smem: update to v1.5 (python3 compatibility)

smem generally works using the upstream code, but
the --source argument still throws exceptions - add
a patch to resolve those as well.

There is no release on the downloads URL, but a tag
in mercurial - so this now downloads the snapshot that
tag is pointing to.

Signed-off-by: André Draszik <git@andred.net>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-support/smem/smem/0001-smem-fix-support-for-source-option-python3.patch

@@ -0,0 +1,53 @@
+From 3ff78f1f00973393d1a7ee4e467a2bacf1c807f3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <git@andred.net>
+Date: Wed, 5 Feb 2020 16:14:21 +0000
+Subject: [PATCH] smem: fix support for --source option (python3)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Using --source doesn't work without this patch:
+Traceback (most recent call last):
+  File "./smem", line 727, in <module>
+    showpids()
+  File "./smem", line 299, in showpids
+    showtable(pt.keys(), fields, columns.split(), options.sort or 'pss')
+  File "./smem", line 519, in showtable
+    mt = totalmem()
+  File "./smem", line 118, in totalmem
+    _totalmem = memory()['memtotal']
+  File "./smem", line 193, in memory
+    m = f.match(l)
+TypeError: cannot use a string pattern on a bytes-like object
+
+python3's tarfile returns bytes, whereas all of the rest of
+the code assumes str.
+
+Fix the tarfile usage to convert to str before returning the
+results.
+
+Signed-off-by: André Draszik <git@andred.net>
+Upstream-Status: Inappropriate [upstream wants to support python2 & python3]
+---
+ smem | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/smem b/smem
+index 46a3189..54d40dd 100755
+--- a/smem
++++ b/smem
+@@ -90,9 +90,9 @@ class tardata(procdata):
+                 d,f = ti.name.split('/')
+                 yield d
+     def _read(self, f):
+-        return self.tar.extractfile(f).read()
++        return self.tar.extractfile(f).read().decode()
+     def _readlines(self, f):
+-        return self.tar.extractfile(f).readlines()
++        return [l.decode() for l in self.tar.extractfile(f).readlines()]
+     def piduser(self, p):
+         t = self.tar.getmember("%d" % p)
+         if t.uname:
+-- 
+2.23.0.rc1
+

meta-oe/recipes-support/smem/smem_1.5.bb

@@ -9,9 +9,16 @@ SECTION = "Applications/System"
 LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
-SRC_URI = "http://www.selenic.com/${BPN}/download/${BP}.tar.gz"
-SRC_URI[md5sum] = "fe79435c3930389bfdb560255c802162"
-SRC_URI[sha256sum] = "2ea9f878f4cf3c276774c3f7e2a41977a1f2d64f98d2dcb6a15f1f3d84df61ec"
+HG_CHANGESET = "98273ce331bb"
+SRC_URI = "https://selenic.com/repo/${BPN}/archive/${HG_CHANGESET}.tar.bz2;downloadfilename=${BP}.tar.bz2 \
+           file://0001-smem-fix-support-for-source-option-python3.patch"
+SRC_URI[md5sum] = "51c3989779360f42b42ef46b2831be3a"
+SRC_URI[sha256sum] = "161131c686a6d9962a0e96912526dd46308e022d62e3f8acaed5a56fda8e08ce"
+
+UPSTREAM_CHECK_URI = "https://selenic.com/repo/smem/tags"
+UPSTREAM_CHECK_REGEX = "(?P<pver>\d+(\.\d+)+)"
+
+S = "${WORKDIR}/${BPN}-${HG_CHANGESET}"
 
 do_compile() {
         ${CC} ${CFLAGS} ${LDFLAGS} smemcap.c -o smemcap
@@ -21,12 +28,15 @@ do_install() {
         install -d ${D}/${bindir}/
         install -d ${D}/${mandir}/man8
         install -m 0755 ${S}/smem ${D}${bindir}/
+        sed -i -e '1s,#!.*python.*,#!${USRBINPATH}/env python3,' ${D}${bindir}/smem
         install -m 0755 ${S}/smemcap ${D}${bindir}/
         install -m 0644 ${S}/smem.8 ${D}/${mandir}/man8/
 }
-RDEPENDS_${PN} += "python-textutils python-compression python-shell python-codecs"
 
-PACKAGES =+ "smemcap"
+RDEPENDS_${PN} = "python3-core python3-compression"
+RRECOMMENDS_${PN} = "python3-matplotlib python3-numpy"
+
+PACKAGE_BEFORE_PN = "smemcap"
 
 FILES_smemcap = "${bindir}/smemcap"