Overview
| Comment: | Added basic "getchildren" implementation in Tcl |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | tcl-ops |
| Files: | files | file ages | folders |
| SHA1: | ee13ee5aa491c95977832ce005e40ce61e4b128c |
| User & Date: | rkeene on 2014-11-07 08:48:19 |
| Other Links: | manifest | tags |
Context
|
2014-11-07
| ||
| 11:36 | Add "getattr" implementation check-in: d64c2e9bf7 user: rkeene tags: tcl-ops | |
| 08:48 | Added basic "getchildren" implementation in Tcl check-in: ee13ee5aa4 user: rkeene tags: tcl-ops | |
| 07:20 | Converted global variables to not be part of a struct check-in: f277407cbc user: rkeene tags: tcl-ops | |
Changes
Modified appfsd.c from [a9240a597b] to [16b07e2510].
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if (retval != TCL_OK) {
APPFS_DEBUG("Tcl command failed, ::errorInfo contains: %s\n", Tcl_GetVar(interp, "::errorInfo", 0));
}
return(retval);
}
/*
* AppFS: Request that a host's package index be updated locally
*/
static void appfs_update_index(const char *hostname) {
Tcl_Interp *interp;
int tcl_ret;
APPFS_DEBUG("Enter: hostname = %s", hostname);
interp = appfs_TclInterp();
if (interp == NULL) {
return;
}
tcl_ret = appfs_Tcl_Eval(interp, 2, "::appfs::getindex", hostname);
if (tcl_ret != TCL_OK) {
APPFS_DEBUG("Call to ::appfs::getindex failed: %s", Tcl_GetStringResult(interp));
return;
}
return;
}
/*
* AppFS: Get a SHA1 from a host
* Returns a local file name, or NULL if it cannot be fetched
*/
static const char *appfs_getfile(const char *hostname, const char *sha1) {
Tcl_Interp *interp;
char *retval;
int tcl_ret;
interp = appfs_TclInterp();
if (interp == NULL) {
return(NULL);
}
tcl_ret = appfs_Tcl_Eval(interp, 3, "::appfs::download", hostname, sha1);
if (tcl_ret != TCL_OK) {
APPFS_DEBUG("Call to ::appfs::download failed: %s", Tcl_GetStringResult(interp));
return(NULL);
}
retval = strdup(Tcl_GetStringResult(interp));
return(retval);
}
/*
* AppFS: Update the manifest for a specific package (by the package SHA1) on
* a given host
*/
static void appfs_update_manifest(const char *hostname, const char *sha1) {
Tcl_Interp *interp;
int tcl_ret;
interp = appfs_TclInterp();
if (interp == NULL) {
return;
}
tcl_ret = appfs_Tcl_Eval(interp, 3, "::appfs::getpkgmanifest", hostname, sha1);
if (tcl_ret != TCL_OK) {
APPFS_DEBUG("Call to ::appfs::getpkgmanifest failed: %s", Tcl_GetStringResult(interp));
return;
}
return;
}
/*
* Determine the UID for the user making the current FUSE filesystem request.
* This will be used to lookup the user's home directory so we can search for
* locally modified files.
*/
static uid_t appfs_get_fsuid(void) {
struct fuse_context *ctx;
................................................................................
static int appfs_fuse_getattr(const char *path, struct stat *stbuf) {
struct appfs_pathinfo pathinfo;
int res = 0;
APPFS_DEBUG("Enter (path = %s, ...)", path);
pathinfo.type = APPFS_PATHTYPE_INVALID;
res = appfs_get_path_info(path, &pathinfo, NULL);
if (res != 0) {
return(res);
}
memset(stbuf, 0, sizeof(struct stat));
stbuf->st_mtime = pathinfo.time;
stbuf->st_ctime = pathinfo.time;
stbuf->st_atime = pathinfo.time;
stbuf->st_ino = pathinfo.inode;
................................................................................
}
}
return res;
}
static int appfs_fuse_readdir(const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) {
struct appfs_pathinfo pathinfo;
struct appfs_children *children, *child;
int retval;
APPFS_DEBUG("Enter (path = %s, ...)", path);
retval = appfs_get_path_info(path, &pathinfo, &children);
if (retval != 0) {
return(retval);
}
filler(buf, ".", NULL, 0);
filler(buf, "..", NULL, 0);
for (child = children; child; child = child->_next) {
filler(buf, child->name, NULL, 0);
}
// appfs_free_list_children(children);
return(0);
}
static int appfs_fuse_open(const char *path, struct fuse_file_info *fi) {
struct appfs_pathinfo pathinfo;
const char *real_path;
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if (retval != TCL_OK) {
APPFS_DEBUG("Tcl command failed, ::errorInfo contains: %s\n", Tcl_GetVar(interp, "::errorInfo", 0));
}
return(retval);
}
/*
* Determine the UID for the user making the current FUSE filesystem request.
* This will be used to lookup the user's home directory so we can search for
* locally modified files.
*/
static uid_t appfs_get_fsuid(void) {
struct fuse_context *ctx;
................................................................................
static int appfs_fuse_getattr(const char *path, struct stat *stbuf) {
struct appfs_pathinfo pathinfo;
int res = 0;
APPFS_DEBUG("Enter (path = %s, ...)", path);
pathinfo.type = APPFS_PATHTYPE_DIRECTORY;
pathinfo.typeinfo.dir.childcount = 0;
memset(stbuf, 0, sizeof(struct stat));
stbuf->st_mtime = pathinfo.time;
stbuf->st_ctime = pathinfo.time;
stbuf->st_atime = pathinfo.time;
stbuf->st_ino = pathinfo.inode;
................................................................................
}
}
return res;
}
static int appfs_fuse_readdir(const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) {
Tcl_Interp *interp;
Tcl_Obj **children;
int children_count, idx;
int tcl_ret;
int retval;
APPFS_DEBUG("Enter (path = %s, ...)", path);
interp = appfs_TclInterp();
if (interp == NULL) {
return(0);
}
filler(buf, ".", NULL, 0);
filler(buf, "..", NULL, 0);
tcl_ret = appfs_Tcl_Eval(interp, 2, "::appfs::getchildren", path);
if (tcl_ret != TCL_OK) {
APPFS_DEBUG("::appfs::getchildren(%s) failed.", path);
APPFS_DEBUG("Tcl Error is: %s", Tcl_GetStringResult(interp));
return(0);
}
tcl_ret = Tcl_ListObjGetElements(interp, Tcl_GetObjResult(interp), &children_count, &children);
if (tcl_ret != TCL_OK) {
APPFS_DEBUG("Parsing list of children on path %s failed.", path);
APPFS_DEBUG("Tcl Error is: %s", Tcl_GetStringResult(interp));
return(0);
}
for (idx = 0; idx < children_count; idx++) {
filler(buf, Tcl_GetString(children[idx]), NULL, 0);
}
return(0);
}
static int appfs_fuse_open(const char *path, struct fuse_file_info *fi) {
struct appfs_pathinfo pathinfo;
const char *real_path;
|
Modified appfsd.tcl from [e0ad1bdba0] to [88b17c4a86].
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package require sqlite3
package require sha1
namespace eval ::appfs {
variable cachedir "/tmp/appfs-cache"
variable ttl 3600
variable nttl 60
proc _hash_sep {hash {seps 4}} {
for {set idx 0} {$idx < $seps} {incr idx} {
append retval "[string range $hash [expr {$idx * 2}] [expr {($idx * 2) + 1}]]/"
}
append retval "[string range $hash [expr {$idx * 2}] end]"
................................................................................
# Force [parray] to be loaded
catch {
parray does_not_exist
}
set ::appfs::init_called 1
if {![info exists ::appfs::db]} {
file mkdir $::appfs::cachedir
sqlite3 ::appfs::db [file join $::appfs::cachedir cache.db]
}
................................................................................
# Create indexes
db eval {CREATE INDEX IF NOT EXISTS sites_index ON sites (hostname);}
db eval {CREATE INDEX IF NOT EXISTS packages_index ON packages (hostname, package, version, os, cpuArch);}
db eval {CREATE INDEX IF NOT EXISTS files_index ON files (package_sha1, file_name, file_directory);}
}
proc download {hostname hash {method sha1}} {
set url "http://$hostname/appfs/$method/$hash"
set file [_cachefile $url $hash]
if {![file exists $file]} {
return -code error "Unable to fetch (file does not exist: $file)"
}
return $file
................................................................................
db eval {INSERT INTO files (package_sha1, type, time, source, size, perms, file_sha1, file_name, file_directory) VALUES ($package_sha1, $fileInfo(type), $fileInfo(time), $fileInfo(source), $fileInfo(size), $fileInfo(perms), $fileInfo(sha1), $fileInfo(name), $fileInfo(directory) );}
db eval {UPDATE packages SET haveManifest = 1 WHERE sha1 = $package_sha1;}
}
}
return COMPLETE
}
}
|
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package require sqlite3
package require sha1
namespace eval ::appfs {
variable cachedir "/tmp/appfs-cache"
variable ttl 3600
variable nttl 60
# User-replacable function to convert a hostname/hash/method to an URL
proc _construct_url {hostname hash method} {
return "http://$hostname/appfs/$method/$hash"
}
proc _hash_sep {hash {seps 4}} {
for {set idx 0} {$idx < $seps} {incr idx} {
append retval "[string range $hash [expr {$idx * 2}] [expr {($idx * 2) + 1}]]/"
}
append retval "[string range $hash [expr {$idx * 2}] end]"
................................................................................
# Force [parray] to be loaded
catch {
parray does_not_exist
}
set ::appfs::init_called 1
# Load configuration file
set config_file [file join $::appfs::cachedir config]
if {[file exists $config_file]} {
source $config_file
}
if {![info exists ::appfs::db]} {
file mkdir $::appfs::cachedir
sqlite3 ::appfs::db [file join $::appfs::cachedir cache.db]
}
................................................................................
# Create indexes
db eval {CREATE INDEX IF NOT EXISTS sites_index ON sites (hostname);}
db eval {CREATE INDEX IF NOT EXISTS packages_index ON packages (hostname, package, version, os, cpuArch);}
db eval {CREATE INDEX IF NOT EXISTS files_index ON files (package_sha1, file_name, file_directory);}
}
proc download {hostname hash {method sha1}} {
set url [_construct_url $hostname $hash $method]
set file [_cachefile $url $hash]
if {![file exists $file]} {
return -code error "Unable to fetch (file does not exist: $file)"
}
return $file
................................................................................
db eval {INSERT INTO files (package_sha1, type, time, source, size, perms, file_sha1, file_name, file_directory) VALUES ($package_sha1, $fileInfo(type), $fileInfo(time), $fileInfo(source), $fileInfo(size), $fileInfo(perms), $fileInfo(sha1), $fileInfo(name), $fileInfo(directory) );}
db eval {UPDATE packages SET haveManifest = 1 WHERE sha1 = $package_sha1;}
}
}
return COMPLETE
}
proc _parsepath {path} {
set path [string trim $path "/"]
set path [split $path "/"]
set pathlen [llength $path]
array set retval [list _children sites]
if {$pathlen > 0} {
set retval(hostname) [lindex $path 0]
set retval(_children) packages
if {$pathlen > 1} {
set package [lindex $path 1]
if {[string length $package] == "40" && [regexp {^[a-fA-F0-9]*$} $package]} {
set retval(package_sha1) $package
set retval(_children) files
if {$pathlen > 2} {
set retval(file) [join [lrange $path 2 end] "/"]
} else {
set retval(file) ""
}
return [array get retval]
} else {
set retval(package) $package
set retval(_children) os-cpu
}
if {$pathlen > 2} {
set os_cpu [lindex $path 2]
set os_cpu [split $os_cpu "-"]
set retval(os) [lindex $os_cpu 0]
set retval(cpu) [lindex $os_cpu 1]
set retval(_children) versions
if {$pathlen > 3} {
set retval(version) [lindex $path 3]
set retval(_children) files
set retval(package_sha1) [::appfs::db onecolumn {SELECT sha1 FROM packages WHERE hostname = $retval(hostname) AND os = $retval(os) AND cpuArch = $retval(cpu) AND version = $retval(version);}]
if {$retval(package_sha1) == ""} {
return [list]
}
if {$pathlen > 4} {
set retval(file) [join [lrange $path 4 end] "/"]
} else {
set retval(file) ""
}
}
}
}
}
return [array get retval]
}
proc getchildren {dir} {
array set pathinfo [_parsepath $dir]
switch -- $pathinfo(_children) {
"sites" {
return [::appfs::db eval {SELECT DISTINCT hostname FROM packages;}]
}
"packages" {
catch {
::appfs::getindex $pathinfo(hostname)
}
return [::appfs::db eval {SELECT DISTINCT package FROM packages WHERE hostname = $pathinfo(hostname);}]
}
"os-cpu" {
return [::appfs::db eval {SELECT DISTINCT os || "-" || cpuArch FROM packages WHERE hostname = $pathinfo(hostname) AND package = $pathinfo(package);}]
}
"versions" {
return [::appfs::db eval {
SELECT DISTINCT version FROM packages WHERE hostname = $pathinfo(hostname) AND package = $pathinfo(package) AND os = $pathinfo(os) AND cpuArch = $pathinfo(cpu);
}]
}
"files" {
catch {
::appfs::getpkgmanifest $pathinfo(hostname) $pathinfo(package_sha1)
}
return [::appfs::db eval {SELECT DISTINCT file_name FROM files WHERE package_sha1 = $pathinfo(package_sha1) AND file_directory = $pathinfo(file);}]
}
}
return -code error "Invalid or unacceptable path: $dir"
}
proc getattr {path} {
}
proc openpath {path mode} {
}
}
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