po4a: format, make msgmerge command available

pkgs/development/perl-modules/Po4a/default.nix

@@ -1,27 +1,29 @@
-{ stdenv
-, lib
-, fetchurl
-, docbook_xsl
-, docbook_xsl_ns
-, gettext
-, libxslt
-, glibcLocales
-, docbook_xml_dtd_45
-, docbook_sgml_dtd_41
-, opensp
-, bash
-, fetchpatch
-, perl
-, buildPerlPackage
-, ModuleBuild
-, TextWrapI18N
-, LocaleGettext
-, SGMLSpm
-, UnicodeLineBreak
-, PodParser
-, YAMLTiny
-, SyntaxKeywordTry
-, writeShellScriptBin
+{
+  stdenv,
+  lib,
+  fetchurl,
+  docbook_xsl,
+  docbook_xsl_ns,
+  gettext,
+  libxslt,
+  glibcLocales,
+  docbook_xml_dtd_45,
+  docbook_sgml_dtd_41,
+  opensp,
+  bash,
+  fetchpatch,
+  perl,
+  buildPerlPackage,
+  makeWrapper,
+  ModuleBuild,
+  TextWrapI18N,
+  LocaleGettext,
+  SGMLSpm,
+  UnicodeLineBreak,
+  PodParser,
+  YAMLTiny,
+  SyntaxKeywordTry,
+  writeShellScriptBin,
 }:
 
 buildPerlPackage rec {
@@ -41,14 +43,14 @@ buildPerlPackage rec {
     # shellscript that suffices for the tests in t/fmt/tex/, i.e. it looks up
     # article.cls to an existing file, but doesn't find article-wrong.cls.
     let
-      kpsewhich-stub = writeShellScriptBin "kpsewhich"
-        ''[[ $1 = "article.cls" ]] && echo /dev/null'';
+      kpsewhich-stub = writeShellScriptBin "kpsewhich" ''[[ $1 = "article.cls" ]] && echo /dev/null'';
     in
     [
       gettext
       libxslt
       docbook_xsl
       docbook_xsl_ns
+      makeWrapper
       ModuleBuild
       docbook_xml_dtd_45
       docbook_sgml_dtd_41
@@ -62,19 +64,21 @@ buildPerlPackage rec {
       url = "https://github.com/mquinson/po4a/commit/28fe52651eb8096d97d6bd3a97b3168522ba5306.patch";
       hash = "sha256-QUXxkSzcnwRvU+2y2KoBXmtfE8qTZ2BV0StkJHqZehQ=";
     })
-    ];
+  ];
 
   # TODO: TermReadKey was temporarily removed from propagatedBuildInputs to unfreeze the build
-  propagatedBuildInputs = lib.optionals (!stdenv.hostPlatform.isMusl) [
-    TextWrapI18N
-  ] ++ [
-    LocaleGettext
-    SGMLSpm
-    UnicodeLineBreak
-    PodParser
-    YAMLTiny
-    SyntaxKeywordTry
-  ];
+  propagatedBuildInputs =
+    lib.optionals (!stdenv.hostPlatform.isMusl) [
+      TextWrapI18N
+    ]
+    ++ [
+      LocaleGettext
+      SGMLSpm
+      UnicodeLineBreak
+      PodParser
+      YAMLTiny
+      SyntaxKeywordTry
+    ];
 
   buildInputs = [ bash ];
 
@@ -87,8 +91,10 @@ buildPerlPackage rec {
   '';
 
   buildPhase = ''
+    runHook preBuild
     perl Build.PL --install_base=$out --install_path="lib=$out/${perl.libPrefix}"
     ./Build build
+    runHook postBuild
   '';
 
   # Disabling tests on musl
@@ -101,21 +107,30 @@ buildPerlPackage rec {
   doCheck = (!stdenv.hostPlatform.isMusl) && (!stdenv.hostPlatform.isDarwin);
 
   checkPhase = ''
+    runHook preCheck
     export SGML_CATALOG_FILES=${docbook_sgml_dtd_41}/sgml/dtd/docbook-4.1/docbook.cat
     ./Build test
+    runHook postCheck
   '';
 
   installPhase = ''
+    runHook preInstall
     ./Build install
-    for f in $out/bin/*; do
-      substituteInPlace $f --replace "#! /usr/bin/env perl" "#!${perl}/bin/perl"
-      substituteInPlace $f --replace "exec perl" "exec ${perl}/bin/perl"
+    for f in $out/bin/{msguntypot,po4a,po4a-gettextize,po4a-normalize,po4a-translate,po4a-updatepo}; do
+      substituteInPlace $f --replace-fail "exec perl" "exec ${lib.getExe perl}"
     done
+    runHook postInstall
+  '';
+
+  postFixup = ''
+    wrapProgram $out/bin/po4a \
+        --prefix PATH : ${lib.makeBinPath [ gettext ]}
   '';
 
   meta = {
     description = "Tools for helping translation of documentation";
     homepage = "https://po4a.org";
     license = with lib.licenses; [ gpl2Plus ];
+    mainProgram = "po4a";
   };
 }