Add $MBLAZE environment variable to set profile location

As a side benefit, all callers of blaze822_home_file need only pass
the filename, so the base directory is set in only one place.

5 files changed, 17 insertions, 9 deletions

diff --git a/man/mblaze.7 b/man/mblaze.7
index f87691a..ceafe4e 100644
--- a/man/mblaze.7
+++ b/man/mblaze.7
@@ -144,9 +144,9 @@ As usual with pipes, the sky is the limit.
 deals with messages (which are files),
 folders (which are Maildir folders),
 sequences (which are newline-separated lists of messages, possibly persisted on disk in
-.Pa ~/.mblaze/seq ) ,
+.Pa ${MBLAZE:-$HOME/.mblaze}/seq ) ,
 and the current message (kept as a symlink in
-.Pa ~/.mblaze/cur ) .
+.Pa ${MBLAZE:-$HOME/.mblaze}/cur ) .
 .Pp
 Messages in the persisted sequence can be referred to using special
 syntax as explained in
diff --git a/man/mcom.1 b/man/mcom.1
index 69ea5d4..72352c2 100644
--- a/man/mcom.1
+++ b/man/mcom.1
@@ -47,17 +47,21 @@ Delete the draft and quit.
 .Bl -tag -width Ds
 .It Ev EDITOR
 Editor used to compose mail.
+.It Ev MBLAZE
+Directory containing mblaze configuration.
+(Default:
+.Pa $HOME/.mblaze)
 .El
 .Sh FILES
 .Bl -tag -width Ds
 .It Pa snd.*
 Draft messages (kept in current directory)
-.It Pa ~/.mblaze/headers
+.It Pa ${MBLAZE:-$HOME/.mblaze}/headers
 Default headers for each mail.
 (Put your
 .Sq Li From\&:
 line there.)
-.It Pa ~/.signature
+.It Pa ${MBLAZE:-$HOME/.mblaze}/signature || ~/.signature
 Default signature.
 .El
 .Sh EXIT STATUS
diff --git a/man/mgenmid.1 b/man/mgenmid.1
index 6f70fee..9d8f646 100644
--- a/man/mgenmid.1
+++ b/man/mgenmid.1
@@ -19,7 +19,7 @@ The fully qualified domain name is computed by:
 Using
 .Sq Li "FQDN:"
 from
-.Pa "~/.mblaze/profile"
+.Pa "${MBLAZE:-$HOME/.mblaze}/profile"
 (if set).
 .It
 Resolving the current hostname.
@@ -27,7 +27,7 @@ Resolving the current hostname.
 Using the host part of the address in
 .Sq Li "Local-Mailbox:"
 from
-.Pa "~/.mblaze/profile"
+.Pa "${MBLAZE:-$HOME/.mblaze}/profile"
 (if set).
 .El
 .Pp
diff --git a/man/mseq.1 b/man/mseq.1
index 50b1029..604b46a 100644
--- a/man/mseq.1
+++ b/man/mseq.1
@@ -68,10 +68,14 @@ and exit.
 .El
 .Sh ENVIRONMENT
 .Bl -tag -width Ds
+.It Ev MBLAZE
+Directory containing mblaze configuration.
+(Default:
+.Pa $HOME/.mblaze)
 .It Ev MAILCUR
 Symbolic link referring to the current message.
 (Default:
-.Pa ~/.mblaze/cur )
+.Pa ${MBLAZE:-$HOME/.mblaze}/cur )
 .It Ev MAILDOT
 When set to a file name, overrides the current message.
 (Prefer using
@@ -80,7 +84,7 @@ instead.)
 .It Ev MAILSEQ
 File were the sequence is stored.
 (Default:
-.Pa ~/.mblaze/seq )
+.Pa ${MBLAZE:-$HOME/.mblaze}/seq )
 .El
 .Sh EXIT STATUS
 .Ex -std
diff --git a/man/mshow.1 b/man/mshow.1
index f58d2ec..90cba25 100644
--- a/man/mshow.1
+++ b/man/mshow.1
@@ -99,7 +99,7 @@ parts,
 and re-encodes them into UTF-8 if necessary.
 .Pp
 Other filters can be specified in the file
-.Pa ~/.mblaze/filter
+.Pa ${MBLAZE:-$HOME/.mblaze}/filter
 in the format
 .D1 Ar type/subtype Ns Li \&: Ar command
 or