J'ai contourné ce problème avec un hook git pre-commit qui réécrit la ligne Travis dans le README.md avec la branche actuelle. Un exemple d'utilisation et de code de pré-validation (Python) (pour la question posée) est ci-dessous.
Usage
dandye$ git checkout -b feature123 origin/master
Branch feature123 set up to track remote branch master from origin.
Switched to a new branch 'feature123'
dandye$ echo "* Feature123" >> README.md
dandye$ git add README.md
dandye$ git commit -m "Added Feature123"
Starting pre-commit hook...
Replacing:
[![Build Status](https://travis-ci.org/joegattnet/joegattnet_v3.png?branch=master)][travis]
with:
[![Build Status](https://travis-ci.org/joegattnet/joegattnet_v3.png?branch=feature123)][travis]
pre-commit hook complete.
[feature123 54897ee] Added Feature123
1 file changed, 2 insertions(+), 1 deletion(-)
dandye$ cat README.md |grep "Build Status"
[![Build Status](https://travis-ci.org/joegattnet/joegattnet_v3.png?branch=feature123)][travis]
dandye$
dandye$ cat .git/hooks/pre-commit
"""
Referencing current branch in github readme.md[1]
This pre-commit hook[2] updates the README.md file's
Travis badge with the current branch. Gist at[4].
[1] http://stackoverflow.com/questions/18673694/referencing-current-branch-in-github-readme-md
[2] http://www.git-scm.com/book/en/v2/Customizing-Git-Git-Hooks
[3] https://docs.travis-ci.com/user/status-images/
[4] https://gist.github.com/dandye/dfe0870a6a1151c89ed9
"""
import subprocess
GITHUB_USER="joegattnet"
REPO="joegattnet_v3"
print "Starting pre-commit hook..."
BRANCH=subprocess.check_output(["git",
"rev-parse",
"--abbrev-ref",
"HEAD"]).strip()
travis="[![Build Status](https://travis-ci.org/" \
"{GITHUB_USER}/{REPO}.png?" \
"branch={BRANCH})][travis]\n".format(BRANCH=BRANCH,
GITHUB_USER=GITHUB_USER,
REPO=REPO)
sentinel_str="[![Build Status]"
readmelines=open("README.md").readlines()
with open("README.md", "w") as fh:
for aline in readmelines:
if sentinel_str in aline and travis != aline:
print "Replacing:\n\t{aline}\nwith:\n\t{travis}".format(
aline=aline,
travis=travis)
fh.write(travis)
else:
fh.write(aline)
subprocess.check_output(["git", "add", "README.md" ])
print "pre-commit hook complete."