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Codesign says "no identity found" however the identity is on the keychain

I am integrating code signing into our builds and have created a custom keychain which is held within the source code tree and used to sign the code (it's copied to ~/Library/Keychains before being used, so it's in a well known location).

However when attempting to sign I get an error:

$ /usr/bin/codesign --sign='Mac Developer: John Doe (AA1AAA1AAA)' \
    --keychain=~/Library/Keychains/xxx.keychain \
    dist/64/gmake/release/bin/libmylib.dylib

Mac Developer: John Doe (AA1AAA1AAA): no identity found

However:

$ security find-identity -p codesigning ~/Library/Keychains/xxx.keychain

Policy: Code Signing
  Matching identities
  1) 49F2FBE79899DF18A9638AC6B1302E2EB6E079AD "Mac Developer: John Doe (AA1AAA1AAA)"
     1 identities found

  Valid identities only
  1) 49F2FBE79899DF18A9638AC6B1302E2EB6E079AD "Mac Developer: John Doe (AA1AAA1AAA)"

So I don't understand why codesign is unable to find the identity.

Can anyone suggest a solution?

Note that I have also tried with the identity's SHA-1, with the same result.

Solution

  • Some of codesign's error messages are less than clear. The problem here is that codesign couldn't find the keychain, and that is caused by the use of --keychain=~/path. This is interpreted as a single argument and no tilde expansion is performed. If you modify your command to use separate arguments it should work as expected:

    codesign --sign 'Mac Developer: John Doe (AA1AAA1AAA)' \
    --keychain ~/Library/Keychains/xxx.keychain \
    dist/64/gmake/release/bin/libmylib.dylib