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Initial uninstaller support!
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@icculus
icculus committed Jan 23, 2008
1 parent 804de73 commit c208d09
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Showing 2 changed files with 137 additions and 54 deletions.
19 changes: 19 additions & 0 deletions scripts/localization.lua
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Expand Up @@ -948,6 +948,25 @@ MojoSetup.localization = {
-- (%0) that doesn't exist.
["File %0 not found"] = {
};

-- This is a window title on the message box when asking if user is sure
-- they want to uninstall a package.
["Uninstall"] = {
};

-- This is the text when asking the user if they want to uninstall
-- the package named '%0'.
["Are you sure you want to uninstall '%0'?)"] = {
};

-- This is a window title, shown while the actual uninstall is in process
-- and a progress meter is being shown.
["Uninstalling"] = {
};

-- This is shown to the user in a message box when uninstallation is done.
["Uninstall complete"] = {
};
};

-- end of localization.lua ...
Expand Down
172 changes: 118 additions & 54 deletions scripts/mojosetup_mainline.lua
View file
Expand Up @@ -22,15 +22,23 @@ local function badcmdline()
end


-- This currently counts on (base) ending with a single "/", and not having
-- any strange distortions: "/blah/../blah/.//" would not match "/blah/x",
-- although it _should_ if we parsed it out.
local function make_relative(fname, base)
local baselen = string.len(base)
if string.sub(fname, 0, baselen) == base then
fname = string.sub(fname, baselen+2) -- make it relative.
end
return fname
end


local function manifest_resync(man, fname, _key)
if fname == nil then return end

local fullpath = fname

local destlen = string.len(MojoSetup.destination)
if string.sub(fname, 0, destlen) == MojoSetup.destination then
fname = string.sub(fname, destlen+2) -- make it relative.
end
fname = make_relative(fname, MojoSetup.destination)

if man[fname] == nil then
MojoSetup.logwarning("Tried to resync unknown file '" ..fname.. "' in manifest!")
Expand Down Expand Up @@ -115,11 +123,11 @@ local function do_delete(fname)
if fname == nil then
retval = true
else
if MojoSetup.platform.exists(fname) then
if MojoSetup.platform.unlink(fname) then
MojoSetup.loginfo("Deleted '" .. fname .. "'")
retval = true
end
if not MojoSetup.platform.exists(fname) then
retval = true
elseif MojoSetup.platform.unlink(fname) then
MojoSetup.loginfo("Deleted '" .. fname .. "'")
retval = true
end
end
return retval
Expand All @@ -136,7 +144,7 @@ local function delete_files(filelist, callback, error_is_fatal)
end

if callback ~= nil then
callback(i, max)
callback(fname, i, max)
end
end
end
Expand All @@ -152,7 +160,7 @@ local function delete_rollbacks()
fnames[id] = MojoSetup.rollbackdir .. "/" .. id
end
MojoSetup.rollbacks = {} -- just in case this gets called again...
delete_files(fnames)
delete_files(fnames) -- !!! FIXME: callback for gui queue pump?
end

local function delete_scratchdirs()
Expand Down Expand Up @@ -200,24 +208,29 @@ local function flatten_manifest(man, postprocess)
end


local function prepend_dest_dir(fname)
if fname == "" then
return MojoSetup.destination
end
return MojoSetup.destination .. "/" .. fname
end


-- This gets called by fatal()...must be a global function.
function MojoSetup.revertinstall()
-- (The real revertinstall is set later. This is a stub for startup.)
end

local function real_revertinstall()
if MojoSetup.gui_started then
MojoSetup.gui.final(_("Incomplete installation. We will revert any changes we made."))
end

MojoSetup.loginfo("Cleaning up half-finished installation...")

local function processor(fname)
if fname == "" then
return MojoSetup.destination
end
return MojoSetup.destination .. "/" .. fname
end

-- !!! FIXME: callbacks here.
delete_files(MojoSetup.downloads)
delete_files(flatten_manifest(MojoSetup.manifest, processor))
delete_files(flatten_manifest(MojoSetup.manifest, prepend_dest_dir))
do_rollbacks()
delete_scratchdirs()
end
Expand Down Expand Up @@ -928,7 +941,8 @@ local function install_manifests(desc, key)
root = MojoSetup.destination,
update_url = MojoSetup.install.updateurl,
version = MojoSetup.install.version,
manifest = MojoSetup.manifest
manifest = MojoSetup.manifest,
splash = MojoSetup.install.splash
}

-- now build these things...
Expand All @@ -939,6 +953,25 @@ local function install_manifests(desc, key)
end


local function start_gui(desc, splashfname)
if splashfname ~= nil then
splashfname = 'meta/' .. splashfname
end

if not MojoSetup.gui.start(desc, splashfname) then
MojoSetup.fatal(_("GUI failed to start"))
end

MojoSetup.gui_started = true
end


local function stop_gui()
MojoSetup.gui.stop()
MojoSetup.gui_started = nil
end


local function do_install(install)
MojoSetup.forceoverwrite = nil
MojoSetup.written = 0
Expand Down Expand Up @@ -1352,19 +1385,8 @@ local function do_install(install)
return 1 -- go forward.
end


-- Now make all this happen.

local splashfname = install.splash
if splashfname ~= nil then
splashfname = 'meta/' .. splashfname
end

if not MojoSetup.gui.start(install.description, splashfname) then
MojoSetup.fatal(_("GUI failed to start"))
end

MojoSetup.gui_started = true
start_gui(install.description, install.splash)

-- Make the stages available elsewhere.
MojoSetup.stages = stages
Expand Down Expand Up @@ -1407,8 +1429,7 @@ local function do_install(install)
MojoSetup.downloads = nil
MojoSetup.rollbacks = nil

MojoSetup.gui.stop()
MojoSetup.gui_started = nil
stop_gui()

-- Done with these things. Make them eligible for garbage collection.
stages = nil
Expand All @@ -1433,6 +1454,10 @@ end


local function installer()
MojoSetup.loginfo("Installer starting")

MojoSetup.revertinstall = real_revertinstall -- replace the stub.

-- This dumps the table built from the user's config script using logdebug,
-- so it only spits out crap if debug-level logging is enabled.
MojoSetup.dumptable("MojoSetup.installs", MojoSetup.installs)
Expand All @@ -1452,10 +1477,8 @@ local function installer()
end


local function manifest_management()
MojoSetup.loginfo("Manifest management starting")

local pkg = MojoSetup.info.argv[3]
local function load_manifest(pkg)
local package = nil
if pkg == nil then
badcmdline()
end
Expand All @@ -1472,11 +1495,24 @@ local function manifest_management()
MojoSetup.fatal(MojoSetup.format(
_("Couldn't load manifest file for '%0'"), pkg))
end

-- Move this out of the global...
package = MojoSetup.package
MojoSetup.package = nil
end

-- note that we discard the base directory specified in the manifest, as
-- someone could have moved the installation's folder elsewhere. We'll
-- keep it up to date for loki_update or whatever to use, though.
package.destination = MojoSetup.destination

return package
end


local function manifest_management()
MojoSetup.loginfo("Manifest management starting")
local package = load_manifest(MojoSetup.info.argv[3])

local i = 4
while MojoSetup.info.argv[i] ~= nil do
Expand All @@ -1498,8 +1534,8 @@ local function manifest_management()
MojoSetup.fatal(MojoSetup.format(_("File %0 not found"), fname))
end

manifest_add(MojoSetup.package.manifest, fname, key, nil, nil, nil, nil)
manifest_resync(MojoSetup.package.manifest, fname, key)
manifest_add(package.manifest, fname, key, nil, nil, nil, nil)
manifest_resync(package.manifest, fname, key)

elseif cmd == "delete" then
local fname = MojoSetup.info.argv[i]
Expand All @@ -1509,7 +1545,7 @@ local function manifest_management()
end
MojoSetup.loginfo("Delete '" .. fname .. "' from manifest")
fname = MojoSetup.destination .. "/" .. fname
manifest_delete(MojoSetup.package.manifest, fname)
manifest_delete(package.manifest, fname)

elseif cmd == "resync" then
local fname = MojoSetup.info.argv[i]
Expand All @@ -1522,17 +1558,17 @@ local function manifest_management()
if not MojoSetup.platform..exists(fname) then
MojoSetup.fatal(MojoSetup.format(_("File %0 not found"), fname))
end
manifest_resync(MojoSetup.package.manifest, fname)
manifest_resync(package.manifest, fname)

else
elseif string.match(cmd, "^-") == nil then -- skip "-option" strings
MojoSetup.logerror("Unknown command '" .. cmd .. "'")
badcmdline()
end
end

-- !!! FIXME: duplication with install_manifests()
local perms = "0644" -- !!! FIXME
local basefname = MojoSetup.manifestdir .. "/" .. MojoSetup.package.id
local basefname = MojoSetup.manifestdir .. "/" .. package.id
local lua_fname = basefname .. ".lua"
local xml_fname = basefname .. ".xml"
local txt_fname = basefname .. ".txt"
Expand All @@ -1541,21 +1577,49 @@ local function manifest_management()

-- !!! FIXME: rollback!
delete_files({lua_fname, xml_fname, txt_fname}, nil, false)
MojoSetup.stringtofile(build_lua_manifest(MojoSetup.package), lua_fname, perms, nil, nil)
MojoSetup.stringtofile(build_xml_manifest(MojoSetup.package), xml_fname, perms, nil, nil)
MojoSetup.stringtofile(build_txt_manifest(MojoSetup.package), txt_fname, perms, nil, nil)
MojoSetup.stringtofile(build_lua_manifest(package), lua_fname, perms, nil, nil)
MojoSetup.stringtofile(build_xml_manifest(package), xml_fname, perms, nil, nil)
MojoSetup.stringtofile(build_txt_manifest(package), txt_fname, perms, nil, nil)

MojoSetup.loginfo("manifests rebuilt!")

MojoSetup.package = nil
end


local function uninstaller()
MojoSetup.fatal("Not implemented yet.")
local pkg = MojoSetup.info.argv[3]
if pkg == nil then
badcmdline()
MojoSetup.loginfo("Uninstaller starting")
local package = load_manifest(MojoSetup.info.argv[3])

local title = _("Uninstall")
local question = _("Are you sure you want to uninstall '%0'?")
question = MojoSetup.format(question, package.description)
if MojoSetup.promptyn(title, question, false) then
start_gui(package.description, package.splash)

-- Upvalued so we don't look this up each time...
local ptype = _("Uninstalling")
local callback = function(fname, current, total)
fname = make_relative(fname, MojoSetup.destination)
local percent = calc_percent(current, total)
local component = package.manifest[fname].key
if component == nil then
component = ""
elseif component == MojoSetup.metadatakey then
component = MojoSetup.metadatadesc
end

local item = string.gsub(fname, "^.*/", "", 1) -- chop off dirs...
MojoSetup.gui.progress(ptype, component, percent, item)
return true -- !!! FIXME: need to disable cancel button in UI...
end

local filelist = flatten_manifest(package.manifest, prepend_dest_dir)
delete_files(filelist, callback, true)

MojoSetup.msgbox(title, _("Uninstall complete"))
stop_gui()
end

-- !!! FIXME: postuninstall hook?
end


Expand Down

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