, NULL),
==, FALSE);
}