checknlink: return False if .hgtmp file preexists (issue2517)
If os_link fails on Windows, errno is always errno.EINVAL,
so we can't really say if the testlink could not be created
because (a) the FS doesn't support hardlinks or (b) there
is a leaked .hgtmp file lying around from a previous crashed
run.
So let's err on the safe side, keep the code simple and assume
we can't detect hardlinks in both cases.
# Test the plumbing of mq.git option
# Automatic upgrade itself is tested elsewhere.
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ echo "[diff]" >> $HGRCPATH
$ echo "nodates=1" >> $HGRCPATH
$ hg init repo-auto
$ cd repo-auto
git=auto: regular patch creation:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f adda
$ cat .hg/patches/adda
# HG changeset patch
# Parent 0000000000000000000000000000000000000000
# Date 0 0
diff -r 000000000000 -r ef8dafc9fa4c a
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+a
git=auto: git patch creation with copy:
$ hg cp a b
$ hg qnew -d '0 0' -f copy
$ cat .hg/patches/copy
# HG changeset patch
# Parent ef8dafc9fa4caff80f6e243eb0171bcd60c455b4
# Date 0 0
diff --git a/a b/b
copy from a
copy to b
git=auto: git patch when using --git:
$ echo regular > regular
$ hg add regular
$ hg qnew -d '0 0' --git -f git
$ cat .hg/patches/git
# HG changeset patch
# Parent 99586d5f048c399e20f81cee41fbb3809c0e735d
# Date 0 0
diff --git a/regular b/regular
new file mode 100644
--- /dev/null
+++ b/regular
@@ -0,0 +1,1 @@
+regular
git=auto: regular patch after qrefresh without --git:
$ hg qrefresh -d '0 0'
$ cat .hg/patches/git
# HG changeset patch
# Parent 99586d5f048c399e20f81cee41fbb3809c0e735d
# Date 0 0
diff -r 99586d5f048c regular
--- /dev/null
+++ b/regular
@@ -0,0 +1,1 @@
+regular
$ cd ..
$ hg init repo-keep
$ cd repo-keep
$ echo '[mq]' > .hg/hgrc
$ echo 'git = KEEP' >> .hg/hgrc
git=keep: git patch with --git:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f --git git
$ cat .hg/patches/git
# HG changeset patch
# Parent 0000000000000000000000000000000000000000
# Date 0 0
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+a
git=keep: git patch after qrefresh without --git:
$ echo a >> a
$ hg qrefresh -d '0 0'
$ cat .hg/patches/git
# HG changeset patch
# Parent 0000000000000000000000000000000000000000
# Date 0 0
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,2 @@
+a
+a
$ cd ..
$ hg init repo-yes
$ cd repo-yes
$ echo '[mq]' > .hg/hgrc
$ echo 'git = yes' >> .hg/hgrc
git=yes: git patch:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f git
$ cat .hg/patches/git
# HG changeset patch
# Parent 0000000000000000000000000000000000000000
# Date 0 0
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+a
git=yes: git patch after qrefresh:
$ echo a >> a
$ hg qrefresh -d '0 0'
$ cat .hg/patches/git
# HG changeset patch
# Parent 0000000000000000000000000000000000000000
# Date 0 0
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,2 @@
+a
+a
$ cd ..
$ hg init repo-no
$ cd repo-no
$ echo '[diff]' > .hg/hgrc
$ echo 'git = True' >> .hg/hgrc
$ echo '[mq]' > .hg/hgrc
$ echo 'git = False' >> .hg/hgrc
git=no: regular patch with copy:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f adda
$ hg cp a b
$ hg qnew -d '0 0' -f regular
$ cat .hg/patches/regular
# HG changeset patch
# Parent ef8dafc9fa4caff80f6e243eb0171bcd60c455b4
# Date 0 0
diff -r ef8dafc9fa4c -r a70404f79ba3 b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+a
git=no: regular patch after qrefresh with copy:
$ hg cp a c
$ hg qrefresh -d '0 0'
$ cat .hg/patches/regular
# HG changeset patch
# Parent ef8dafc9fa4caff80f6e243eb0171bcd60c455b4
# Date 0 0
diff -r ef8dafc9fa4c b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+a
diff -r ef8dafc9fa4c c
--- /dev/null
+++ b/c
@@ -0,0 +1,1 @@
+a
$ cd ..