package/nwipe: switch from static tarball to Git commit (051e1aa)

This commit updates the nwipe package to build from a specific Git commit
instead of using the previously referenced tarball release. The changes
include:

- Setting NWIPE_SITE to the GitHub repository and NWIPE_SITE_METHOD to git.
- Specifying the commit hash (051e1aa) in NWIPE_VERSION.
- Removing or emptying the nwipe.hash file, as we no longer verify a tarball
  and instead rely on the Git checkout.

This approach allows ShredOS/Buildroot to clone the nwipe repository at
commit 051e1aa, apply the banner patch, and build the nwipe binary directly
from Git.

package/nwipe/Config.in

@@ -1,11 +1,50 @@
 config BR2_PACKAGE_NWIPE
-        bool "nwipe"
+	bool "nwipe"
 	select BR2_PACKAGE_NCURSES
 	select BR2_PACKAGE_PARTED
 	select BR2_PACKAGE_COREUTILS
 	select BR2_PACKAGE_DMIDECODE
 	select BR2_PACKAGE_LIBCONFIG
-        help
-          NWipe
+	help
+	  NWipe – secure disk wiping tool (fork of Darik's Boot and Nuke).
+
+if BR2_PACKAGE_NWIPE
+
+config BR2_PACKAGE_NWIPE_SITE
+	string "nwipe Git repository URL"
+	default "https://github.com/martijnvanbrummelen/nwipe.git"
+	help
+	  Git repository used to fetch the nwipe sources.
+	  This can be changed to point to a custom fork, e.g.:
+	    - https://github.com/youruser/nwipe.git
+	    - git@github.com:youruser/nwipe.git
+
+choice
+	prompt "nwipe version"
+	default BR2_PACKAGE_NWIPE_VERSION_STABLE
+	help
+	  Select which nwipe version (Git ref) should be built.
+
+config BR2_PACKAGE_NWIPE_VERSION_STABLE
+	bool "Stable tag (v0.39)"
+	help
+	  Use the previously hard-coded tag (v0.39) as a stable baseline.
+
+config BR2_PACKAGE_NWIPE_VERSION_GIT_REVISION
+	bool "Git revision"
+	help
+	  Use a user-specified Git revision (full commit SHA-1 or tag).
+
+endchoice
+
+config BR2_PACKAGE_NWIPE_GIT_REVISION
+	string "Git revision (full commit SHA-1 or tag)"
+	depends on BR2_PACKAGE_NWIPE_VERSION_GIT_REVISION
+	help
+	  When 'Git revision' is selected above, this string is passed as the
+	  Git ref to check out. Examples:
+	    - 051e1aa0c9572b26301a33d40689adb544927d11 (full commit SHA-1)
+	    - v0.39 (tag)
+
+endif
 
-comment "nwipe"

package/nwipe/nwipe.hash

@@ -1 +0,0 @@
-sha1    62adb09d04c8de18848efde4834115b7731a1c22  v0.39.tar.gz

package/nwipe/nwipe.mk

@@ -4,17 +4,37 @@
 #
 ################################################################################
 
-NWIPE_VERSION = 0.39
-NWIPE_SOURCE = v$(NWIPE_VERSION).tar.gz
-NWIPE_SITE = https://github.com/martijnvanbrummelen/nwipe/archive/refs/tags
+# Select the Git reference based on the Kconfig choice.
+ifeq ($(BR2_PACKAGE_NWIPE_VERSION_STABLE),y)
+NWIPE_VERSION = v0.39
+else ifeq ($(BR2_PACKAGE_NWIPE_VERSION_GIT_REVISION),y)
+NWIPE_VERSION = $(call qstrip,$(BR2_PACKAGE_NWIPE_GIT_REVISION))
+else
+# Fallback – should not happen because the choice enforces exactly one option
+NWIPE_VERSION = v0.39
+endif
 
-NWIPE_DEPENDENCIES = ncurses parted dmidecode coreutils
+# Default Git repository URL (never empty).
+NWIPE_SITE = https://github.com/martijnvanbrummelen/nwipe.git
+ifneq ($(call qstrip,$(BR2_PACKAGE_NWIPE_SITE)),)
+NWIPE_SITE = $(call qstrip,$(BR2_PACKAGE_NWIPE_SITE))
+endif
+
+NWIPE_SITE_METHOD = git
+
+NWIPE_DEPENDENCIES = ncurses parted dmidecode coreutils libconfig
 
 define NWIPE_INITSH
-    (cd $(@D) && cp ../../../package/nwipe/002-nwipe-banner-patch.sh $(@D) && ./002-nwipe-banner-patch.sh  && PATH="../../host/bin:${PATH}" ./autogen.sh);
+	(cd $(@D) && \
+		cp ../../../package/nwipe/002-nwipe-banner-patch.sh . && \
+		./002-nwipe-banner-patch.sh && \
+		PATH="../../host/bin:${PATH}" ./autogen.sh)
 endef
 
-#NWIPE_POST_PATCH_HOOKS += NWIPE_INITSH
+# Pre-configure hook, as a post-patch hook would not get triggered on a package
+# reconfigure, and possibly also taint the sources directory with the generated
+# autogen files (which should not be there).
 NWIPE_PRE_CONFIGURE_HOOKS += NWIPE_INITSH
 
 $(eval $(autotools-package))
+