cue: fix EXTRA settings for build action

- support CLEAN_DEPS=NO to leave dependencies uncleaned
  (fixes #48)

.appveyor.yml

@@ -80,6 +80,7 @@ environment:
     APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
   - CMP: vs2019
     BASE: 3.15
+    CLEAN_DEPS: NO
     APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
   - CMP: vs2019
     BASE: 3.14

.travis.yml

@@ -98,7 +98,7 @@ jobs:
   - env: SET=test01 BCFG=static-debug
     dist: bionic
 
-  - env: SET=test01
+  - env: SET=test01 CLEAN_DEPS=NO
     dist: trusty
 
   - env: SET=test01 BCFG=static-debug

README.md

@@ -251,6 +251,10 @@ location for the dependency builds. [default is `$HOME/.cache`]
 Set `PARALLEL_MAKE` to the number of parallel make jobs that you want your
 build to use. [default is the number of CPUs on the runner]
 
+Set `CLEAN_DEPS` to `NO` if you want to leave the object file directories
+(`**/O.*`) in the cached dependencies. [default is to run `make clean`
+after building a dependency]
+
 Service specific options are described in the README files
 in the service specific subdirectories:
 

cue.py

@@ -71,6 +71,9 @@ def detect_context():
     if 'CHOCO' in os.environ:
         ci['choco'].extend(os.environ['CHOCO'].split())
 
+    if 'APT' in os.environ:
+        ci['apt'].extend(os.environ['APT'].split())
+
     ci['test'] = True
     if 'TEST' in os.environ and os.environ['TEST'].lower() == 'no':
         ci['test'] = False
@@ -79,8 +82,14 @@ def detect_context():
     if 'PARALLEL_MAKE' in os.environ:
         ci['parallel_make'] = os.environ['PARALLEL_MAKE']
 
-    logger.debug('Detected a build hosted on %s, using %s on %s (%s) configured as %s (test: %s)',
-                 ci['service'], ci['compiler'], ci['os'], ci['platform'], ci['configuration'], ci['test'])
+    ci['clean_deps'] = True
+    if 'CLEAN_DEPS' in os.environ and os.environ['CLEAN_DEPS'].lower() == 'no':
+        ci['clean_deps'] = False
+
+    logger.debug('Detected a build hosted on %s, using %s on %s (%s) configured as %s '
+                 + '(test: %s, clean_deps: %s)',
+                 ci['service'], ci['compiler'], ci['os'], ci['platform'], ci['configuration'],
+                 ci['test'], ci['clean_deps'])
 
 
 curdir = os.getcwd()
@@ -120,6 +129,7 @@ def clear_lists():
     ci['configuration'] = '<unknown>'
     ci['scriptsdir'] = ''
     ci['choco'] = ['make']
+    ci['apt'] = []
 
 
 clear_lists()
@@ -634,6 +644,21 @@ def setup_for_build(args):
             extra_makeargs.append(os.environ[tag])
 
 
+def fix_etc_hosts():
+    # Several travis-ci images throw us a curveball in /etc/hosts
+    # by including two entries for localhost.  The first for 127.0.1.1
+    # causes epicsSockResolveTest to fail.
+    #  cat /etc/hosts
+    #  ...
+    #  127.0.1.1 localhost localhost ip4-loopback
+    #  127.0.0.1 localhost nettuno travis vagrant travis-job-....
+
+    logger.debug("EXEC sudo sed -ie '/^127\.0\.1\.1/ s|localhost\s*||g' /etc/hosts")
+    sys.stdout.flush()
+    exitcode = sp.call(['sudo', 'sed', '-ie', '/^127\.0\.1\.1/ s|localhost\s*||g', '/etc/hosts'])
+    logger.debug('EXEC DONE')
+
+
 def prepare(args):
     host_info()
 
@@ -654,6 +679,9 @@ def prepare(args):
 
     logger.debug('Effective module list: %s', modlist())
 
+    if ci['service'] == 'travis' and ci['os'] == 'linux':
+        fix_etc_hosts()
+
     # we're working with tags (detached heads) a lot: suppress advice
     call_git(['config', '--global', 'advice.detachedHead', 'false'])
 
@@ -816,6 +844,11 @@ USR_CXXFLAGS += {0}'''.format(os.environ['USR_CXXFLAGS'])
         sp.check_call(['choco', 'install'] + ci['choco'])
         fold_end('install.choco', 'Installing CHOCO packages')
 
+    if ci['os'] == 'linux' and ci['apt']:
+        fold_start('install.apt', 'Installing APT packages')
+        sp.check_call(['sudo', 'apt-get', '-y', 'install'] + ci['apt'])
+        fold_end('install.apt', 'Installing APT packages')
+
     if ci['os'] == 'linux' and 'RTEMS' in os.environ:
         tar_name = 'i386-rtems{0}-trusty-20171203-{0}.tar.bz2'.format(os.environ['RTEMS'])
         print('Downloading RTEMS {0} cross compiler: {1}'
@@ -854,6 +887,8 @@ USR_CXXFLAGS += {0}'''.format(os.environ['USR_CXXFLAGS'])
             place = places[setup[mod + "_VARNAME"]]
             print('{0}Building dependency {1} in {2}{3}'.format(ANSI_YELLOW, mod, place, ANSI_RESET))
             call_make(cwd=place, silent=silent_dep_builds)
+            if ci['clean_deps']:
+                call_make(args=['clean'], cwd=place, silent=silent_dep_builds)
         fold_end('build.dependencies', 'Build missing/outdated dependencies')
 
         print('{0}Dependency module information{1}'.format(ANSI_CYAN, ANSI_RESET))
@@ -876,7 +911,7 @@ USR_CXXFLAGS += {0}'''.format(os.environ['USR_CXXFLAGS'])
 def build(args):
     setup_for_build(args)
     fold_start('build.module', 'Build the main module')
-    call_make(args.makeargs)
+    call_make(args.makeargs, use_extra=True)
     fold_end('build.module', 'Build the main module')