Remove dependency on `hostname` (#182)

yadm

@@ -473,7 +473,7 @@ function set_local_alt_values() {
 
   local_host="$(config local.hostname)"
   if [ -z "$local_host" ] ; then
-    local_host=$(hostname)
+    local_host=$(uname -n)
     local_host=${local_host%%.*} # trim any domain from hostname
   fi
 

yadm.1

@@ -496,7 +496,7 @@ See the CONFIGURATION section for more details about setting
 .BR hostname , " h
 Valid if the value matches the short hostname.
 Hostname is calculated by running
-.BR "hostname" ,
+.BR "uname -n" ,
 and trimming off any domain.
 .TP
 .B default
@@ -629,7 +629,7 @@ During processing, the following variables are available in the template:
  -------------   -------------   --------------------------
  yadm.class      YADM_CLASS      Locally defined yadm class
  yadm.distro     YADM_DISTRO     lsb_release -si
- yadm.hostname   YADM_HOSTNAME   hostname (without domain)
+ yadm.hostname   YADM_HOSTNAME   uname -n (without domain)
  yadm.os         YADM_OS         uname -s
  yadm.user       YADM_USER       id -u -n
  yadm.source     YADM_SOURCE     Template filename

yadm.spec

@@ -8,11 +8,6 @@ URL: https://yadm.io
 License: GPL-3.0-only
 Requires: bash
 Requires: git
-%if 0%{?fedora} || 0%{?rhel_version} || 0%{?centos_version} >= 700
-Requires: /usr/bin/hostname
-%else
-Requires: /bin/hostname
-%endif
 
 Source: %{name}.tar.gz
 BuildRoot: %{_tmppath}/%{name}-%{version}-build