nitpm: support installing a specific package version

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/src/picnit.nit b/src/picnit.nit
index bac74eb..753492b 100644 (file)
--- a/src/picnit.nit
+++ b/src/picnit.nit
@@ -55,7 +55,7 @@ class CommandInstall
        super Command
 
        redef fun name do return "install"
        super Command
 
        redef fun name do return "install"

-       redef fun usage do return "picnit install [package0 [package1 ...]]"
+       redef fun usage do return "picnit install [package0[=version] [package1 ...]]"

        redef fun description do return "Install packages by name, Git repository address or from the local package.ini"
 
        redef fun apply(args)
        redef fun description do return "Install packages by name, Git repository address or from the local package.ini"
 
        redef fun apply(args)

@@ -141,12 +141,12 @@ class CommandInstall
                                abort
                        end
 
                                abort
                        end
 

-                       install_from_git(git_repo, package_id)
+                       install_from_git(git_repo, package_id, version)

                else
                        var name = package_id.git_name
                        if name != null and name != "." and not name.is_empty then
                                name = name.to_lower
                else
                        var name = package_id.git_name
                        if name != null and name != "." and not name.is_empty then
                                name = name.to_lower

-                               install_from_git(package_id, name)
+                               install_from_git(package_id, name, version)

                        else
                                print_error "Failed to infer the package name"
                                exit 1
                        else
                                print_error "Failed to infer the package name"
                                exit 1

@@ -154,17 +154,21 @@ class CommandInstall
                end
        end
 
                end
        end
 

-       private fun install_from_git(git_repo, name: String)
+       private fun install_from_git(git_repo, name: String, version: nullable String)

        do
                check_git
 
                var target_dir = picnit_lib_dir / name
        do
                check_git
 
                var target_dir = picnit_lib_dir / name

+               if version != null then target_dir += "=" + version

                if target_dir.file_exists then
                        print_error "Already installed"
                        exit 1
                end
 
                if target_dir.file_exists then
                        print_error "Already installed"
                        exit 1
                end
 

-               var cmd = "git clone {git_repo.escape_to_sh} {target_dir.escape_to_sh}"
+               var cmd_branch = ""
+               if version != null then cmd_branch = "--branch '{version}'"
+
+               var cmd = "git clone --depth 1 {cmd_branch} {git_repo.escape_to_sh} {target_dir.escape_to_sh}"

                if verbose then print "+ {cmd}"
 
                if "NIT_TESTING".environ == "true" then
                if verbose then print "+ {cmd}"
 
                if "NIT_TESTING".environ == "true" then