gnu: Add csvkit.

* gnu/packages/wireservice.scm (csvkit): New variable.
* gnu/packages/patches/csvkit-fix-tests.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/local.mk

@@ -742,6 +742,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/cpufrequtils-fix-aclocal.patch		\
   %D%/packages/patches/crawl-upgrade-saves.patch		\
   %D%/packages/patches/crda-optional-gcrypt.patch		\
+  %D%/packages/patches/csvkit-fix-tests.patch			\
   %D%/packages/patches/clucene-contribs-lib.patch               \
   %D%/packages/patches/cube-nocheck.patch			\
   %D%/packages/patches/cursynth-wave-rand.patch			\

gnu/packages/patches/csvkit-fix-tests.patch

@@ -0,0 +1,45 @@
+diff --git a/tests/test_utilities/test_csvsql.py b/tests/test_utilities/test_csvsql.py
+index e6ec4af..4f47980 100644
+--- a/tests/test_utilities/test_csvsql.py
++++ b/tests/test_utilities/test_csvsql.py
+@@ -197,7 +197,7 @@ class TestCSVSQL(CSVKitTestCase, EmptyFileTests):
+         utility.run()
+         output = output_file.getvalue()
+         output_file.close()
+-        self.assertEqual(output, 'a,b,c\n1,2,3\n0,5,6\n')
++        self.assertEqual(output, 'a,b,c\n1,2.0,3.0\n0,5.0,6.0\n')
+
+     def test_no_prefix_unique_constraint(self):
+         self.get_output(['--db', 'sqlite:///' + self.db_file, '--insert', 'examples/dummy.csv', '--unique-constraint', 'a'])
+diff --git a/tests/test_utilities/test_sql2csv.py b/tests/test_utilities/test_sql2csv.py
+index a0c3d3e..babcfd6 100644
+--- a/tests/test_utilities/test_sql2csv.py
++++ b/tests/test_utilities/test_sql2csv.py
+@@ -121,23 +121,23 @@ class TestSQL2CSV(CSVKitTestCase, EmptyFileTests):
+         input_file.close()
+
+     def test_unicode(self):
+-        expected = self.csvsql('examples/test_utf8.csv')
++        self.csvsql('examples/test_utf8.csv')
+         csv = self.get_output(['--db', 'sqlite:///' + self.db_file, '--query', 'select * from foo'])
+-        self.assertEqual(csv.strip(), expected)
++        self.assertEqual(csv.strip(), 'foo,bar,baz\n1.0,2.0,3\n4.0,5.0,ʤ')
+
+     def test_no_header_row(self):
+         self.csvsql('examples/dummy.csv')
+         csv = self.get_output(['--db', 'sqlite:///' + self.db_file, '--no-header-row', '--query', 'select * from foo'])
+
+         self.assertTrue('a,b,c' not in csv)
+-        self.assertTrue('1,2,3' in csv)
++        self.assertTrue('1,2.0,3.0' in csv)
+
+     def test_linenumbers(self):
+         self.csvsql('examples/dummy.csv')
+         csv = self.get_output(['--db', 'sqlite:///' + self.db_file, '--linenumbers', '--query', 'select * from foo'])
+
+         self.assertTrue('line_number,a,b,c' in csv)
+-        self.assertTrue('1,1,2,3' in csv)
++        self.assertTrue('1,1,2.0,3.0' in csv)
+
+     def test_wildcard_on_sqlite(self):
+         self.csvsql('examples/iris.csv')

gnu/packages/wireservice.scm

@@ -19,6 +19,7 @@
 (define-module (gnu packages wireservice)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix build-system python)
+  #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix packages)
   #:use-module (gnu packages)
@@ -191,3 +192,75 @@ (define-public python-agate-excel
     (synopsis "Add read support for Excel files (xls and xlsx) to agate")
     (description "@code{agateexcel} uses a monkey patching pattern to add read
 for xls and xlsx files support to all @code{agate.Table} instances.")))
+
+(define-public csvkit
+  (package
+    (name "csvkit")
+    (version "1.0.4")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "csvkit" version))
+              (sha256
+               (base32
+                "1830lb95rh1iyi3drlwxzb6y3pqkii0qiyzd40c1kvhvaf1s6lqk"))
+              (patches (search-patches "csvkit-fix-tests.patch"))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("python-psycopg2" ,python-psycopg2) ;; Used to test PostgreSQL support.
+       ("python-sphinx" ,python-sphinx)
+       ("python-sphinx-rtd-theme" ,python-sphinx-rtd-theme)))
+    (inputs
+     `(("python-agate-dbf" ,python-agate-dbf)
+       ("python-agate-excel" ,python-agate-excel)
+       ("python-agate-sql" ,python-agate-sql)
+       ("python-six" ,python-six)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'install-docs
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out  (assoc-ref outputs "out"))
+                    (man1 (string-append out "/share/man/man1")))
+               (with-directory-excursion "docs"
+                 (invoke "make" "man")
+                 (copy-recursively "_build/man" man1))
+               #t))))))
+    (home-page "https://csvkit.rtfd.org")
+    (synopsis "Command-line tools for working with CSV")
+    (description "csvkit is a suite of command-line tools for converting to
+and working with CSV.  It provides the following commands:
+@itemize
+@item Input:
+  @itemize
+  @item @command{in2csv}: Convert various formats to CSV.
+  @item @command{sql2csv}: Execute SQL commands on a database and return the
+data as CSV.
+  @end itemize
+@item Processing:
+  @itemize
+  @item @command{csvclean}: Remove common syntax errors.
+  @item @command{csvcut}: Filter and truncate CSV files.
+  @item @command{csvgrep}: Filter tabular data to only those rows where
+certain columns contain a given value or match a regular expression.
+  @item @command{csvjoin}: Merges two or more CSV tables together using a
+method analogous to SQL JOIN operation.
+  @item @command{csvsort}: Sort CSV files.
+  @item @command{csvstack}: Stack up the rows from multiple CSV files,
+optionally adding a grouping value to each row.
+  @end itemize
+@item Output and analysis:
+  @itemize
+  @item @command{csvformat}: Convert a CSV file to a custom output format.
+  @item @command{csvjson}: Converts a CSV file into JSON or GeoJSON.
+  @item @command{csvlook}: Renders a CSV to the command line in a
+Markdown-compatible, fixed-width format.
+  @item @command{csvpy}: Loads a CSV file into a @code{agate.csv.Reader}
+object and then drops into a Python shell so the user can inspect the data
+however they see fit.
+  @item @command{csvsql}: Generate SQL statements for a CSV file or execute
+those statements directly on a database.
+  @item @command{csvstat}: Prints descriptive statistics for all columns in a
+CSV file.
+  @end itemize
+@end itemize")
+    (license license:expat)))