From f7520fd87764cddbde9d6c5d25fdfe5314ec5cbc Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Sat, 27 May 2023 11:38:27 -0700
Subject: [PATCH v4 1/4] Add meson targets to run pgindent

Author:
Reviewed-By:
Discussion: https://postgr.es/m/
Backpatch:
---
 meson.build                 | 38 +++++++++++++++++++++++++++++++++++++
 src/tools/pgindent/pgindent | 12 ++++++++++--
 2 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/meson.build b/meson.build
index 862c955453f..2cfeb60eb07 100644
--- a/meson.build
+++ b/meson.build
@@ -3013,6 +3013,44 @@ run_target('install-test-files',
 
 
 
+###############################################################
+# Indentation and similar targets
+###############################################################
+
+indent_base_cmd = [perl, files('src/tools/pgindent/pgindent'),
+    '--indent', pg_bsd_indent.full_path(),
+    '--sourcetree=@SOURCE_ROOT@']
+indent_depend = [pg_bsd_indent]
+
+# reindent the entire tree
+# Reindent the entire tree
+run_target('indent-tree',
+  command: indent_base_cmd + ['.'],
+  depends: indent_depend
+)
+
+# Reindent the last commit
+run_target('indent-head',
+  command: indent_base_cmd + ['--commit=HEAD'],
+  depends: indent_depend
+)
+
+# Silently check if any file is not corectly indented (fails the build if
+# there are differences)
+run_target('indent-check',
+  command: indent_base_cmd + ['--silent-diff', '.'],
+  depends: indent_depend
+)
+
+# Show a diff of all the unindented files (doesn't fail the build if there are
+# differences)
+run_target('indent-diff',
+  command: indent_base_cmd + ['--show-diff', '.'],
+  depends: indent_depend
+)
+
+
+
 ###############################################################
 # Test prep
 ###############################################################
diff --git a/src/tools/pgindent/pgindent b/src/tools/pgindent/pgindent
index bce63d95daf..08b0c95814f 100755
--- a/src/tools/pgindent/pgindent
+++ b/src/tools/pgindent/pgindent
@@ -23,7 +23,7 @@ my $devnull = File::Spec->devnull;
 
 my ($typedefs_file, $typedef_str, @excludes,
 	$indent, $build, $show_diff,
-	$silent_diff, $help, @commits,);
+	$silent_diff, $sourcetree, $help, @commits,);
 
 $help = 0;
 
@@ -35,7 +35,8 @@ my %options = (
 	"excludes=s" => \@excludes,
 	"indent=s" => \$indent,
 	"show-diff" => \$show_diff,
-	"silent-diff" => \$silent_diff,);
+	"silent-diff" => \$silent_diff,
+	"sourcetree=s" => \$sourcetree);
 GetOptions(%options) || usage("bad command line argument");
 
 usage() if $help;
@@ -53,6 +54,13 @@ $typedefs_file ||= $ENV{PGTYPEDEFS};
 # get indent location for environment or default
 $indent ||= $ENV{PGINDENT} || $ENV{INDENT} || "pg_bsd_indent";
 
+# When invoked from the build directory, change into source tree, otherwise
+# the heuristics in locate_sourcedir() don't work.
+if (defined $sourcetree)
+{
+	chdir $sourcetree;
+}
+
 my $sourcedir = locate_sourcedir();
 
 # if it's the base of a postgres tree, we will exclude the files
-- 
2.38.0