Bug#808394: devscripts: [bts] "bts cache foo" fails when ~/.cache does not already exist ("couldn't mkdir: /home/dkg/.cache/devscripts: No such file or directory")

[Daniel Kahn Gillmor]

Package: devscripts
Version: 2.15.9
Severity: normal

Dear Maintainer,

0 dkg at charlie:~$ bts cache debirf
bts: couldn't mkdir /home/dkg/.cache/devscripts: No such file or directory
2 dkg at charlie:~$ mkdir .cache
0 dkg at charlie:~$ bts cache debirf
Downloading http://bugs.debian.org/debirf ... (cached new version)
 [...]

should be straightforward enough to fix: just mkdir ~/.cache if it
doesn't already exist.

thanks for /usr/bin/bts,

	--dkg


-- Package-specific info:

--- /etc/devscripts.conf ---

--- ~/.devscripts ---
Not present

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.3.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages devscripts depends on:
ii  dpkg-dev     1.18.3
ii  libc6        2.21-4
ii  perl         5.22.1-2
ii  python3      3.4.3-7
pn  python3:any  <none>

Versions of packages devscripts recommends:
pn  at                          <none>
pn  dctrl-tools                 <none>
ii  debian-keyring              2015.11.30
pn  dput | dupload              <none>
pn  equivs                      <none>
ii  fakeroot                    1.20.2-1
ii  file                        1:5.25-2
pn  gnupg                       <none>
pn  libdistro-info-perl         <none>
ii  libencode-locale-perl       1.05-1
pn  libjson-perl                <none>
ii  liblwp-protocol-https-perl  6.06-2
pn  libsoap-lite-perl           <none>
ii  liburi-perl                 1.69-1
ii  libwww-perl                 6.15-1
pn  lintian                     <none>
ii  man-db                      2.7.5-1
ii  patch                       2.7.5-1
pn  patchutils                  <none>
pn  python3-debian              <none>
pn  python3-magic               <none>
ii  sensible-utils              0.0.9
pn  strace                      <none>
pn  unzip                       <none>
pn  wdiff                       <none>
ii  wget                        1.17.1-1
ii  xz-utils                    5.1.1alpha+20120614-2.1

Versions of packages devscripts suggests:
pn  bsd-mailx | mailx            <none>
ii  build-essential              12.1
pn  cvs-buildpackage             <none>
pn  debbindiff                   <none>
ii  devscripts-el                35.12
pn  gnuplot                      <none>
ii  gpgv                         1.4.19-6
pn  libauthen-sasl-perl          <none>
pn  libfile-desktopentry-perl    <none>
pn  libnet-smtp-ssl-perl         <none>
pn  libterm-size-perl            <none>
ii  libtimedate-perl             2.3000-2
pn  libyaml-syck-perl            <none>
pn  mutt                         <none>
ii  openssh-client [ssh-client]  1:7.1p1-4
pn  svn-buildpackage             <none>
pn  w3m                          <none>

-- no debconf information