Add `-v` (verbose) option

so the normal output is focused on the given action, and output for
additional steps perfomed after the given action is only shown in
verbose mode.

Also, the output of wget is only shown in verbose mode. This is because
wget always shows some output (to stderr) even when there are no errors.
See https://serverfault.com/q/70889/302338

This should give a friendlier output.
See #360

src/stage2/22_zimfw_print.zsh.erb

@@ -1,5 +1,5 @@
 _zimfw_print() {
-  if (( ! _zquiet )); then
+  if (( _zprintlevel > 0 )); then
     print "${@}"
   fi
 }

src/stage2/30_zmodule.zsh.erb

@@ -98,7 +98,7 @@ Startup options:
   done
   if (( _zprepare_xargs )); then
     if (( ! zfrozen )); then
-      _zmodules_xargs+=${zmodule}$'\0'${zdir}$'\0'${zurl}$'\0'${ztype}$'\0'${zrev}$'\0'${_zquiet}$'\0'
+      _zmodules_xargs+=${zmodule}$'\0'${zdir}$'\0'${zurl}$'\0'${ztype}$'\0'${zrev}$'\0'${_zprintlevel}$'\0'
     fi
   else
     if (( zdisabled )); then

src/stage2/50_zimfw_clean_compiled.zsh.erb

@@ -1,6 +1,6 @@
 _zimfw_clean_compiled() {
   local zopt
-  (( ! _zquiet )) && zopt='-v'
+  (( _zprintlevel > 0 )) && zopt='-v'
   command find ${ZIM_HOME} \( -name '*.zwc' -o -name '*.zwc.old' \) -exec rm -f ${zopt} {} \; || return 1
   command rm -f ${zopt} <%= home %>/<%= startup_files_glob %>.zwc(|.old)(N) || return 1
   _zimfw_print -P '<%= done %>Done with clean-compiled. Run %Bzimfw compile%b to re-compile.'

src/stage2/50_zimfw_clean_dumpfile.zsh.erb

@@ -1,7 +1,7 @@
 _zimfw_clean_dumpfile() {
   local zdumpfile zopt
   zstyle -s ':zim:completion' dumpfile 'zdumpfile' || zdumpfile=<%= home %>/.zcompdump
-  (( ! _zquiet )) && zopt='-v'
+  (( _zprintlevel > 0 )) && zopt='-v'
   command rm -f ${zopt} ${zdumpfile}(|.zwc(|.old))(N) || return 1
   _zimfw_print -P '<%= done %>Done with clean-dumpfile. Restart your terminal to dump an updated configuration.'
 }

src/stage2/50_zimfw_compile.zsh.erb

@@ -1,3 +1,5 @@
 _zimfw_compile() {
-  source ${ZIM_HOME}/login_init.zsh "${@}"
+  local zopt
+  (( _zprintlevel <= 0 )) && zopt='-q'
+  source ${ZIM_HOME}/login_init.zsh ${zopt}
 }

src/stage2/50_zimfw_uninstall.zsh.erb

@@ -1,6 +1,6 @@
 _zimfw_uninstall() {
   local zopt zdir zmodule
-  (( ! _zquiet )) && zopt='-v'
+  (( _zprintlevel > 0 )) && zopt='-v'
   for zdir in ${ZIM_HOME}/modules/*(N/); do
     zmodule=${zdir:t}
     # If _zmodules and _zdisableds do not contain the zmodule

src/stage2/50_zimfw_upgrade.zsh.erb

@@ -3,7 +3,12 @@ _zimfw_upgrade() {
   local -r zurl=https://raw.githubusercontent.com/zimfw/zimfw/master/zimfw.zsh
   {
     if (( ${+commands[wget]} )); then
-      command wget -nv -O ${ztarget}.new ${zurl} || return 1
+      local zopt
+      (( _zprintlevel <= 1 )) && zopt='-q'
+      if ! command wget -nv ${zopt} -O ${ztarget}.new ${zurl}; then
+        (( _zprintlevel <= 1 )) && print -u2 -PR "%F{red}<%= error %>Error downloading %B${zurl}%b. Use %B-v%b option to see details.%f"
+        return 1
+      fi
     else
       command curl -fsSL -o ${ztarget}.new ${zurl} || return 1
     fi

src/stage2/80_zimfw.zsh.erb

@@ -1,6 +1,6 @@
 zimfw() {
   local -r zusage="
-Usage: %B${0}%b <action> [%B-q%b]
+Usage: %B${0}%b <action> [%B-q%b|%B-v%b]
 
 Actions:
   %Bbuild%b           Build init.zsh and login_init.zsh
@@ -16,16 +16,18 @@ Actions:
 
 Options:
   %B-q%b              Quiet, only outputs errors
+  %B-v%b              Verbose
 "
   local ztool _zmodules_xargs
   local -a _zdisableds _zmodules _zfpaths _zfunctions _zscripts
-  local -i _zquiet=0
+  local -i _zprintlevel=1
   if (( # > 2 )); then
      print -u2 -PR "%F{red}${0}: Too many options%f"$'\n'${zusage}
      return 1
   elif (( # > 1 )); then
     case ${2} in
-      -q) _zquiet=1 ;;
+      -q) _zprintlevel=0 ;;
+      -v) _zprintlevel=2 ;;
       *)
         print -u2 -PR "%F{red}${0}: Unknown option ${2}%f"$'\n'${zusage}
         return 1
@@ -43,21 +45,30 @@ Options:
   esac
 
   case ${1} in
-    build) _zimfw_source_zimrc && _zimfw_build && _zimfw_compile ${2} ;;
+    build)
+      _zimfw_source_zimrc && _zimfw_build || return 1
+      (( _zprintlevel-- ))
+      _zimfw_compile
+      ;;
     init) _zimfw_source_zimrc && _zimfw_build ;;
     clean) _zimfw_clean_compiled && _zimfw_clean_dumpfile ;;
     clean-compiled) _zimfw_clean_compiled ;;
     clean-dumpfile) _zimfw_clean_dumpfile ;;
-    compile) _zimfw_build_login_init && _zimfw_compile ${2} ;;
+    compile) _zimfw_build_login_init && _zimfw_compile ;;
     info) _zimfw_info ;;
     install|update)
       _zimfw_source_zimrc 1 || return 1
       print -Rn ${_zmodules_xargs} | xargs -0 -n6 -P10 zsh -c ${ztool} ${1} && \
-          _zimfw_print -PR "<%= done %>Done with ${1}. Restart your terminal for any changes to take effect." && \
+          _zimfw_print -PR "<%= done %>Done with ${1}. Restart your terminal for any changes to take effect." || return 1
-          _zimfw_source_zimrc && _zimfw_build && _zimfw_compile ${2}
+      (( _zprintlevel-- ))
+      _zimfw_source_zimrc && _zimfw_build && _zimfw_compile
       ;;
     uninstall) _zimfw_source_zimrc && _zimfw_uninstall ;;
-    upgrade) _zimfw_upgrade && _zimfw_build_login_init && _zimfw_compile ${2} ;;
+    upgrade)
+      _zimfw_upgrade || return 1
+      (( _zprintlevel-- ))
+      _zimfw_build_login_init && _zimfw_compile
+      ;;
     *)
       print -u2 -PR "%F{red}${0}: Unknown action ${1}%f"$'\n'${zusage}
       return 1

src/tools/install.zsh.erb

@@ -3,15 +3,15 @@ readonly MODULE=${1}
 readonly DIR=${2}
 readonly URL=${3}
 readonly REV=${5}
-readonly -i QUIET=${6}
+readonly -i PRINTLEVEL=${6}
 readonly CLEAR_LINE=$'\E[2K\r'
 if [[ -e ${DIR} ]]; then
   # Already exists
   return 0
 fi
-(( ! QUIET )) && print -Rn ${CLEAR_LINE}"Installing ${MODULE}<%= ellipsis %>"
+(( PRINTLEVEL > 0 )) && print -Rn ${CLEAR_LINE}"Installing ${MODULE}<%= ellipsis %>"
 if ERR=$(command git clone -b ${REV} -q --recursive ${URL} ${DIR} 2>&1); then
-  if (( ! QUIET )); then
+  if (( PRINTLEVEL > 0 )); then
     print -PR ${CLEAR_LINE}"<%= okay %>%B${MODULE}:%b Installed"
   fi
 else

src/tools/update.zsh.erb

@@ -4,9 +4,9 @@ readonly DIR=${2}
 readonly URL=${3}
 readonly TYPE=${4}
 readonly REV=${5}
-readonly -i QUIET=${6}
+readonly -i PRINTLEVEL=${6}
 readonly CLEAR_LINE=$'\E[2K\r'
-(( ! QUIET )) && print -Rn ${CLEAR_LINE}"Updating ${MODULE}<%= ellipsis %>"
+(( PRINTLEVEL > 0 )) && print -Rn ${CLEAR_LINE}"Updating ${MODULE}<%= ellipsis %>"
 if ! builtin cd -q ${DIR} 2>/dev/null; then
   print -u2 -PR ${CLEAR_LINE}"%F{red}<%= error %>%B${MODULE}:%b Not installed%f"
   return 1
@@ -21,7 +21,7 @@ if [[ ${URL} != $(command git config --get remote.origin.url) ]]; then
 fi
 if [[ ${TYPE} == tag ]]; then
   if [[ ${REV} == $(command git describe --tags --exact-match 2>/dev/null) ]]; then
-    (( ! QUIET )) && print -PR ${CLEAR_LINE}"<%= okay %>%B${MODULE}:%b Already up to date"
+    (( PRINTLEVEL > 0 )) && print -PR ${CLEAR_LINE}"<%= okay %>%B${MODULE}:%b Already up to date"
     return 0
   fi
 fi
@@ -50,7 +50,7 @@ else
   OUT="Updating to ${TYPE} ${REV}"
 fi
 if ERR=$(command git submodule update --init --recursive -q 2>&1); then
-  if (( ! QUIET )); then
+  if (( PRINTLEVEL > 0 )); then
     [[ -n ${LOG} ]] && OUT=${OUT}$'\n'${(F):-  ${(f)^LOG}}
     print -PR ${CLEAR_LINE}"<%= okay %>%B${MODULE}:%b ${OUT}"
   fi

src/zimfw.zsh.erb

@@ -6,7 +6,7 @@ class Zim
     @home = "${ZDOTDIR:-${HOME}}"
     @min_zsh_version = "5.2"
     @startup_files_glob = ".z(shenv|profile|shrc|login|logout)"
-    @version = "1.0.1"
+    @version = "1.1.0-SNAPSHOT"
     @ellipsis = " ..."
     @okay = "%F{green})%f "
     @error = "x "

zimfw.zsh

@@ -33,7 +33,7 @@ fi
 : ${ZIM_HOME=${0:A:h}}
 
 _zimfw_print() {
-  if (( ! _zquiet )); then
+  if (( _zprintlevel > 0 )); then
     print "${@}"
   fi
 }
@@ -200,7 +200,7 @@ Startup options:
   done
   if (( _zprepare_xargs )); then
     if (( ! zfrozen )); then
-      _zmodules_xargs+=${zmodule}$'\0'${zdir}$'\0'${zurl}$'\0'${ztype}$'\0'${zrev}$'\0'${_zquiet}$'\0'
+      _zmodules_xargs+=${zmodule}$'\0'${zdir}$'\0'${zurl}$'\0'${ztype}$'\0'${zrev}$'\0'${_zprintlevel}$'\0'
     fi
   else
     if (( zdisabled )); then
@@ -239,7 +239,7 @@ _zimfw_source_zimrc() {
 
 _zimfw_clean_compiled() {
   local zopt
-  (( ! _zquiet )) && zopt='-v'
+  (( _zprintlevel > 0 )) && zopt='-v'
   command find ${ZIM_HOME} \( -name '*.zwc' -o -name '*.zwc.old' \) -exec rm -f ${zopt} {} \; || return 1
   command rm -f ${zopt} ${ZDOTDIR:-${HOME}}/.z(shenv|profile|shrc|login|logout).zwc(|.old)(N) || return 1
   _zimfw_print -P 'Done with clean-compiled. Run %Bzimfw compile%b to re-compile.'
@@ -248,17 +248,19 @@ _zimfw_clean_compiled() {
 _zimfw_clean_dumpfile() {
   local zdumpfile zopt
   zstyle -s ':zim:completion' dumpfile 'zdumpfile' || zdumpfile=${ZDOTDIR:-${HOME}}/.zcompdump
-  (( ! _zquiet )) && zopt='-v'
+  (( _zprintlevel > 0 )) && zopt='-v'
   command rm -f ${zopt} ${zdumpfile}(|.zwc(|.old))(N) || return 1
   _zimfw_print -P 'Done with clean-dumpfile. Restart your terminal to dump an updated configuration.'
 }
 
 _zimfw_compile() {
-  source ${ZIM_HOME}/login_init.zsh "${@}"
+  local zopt
+  (( _zprintlevel <= 0 )) && zopt='-q'
+  source ${ZIM_HOME}/login_init.zsh ${zopt}
 }
 
 _zimfw_info() {
-  print 'Zim version:  1.0.1 (previous commit is 28e4345)'
+  print 'Zim version:  1.1.0-SNAPSHOT (previous commit is b9bca2d)'
   print -R 'ZIM_HOME:     '${ZIM_HOME}
   print -R 'Zsh version:  '${ZSH_VERSION}
   print -R 'System info:  '$(command uname -a)
@@ -266,7 +268,7 @@ _zimfw_info() {
 
 _zimfw_uninstall() {
   local zopt zdir zmodule
-  (( ! _zquiet )) && zopt='-v'
+  (( _zprintlevel > 0 )) && zopt='-v'
   for zdir in ${ZIM_HOME}/modules/*(N/); do
     zmodule=${zdir:t}
     # If _zmodules and _zdisableds do not contain the zmodule
@@ -282,7 +284,12 @@ _zimfw_upgrade() {
   local -r zurl=https://raw.githubusercontent.com/zimfw/zimfw/master/zimfw.zsh
   {
     if (( ${+commands[wget]} )); then
-      command wget -nv -O ${ztarget}.new ${zurl} || return 1
+      local zopt
+      (( _zprintlevel <= 1 )) && zopt='-q'
+      if ! command wget -nv ${zopt} -O ${ztarget}.new ${zurl}; then
+        (( _zprintlevel <= 1 )) && print -u2 -PR "%F{red}x Error downloading %B${zurl}%b. Use %B-v%b option to see details.%f"
+        return 1
+      fi
     else
       command curl -fsSL -o ${ztarget}.new ${zurl} || return 1
     fi
@@ -294,7 +301,7 @@ _zimfw_upgrade() {
 
 zimfw() {
   local -r zusage="
-Usage: %B${0}%b <action> [%B-q%b]
+Usage: %B${0}%b <action> [%B-q%b|%B-v%b]
 
 Actions:
   %Bbuild%b           Build init.zsh and login_init.zsh
@@ -310,16 +317,18 @@ Actions:
 
 Options:
   %B-q%b              Quiet, only outputs errors
+  %B-v%b              Verbose
 "
   local ztool _zmodules_xargs
   local -a _zdisableds _zmodules _zfpaths _zfunctions _zscripts
-  local -i _zquiet=0
+  local -i _zprintlevel=1
   if (( # > 2 )); then
      print -u2 -PR "%F{red}${0}: Too many options%f"$'\n'${zusage}
      return 1
   elif (( # > 1 )); then
     case ${2} in
-      -q) _zquiet=1 ;;
+      -q) _zprintlevel=0 ;;
+      -v) _zprintlevel=2 ;;
       *)
         print -u2 -PR "%F{red}${0}: Unknown option ${2}%f"$'\n'${zusage}
         return 1
@@ -334,15 +343,15 @@ readonly MODULE=\${1}
 readonly DIR=\${2}
 readonly URL=\${3}
 readonly REV=\${5}
-readonly -i QUIET=\${6}
+readonly -i PRINTLEVEL=\${6}
 readonly CLEAR_LINE=$'\E[2K\r'
 if [[ -e \${DIR} ]]; then
   # Already exists
   return 0
 fi
-(( ! QUIET )) && print -Rn \${CLEAR_LINE}\"Installing \${MODULE} ...\"
+(( PRINTLEVEL > 0 )) && print -Rn \${CLEAR_LINE}\"Installing \${MODULE} ...\"
 if ERR=\$(command git clone -b \${REV} -q --recursive \${URL} \${DIR} 2>&1); then
-  if (( ! QUIET )); then
+  if (( PRINTLEVEL > 0 )); then
     print -PR \${CLEAR_LINE}\"%F{green})%f %B\${MODULE}:%b Installed\"
   fi
 else
@@ -358,9 +367,9 @@ readonly DIR=\${2}
 readonly URL=\${3}
 readonly TYPE=\${4}
 readonly REV=\${5}
-readonly -i QUIET=\${6}
+readonly -i PRINTLEVEL=\${6}
 readonly CLEAR_LINE=$'\E[2K\r'
-(( ! QUIET )) && print -Rn \${CLEAR_LINE}\"Updating \${MODULE} ...\"
+(( PRINTLEVEL > 0 )) && print -Rn \${CLEAR_LINE}\"Updating \${MODULE} ...\"
 if ! builtin cd -q \${DIR} 2>/dev/null; then
   print -u2 -PR \${CLEAR_LINE}\"%F{red}x %B\${MODULE}:%b Not installed%f\"
   return 1
@@ -375,7 +384,7 @@ if [[ \${URL} != \$(command git config --get remote.origin.url) ]]; then
 fi
 if [[ \${TYPE} == tag ]]; then
   if [[ \${REV} == \$(command git describe --tags --exact-match 2>/dev/null) ]]; then
-    (( ! QUIET )) && print -PR \${CLEAR_LINE}\"%F{green})%f %B\${MODULE}:%b Already up to date\"
+    (( PRINTLEVEL > 0 )) && print -PR \${CLEAR_LINE}\"%F{green})%f %B\${MODULE}:%b Already up to date\"
     return 0
   fi
 fi
@@ -404,7 +413,7 @@ else
   OUT=\"Updating to \${TYPE} \${REV}\"
 fi
 if ERR=\$(command git submodule update --init --recursive -q 2>&1); then
-  if (( ! QUIET )); then
+  if (( PRINTLEVEL > 0 )); then
     [[ -n \${LOG} ]] && OUT=\${OUT}$'\n'\${(F):-  \${(f)^LOG}}
     print -PR \${CLEAR_LINE}\"%F{green})%f %B\${MODULE}:%b \${OUT}\"
   fi
@@ -417,21 +426,30 @@ fi
   esac
 
   case ${1} in
-    build) _zimfw_source_zimrc && _zimfw_build && _zimfw_compile ${2} ;;
+    build)
+      _zimfw_source_zimrc && _zimfw_build || return 1
+      (( _zprintlevel-- ))
+      _zimfw_compile
+      ;;
     init) _zimfw_source_zimrc && _zimfw_build ;;
     clean) _zimfw_clean_compiled && _zimfw_clean_dumpfile ;;
     clean-compiled) _zimfw_clean_compiled ;;
     clean-dumpfile) _zimfw_clean_dumpfile ;;
-    compile) _zimfw_build_login_init && _zimfw_compile ${2} ;;
+    compile) _zimfw_build_login_init && _zimfw_compile ;;
     info) _zimfw_info ;;
     install|update)
       _zimfw_source_zimrc 1 || return 1
       print -Rn ${_zmodules_xargs} | xargs -0 -n6 -P10 zsh -c ${ztool} ${1} && \
-          _zimfw_print -PR "Done with ${1}. Restart your terminal for any changes to take effect." && \
+          _zimfw_print -PR "Done with ${1}. Restart your terminal for any changes to take effect." || return 1
-          _zimfw_source_zimrc && _zimfw_build && _zimfw_compile ${2}
+      (( _zprintlevel-- ))
+      _zimfw_source_zimrc && _zimfw_build && _zimfw_compile
       ;;
     uninstall) _zimfw_source_zimrc && _zimfw_uninstall ;;
-    upgrade) _zimfw_upgrade && _zimfw_build_login_init && _zimfw_compile ${2} ;;
+    upgrade)
+      _zimfw_upgrade || return 1
+      (( _zprintlevel-- ))
+      _zimfw_build_login_init && _zimfw_compile
+      ;;
     *)
       print -u2 -PR "%F{red}${0}: Unknown action ${1}%f"$'\n'${zusage}
       return 1