From 844b90ec6b79be309d0bd3d08df36b78d48eee90 Mon Sep 17 00:00:00 2001
From: kartofen <mladenovnasko0@gmail.com>
Date: Mon, 7 Apr 2025 02:39:58 +0300
Subject: refactor install things

---
 README.md        |  5 ++++-
 builtfiles.dd.m4 | 22 ++++++++++++++++++++++
 ninja.m4         | 33 +++++++++++++++++----------------
 scanbuild.m4     | 22 ----------------------
 4 files changed, 43 insertions(+), 39 deletions(-)
 create mode 100644 builtfiles.dd.m4
 delete mode 100644 scanbuild.m4

diff --git a/README.md b/README.md
index be096f3..dc59126 100644
--- a/README.md
+++ b/README.md
@@ -15,9 +15,12 @@ use `ninja` to build, with options like:
 
 * `shared`, `static`, `header` for bulding to a usable library and
 * `test`to run the unit tests.
+* `install` to install the built files in output directories set by `ninja configure`
 
 To change paths and presets using `ninja configure` with an
 appropriate environment variable:
 
-* `BIN=<path>` to set the output directory
 * `PROD=1` to use the non-debug flags
+* `PREFIX=<path>` used for other paths, default `installdir`
+* `LIBDIR=<path>` used for libraries (.so and .a), default `PREFIX/lib`
+* `INCLUDEDIR=<path>` used for c headers, default `PREFIX/include`
diff --git a/builtfiles.dd.m4 b/builtfiles.dd.m4
new file mode 100644
index 0000000..bbbf713
--- /dev/null
+++ b/builtfiles.dd.m4
@@ -0,0 +1,22 @@
+ divert(-1)
+changequote([,])
+
+define(iterate_files, [esyscmd([
+  for f in $(command ls $1/*.$2 2> /dev/null); do
+    echo -n "$f ";
+  done])])
+define(substitue, [esyscmd([
+  for f in $1; do
+    echo -n "${f/$2/$3} ";
+  done])])
+
+define(LIBS,    [iterate_files([build], [so]) iterate_files([build], [a])])
+define(HEADERS, [iterate_files([build], [h])])
+
+divert(0)
+
+ninja_dyndep_version = 1
+
+build libs | substitue(LIBS, BIN, LIBDIR): dyndep | LIBS
+
+build includes | substitue(HEADERS, BIN, INCLUDEDIR): dyndep | HEADERS
diff --git a/ninja.m4 b/ninja.m4
index b6f8d7d..7d6c058 100644
--- a/ninja.m4
+++ b/ninja.m4
@@ -1,5 +1,4 @@
 divert(-1)
-
 changequote([,])
 
 define([getenv], [
@@ -8,21 +7,17 @@ define([getenv], [
     ifelse($2, , [undefine([$1])], [define([$1], [$2])])
 ])])
 
-dnl For installing
-getenv([PREFIX],     [./testprefix])
-getenv([INCLUDEDIR], [PREFIX/include])
-getenv([LIBDIR],     [PREFIX/lib])
-
+# global vars
 getenv([PROD])
 
 divert(0)
 
+# building
+
 cflags  = ifdef([PROD], [],  [-Wall -Wextra -g]) -std=c99 -D_DEFAULT_SOURCE
 bin     = build
 m4flags =
 
-# building
-
 rule cc
   command = gcc $cflags $in -o $out
 rule obj
@@ -46,25 +41,30 @@ build $bin/libmsgpack.so: cc $bin/msgpack.o
 
 # installing
 
+divert(-1)
+getenv([PREFIX],     [installdir])
+getenv([LIBDIR],     [PREFIX/lib])
+getenv([INCLUDEDIR], [PREFIX/include])
+divert(0)
 
-# TODO: make copying better and abstract this somehow
-pattern =
-dir = 
 rule cpy_to_dir
-  command = cp $$(/bin/ls $pattern 2> /dev/null) $dir 2> /dev/null
+  command = cp $$(command ls $pattern 2> /dev/null) $dir
 
 build force: phony
-build $bin/files.dd: m4 scanbuild.m4 | force
+build $bin/files.dd: m4 builtfiles.dd.m4 | force
   m4flags = -D BIN=$bin -D [LIBDIR]=LIBDIR -D [INCLUDEDIR]=INCLUDEDIR
+  description = Generate dynamic dependency from the built files
 
 build libs: cpy_to_dir || $bin/files.dd
   dir = LIBDIR
-  pattern = $bin/*.{so,a}
+  pattern = $bin/*.a $bin/*.so
   dyndep = $bin/files.dd
+  description = Install library files to 'LIBDIR'
 build includes: cpy_to_dir || $bin/files.dd
   dir = INCLUDEDIR
   pattern = $bin/*.h
   dyndep = $bin/files.dd
+  description = Install header files to 'INCLUDEDIR'
 
 # testing
 
@@ -93,8 +93,9 @@ default ifdef([PROD], [static], [test])
 
 rule regen
   command = m4 ninja.m4 > build.ninja
-  generator=1
-  
+  generator = 1
+  description = Regen build.ninja
+
 build build.ninja: regen ninja.m4
 build configure:   regen
 
diff --git a/scanbuild.m4 b/scanbuild.m4
deleted file mode 100644
index ba7b8ce..0000000
--- a/scanbuild.m4
+++ /dev/null
@@ -1,22 +0,0 @@
-divert(-1)
-
-changequote([,])
-
-define(iterate_files, [esyscmd([for f in $(/bin/ls $1/*.$2); do echo -n "$f "; done])])
-define(substitue, [esyscmd([for f in "$1"; do echo -n "${f/$2/$3} "; done])])
-
-define(LIBS_STATIC, [iterate_files([build], [a])])
-define(LIBS_SHARED, [iterate_files([build], [so])])
-define(HEADERS,     [iterate_files([build], [h])])
-
-divert(0)
-ninja_dyndep_version = 1
-
-build libs | dnl
-substitue(LIBS_STATIC, BIN, LIBDIR)dnl
-substitue(LIBS_SHARED, BIN, LIBDIR)dnl
-: dyndep | LIBS_STATIC LIBS_SHARED
-
-build includes | dnl
-substitue(HEADERS, BIN, INCLUDEDIR)dnl
-: dyndep | HEADERS
-- 
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