add package.install_always policy

4 files changed, 10 insertions, 3 deletions

diff --git a/tests/projects/c/library_with_cmakelists/xmake.lua b/tests/projects/c/library_with_cmakelists/xmake.lua
index e5646c372..057aea584 100644
--- a/tests/projects/c/library_with_cmakelists/xmake.lua
+++ b/tests/projects/c/library_with_cmakelists/xmake.lua
@@ -3,6 +3,7 @@ add_rules("mode.debug", "mode.release")
 package("foo")
     add_deps("cmake")
     set_sourcedir(path.join(os.scriptdir(), "foo"))
+    set_policy("package.install_always", true)
     on_install(function (package)
         local configs = {}
         table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:debug() and "Debug" or "Release"))
diff --git a/xmake/core/project/policy.lua b/xmake/core/project/policy.lua
index f3c29ff54..8148a37e2 100644
--- a/xmake/core/project/policy.lua
+++ b/xmake/core/project/policy.lua
@@ -67,6 +67,8 @@ function policy.policies()
             ["package.fetch_only"]               = {description = "Only fetch packages on system.", type = "boolean"},
             -- only install packages from remote
             ["package.install_only"]             = {description = "Only install packages from remote.", type = "boolean"},
+            -- always install packages every time
+            ["package.install_always"]           = {description = "Always install packages every time.", type = "boolean"},
             -- use includes as external header files? e.g. -isystem ..
             ["package.include_external_headers"] = {description = "Use includes as external headers.", type = "boolean"},
             -- inherit the configs from the external command arguments, e.g. toolchains, `xmake f --toolchain=`
diff --git a/xmake/modules/private/action/require/impl/package.lua b/xmake/modules/private/action/require/impl/package.lua
index 71f75d418..0608a3960 100644
--- a/xmake/modules/private/action/require/impl/package.lua
+++ b/xmake/modules/private/action/require/impl/package.lua
@@ -949,9 +949,9 @@ end
 -- @see https://github.com/xmake-io/xmake/issues/2719
 function _compatible_with_previous_librarydeps(package, opt)
 
-    -- skip to check compatibility?
+    -- skip to check compatibility if installation has been finished
     opt = opt or {}
-    if opt.check_compatibility == false then
+    if opt.install_finished then
         return true
     end
 
@@ -1036,9 +1036,13 @@ end
 
 -- this package should be install?
 function should_install(package, opt)
+    opt = opt or {}
     if package:is_template() then
         return false
     end
+    if not opt.install_finished and package:policy("package.install_always") then
+        return true
+    end
     if package:exists() and _compatible_with_previous_librarydeps(package, opt) then
         return false
     end
diff --git a/xmake/modules/private/action/require/install.lua b/xmake/modules/private/action/require/install.lua
index f6d02717e..ee5e56f95 100644
--- a/xmake/modules/private/action/require/install.lua
+++ b/xmake/modules/private/action/require/install.lua
@@ -35,7 +35,7 @@ function _check_missing_packages(packages)
     local packages_missing = {}
     local optional_missing = {}
     for _, instance in ipairs(packages) do
-        if package.should_install(instance, {check_compatibility = false}) or (instance:is_fetchonly() and not instance:exists()) then
+        if package.should_install(instance, {install_finished = true}) or (instance:is_fetchonly() and not instance:exists()) then
             if instance:is_optional() then
                 optional_missing[instance:name()] = instance
             else