From 16f81cf0ed747e3d73458af5ddaab1809790eaba Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@redhat.com>
Date: Wed, 28 Aug 2024 15:22:44 +0200
Subject: [PATCH] csfilter-kfp: install a simple man page

... generated from the output of `--help`

Related: https://issues.redhat.com/browse/OSH-736
Closes: https://github.com/csutils/csdiff/pull/201
---
 doc/csfilter-kfp.h2m |  2 ++
 make-srpm.sh         |  4 +++-
 src/CMakeLists.txt   | 19 ++++++++++++++++++-
 src/csfilter-kfp     |  4 ++++
 4 files changed, 27 insertions(+), 2 deletions(-)
 create mode 100644 doc/csfilter-kfp.h2m

diff --git a/doc/csfilter-kfp.h2m b/doc/csfilter-kfp.h2m
new file mode 100644
index 00000000..7ed25d1c
--- /dev/null
+++ b/doc/csfilter-kfp.h2m
@@ -0,0 +1,2 @@
+[NAME]
+csfilter-kfp - tool to filter out known false positives in scan results
diff --git a/make-srpm.sh b/make-srpm.sh
index 0363a768..486d1138 100755
--- a/make-srpm.sh
+++ b/make-srpm.sh
@@ -189,7 +189,8 @@ make version.cc
 %cmake3                                    \\
     -DCSGREP_STATIC=%{?with_static:ON}     \\
     -DPYCSDIFF_PYTHON2=%{?with_python2:ON} \\
-    -DPYCSDIFF_PYTHON3=%{?with_python3:ON}
+    -DPYCSDIFF_PYTHON3=%{?with_python3:ON} \\
+    -DVERSION='%{name}-%{version}-%{release}'
 %cmake3_build
 
 %install
@@ -210,6 +211,7 @@ make version.cc
 %{_bindir}/cstrans-df-run
 %{_datadir}/%{name}
 %{_mandir}/man1/csdiff.1*
+%{_mandir}/man1/csfilter-kfp.1*
 %{_mandir}/man1/csgrep.1*
 %{_mandir}/man1/cshtml.1*
 %{_mandir}/man1/cslinker.1*
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 174de791..3104f96d 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -83,8 +83,12 @@ install(TARGETS
     DESTINATION ${CMAKE_INSTALL_BINDIR})
 
 # install the csfilter-kfp script
+configure_file(
+    ${CMAKE_CURRENT_SOURCE_DIR}/csfilter-kfp
+    ${CMAKE_CURRENT_BINARY_DIR}/csfilter-kfp
+    @ONLY)
 install(PROGRAMS
-    csfilter-kfp
+    ${CMAKE_CURRENT_BINARY_DIR}/csfilter-kfp
     DESTINATION ${CMAKE_INSTALL_BINDIR})
 
 # optionally build statically linked csgrep-static
@@ -190,6 +194,19 @@ if(HELP2MAN)
     create_manpage(cslinker)
     create_manpage(cssort)
     create_manpage(cstrans-df-run)
+
+    # create/install the csfilter-kfp.1 man page
+    add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/csfilter-kfp.1"
+        COMMAND env LC_ALL=C ${HELP2MAN} --no-info --section 1
+            --include "${CMAKE_SOURCE_DIR}/doc/csfilter-kfp.h2m"
+            ${CMAKE_CURRENT_BINARY_DIR}/csfilter-kfp
+            > csfilter-kfp.1 || rm -f csfilter-kfp.1
+        COMMENT "Generating csfilter-kfp man page"
+        VERBATIM)
+    add_custom_target(csfilter-kfp.1 ALL DEPENDS
+        "${CMAKE_CURRENT_BINARY_DIR}/csfilter-kfp.1")
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/csfilter-kfp.1
+            DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 else()
     message(STATUS "help2man not found - documentation will NOT be built")
 endif()
diff --git a/src/csfilter-kfp b/src/csfilter-kfp
index c4642f59..bf3169a1 100755
--- a/src/csfilter-kfp
+++ b/src/csfilter-kfp
@@ -209,6 +209,10 @@ def main():
         "-n", "--dry-run", action="store_true",
         help="do not execute anything, only print the shell script that would be executed")
 
+    parser.add_argument(
+        "--version", action="version", version="@VERSION@",
+        help="print the version string and exit")
+
     # parse command-line arguments
     args = parser.parse_args()