Add edit command, use pandoc to render show command

.gitignore

@@ -0,0 +1 @@
+*.swp

README.md

@@ -22,6 +22,7 @@ Memo organizes is structured through topics which are folders in `~/memo`.
 ## Installation
 
 * Gentoo : use [my overlay](https://github.com/mrVanDalo/overlay) and install `app-misc/memo`
+* NixOs : just do `nix-shell -p memo`
 
 ## Configuration
 

doc/memo.1

@@ -1,5 +1,5 @@
 .\" Text automatically generated by txt2man
-.TH memo 1 "19 June 2017" "doc" "Linux Reference Manual"
+.TH memo 1 "17 May 2018" "doc" "Linux Reference Manual"
 .SH NAME
 \fBmemo
 \fB
@@ -43,11 +43,16 @@ shows memo.md in the topic folder.
 also showes a list of all files in the topic folder
 .TP
 .B
+edit <topic>
+opens your favorite editor to edit the \fBmemo\fP topic
+.TP
+.B
 list
 prints a list of all topics.
 .RE
 .PP
 
+
 .SH CONFIGURATION
 
 .TP
@@ -55,6 +60,10 @@ prints a list of all topics.
 $MEMO_DIR
 holds the folder where to store the \fBmemo\fP files.
 Default is $HOME/\fBmemo\fP
+.TP
+.B
+$EDITOR
+Your favorite editor. Must be set for the edit command
 .SH EXAMPLE
 
 

doc/memo.txt

@@ -24,13 +24,18 @@ COMMANDS
   show <topic>    shows memo.md in the topic folder.
                   also showes a list of all files in the topic folder
 
+  edit <topic>    opens your favorite editor to edit the memo topic
+
   list            prints a list of all topics.
 
 
+
 CONFIGURATION
 
   $MEMO_DIR   holds the folder where to store the memo files.
-                Default is $HOME/memo
+              Default is $HOME/memo
+
+  $EDITOR     Your favorite editor. Must be set for the edit command
 
 EXAMPLE
 

memo

@@ -20,17 +20,37 @@ function precondition::provide_memo_folder(){
 function precondition::provide_topic(){
     topic_name=$1
     topic_path=${MEMO_FOLDER}/${topic_name}
+    topic_file=${topic_path}/memo.md
 
     if [[ ! -d ${topic_path} ]]
     then
         echo "create memo topic : ${topic_name}"
         mkdir -p ${topic_path}
-        echo "# ${topic_name}" > ${topic_path}/memo.md
+        echo "# Memo" > ${topic_file}
     fi
 }
 
 
 
+#
+# edit command
+#
+
+function edit_memo() {
+    topic_name=$1
+    precondition::provide_topic ${topic_name}
+    topic_path=${MEMO_FOLDER}/${topic_name}
+
+    if [[ -z ${EDITOR} ]]
+    then
+      echo "you have to define the ${EDITOR} variable"
+      exit 1
+    fi
+
+    ${EDITOR} ${topic_file}
+
+}
+
 #
 # add command
 #
@@ -39,20 +59,21 @@ function add_memo(){
     topic_name=$1
     precondition::provide_topic ${topic_name}
     topic_path=${MEMO_FOLDER}/${topic_name}
+    topic_file=${topic_path}/memo.md
 
     shift
     if [[ $# -gt 0 ]]
     then
         memo=$@
         echo "append memo to ${topic_name}"
-        cat >>${topic_path}/memo.md <<EOF
+        cat >>${topic_file} <<EOF
 
 ${memo}
 EOF
     else
         echo "append input to ${topic_name}"
-        echo "" >>${topic_path}/memo.md
+        echo "" >>${topic_file}
-        cat >>${topic_path}/memo.md -
+        cat >>${topic_file} -
     fi
 
 }
@@ -136,11 +157,22 @@ function show_topic(){
     if [[ -f ${topic_file} ]]
     then
         echo
-        cat ${topic_file}
+        #cat ${topic_file}
+        cat <(
+            echo "% ${topic_name}" && \
+            echo "% $( whoami )" && \
+            echo "% $( date +%Y-%m-%d )" && \
+            cat ${topic_file} && \
+            echo && \
+            echo "# Folders" && \
+            echo && \
+            find ${topic_path} -printf "* %p\n") | \
+            pandoc - -s -t man | \
+            man -l -
         echo
     fi
 
-    tree -a ${topic_path}
+    # tree -a ${topic_path}
 }
 
 
@@ -194,6 +226,9 @@ Commands:
     show topic file and list all file in the
     ${MEMO_FOLDER}/<topic>/
 
+  edit <topic>
+    edit topic ${MEMO_FOLDER}/<topic>.md
+
   list
     prints a list of all topics
 
@@ -223,6 +258,9 @@ case $command in
     show)
         show_topic $@
         ;;
+    edit)
+        edit_memo $@
+        ;;
     list)
         list_topics
         ;;