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[gnuastro-commits] master 2bb3da7 3/3: doc/genauthors: won't link to .ma

From: Mohammad Akhlaghi
Subject: [gnuastro-commits] master 2bb3da7 3/3: doc/genauthors: won't link to .mailmap if it already exists
Date: Fri, 30 Aug 2019 07:03:34 -0400 (EDT)

branch: master
commit 2bb3da7b879b0d2d1d1778c69d0853b80d02a4e5
Author: Mohammad Akhlaghi <address@hidden>
Commit: Mohammad Akhlaghi <address@hidden>

    doc/genauthors: won't link to .mailmap if it already exists
    Until now, `doc/genauthors' was assuming that it is run within the
    project's `doc' directory. However, it may happen (happened to me!) that it
    is run within the top project directory. In this scenario, it will delete
    the `.mailmap' file.
    With this commit, it checks the file's existance (as a link or as a normal
    file) and a link is only made (and later deleted) when it didn't already
 doc/genauthors | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/doc/genauthors b/doc/genauthors
index c26b69f..42806e9 100755
--- a/doc/genauthors
+++ b/doc/genauthors
@@ -44,7 +44,13 @@ if [ -d $1/.git ]; then
     # directory. The original `.mailmap' is in the `TOP_SRCDIR', so even
     # when the source and build directories are the same, there is no
     # problem.
-    ln -s $1/.mailmap .mailmap
+    #
+    # But in case `.mailmap' already exists (for example the script is run
+    # in the top source directory not from the `doc' directory, or if a
+    # symbolic link was already created), we won't do any copying.
+    if [ -e .mailmap ]; then keepmailmap=1;
+    else                     keepmailmap=0; ln -s $1/.mailmap .mailmap;
+    fi
     # Do NOT test if authors.texi is newer than ../.git.  In some cases the
     # list of authors is created empty when running make in top directory
@@ -57,8 +63,8 @@ if [ -d $1/.git ]; then
                 printf("(%s, %s)@*\n", $NF, $1)}' \
         > $1/doc/authors.texi
-    # Clean up:
-    rm .mailmap
+    # Clean up (if necessary)
+    if [ $keepmailmap = 0 ]; then rm .mailmap; fi
     # Check if the authors.texi file was actually written:
     if [ ! -s $1/doc/authors.texi ]; then

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